#binary-stars — Public Fediverse posts

HD 81809B is a unusual star which consists high abundance of lithium, a very volatile element, and it is easily destroyed in stars.

This is the first binary system to be found with this chemical difference, which is very unusual. Binary systems are 'like siblings' in that they are born from the same molecular cloud, meaning they have the same chemical composition. As with siblings, some differences in element abundances can appear due to physical processes. However, these differences will be much smaller than those of HD 81809. One is that the stars are not 'real siblings' and were born from different molecular clouds containing different elements. The other explanation is that star HD 81809B suffered a more drastic event during its evolution, such as ingesting a planet, which could have changed its chemical composition.

How is this star devouring plants then? Moedas suggests it could be the result of gravitational interactions between the binary stars disrupting the orbit that led to their deaths. Of course, it's almost always gravitational pull.

We can only estimate the amount of planetary material required, which we find to be 75 times the mass of Earth. It is possible that the star ingested three planets, each 25 times more massive than Earth. The event happened a few million years ago, and there are physical processes in the star that will 'clean up' the evidence and try to make the star's chemical abundance similar to that before the event.

https://www.space.com/astronomy/stars/one-of-these-twin-stars-has-likely-been-snacking-on-exoplanets

#Lithium #PlanetEater #HD81809B #BinaryStars #BinarySystem #Exoplanets #Science #Space

Einstein’s Relativity May Explain the Scarcity of Planets Orbiting Binary Star Systems

📰 Original title: Why two-sun planets keep disappearing scientists blame Einstein

🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅

View full AI summary: https://killbait.com/en/einsteins-relativity-may-explain-the-scarcity-of-planets-orbiting-binary-star-systems/?redirpost=b7abd2b2-f02e-475b-aba9-61edecc9ca39

#astronomy #exoplanets #relativity #binarystars

Einstein’s Relativity May Explain the Scarcity of Planets Orbiting Binary Star Systems

📰 Original title: Why two-sun planets keep disappearing scientists blame Einstein

🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅

View full AI summary: https://killbait.com/en/einsteins-relativity-may-explain-the-scarcity-of-planets-orbiting-binary-star-systems/?redirpost=b7abd2b2-f02e-475b-aba9-61edecc9ca39

#astronomy #exoplanets #relativity #binarystars

Weekly Update from the Open Journal of Astrophysics – 18/04/2026

It is Saturday morning, and therefore time for yet another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 82 and the total so far published by OJAp up to 530.

I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter (which nobody should be using); these announcements also show the DOI for each paper.

The first paper to report this week is “Beyond Spherical geometry: Unraveling complex features of objects orbiting around stars from its transit light curve using deep learning” by Ushasi Bhowmick & Shivam Kumaran (Indian Space Research Institute, Ahmedabad, India). This study uses deep neural networks to predict the shape of objects orbiting stars based on their transit light curves, demonstrating the potential to extract geometric information from these systems. It was published on Monday 13th April in the folder Earth and Planetary Astrophysics and the overlay can be seen here:

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116395992732332356

The second paper for this week, also published on Monday 13th April Apil in the folder but in the folder Astrophysics of Galaxies, is “statmorph-lsst: Quantifying and correcting morphological biases in galaxy surveys” by Elizaveta Sazonova (U. Waterloo, Canada) and an international cast of 18 others. This paper presents an investigation of potential biases in quantitative morphology metrics used in galaxy evolution studies, proposing two new measurements to resolve biases, and provides a related Python package (statmorph-lsst), which can be found here on github.

The overlay for this one is here:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116396069424189312

Next one up, the third paper of the week, one of four published on Friday 17th April, is “Disentangling the galactic and intergalactic components in 313 observed Lyman-alpha line profiles between redshift 0 and 5” by Siddhartha Gurung-López (Universitat de València, Spain) and 7 others based in Spain and Germany. Published in the folder Astrophysics of Galaxies, this paper uses the zELDA package to analyze Lyman-alpha photons from star-forming galaxies, revealing IGM effects dominate Lyman-alpha observability at high redshifts, while galactic outflows become more important at lower z.

The overlay for this one is here:

The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116418831864134501

The fourth paper this week, also published on Friday 17th April is “Using Symbolic Regression to Emulate the Radial Fourier Transform of the Sérsic Profile for Fast, Accurate and Differentiable Galaxy Profile Fitting” by Tim B. Miller (Northwestern University, USA) and Imad Pasha (Yale University, USA). This one is published in the folder Instrumentation and Methods for Astrophysics: it develops an emulator for galaxy profile fitting in Fourier space, improving speed by 2.5 times with minimal accuracy loss, aiding in managing increasing data flow.

The overlay is here:

The finally accepted version of this paper can be found here and the Mastodon announcement follows:

https://fediscience.org/@OJ_Astro/116418855010158656

The fifth paper for this week is “The THESAN project: Lyman-alpha emitters as probes of ionized bubble sizes” by Meredith Neyer (MIT, USA) and 6 others based in the USA, Colombia, Canada, Japan and UK. The study uses THESAN simulations to explore how Lyman-alpha emitters (LAEs) trace ionized bubble sizes during the Epoch of Reionization, providing a framework for interpreting LAE surveys. This was published on Friday 17th April in the folder Astrophysics of Galaxies.

The overlay for this one is here:

You can find the authorized version of this paper on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116418887225003954

The sixth and final paper for this week is “Closed-Form Statistical Relations Between Projected Separation, Semimajor Axis, Companion Mass, and Host Acceleration” by Timothy D Brandt (Space Telescope Science Institute, USA). This was published on Friday 17th April in the folder Solar and Stellar Astrophysics. In this paper the author derives statistical relationships between radial velocity, a companion’s mass, and projected separation, useful for calculations requiring derivatives. The results are verified with empirical comparisons to existing literature.

The overlay for this one is here:

You can find the officially-accepted version on arXiv here and the Mastodon announcement here:

https://fediscience.org/@OJ_Astro/116418938017199814

And that concludes this week’s update. I’ll do another one at the end of next week.

P.S. Just a reminder, for those of you into LinkedIn, that we now have a page there.

Weekly Update from the Open Journal of Astrophysics – 18/04/2026

It is Saturday morning, and therefore time for yet another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 82 and the total so far published by OJAp up to 530.

I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter (which nobody should be using); these announcements also show the DOI for each paper.

The first paper to report this week is “Beyond Spherical geometry: Unraveling complex features of objects orbiting around stars from its transit light curve using deep learning” by Ushasi Bhowmick & Shivam Kumaran (Indian Space Research Institute, Ahmedabad, India). This study uses deep neural networks to predict the shape of objects orbiting stars based on their transit light curves, demonstrating the potential to extract geometric information from these systems. It was published on Monday 13th April in the folder Earth and Planetary Astrophysics and the overlay can be seen here:

You can find the officially accepted version on arXiv here and the announcement on Fediverse here:

https://fediscience.org/@OJ_Astro/116395992732332356

The second paper for this week, also published on Monday 13th April Apil in the folder but in the folder Astrophysics of Galaxies, is “statmorph-lsst: Quantifying and correcting morphological biases in galaxy surveys” by Elizaveta Sazonova (U. Waterloo, Canada) and an international cast of 18 others. This paper presents an investigation of potential biases in quantitative morphology metrics used in galaxy evolution studies, proposing two new measurements to resolve biases, and provides a related Python package (statmorph-lsst), which can be found here on github.

The overlay for this one is here:

The official version of the paper can be found on arXiv here and the Fediverse announcement here:

https://fediscience.org/@OJ_Astro/116396069424189312

Next one up, the third paper of the week, one of four published on Friday 17th April, is “Disentangling the galactic and intergalactic components in 313 observed Lyman-alpha line profiles between redshift 0 and 5” by Siddhartha Gurung-López (Universitat de València, Spain) and 7 others based in Spain and Germany. Published in the folder Astrophysics of Galaxies, this paper uses the zELDA package to analyze Lyman-alpha photons from star-forming galaxies, revealing IGM effects dominate Lyman-alpha observability at high redshifts, while galactic outflows become more important at lower z.

The overlay for this one is here:

The final, accepted version can be found on arXiv here and the Mastodon announcement is here:

https://fediscience.org/@OJ_Astro/116418831864134501

The fourth paper this week, also published on Friday 17th April is “Using Symbolic Regression to Emulate the Radial Fourier Transform of the Sérsic Profile for Fast, Accurate and Differentiable Galaxy Profile Fitting” by Tim B. Miller (Northwestern University, USA) and Imad Pasha (Yale University, USA). This one is published in the folder Instrumentation and Methods for Astrophysics: it develops an emulator for galaxy profile fitting in Fourier space, improving speed by 2.5 times with minimal accuracy loss, aiding in managing increasing data flow.

The overlay is here:

The finally accepted version of this paper can be found here and the Mastodon announcement follows:

https://fediscience.org/@OJ_Astro/116418855010158656

The fifth paper for this week is “The THESAN project: Lyman-alpha emitters as probes of ionized bubble sizes” by Meredith Neyer (MIT, USA) and 6 others based in the USA, Colombia, Canada, Japan and UK. The study uses THESAN simulations to explore how Lyman-alpha emitters (LAEs) trace ionized bubble sizes during the Epoch of Reionization, providing a framework for interpreting LAE surveys. This was published on Friday 17th April in the folder Astrophysics of Galaxies.

The overlay for this one is here:

You can find the authorized version of this paper on arXiv here and the Fediverse announcement is here:

https://fediscience.org/@OJ_Astro/116418887225003954

The sixth and final paper for this week is “Closed-Form Statistical Relations Between Projected Separation, Semimajor Axis, Companion Mass, and Host Acceleration” by Timothy D Brandt (Space Telescope Science Institute, USA). This was published on Friday 17th April in the folder Solar and Stellar Astrophysics. In this paper the author derives statistical relationships between radial velocity, a companion’s mass, and projected separation, useful for calculations requiring derivatives. The results are verified with empirical comparisons to existing literature.

The overlay for this one is here:

You can find the officially-accepted version on arXiv here and the Mastodon announcement here:

https://fediscience.org/@OJ_Astro/116418938017199814

And that concludes this week’s update. I’ll do another one at the end of next week.

P.S. Just a reminder, for those of you into LinkedIn, that we now have a page there.

🎩✨ Oh, the riveting world of boolean options! It's like discovering the vast universe inside a binary star 🌌—spoiler alert: it's just two. Meanwhile, the article meanders like a lost tourist in a tech museum, leaving you #pondering if it too is merely an "experimental" concept. 🤔
https://herecomesthemoon.net/2025/11/how-many-options-fit-into-a-boolean/ #booleanoptions #techmuseum #binarystars #experimentalconcept #HackerNews #ngated

🎩✨ Oh, the riveting world of boolean options! It's like discovering the vast universe inside a binary star 🌌—spoiler alert: it's just two. Meanwhile, the article meanders like a lost tourist in a tech museum, leaving you #pondering if it too is merely an "experimental" concept. 🤔
https://herecomesthemoon.net/2025/11/how-many-options-fit-into-a-boolean/ #booleanoptions #techmuseum #binarystars #experimentalconcept #HackerNews #ngated

NASA Hubble Helps Detect ‘Wake’ of Betelgeuse’s Elusive Companion Star https://science.nasa.gov/missions/hubble/nasa-hubble-helps-detect-wake-of-betelgeuses-elusive-companion-star/ #NASA #Astrophysics #AstrophysicsDivision #BinaryStars #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Stars #TheUniverse

NASA Hubble Helps Detect ‘Wake’ of Betelgeuse’s Elusive Companion Star https://science.nasa.gov/missions/hubble/nasa-hubble-helps-detect-wake-of-betelgeuses-elusive-companion-star/ #NASA #Astrophysics #AstrophysicsDivision #BinaryStars #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Stars #TheUniverse

JWST captured a chaotic triple-star system with two Wolf-Rayet stars.

#Astronomy #BinaryStars #WolfRayet

https://youtube.com/shorts/XqmEEAu5x6g

JWST captured a chaotic triple-star system with two Wolf-Rayet stars.

#Astronomy #BinaryStars #WolfRayet

https://youtube.com/shorts/XqmEEAu5x6g

It might look a bit...off, at first glance, but hey, there are plenty of bright-white nigh-contact binary stars out there, and Maltese crosses have been proposed as a real shape for these crafts...

My own spacey piece, "Solar sailing round twin suns".

#art #digitalart #digitalpainting #painting #spaceflight #scifiart #scifi #sciencefiction #sciencefictionart #solarsail #spacecraft #stars #binarystars

It might look a bit...off, at first glance, but hey, there are plenty of bright-white nigh-contact binary stars out there, and Maltese crosses have been proposed as a real shape for these crafts...

My own spacey piece, "Solar sailing round twin suns".

#art #digitalart #digitalpainting #painting #spaceflight #scifiart #scifi #sciencefiction #sciencefictionart #solarsail #spacecraft #stars #binarystars

1/ 🔭 Massereiche Sterne haben oft einen Partner – sogar im jungen #Universum

Eine neue Studie unter Leitung von Hugues Sana (KU Leuven), mit Beteiligung von Jaime Villaseñor (#MPIA), zeigt: Die meisten massereichen Sterne in der Kleinen Magellanschen Wolke #SMC besitzen einen engen Begleitstern.

#Astronomy #MassiveStars #BinaryStars #NatureAstronomy #MPIA

🔗 Mehr dazu in der Pressemitteilung der KU Leuven
https://fys.kuleuven.be/ster/news/2025/massive-star-in-metal-poor-environment-often-have-close-partner

1/ 🔭 Massereiche Sterne haben oft einen Partner – sogar im jungen #Universum

Eine neue Studie unter Leitung von Hugues Sana (KU Leuven), mit Beteiligung von Jaime Villaseñor (#MPIA), zeigt: Die meisten massereichen Sterne in der Kleinen Magellanschen Wolke #SMC besitzen einen engen Begleitstern.

#Astronomy #MassiveStars #BinaryStars #NatureAstronomy #MPIA

🔗 Mehr dazu in der Pressemitteilung der KU Leuven
https://fys.kuleuven.be/ster/news/2025/massive-star-in-metal-poor-environment-often-have-close-partner

A high fraction of close massive #BinaryStars at low metallicity: https://www.astronomie.nl/upload/files/2025/Sana-Bloem-Obinaries-2025.pdf -> Massive stars in metal-poor environment often have close partner: https://www.astronomie.nl/nieuws/en/massive-star-in-metal-poor-environment-often-have-close-partner-4639

A high fraction of close massive #BinaryStars at low metallicity: https://www.astronomie.nl/upload/files/2025/Sana-Bloem-Obinaries-2025.pdf -> Massive stars in metal-poor environment often have close partner: https://www.astronomie.nl/nieuws/en/massive-star-in-metal-poor-environment-often-have-close-partner-4639

NASA’s Webb Finds New Evidence for Planet Around Closest Solar Twin https://science.nasa.gov/missions/webb/nasas-webb-finds-new-evidence-for-planet-around-closest-solar-twin/ #NASA #Astrophysics #BinaryStars #Exoplanets #GasGiantExoplanets #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #ScienceResearch #Stars #StudyingExoplanets #TheUniverse

NASA’s Webb Finds New Evidence for Planet Around Closest Solar Twin https://science.nasa.gov/missions/webb/nasas-webb-finds-new-evidence-for-planet-around-closest-solar-twin/ #NASA #Astrophysics #BinaryStars #Exoplanets #GasGiantExoplanets #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #ScienceResearch #Stars #StudyingExoplanets #TheUniverse

Drawn to bright stars and gravitational acceleration like moths to a flame (and no, this isn't some weird Nazi victory/"Deus Vult!" timeline or whatever, this is a real shape that's been proposed for these craft!...). My artwork, "Solar sailing round twin suns".

#art #digitalart #digitalpainting #painting #stars #binarystars #twinsuns #scifiart #spaceart #scifi #sciencefiction #spaceflight #sciencefictionart

Drawn to bright stars and gravitational acceleration like moths to a flame (and no, this isn't some weird Nazi victory/"Deus Vult!" timeline or whatever, this is a real shape that's been proposed for these craft!...). My artwork, "Solar sailing round twin suns".

#art #digitalart #digitalpainting #painting #stars #binarystars #twinsuns #scifiart #spaceart #scifi #sciencefiction #spaceflight #sciencefictionart

NASA Citizen Scientists Find New Eclipsing Binary Stars https://science.nasa.gov/get-involved/citizen-science/nasa-citizen-scientists-find-new-eclipsing-binary-stars/ #NASA #Astrophysics #AstrophysicsDivision #BinaryStars #CitizenScience #TESSTransitingExoplanetSurveySatellite

NASA Citizen Scientists Find New Eclipsing Binary Stars https://science.nasa.gov/get-involved/citizen-science/nasa-citizen-scientists-find-new-eclipsing-binary-stars/ #NASA #Astrophysics #AstrophysicsDivision #BinaryStars #CitizenScience #TESSTransitingExoplanetSurveySatellite

Binary Star System
Most stars in the universe come in pairs. In a binary system, two stars orbit a common center of mass. Some, like V664 Cas, evolve into spectacular sights. This red giant and white dwarf orbit every 0.58 days, creating the planetary nebula HFG1 and a glowing arc-shaped shockwave.
📷 Julien Cadena & Mickael Coulon
🔗 stellarsnap.space
#BinaryStars #PlanetaryNebula #HFG1 #Astronomy #StellarSnap #Space

Discovery Alert: A Possible Perpendicular Planet https://science.nasa.gov/universe/exoplanets/discovery-alert-a-possible-perpendicular-planet/ #NASA #Astrophysics #BinaryStars #BrownDwarfs #Exoplanets #ScienceResearch #TheUniverse

Discovery Alert: A Possible Perpendicular Planet https://science.nasa.gov/universe/exoplanets/discovery-alert-a-possible-perpendicular-planet/ #NASA #Astrophysics #BinaryStars #BrownDwarfs #Exoplanets #ScienceResearch #TheUniverse

With NASA’s Webb, Dying Star’s Energetic Display Comes Into Full Focus https://science.nasa.gov/missions/webb/with-nasas-webb-dying-stars-energetic-display-comes-into-full-focus/ #NASA #Astrophysics #BinaryStars #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #Nebulae #PlanetaryNebulae #ScienceResearch #Stars #TheUniverse #WhiteDwarfs

With NASA’s Webb, Dying Star’s Energetic Display Comes Into Full Focus https://science.nasa.gov/missions/webb/with-nasas-webb-dying-stars-energetic-display-comes-into-full-focus/ #NASA #Astrophysics #BinaryStars #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #Nebulae #PlanetaryNebulae #ScienceResearch #Stars #TheUniverse #WhiteDwarfs

What mysteries unfold when two suns dance in the cosmos? Dive into the enchanting world of binary stars and explore their celestial waltz. Link: YouTube #BinaryStars #CosmicDance #StellarMysteries #TwinSuns #Astronomy

Webb Watches Carbon-Rich Dust Shells Form, Expand in Star System https://science.nasa.gov/missions/webb/webb-watches-carbon-rich-dust-shells-form-expand-in-star-system/ #NASA #Astrophysics #BinaryStars #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #Nebulae #ScienceResearch #Stars #TheMilkyWay #TheUniverse

Webb Watches Carbon-Rich Dust Shells Form, Expand in Star System https://science.nasa.gov/missions/webb/webb-watches-carbon-rich-dust-shells-form-expand-in-star-system/ #NASA #Astrophysics #BinaryStars #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #Nebulae #ScienceResearch #Stars #TheMilkyWay #TheUniverse

R Aquarii (WFC3 Image) ✨

#BinaryStars #MultipleStarSystems #Nebulas #Novae #Stars

▶️ 1 new picture from Hubble (NASA) https://commons.wikimedia.org/wiki/File:R_Aquarii_%28WFC3_Image%29_%282024-021%29.png

R Aquarii (WFC3 Image) ✨

#BinaryStars #MultipleStarSystems #Nebulas #Novae #Stars

▶️ 1 new picture from Hubble (NASA) https://commons.wikimedia.org/wiki/File:R_Aquarii_%28WFC3_Image%29_%282024-021%29.png

NASA’s Hubble Sees a Stellar Volcano https://science.nasa.gov/missions/hubble/nasas-hubble-sees-a-stellar-volcano/ #NASA #Astrophysics #AstrophysicsDivision #BinaryStars #GoddardSpaceFlightCenter #HubbleSpaceTelescope #ScienceMissionDirectorate #Stars #TheUniverse

NASA’s Hubble Sees a Stellar Volcano https://science.nasa.gov/missions/hubble/nasas-hubble-sees-a-stellar-volcano/ #NASA #Astrophysics #AstrophysicsDivision #BinaryStars #GoddardSpaceFlightCenter #HubbleSpaceTelescope #ScienceMissionDirectorate #Stars #TheUniverse

NASA’s TESS Spots Record-Breaking Stellar Triplets https://www.nasa.gov/missions/tess/nasas-tess-spots-record-breaking-stellar-triplets/ #NASA #TESSTransitingExoplanetSurveySatellite #Astrophysics #BinaryStars #GalaxiesStarsBlackHoles #GoddardSpaceFlightCenter #NancyGraceRomanSpaceTelescope #ScienceResearch #Stars #TheUniverse

NASA’s TESS Spots Record-Breaking Stellar Triplets https://www.nasa.gov/missions/tess/nasas-tess-spots-record-breaking-stellar-triplets/ #NASA #TESSTransitingExoplanetSurveySatellite #Astrophysics #BinaryStars #GalaxiesStarsBlackHoles #GoddardSpaceFlightCenter #NancyGraceRomanSpaceTelescope #ScienceResearch #Stars #TheUniverse

Discovery Alert: Mini-Neptune in Double Star System is a Planetary Puzzle https://science.nasa.gov/universe/exoplanets/discovery-alert-mini-neptune-in-double-star-system-is-a-planetary-puzzle/ #NASA #BinaryStars #ExoplanetScience #Exoplanets #NeptuneLikeExoplanets #TESSTransitingExoplanetSurveySatellite

Discovery Alert: Mini-Neptune in Double Star System is a Planetary Puzzle https://science.nasa.gov/universe/exoplanets/discovery-alert-mini-neptune-in-double-star-system-is-a-planetary-puzzle/ #NASA #BinaryStars #ExoplanetScience #Exoplanets #NeptuneLikeExoplanets #TESSTransitingExoplanetSurveySatellite

Hubble Brown Dwarf Survey Illustration ✨

#BinaryStars #BrownDwarfs #Stars

▶️ 1 new picture from Hubble (NASA) https://commons.wikimedia.org/wiki/File:Hubble_Brown_Dwarf_Survey_Illustration_%282024-005%29.tiff

Hubble Brown Dwarf Survey Illustration ✨

#BinaryStars #BrownDwarfs #Stars

▶️ 1 new picture from Hubble (NASA) https://commons.wikimedia.org/wiki/File:Hubble_Brown_Dwarf_Survey_Illustration_%282024-005%29.tiff

New map of half the known universe shines with cosmic energy

More than one million sources of energy are featured in the first X-ray images from the eROSITA space telescope.

https://www.popsci.com/science/map-half-of-the-universe-x-ray/

#eROSITA #popsci #xray #sky #survey #highenergy #astrophysics #astronomy #astrodon #SpectrumRG #spacecraft #space #science #research #galaxy #galaxies #AGN #blackholes #stars #MilkyWay #Galaxy #binarystars #pulsar #pulsars #supernovae #cosmicweb #filaments #news #popularscience

New map of half the known universe shines with cosmic energy

More than one million sources of energy are featured in the first X-ray images from the eROSITA space telescope.

https://www.popsci.com/science/map-half-of-the-universe-x-ray/

#eROSITA #popsci #xray #sky #survey #highenergy #astrophysics #astronomy #astrodon #SpectrumRG #spacecraft #space #science #research #galaxy #galaxies #AGN #blackholes #stars #MilkyWay #Galaxy #binarystars #pulsar #pulsars #supernovae #cosmicweb #filaments #news #popularscience

A fascinating and unlikely pair, perhaps doomed in the future.
Would love to watch a white dwarf devour a brown dwarf, wonder how many other stellar remnants have eaten their lesser twin and would we know?

https://www.astronomy.com/science/this-brown-dwarf-used-to-be-inside-its-white-dwarf-companion/

#WhiteDwarf #BrownDwarf #Astronomy #BinaryStars

A fascinating and unlikely pair, perhaps doomed in the future.
Would love to watch a white dwarf devour a brown dwarf, wonder how many other stellar remnants have eaten their lesser twin and would we know?

https://www.astronomy.com/science/this-brown-dwarf-used-to-be-inside-its-white-dwarf-companion/

#WhiteDwarf #BrownDwarf #Astronomy #BinaryStars

First eROSITA sky-survey data release - the largest ever catalogue of high-energy cosmic sources

https://mpe.mpg.de/7989698/news20240131

Check out this animation: panning through the eROSITA sky and pinpointing some major actors of our Galactic and Extragalactic Cosmography ⤵️⤵️⤵️

#eROSITA #xray #sky #survey #highenergy #astrophysics #astronomy #astrodon #SpectrumRG #spacecraft #space #science #research #galaxy #galaxies #AGN #blackholes #stars #MilkyWay #Galaxy #binarystars #pulsar #pulsars #supernovae #video

First eROSITA sky-survey data release - the largest ever catalogue of high-energy cosmic sources

https://mpe.mpg.de/7989698/news20240131

Check out this animation: panning through the eROSITA sky and pinpointing some major actors of our Galactic and Extragalactic Cosmography ⤵️⤵️⤵️

#eROSITA #xray #sky #survey #highenergy #astrophysics #astronomy #astrodon #SpectrumRG #spacecraft #space #science #research #galaxy #galaxies #AGN #blackholes #stars #MilkyWay #Galaxy #binarystars #pulsar #pulsars #supernovae #video

During #eRASS1 from 12/19 to 06/20, #eROSITA found more than 700,000 supermassive black holes in distant galaxies (active galactic nuclei), 180,000 #Xray emitting stars in our #Milkyway, 12,000 clusters of galaxies, and other exotic classes of sources: #Xray emitting #BinaryStars, #SupernovaRemnants, #Pulsars. The ~50 paper highlighting 1000 superclusters of galaxies, a giant filament of pristine warm-hot gas extending between two galaxies and two new Quasi-Periodically Erupting QPE #blackholes

During #eRASS1 from 12/19 to 06/20, #eROSITA found more than 700,000 supermassive black holes in distant galaxies (active galactic nuclei), 180,000 #Xray emitting stars in our #Milkyway, 12,000 clusters of galaxies, and other exotic classes of sources: #Xray emitting #BinaryStars, #SupernovaRemnants, #Pulsars. The ~50 paper highlighting 1000 superclusters of galaxies, a giant filament of pristine warm-hot gas extending between two galaxies and two new Quasi-Periodically Erupting QPE #blackholes

Less than 24 hours until #erositadr1, the first data release of the #eROSITA #xray #spacetelescope!
With ~ 900.000 distinct sources, the first #AllSkySurvey #eRASS1 has yielded the largest X-ray catalogue ever! Get ready for supermassive #blackholes, X-ray emitting stars in our #Milkyway, clusters of galaxies, X-ray emitting #BinaryStars, #SupernovaRemnants, #Pulsars, and other objects - And about 50 new publications from the German eROSITA consortium!

⚠ Tomorrow, January 31, 10:00 CET!

Less than 24 hours until #erositadr1, the first data release of the #eROSITA #xray #spacetelescope!
With ~ 900.000 distinct sources, the first #AllSkySurvey #eRASS1 has yielded the largest X-ray catalogue ever! Get ready for supermassive #blackholes, X-ray emitting stars in our #Milkyway, clusters of galaxies, X-ray emitting #BinaryStars, #SupernovaRemnants, #Pulsars, and other objects - And about 50 new publications from the German eROSITA consortium!

⚠ Tomorrow, January 31, 10:00 CET!