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- Celestial objects, space, and the physical universe as a whole.
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Jan16-12 Greg Bernhardt
aandc, library, reference Sticky Thread Pinned: A&C reference library ( 1 2 3 ... Last)
Use this topic to post links to helpful/informative websites about astronomy & cosmology.
Jul3-14 06:29 PM
140 114,042
Hellfire requested that I post a list of classic papers that one could use for reference when trying to understand the...
Nov28-12 01:12 AM
17 45,217
What are the similarities and differences between a black hole and a black body?
Jul31-03 08:07 PM
2 4,226
A powerful X-ray blast drew the attention of astronomers to the event, located near the center of an otherwise...
Feb20-04 12:36 AM
0 1,526
Nov21-04 07:47 PM
0 1,827
this paper discusses how to make a black hole bomb taking profit of a phenomenon known as superradiant scattering ...
Apr14-04 10:32 PM
Nommos Prime (Dogon)
1 2,069
what would happen if a black hole collides with a black hole with the speed of light
Jun16-09 01:53 AM
13 1,484
From my desktop it seems that a BH is the coldest integral body in the universe, and its BEC-like existance demands it...
Aug6-04 05:48 AM
ZZ Boson
0 1,304
How can the atoms of a back hole move if they are a compression of so much mass? Maybe black holes in the absolute...
Jan13-05 12:15 AM
13 1,677
In a recent thread I erroneously claimed an obsever falling into a black hole would experience infinite blue shift at...
Nov13-09 11:52 PM
0 1,060
I’ll speak in terms of gravity instead of space-time in efforts to keeps this as simple as possible… Question: The...
Jun24-05 11:26 PM
"Requiescat in pace"
2 1,428
what is the final stage of black hole mean what its the next stage turning to be (in what form ) why black hole is...
Jul16-13 02:55 PM
1 974
Hello, this is my first topic. but i was thinking, Theoretically if you have a way to detect radiation from far...
Dec9-10 09:05 PM
6 1,210
I have heard that a Black Holes gravitation field is so strong, light itself (a form of energy, not matter) can be...
Sep1-11 11:16 AM
4 1,859
I just read an article on that a black Hole was discovered in the process of destroying an unfortunate...
Aug26-11 11:42 PM
2 2,077
I am a geographer with limited experience in astronomy but I have been trying to find connections between the 2012...
Oct6-09 06:08 PM
3 4,000
In thermodynamics, I assume that any closed system that can be described in terms of individual objects/particles and...
Feb3-13 08:57 AM
3 713
Would is be possible for electromagnetism so help something escape from a black hole past the event horizon? Gravity...
Dec1-09 12:28 AM
4 1,175
If it is indeed true that black holes (eventually) evaporate, then once they lose enough mass do they then return to...
Feb27-08 12:51 AM
2 1,897
black holes evaporate, i know that it sounds like it defies all rational elucidation but i think that black holes...
Sep22-10 02:15 AM
21 4,110
I hear that black holes evaporate, but does it all get converted into Hawkins radiation? And what role do white holes...
May6-13 01:44 PM
Geordie Ross
4 977
During black hole thermal radiation can mass be radiated while entropy stays? Is it possible that entropy stays in the...
Dec23-11 04:44 PM
1 1,892
Hey, my first post here, glad I've found somewhere on the internet to discus this crazy stuff! Anyway heres my...
Mar10-05 08:08 PM
2 3,170
The spacetime geometry outside a black hole may be transformable through the event horizon as the black hole internal...
Apr12-03 11:45 AM
Loren Booda
2 2,834
These damn shows on the Science Channel seem to raise more questions for me than they answer, and maybe I'm...
Dec24-11 03:08 PM
11 3,564
Hello all, Cosmic Variance just had a great post up about Black Holes, wherein they were talking about something...
Oct3-12 07:08 PM
2 1,375
Hi, does anyone know how much of the universes's iron or carbon has been made in supernovae that formed black...
Apr6-14 11:31 AM
Ken G
5 1,056
When a neutron star flucuates into a black hole does the gravity increase tenfold? Or does the neutron star gravity...
Oct24-10 11:04 AM
2 3,334
Hi all! This is not a problem for my homework. It is just something I was reading in my text book and wanted a little...
Sep30-10 11:34 PM
8 1,077
Can anybody tell me if there are any puzzles or anomalies with respect to candidate black holes? For example if we...
Jun5-07 12:12 PM
1 1,326
What is the maximum approximate black hole size that would have negative growth rate as a function of average local...
Apr5-13 03:11 PM
George Jones
2 1,036
Are the two following hypothetical observations contradictory according to GR? 1. Particles fall towards a black...
Jun15-11 02:22 PM
22 3,267
for example take two halves of a black hole as m1 and m2. since we told black hole has no volume so we take distance...
Sep27-12 11:08 PM
3 1,124
Hello, I am a newbie to these forums, so please be patient with me! OK, my first (but not only) problem is getting to...
Sep12-10 04:09 PM
4 2,617
Take a small bh say 100 sol masses, how long would it take to ingest a Earth size planet?
Jan13-12 10:27 AM
Cosmo Novice
6 1,501
(Correct me if you think i'm wrong in anyway, I am open to new ideas.) A black hole is created when a planetary mass...
May17-14 07:47 PM
Simon Bridge
2 665
If a black hole is approaching towards our solar system, at what point could it be detected and is there anything we...
Nov19-10 04:17 PM
14 5,677
I am trying to get my head round this problem but not having studied it I need some help.
Aug16-12 08:42 PM
2 970
I just read an article about recently observed jets emitted from a black hole, apparently due to the extreme...
Jul15-10 09:14 PM
8 2,514
Dear Internet- As part of an introductory Astronomy course, it is time to compile a mock research proposal,...
May29-11 03:21 PM
42 8,030
recently i came to know that the jets of gases from black holes are due to magnetic in effect does this...
Mar4-11 06:49 PM
7 1,244
I have read that coiled up magnetic fields are responsible for the jets that are observed along the axis of rotation...
Feb5-11 02:08 AM
1 1,816

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