Possible Gravitational wave detected by LIGO

This is quoted from a Mastodon post from the MPI for Gravitational Physics

Last night, the two @LIGO detectors observed the second gravitational-wave candidate of the day.

The possible signal with the preliminary designation S250205ee most likely originates – if it is real – from the merger of two black holes.

It occurred at a (luminosity) distance of 9.4 billion light-years.

This brings the total number of significant signal candidates identified in the fourth joint observation run of the international detector network to 190. One (GW230529) has already been fully analyzed and published. The others will also be carefully examined and then published if confirmed.

• GraceDB
• related GCN circulars *Albert Einstein Institute!
• NASA LIGO

#GravitationalWaves #S250205ee #O4IsHere #astronomy #astrophysics #BlackHoles #physics

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Black Hole Tears Star to Shreds, Unleashing Cosmic Shockwaves

Black Hole Tears Star to Shreds, Unleashing Cosmic Shockwaves

This is interesting, I will add a link to NICER (see article) to the links page.

Black holes seem really complex, and there is probably much more to learn. It is also worth watching the two videos as a further explainer to the research and the resulting paper.

So this is looking at a black hole, and how it is interacting with a local star trapped within its gravitational pull, As the star is pulled apart, some of the matter becomes a disk around the black hole, however this matter is then also interacting with another star.

If I understand the paper or at least article, this event links tidal disruption events * and quasi-periodic eruptions, helping astronomers understand black hole environments and shape future research

• The above link is to Wikipedia, as this is NOT an academic source of information, please use a different source, link is for reference only

On an unrelated note, according to the Solar System series by Professor Brian COX, Rings have formed around planets when an object such as an asteroid gets caught in the gravitational pull of the planet, Moons are also objects that have been caught up.

I am not sure if the two phenomenons are related in that stars being ripped apart by a black hole are a similar event, just on a much larger scale.

According to MIT there have been other similar events detailed here

Links

• Science Forums – Physics
  • Science forum question
• Matrix – Physics
• Matrix – Radio Astronomy
• Matrix – Open Astronomy
  • Open Astronomy
• Aritcle
  • Paper

Tags

#Science,#Astronomy.#Physics,#AstroPhysics,#BlackHole

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Handbook of X-ray and Gamma-ray Astrophysics

This was posted to the Fediverse earlier today, I replied to the post with a link to the resource [1]. As mentioned, there are a good few papers on arXiv [2]

This is a great way to bring together related resources so they can be found quickly and easily.

Links

1 Handbook of X-ray and Gamma-ray Astrophysics 2 arXiv

Tags

#Science,#Physics,#Astrophysics,GammaRay,#XRay,#Handbook,#Resource,#arXiv,#Papers,#Articles,#Journal.

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Stsci lectures Feb 2024 update

I have been catching up on these lectures as they are fascinating. The LISA talk was also good as it gave a lot of background information as to the science behind this. Exciting times to come, even though it may be a decade before the mission is launched in to space.

So far I have watched:-

• A Tapestry of Gravity: LISA and the Future of Gravitational Wave Astronomy
• Webb Space Telescope: The First Year of Science

Links

• STSCI
• JWST
• LIGO
• LISA

Tags

#STSCI,#JWST,#LIGO,#LISA,#Space,#Astronomy,#Research,#Science,#Physics,#Astrophysics

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Advances in formation theory of supermassive black holes.

Another article posted to the Fediverse. This looks at new theories around the formation of Supermassive black holes

Supermassive black holes exist in the centres of Galaxies, there is one at the centre of the Milky way galaxy which was photographed a few years ago. The photo below is from the Wikipedia article.

Links

• Wikipedia – Super Massive Blackholes
• Phys.org
  • formation of Supermassive black holes

Tags

#Astronomy,.#Astrophysics,#Cosmology,#SuperMassiveBlackHoles, #Formation.

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Diverse organic-mineral associations in Jezero crater, Mars

The rover that just keeps giving, so looks like “NASA's Perseverance Mars rover discovers more evidence of building blocks of life on Mars.”.

This is from the original Fediverse post by Natalie Davis

NASA's Perseverance Mars rover discovers more evidence of building blocks of life on Mars. Although the organic molecules were not necessarily the products of biological processes, it does raise the chances Mars once had life and could indicate we're looking in the right place.

So exciting stuff, the full article in Nature can be found here

So we are finding more evidence Mars may once have had life. If you want to learn more about some of the basic building blocks of life and how we go about finding these, please check a previous post about the Mumbai University Astrobiology course videos

In the mean time feel free to ask on Fedi or on Science forums.

Tags

#Mars #Perseverance #life #astronomy #astrophysics #astrodon #space #science

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