#sn2023ixf — Public Fediverse posts

Astrophoto: Pinwheel Galaxy – Messier 101 – 06/23 https://astrocamp.eu/en/astrophoto-pinwheel-galaxy-messier-101-06-23/ My 2023 photo of the 21.000.000 LJ away Pinwheel Galaxy. Significantly sharper structures and rounder stars. These are the improvements of the new workflow. … #M101 #Messier101 #PinwheelGalaxy #SN2023ixf #clearskies

#SN2023ixf in Messier 101 - the twilight years of the progenitor as seen by Pan-STARRS: https://arxiv.org/abs/2312.04426 -> "We present an analysis of the long-baseline pre-explosion photometric data in g, w, r, i, z and y filters from Pan-STARRS as part of the Young Supernova Experiment, spanning ∼5,000 days. We find no significant detections in the Pan-STARRS pre-explosion light curve. [...] We find no evidence of eruptive pre-supernova activity to a limiting absolute magnitude of −7."

Observations of the #supernova #SN2023ixf "were the earliest-ever measurements of polarized light from a supernova, showing more clearly the evolving shape of a stellar explosion".

https://news.berkeley.edu/2023/08/29/releases-20230828-6895045

#Astronomy

Early-time Spectropolarimetry of the Asymmetric Type II Supernova #SN2023ixf / SN 2023ixf in Messier 10 - Photo-ionization of Dense, Close-in Circumstellar Material in a Nearby Type II Supernova: https://arxiv.org/abs/2307.01268 / https://arxiv.org/abs/2306.04721 -> Closest #supernova in a decade reveals how exploding #stars evolve: https://news.berkeley.edu/2023/08/29/releases-20230828-6895045

Looked at the #SN2023ixf
AAVSO light curve for the first time in a while today since it’s been cloudy here lately. Looks like the linear decrease phase ended about two weeks ago after ~70 days since maximum light. Starting to plateau now at ~82 days, expected for a type IIL event

#astronomy #supernova

The closest cosmic explosion to Earth in the last 10 years became a record breaker for the Search for Extraterrestrial Intelligence Institute (SETI).

The supernova, designated (SN) 2023ixf, was first spotted on May 19, 2023, by Japanese amateur astronomer Koichi Itagaki. Just an hour after this manifestation, amateur astronomers taking part in SETI and Unistellar's Cosmic Cataclysms program were on the case.

https://www.space.com/supernova-closest-earth-ten-years-citizen-science

#space #science #sn2023ixf

PRESS RELEASE: https://www.seti.org/press-release/record-breaking-team-citizen-scientists-contribute-data-pinwheel-galaxy-supernova
Amateur astronomers participating in the SETI Institute’s and Unistellar’s Cosmic Cataclysms program conducted a groundbreaking observation of supernova (SN) 2023ixf. The observations, which began just one hour after the supernova’s first known appearance, have generated the longest continuous light curve of this supernova gathered by citizen scientists that has been published to date.

#sn2023ixf #supernova #science #space #scicomm #astronomy

A comprehensive optical search for pre-explosion outbursts from the quiescent progenitor of #SN2023ixf: https://arxiv.org/abs/2307.02539 -> "we find that the probability of a significant outburst within five years of explosion is low [...] Taken together, the results of SN~2023ixf and SN~2020tlf indicate that there may be more than one physical mechanism behind the dense CSM inferred around some normal type II SNe."

Some papers about #SN2023ixf in Messier 101: https://arxiv.org/abs/2306.06162 = Constraints on pre-SN outbursts from the progenitor of SN 2023ixf using the Large Binocular Telescope, https://arxiv.org/abs/2306.04721 = SN 2023ixf in Messier 101: Photo-ionization of Dense, Close-in Circumstellar Material in a Nearby Type II Supernova, and https://arxiv.org/abs/2306.04722 = SN2023ixf in Messier 101: A Variable Red Supergiant as the Progenitor Candidate to a Type II Supernova

Gemini North, part of the International #Gemini Observatory operated by NSF’s #NOIRLab, is back observing the night sky following the repair and refurbishment of its primary mirror after an accident: https://noirlab.edu/public/news/noirlab2315/ - the telescope’s debut observation captured the supernova dubbed #SN2023ixf.

Here is some data on the change in brightness of a few past supernovae.

Luminosity of a Type II SN rises for 1-3 weeks and then declines over months.
Type II-L SNe have a steady decline rate, while Type II-P supernova exhibit an intermediate plateau period with a reduced decline rate.
The average decay rate of 0.008 mag per day is much lower than that of Type Ia SNe.

https://arxiv.org/abs/0904.0119
https://en.wikipedia.org/wiki/Type_II_supernova
#SN2023ixf #Supernova #M101
2/n

18 days after it exploded on May 19, supernova SN2023ixf in the Pinwheel Galaxy M101 seems to be dimming a bit, as all Type II SNe do, gradually over a period of several months.

Note that an increase in magnitude by 1 implies a decrease in luminosity by a factor of 2.512.
Pre-explosion mag was ~24.
See this thread https://fosstodon.org/@AkaSci/110402301121258093 for more info on SN2023ixf.
Image: https://www.virtualtelescope.eu/2023/06/07/supernova-sn-2023ixf-in-the-messier-101-spiral-galaxy-a-image-6-june-2023/ (reported mag = 10.9 on Jun 6!)
Graph: https://www.aavso.org/LCGv2/index.htm?DateFormat=Calendar&RequestedBands=&view=api.delim&ident=SN%202023ixf&delimiter=@@@
#SN2023ixf #Supernova #M101
1/n

Real-Time #Technosignature Strategies with #SN2023ixf: https://arxiv.org/abs/2306.03118 -> "Several technosignature techniques focus on historic events such as SN 1987A as the basis to search for coordinated signal broadcasts from extraterrestrial agents. The recently discovered SN 2023ixf in the spiral galaxy M101 is the nearest Type II supernova in over a decade, and will serve as an important benchmark event. [...] We are commencing a radio technosignature monitoring campaign". #SETI

Ein DWD-Mitarbeiter nutzte die klaren Nächte in sehr trockener Luft, um die #Supernova #SN2023ixf in der Galaxie M101 zu fotografieren (21. Mio. Lichtjahre Entfernung).

M101 Pinwheel Galaxy and the newly discovered supernova SN2023ixf from the Bootleg Astronomy 2023 Spring Star Party. Comparing with my 2022 photo, you can see the supernova just wasn't there yet. Who says reshooting targets isn't worth it? More image details on Telescopius or Astrobin. Thanks for looking and Clear Skies!

TS APO 90/600
ZWO 533MC Pro
EQ6-R Pro
Baader M&S
118 x 120sec

#astrophotography #astronomy #space #astrodon #stars #m101 #sn2023ixf #galaxy #nightsky

Clear skies at last, after 3 months of clouds… This is the pinwheel galaxy (M101) with the supernova SN2023ixf (marked with small red lines) that has appeared on May 19. This picture was taken during 2 consecutive nights (May 27 and 28) with a small refractor (400mm focal length). Total integration time was 4h50. Image processed with Pixinsight.

#astrophotography #astronomy #supernova #M101 #SN2023ixf

Supernova #SN2023ixf is the brightest, nearest supernova seen in nearly a decade. Here's a map of our cosmic neighborhood to show what "near" means to a cosmologist. The supernova is in galaxy M1010; the map is about 40 million light years across.
https://iopscience.iop.org/article/10.1088/0004-6256/146/3/69 #cosmology #astronomy

What does a supernova look like before it blows? Archival images from the Hubble telescope captured the progenitor of #SN2023ixf, the intense stellar explosion now visible in nearby galaxy M101.
https://arxiv.org/abs/2305.14447
https://www.wis-tns.org/astronotes/astronote/2023-139 #space #astrodon

Confirmed that I really saw the supernova #sn2023ixf in the Pinwheel Galaxy M101 with 8” #Dob Instead of SkySafari, this time I used an old 2 min unstretched image from CloudyNights. Marked all relevant star patterns around the galaxy, and confirmed these patterns in the eyepiece. From the triangle of 10th mag stars towards the galaxy, found two stars, 12th mag and 11th mag. They form a nice triangle with the supernova. Its brightness is comparable to the 11th mag star! #Astrodon #astronomy

My video on SN2023ixf can be found here: https://www.youtube.com/watch?v=1MrPU5dVDQo

91 second video about the supernova, my gear, and image.

#Astronomy #astrophotography #astrodon #space #YouTube #supernova #SN2023ixf

How much brighter #Supernova #SN2023ixf grew in 7 days!

This video by @spacetaxi shows the comparison between May 20 and May 27.
https://bonn.social/@spacetaxi/110441973052829254

Here's a quick blink of the supernova between Mar and May 2023. Same gear, similar integration.

Watch the very short video I made about the supernova, my gear, and my two images here: https://www.youtube.com/watch?v=1MrPU5dVDQo

#astronomy #astrophotography #Supernova #SN2023ixf #M101 #Space #astrodon

I finally managed to process my own image of the #SN2023ixf supernova in #M101.
Crazy to think this event actually happend some 21 million years ago, but we can still observe it changing brightness in mere days.

#supernova #astrophotography #astrodon #space

Finally had time to image and process #SN2023ixf. This is my second Supernova capture this year!

These are both around 90 min integrations. Will make a quick video about this but won't be able to capture further images sadly.

#astronomy #astrophotography #space #Supernova #M101 #astrodon

Have not posted in a while - too many other things going on.

Saturday night past, did get to program my robotic backyard observatory to capture a few images (while I was on the road) of new supernova in Messier101: #SN2023ixf. Fortunately dodged forest fire smoke from opposite side of my country - smoke has been coming and going for a couple weeks now.

Only 14 two-minute subs so its a bit noisy. SN is noticeably blue'ish in colour.

#astrodon #astrophotography #astronomy

"Astronomen der Universität Potsdam ist es gelungen, eine der global ersten Helligkeitsmessungen der erst am Freitagabend entdeckten Supernova SN2023ixf im Sternbild Ursa Major durchzuführen. Es ist der hellste entdeckte Ausbruch seit mehr als zehn Jahren in der Galaxie Messier 101. Eine Medieninformation der Universität Potsdam (UP)."

https://www.raumfahrer.net/up-explosion-am-nachthimmel-erste-helligkeitsmessungen-der-supernova-sn2023ixf/

#Astronomie #Feuerradgalaxie #Golm #M101 #SN2023ixf #Supernova #SupernovaTypII #UP

23.5.2023

Bright Supernova Blazes in M101, the Pinwheel Galaxy. By Bob King - Sky & Telescope https://skyandtelescope.org/astronomy-news/bright-supernova-blazes-in-m101-the-pinwheel-galaxy/

#Astronomy #Supernovae #SN2023ixf