#localgroup — Public Fediverse posts

New in the #VirtualObservatory: “INT monitoring of Local Grp. VII. IC 10 photometry” by Gholami M. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/54
#LocalGroup #VariableStars #DwarfGalaxies #Photometry

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #ActivityInThePub #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #ActivityInThePub #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #ActivityInThePub #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #ActivityInThePub #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #ActivityInThePub #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

Deploying Quantum Computing Resistant Encryption Algorithms — a risk-based approach from Hoyt L Kesterson II

Description: Hoyt starts with Caesar and works up to public key and moves on to new encryption methods that resist quantum computing

This Thursday @ 19:00 AZ ( UTC - 7 )

1702 E Highland, Phoenix

@FLOSS_Stammtisch is next Tuesday on the 19th also starting at 19:00

#LocalGroup #Phoenix #Arizona #FLOSSgroup #LUG #PLUG #Stammtisch #FLOSS_Stammtisch #encryption #InfoSec #QuantumComputing

Deploying Quantum Computing Resistant Encryption Algorithms — a risk-based approach from Hoyt L Kesterson II

Description: Hoyt starts with Caesar and works up to public key and moves on to new encryption methods that resist quantum computing

This Thursday @ 19:00 AZ ( UTC - 7 )

1702 E Highland, Phoenix

@FLOSS_Stammtisch is next Tuesday on the 19th also starting at 19:00

#LocalGroup #Phoenix #Arizona #FLOSSgroup #LUG #PLUG #Stammtisch #FLOSS_Stammtisch #encryption #InfoSec #QuantumComputing

Deploying Quantum Computing Resistant Encryption Algorithms — a risk-based approach from Hoyt L Kesterson II

Description: Hoyt starts with Caesar and works up to public key and moves on to new encryption methods that resist quantum computing

This Thursday @ 19:00 AZ ( UTC - 7 )

1702 E Highland, Phoenix

@FLOSS_Stammtisch is next Tuesday on the 19th also starting at 19:00

#LocalGroup #Phoenix #Arizona #FLOSSgroup #LUG #PLUG #Stammtisch #FLOSS_Stammtisch #encryption #InfoSec #QuantumComputing

Deploying Quantum Computing Resistant Encryption Algorithms — a risk-based approach from Hoyt L Kesterson II

Description: Hoyt starts with Caesar and works up to public key and moves on to new encryption methods that resist quantum computing

This Thursday @ 19:00 AZ ( UTC - 7 )

1702 E Highland, Phoenix

@FLOSS_Stammtisch is next Tuesday on the 19th also starting at 19:00

#LocalGroup #Phoenix #Arizona #FLOSSgroup #LUG #PLUG #Stammtisch #FLOSS_Stammtisch #encryption #InfoSec #QuantumComputing

Deploying Quantum Computing Resistant Encryption Algorithms — a risk-based approach from Hoyt L Kesterson II

Description: Hoyt starts with Caesar and works up to public key and moves on to new encryption methods that resist quantum computing

This Thursday @ 19:00 AZ ( UTC - 7 )

1702 E Highland, Phoenix

@FLOSS_Stammtisch is next Tuesday on the 19th also starting at 19:00

#LocalGroup #Phoenix #Arizona #FLOSSgroup #LUG #PLUG #Stammtisch #FLOSS_Stammtisch #encryption #InfoSec #QuantumComputing

https://www.europesays.com/ie/463851/ Hubble Captures Spiral Galaxy Packed with Brilliant Star Clusters: NGC 3137 #Éire #esa #Galaxy #Hubble #IE #Ireland #LocalGroup #nasa #NGC3137 #NGC3175Group #Science #SpiralGalaxy #star #StarCluster #StarFormation

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

St Patricks Day is busy in pubs, so we might be a couple doors down from Boulders at Green Corner for Greek food

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

St Patricks Day is busy in pubs, so we might be a couple doors down from Boulders at Green Corner for Greek food

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

St Patricks Day is busy in pubs, so we might be a couple doors down from Boulders at Green Corner for Greek food

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

St Patricks Day is busy in pubs, so we might be a couple doors down from Boulders at Green Corner for Greek food

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

St Patricks Day is busy in pubs, so we might be a couple doors down from Boulders at Green Corner for Greek food

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi @FLOSS_Stammtisch

#PLUG Topic: Network Basics for the uninitiated. A core topics discussion for those who don't know where to start

This Thu @ 19:00 AZ ( UTC - 7 )

1702 E Highland, Phoenix

Bio: Alyssa enjoys the various Linux options and currently works as a Senior Network Engineer

@FLOSS_Stammtisch is next Tue, which is St Patrick's Day. It will be in person near Boulders on Southern in Mesa, maybe at Green Corner ( gyros! )

#LocalGroup #Arizona #FLOSSgroup #Stammtisch #FLOSS_Stammtisch #networking
@PLUG

𝗪𝗜𝗞𝗜𝗣𝗘𝗗𝗜𝗔'𝗦 𝗙𝗘𝗔𝗧𝗨𝗥𝗘𝗗 𝗔𝗥𝗧𝗜𝗖𝗟𝗘

✧ galaxy ✧

A galaxy is a massive system bound together by gravity that contains stars and surrounding matter, stellar remnants, interstellar matter, and dark matter, all orbiting a common center of gravity. Typical galaxies range from as few as 10 million stars up to supergiants with 100 trillion stars, but most of the mass is dark matter. The Solar System is in the Milky Way ga...

#SolarSystem #LocalGroup #Earth #Wikipedia
https://en.wikipedia.org/wiki/Galaxy

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Including #ActivityInThePub since Boulders is a pub

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@socallinuxexpo is in a few weeks, before PLUG or Stammtisch in March

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi and #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Including #ActivityInThePub since Boulders is a pub

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@socallinuxexpo is in a few weeks, before PLUG or Stammtisch in March

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi and #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Including #ActivityInThePub since Boulders is a pub

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@socallinuxexpo is in a few weeks, before PLUG or Stammtisch in March

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi and #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Including #ActivityInThePub since Boulders is a pub

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@socallinuxexpo is in a few weeks, before PLUG or Stammtisch in March

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi and #AZFedi @FLOSS_Stammtisch

FLOSS_Stammtisch is Tuesday night in Mesa, Arizona

We meet monthly at 19:00 AZ time ( UTC-7 ) for conversation, food and drinks on the third Tuesday

Including #ActivityInThePub since Boulders is a pub

Location - Boulders on Southern, 1010 W Southern Ave, Mesa, AZ

https://www.openstreetmap.org/search?query=Boulders+on+Southern%2C+1010+W+Southern+Ave%2C+Mesa%2C+AZ&zoom=19&minlon=-111.9423606991768&minlat=33.424387769005094&maxlon=-111.93916082382204&maxlat=33.42617415964341#map=19/33.393563/-111.853447

@socallinuxexpo is in a few weeks, before PLUG or Stammtisch in March

@PLUG #Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi and #AZFedi @FLOSS_Stammtisch

Cosmography alert 🚨

Tango of Titans: Centaurus A and M83 as a Local Group Analog

by David Benisty, Noam Libeskind, and Dmitry Makarov

https://arxiv.org/abs/2602.11268

#Cosmography #Cosmology #galaxies #astronomy #astrophysics #astrodon #science #news #LocalGroup

Cosmography alert 🚨

Tango of Titans: Centaurus A and M83 as a Local Group Analog

by David Benisty, Noam Libeskind, and Dmitry Makarov

https://arxiv.org/abs/2602.11268

#Cosmography #Cosmology #galaxies #astronomy #astrophysics #astrodon #science #news #LocalGroup

Cosmography alert 🚨

Tango of Titans: Centaurus A and M83 as a Local Group Analog

by David Benisty, Noam Libeskind, and Dmitry Makarov

https://arxiv.org/abs/2602.11268

#Cosmography #Cosmology #galaxies #astronomy #astrophysics #astrodon #science #news #LocalGroup

Cosmography alert 🚨

Tango of Titans: Centaurus A and M83 as a Local Group Analog

by David Benisty, Noam Libeskind, and Dmitry Makarov

https://arxiv.org/abs/2602.11268

#Cosmography #Cosmology #galaxies #astronomy #astrophysics #astrodon #science #news #LocalGroup

Cosmography alert 🚨

Tango of Titans: Centaurus A and M83 as a Local Group Analog

by David Benisty, Noam Libeskind, and Dmitry Makarov

https://arxiv.org/abs/2602.11268

#Cosmography #Cosmology #galaxies #astronomy #astrophysics #astrodon #science #news #LocalGroup

https://www.europesays.com/ie/334957/ The Milky Way Will Crash into the Andromeda Galaxy in 4.5 Billion Years and Scientists Think They Finally Know Why #AndromedaGalaxy #cosmology #DarkMatter #Éire #HubbleFlow #IE #Ireland #LambdaCDM #LargeScaleStructure #LocalGroup #LocalSheet #MilkyWay #Science #Space #UniverseExpansion

A ‘large-scale sheet’ surrounding the Milky Way explains the motion of nearby galaxies

https://www.rug.nl/fse/news/matter-and-space/a-large-scale-sheet-surrounding-of-the-milky-way-explains-the-motion-of-nearby-galaxies

#Cosmology #LocalGroup #galaxies #MilkyWay #astrodon #astrophysics #science #news

Cosmography alert 🚨

Revisiting the Great Attractor: The Local Group's streamline trajectory, cosmic velocity and dynamical fate

by Richard Stiskalek and co-authors (incl. @AstroMikeHudson)
https://arxiv.org/abs/2601.08524

#Cosmography #GreatAttractor #Cosmology #galaxies #Astronomy #Astrophysics #Astrodon #science #news #LocalGroup #Laniakea #supercluster #LaniakeaSupercluster

Cosmography alert 🚨

Revisiting the Great Attractor: The Local Group's streamline trajectory, cosmic velocity and dynamical fate

by Richard Stiskalek and co-authors (incl. @AstroMikeHudson)
https://arxiv.org/abs/2601.08524

#Cosmography #GreatAttractor #Cosmology #galaxies #Astronomy #Astrophysics #Astrodon #science #news #LocalGroup #Laniakea #supercluster #LaniakeaSupercluster

Cosmography alert 🚨

Revisiting the Great Attractor: The Local Group's streamline trajectory, cosmic velocity and dynamical fate

by Richard Stiskalek and co-authors (incl. @AstroMikeHudson)
https://arxiv.org/abs/2601.08524

#Cosmography #GreatAttractor #Cosmology #galaxies #Astronomy #Astrophysics #Astrodon #science #news #LocalGroup #Laniakea #supercluster #LaniakeaSupercluster

Cosmography alert 🚨

Revisiting the Great Attractor: The Local Group's streamline trajectory, cosmic velocity and dynamical fate

by Richard Stiskalek and co-authors (incl. @AstroMikeHudson)
https://arxiv.org/abs/2601.08524

#Cosmography #GreatAttractor #Cosmology #galaxies #Astronomy #Astrophysics #Astrodon #science #news #LocalGroup #Laniakea #supercluster #LaniakeaSupercluster

Cosmography alert 🚨

Revisiting the Great Attractor: The Local Group's streamline trajectory, cosmic velocity and dynamical fate

by Richard Stiskalek and co-authors (incl. @AstroMikeHudson)
https://arxiv.org/abs/2601.08524

#Cosmography #GreatAttractor #Cosmology #galaxies #Astronomy #Astrophysics #Astrodon #science #news #LocalGroup #Laniakea #supercluster #LaniakeaSupercluster

A Revised Three-dimensional Visualization of the Local Group of Galaxies, by Antonio Ciccolella

☑️ research note of the AAS https://doi.org/10.3847/2515-5172/ae1efc
☑️ ultra-high resolution version https://flic.kr/p/2rD6yGU

#Cosmology #LocalGroup #galaxies #MilkyWay #Andromeda #Astronomy #Astrodon #visualization #science #Cosmography #map #cartography

Weekly Update from the Open Journal of Astrophysics – 27/09/2025

It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five new papers, which brings the number in Volume 8 (2025) up to 141, and the total so far published by OJAp up to 376.

The first paper to report this week is “The Bispectrum of Intrinsic Alignments: Theory Modelling and Forecasts for Stage IV Galaxy Surveys” by Thomas Bakx (Utrecht U., NL), Alexander Eggemeier (U. Bonn, DE), Toshiki Kurita (MPA Garching, DE), Nora Elisa Chisari (Leiden U., NL) and Zvonimir Vlah (Ruđer Bošković Institute, Croatia). This paper was published on Monday 22nd September 2025 in the folder Cosmology and NonGalactic Astrophysics. It studies the bispectrum of intrinsic galaxy alignments, a possible source of systematic errors in extracting cosmological information from the analysis of weak lensing surveys.

The overlay is here:

You can make this larger by clicking on it.  The officially accepted version of this paper can be found on the arXiv here.

The second paper this week, published on Tuesday 23rd September 2025 is “Reanalysis of Stage-III cosmic shear surveys: A comprehensive study of shear diagnostic tests” by Jazmine Jefferson (University of Chicago, USA) and 13 others for the LSST Dark Energy Science Collaboration. It is also in the folder Cosmology and NonGalactic Astrophysics; it describes diagnostic tests on three public shear catalogs (KiDS-1000, Year 3 DES-Y3 s, and Year 3 HSC-Y3); not all the surveys pass all the tests.

The corresponding overlay is here:

You can find the officially accepted version on arXiv here.

The third one this week, published on Wednesday 24th September 2025 in the folder Astrophysics of Galaxies, is “Is feedback-free star formation possible?” by Andrea Ferrara, Daniele Manzoni, and Evangelia Ntormousi (all of the Scuola Normale Superiore, Pisa, Italy). This paper presents an argument that Lyman-alpha radiation pressure strongly limits star formation efficiency, even at solar metallicities, so that a feedback-free star formation phase is not possible without feedback. The overlay is here:

You can find the officially-accepted version on arXiv here.

Next we have “Microphysical Regulation of Non-Ideal MHD in Weakly-Ionized Systems: Does the Hall Effect Matter?” by Philip F. Hopkins (Caltech, USA), Jonathan Squire (U. Otago, New Zeland), Raphael Skalidis (Caltech) and Nadine H. Soliman (Caltech). This was also published on Wednesday 24th September 2025, but in the folder Earth and Planetary Astrophysics. It presents an improved treatment of non-ideal effects in magnetohydrodynamics, particularly the Hall effect, and a discussion of the implications for weakly-ionized astrophysical systems.

The corresponding overlay is here:

You can find the officially accepted version of this one on arXiv here.

The fifth, and last, one for this week is “The Local Volume Database: a library of the observed properties of nearby dwarf galaxies and star clusters” by Andrew B. Pace (University of Virginia, USA). This one was published on Friday 26th September (i.e. yesterday) in the folder Astrophysics of Galaxies. It presents a catalogue of positional, structural, kinematic, chemical, and dynamical parameters for dwarf galaxies and star clusters in the Local Volume. The overlay is here:

You can find the officially-accepted version of this paper on arxiv here.

And that concludes the report for this week. I’ll post another update next Saturday.

#arXiv240506026v2 #arXiv241107424v2 #arXiv250410009v2 #arXiv250503964v3 #arXiv250902566v2 #AstrophysicsOfGalaxies #bispectrum #cosmicShear #CosmologyAndNonGalacticAstrophysics #DarkEnergySurvey #DiamondOpenAccessPublishing #dwarfGalaxies #EarthAndPlanetaryAstrophysics #feedback #HallEffect #intrinsicAlignments #KIDS #LocalGroup #magnetohydrodynamics #OpenAccessPublishing #StarClusters #starFormation #weakGravitationalLensing

Weekly Update from the Open Journal of Astrophysics – 27/09/2025

It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five new papers, which brings the number in Volume 8 (2025) up to 141, and the total so far published by OJAp up to 376.

The first paper to report this week is “The Bispectrum of Intrinsic Alignments: Theory Modelling and Forecasts for Stage IV Galaxy Surveys” by Thomas Bakx (Utrecht U., NL), Alexander Eggemeier (U. Bonn, DE), Toshiki Kurita (MPA Garching, DE), Nora Elisa Chisari (Leiden U., NL) and Zvonimir Vlah (Ruđer Bošković Institute, Croatia). This paper was published on Monday 22nd September 2025 in the folder Cosmology and NonGalactic Astrophysics. It studies the bispectrum of intrinsic galaxy alignments, a possible source of systematic errors in extracting cosmological information from the analysis of weak lensing surveys.

The overlay is here:

You can make this larger by clicking on it.  The officially accepted version of this paper can be found on the arXiv here.

The second paper this week, published on Tuesday 23rd September 2025 is “Reanalysis of Stage-III cosmic shear surveys: A comprehensive study of shear diagnostic tests” by Jazmine Jefferson (University of Chicago, USA) and 13 others for the LSST Dark Energy Science Collaboration. It is also in the folder Cosmology and NonGalactic Astrophysics; it describes diagnostic tests on three public shear catalogs (KiDS-1000, Year 3 DES-Y3 s, and Year 3 HSC-Y3); not all the surveys pass all the tests.

The corresponding overlay is here:

You can find the officially accepted version on arXiv here.

The third one this week, published on Wednesday 24th September 2025 in the folder Astrophysics of Galaxies, is “Is feedback-free star formation possible?” by Andrea Ferrara, Daniele Manzoni, and Evangelia Ntormousi (all of the Scuola Normale Superiore, Pisa, Italy). This paper presents an argument that Lyman-alpha radiation pressure strongly limits star formation efficiency, even at solar metallicities, so that a feedback-free star formation phase is not possible without feedback. The overlay is here:

You can find the officially-accepted version on arXiv here.

Next we have “Microphysical Regulation of Non-Ideal MHD in Weakly-Ionized Systems: Does the Hall Effect Matter?” by Philip F. Hopkins (Caltech, USA), Jonathan Squire (U. Otago, New Zeland), Raphael Skalidis (Caltech) and Nadine H. Soliman (Caltech). This was also published on Wednesday 24th September 2025, but in the folder Earth and Planetary Astrophysics. It presents an improved treatment of non-ideal effects in magnetohydrodynamics, particularly the Hall effect, and a discussion of the implications for weakly-ionized astrophysical systems.

The corresponding overlay is here:

You can find the officially accepted version of this one on arXiv here.

The fifth, and last, one for this week is “The Local Volume Database: a library of the observed properties of nearby dwarf galaxies and star clusters” by Andrew B. Pace (University of Virginia, USA). This one was published on Friday 26th September (i.e. yesterday) in the folder Astrophysics of Galaxies. It presents a catalogue of positional, structural, kinematic, chemical, and dynamical parameters for dwarf galaxies and star clusters in the Local Volume. The overlay is here:

You can find the officially-accepted version of this paper on arxiv here.

And that concludes the report for this week. I’ll post another update next Saturday.

#arXiv240506026v2 #arXiv241107424v2 #arXiv250410009v2 #arXiv250503964v3 #arXiv250902566v2 #AstrophysicsOfGalaxies #bispectrum #cosmicShear #CosmologyAndNonGalacticAstrophysics #DarkEnergySurvey #DiamondOpenAccessPublishing #dwarfGalaxies #EarthAndPlanetaryAstrophysics #feedback #HallEffect #intrinsicAlignments #KIDS #LocalGroup #magnetohydrodynamics #OpenAccessPublishing #StarClusters #starFormation #weakGravitationalLensing

Headed to FLOSS Stamtisch, look for the penguins

Starts at 19:00 AZ time

https://floss.social/@FLOSS_Stammtisch/115211088057889912

#Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi #ActivityInThePub

Headed to FLOSS Stamtisch, look for the penguins

Starts at 19:00 AZ time

https://floss.social/@FLOSS_Stammtisch/115211088057889912

#Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi #ActivityInThePub

Headed to FLOSS Stamtisch, look for the penguins

Starts at 19:00 AZ time

https://floss.social/@FLOSS_Stammtisch/115211088057889912

#Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi #ActivityInThePub

Headed to FLOSS Stamtisch, look for the penguins

Starts at 19:00 AZ time

https://floss.social/@FLOSS_Stammtisch/115211088057889912

#Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi #ActivityInThePub

Headed to FLOSS Stamtisch, look for the penguins

Starts at 19:00 AZ time

https://floss.social/@FLOSS_Stammtisch/115211088057889912

#Stammtisch #LocalGroup #Arizona #PLUG #FLOSS_Stammtisch #Phoenix #Tempe #Mesa #PhxFedi #AZFedi #ActivityInThePub

Proxmox at PLUG in Phoenix at 19:00 tonight

https://floss.social/@FLOX_advocate/115184272097808618

FLOSS Stammtisch is this coming Tuesday in Mesa

#proxmox #LocalGroup #Phoenix #Arizona #FLOSSgroup #LUG #PLUG #sysadm #Stammtisch #FLOSS_Stammtisch @PLUG #Phoenix #Arizona #Mesa