phys.org

ekZepp, do astronomy w Scientist performs the first nonlinear study of black hole mimickers
@ekZepp@lemmy.world avatar

A nonlinear study refers to an approach that does not follow a straight, sequential path in analyzing or modeling phenomena. Instead, it allows for complex relationships where changes in one variable do not directly correspond to changes in another, often leading to unpredictable outcomes. In the article, a Princeton scientist explored the nonlinear dynamics of boson stars, a type of black hole mimicker. His research revealed unique gravitational wave signals during mergers, distinct from those of traditional black holes, which could aid in identifying these mimickers in future gravitational wave observation

DaMonsterKnees,
@DaMonsterKnees@lemmy.world avatar

And we found the MVP. Cheers to you, mate, and your explanation, thanks!

Lookorex,

I would also like to thank you for that

ekZepp,
@ekZepp@lemmy.world avatar

👌

pwnicholson, do astronomy w Half of the universe's hydrogen gas, long unaccounted for, has been found
@pwnicholson@lemmy.world avatar

It’s always in the last place you look.

spankmonkey,
@spankmonkey@lemmy.world avatar

Because you stop looking…

pwnicholson,
@pwnicholson@lemmy.world avatar

Yes, that’s the joke.

Eldritch,

No matter where you go, there you are.

Enkers,

Because I’m in the last place I look?

sepi,

You look like you're in the last place we looked

Redacted, do astronomy w 'Islands' of regularity discovered in the famously chaotic three-body problem
@Redacted@lemmy.world avatar

Rehydrate!

deegeese, do astronomy w Webb directly images two planets orbiting white dwarfs
Grass, do astronomy w Saturn's largest moon most likely uninhabitable

Did anyone ever think it was inhabitable?

thebardingreen,
@thebardingreen@lemmy.starlightkel.xyz avatar

The news is really interesting exobiology science, but the headline is terrible.

wintermute_oregon,

Yes. That’s been a theory even since I was a child in the 70’s. They don’t mean humans but life in general

tunetardis, do astronomy w For your processing pleasure: The sharpest pictures of Jupiter's volcanic moon Io in a generation

It’s impressive how much detail Juno was able to capture even on the night side. What I love about Io is how it’s instantly recognizable. Nothing even remotely resembles it in the solar system.

derphurr, do astronomy w Discovery of second ultra-large structure in distant space further challenges our understanding of the universe

It’s not a “new” discovery or even the “second”. I suggest they read the 2015 paper they are almost copying from.

2015 dx.doi.org/10.1093/mnras/stv1421

Evidence suggests that this feature is the projection of a shell on to the plane of the sky. Voids and string-like formations are common outcomes of large-scale structure. However, these structures have maximum sizes of 150 Mpc, which are an order of magnitude smaller than the observed GRB ring diameter. Evidence in support of the shell interpretation requires that temporal information of the transient GRBs be included in the analysis. This ring-shaped feature is large enough to contradict the CP. The physical mechanism responsible for causing it is unknown.

Weird reporting like this is “new” GRB ring out of Swift and Sloan SDSS data.

Sloan Great Wall, which is around 1.5 billion light-years in length

South Pole Wall, which stretches 1.4 billion light-years across.

Hercules-Corona Borealis Great Wall, which is about 10 billion light-years wide

2015 en.m.wikipedia.org/wiki/Giant_GRB_Ring

It is approximately 9.1 billion light years from Earth and about 5.6 billion light years across

New objects:

Big Ring in the Sky is 9.2 billion light-years from Earth. It has a diameter of about 1.3 billion light-years

Giant Arc in the Sky which is 3.3 billion light-years across,

thefartographer, do astronomy w Half of the universe's hydrogen gas, long unaccounted for, has been found

Was it in the couch cushions? That’s where I often find things.

Scubus,

Surprised jd vance face

Shdwdrgn, do astronomy w New research finds that young planets are flattened structures rather than spherical

Cue the flat-earthers who are going to jump on this while completely ignoring all other aspects including the gravity required to make this happen, and somehow claim this is scientific proof that they were right.

1984,
@1984@lemmy.today avatar

I don’t think flat earthers are getting their ideas from mainstream scientific websites.

Daxtron2, do astronomy w New images reveal what Neptune and Uranus really look like

Ugh well one of us is going to have to change.

luckystarr, do astronomy w Half of the universe's hydrogen gas, long unaccounted for, has been found

If I understood this correctly, they analyzed incredibly blurry images and concluded that there are clouds of gas around galaxies, then they extrapolated the found gas up to all or almost all galaxies and concluded that it can fulfill the calculated expectations.

BaroqueInMind,

Thank you. Saved me a click?

OfCourseNot,
@OfCourseNot@fedia.io avatar

What I understood is kind of the opposite–they already knew there were hidrogene clouds around galaxies but analyzed some almost imperceptibly blurry images and found they were bigger than currently thought. They're blurry because they were taken in some wavelength not observable until now that is scattered by the ionized gas.

gravitas_deficiency, do astronomy w Japan's precision moon lander has hit its target, but it appears to be upside-down
Grandwolf319, do astronomy w Half of the universe's hydrogen gas, long unaccounted for, has been found

Astronomers have generally thought that massive black holes at the centers of galaxies expel gas in jets of material only during their formative years, when the central black hole is gobbling up gas and stars and producing lots of radiation. This makes them stand out as what astronomers call active galactic nuclei (AGN), or quasars.

If, as the new study suggests, the ionized hydrogen halo around galaxies is more diffuse, but also more extensive, than thought, this implies that the central black holes may actually become active at other times in their lives.

I love how we keep finding more and more about the role that black holes play in our universe.

thefartographer, do astronomy w Astronomers deal a blow to theory that Venus once had liquid water on its surface

Astronomers: Nuh-uh

Phys.org: Oh shit!

Me: I bet I can be dumb on the internet

Jeredin, do astronomy w Lightest black hole or heaviest neutron star? MeerKAT uncovers a mysterious object in Milky Way

I’ve been studying the range of neutron stars for some time and I feel confident it won’t be too long until much of our evidence and observations will show that black holes, quasars, super massive black holes and the range of other black holes are very likely, more extreme neutron stars - if not quark-like stars or stellar quantum-like objects. For fun, I’ve been also been focusing on colloids, extreme condensates and their quantum/relativistic phases/states; very revealing interactions and emergent properties. Now if we could just better observe zero-point energy…

5714,

What is zero-point energy?

Jeredin,
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