Starship Asterisk*

SUPPOSE A BLACK HOLE OF SAY 10 SOLAR MASS WERE TO BECOME GRAVATATIONALY ATTACHED TO A STAR STILL BURNING WHICH IS 1000 SOLAR MASS, THE STILL BURNING GETS SUCKED IN " OR VICE VERSA "
WOULD THE BLACK HOLE WIN " SO TO SPEAK " OR WOULD THERE BE AN EXPLOSION, OR WOULD THE STAR KEEP BURNING AND NOW BE A 10010 SOLAR MASS STAR.

JUST WONDERING, SEEMS I ALL KNOW ABOUT IS REAPING SOULS THESE DAYS

Hi Grim R

For one of them to eat the other in a short time the orbit will have to be relatively short. If the orbit is big (far from each other) then that big star will have time to burn up all its H and then He and etch... till it become itself a black hole before the small black hole get a close enough orbit to eat it.

So if the orbit is small then I think that the small black hole will suck the big star. And at the end you will have 1010 sun mass black hole. Or a slightly less mass. But the black hole win for sure.

That opinion is from what i read on black hole and understand. I am still reading about it.

Thank you Doum
Maybe I should state this another way though
I have seen computer simulations showing stars around the center of Sag A flying around at millions of miles an hour “ Obviously interacting with huge gravitational forces “ A huge black hole, or two?
In any event say that small black hole and that very large star were to come together in a random act of a collision
The small black hole would eat the huge star?

I think yes. The big star will be completely absorb. it will deform and become a flat disc around the blck hole as it fall in it. There might be giant jet accompanying it.

I believe that the entire process is determined by a Diameter-Mass-Gravity Ratio. If the BH object is really dense say 10 solar masses packed into an object that is 1k diameter, then It's gravity well would be sofficient to prevent matter from escaping it's clutches. While the 1000 solar mass star which would likely have a diameter of Saturn's orbit wouldn't have the gravity necessary to prevent the escape of matter...
So the tiny BH would strip off material from the titanic star and grow as it did. Eventually it would likely completely canibalize the larger star and become a 1000 stellar mass BH. I say 1000 but it could likely be less as matter would likely be expelled from the accretion disk in the form of active jets.

WOW, black holes are mean dudes to say the least.

G'day

The so called black holes with respect to stellar size increase in mass as they approach the centre of the galaxy where we do have black holes that are a few hundred to thousands of sun masses and one several million.


GROWING BLACK HOLES:
Accretion in a Cosmological Context
http://www.mpa-garching.mpg.de/~bh-grow/

Heaviest Stellar Black Hole Discovered In Nearby Galaxy
http://www.sciencedaily.com/releases/20 ... 145225.htm

Massive Black Hole Smashes Record
http://www.sciencedaily.com/releases/20 ... 112102.htm

Black Holes: by Alex Nervosa
http://astronomyonline.org/Stars/BlackHole.asp


APOD: 2006 July 29 - The Swarm
http://antwrp.gsfc.nasa.gov/apod/ap060729.html
Centre of the Milky Way Galaxy


X-APOD: 2003 July 12 - X-Ray Milky Way
Rays from the Galactic Core
http://antwrp.gsfc.nasa.gov/apod/ap041106.html

The size of the black hole
If the density of the degenrate matter is 10^17 Kg/m3
1000 sun mases would fit 100 Km dia core estimate.


Ok, someone with a calculator can do this.
If the Sun could fit into 10 Km ball
Whats the size of the ball to fit 1000?

Grim R wrote:SUPPOSE A BLACK HOLE OF SAY 10 SOLAR MASS WERE TO BECOME GRAVATATIONALY ATTACHED TO A STAR STILL BURNING WHICH IS 1000 SOLAR MASS, THE STILL BURNING GETS SUCKED IN " OR VICE VERSA "
WOULD THE BLACK HOLE WIN " SO TO SPEAK " OR WOULD THERE BE AN EXPLOSION, OR WOULD THE STAR KEEP BURNING AND NOW BE A 10010 SOLAR MASS STAR.

JUST WONDERING, SEEMS I ALL KNOW ABOUT IS REAPING SOULS THESE DAYS

A black hole needs to consume millions of galaxies before it explodes into a Big Bang. Until then, only progressively larger Little Bangs (Quasars) result with every galactic meal.

Hello God


A so called black hole does not ned to be that big to be active.

Active black holes: Ultra-hot cosmic beacons
http://www.einstein-online.info/en/spot ... index.html

Jets in Supermassive and Stellar-Mass Black Holes
http://www.citebase.org/abstract?id=oai ... ph/0302195

Accreting Pulsating Neutron Stars
http://pulsar.sternwarte.uni-erlangen.d ... ttable.cgi

Black Holes and Neutron Stars
http://www.eclipse.net/~cmmiller/BH/blkmain.html

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Neutron Star Born Instead of Black Hole
http://www.jyi.org/news/nb.php?id=615

05 November 2005 - The collapse of a massive star produced a neutron star instead of a black hole, surprising astrophysicists, who reported the find in the November edition of Astrophysical Journal Letters.

The discovery indicates that black holes are not as easily made in nature as once thought. Astronomers have yet to figure out the exact conditions required for a massive star to form a black hole versus a neutron star.

“Our discovery shows that some of the most massive stars do not collapse to form black holes as predicted, but instead form neutron stars,” says Michael Muno, a UCLA postdoctoral Hubble Fellow and the lead scientist on the team that made the discovery using observations from NASA’s Chandra X-ray Observatory.

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http://deep-space-astronomy.suite101.co ... r_xray_jet

NASA's Chandra X-ray Observatory reveals a neutron star powering a gigantic jet that rivals black holes and their jets.

harry wrote:Hello God

A so called black hole does not ned to be that big to be active.

Harry> Yes, I know. A dormant black hole becomes active when fed. The output of a black hole is determined by both the size of the hole and its meal. Small meals and black holes produce jets. When a super-massive black hole that has consumed many galaxies consumes another like itself, a quasar is produced. When a black hole that has consumed millions of galaxies consumes another like itself, a Big Bang occurs.

Hello God

A quarsar is produced in varies sizes. A quasar is a star like body that is produced via collsion or break up while falling into a so called black hole or via jet ejection from a black hole.

The amount and speed of infalling matter determines the size of the so called black hole, which I prefer to call compact matter.

These compact matters can range from one solar mass to over 10 Billion solar masses.

harry wrote:Hello God

A quarsar is produced in varies sizes. A quasar is a star like body that is produced via collsion or break up while falling into a so called black hole or via jet ejection from a black hole.

The amount and speed of infalling matter determines the size of the so called black hole, which I prefer to call compact matter.

These compact matters can range from one solar mass to over 10 Billion solar masses.

Harry> What you've related is fairly accurate, except that a quasar isn't a star like body -- it's a Little Bang; and "compact matter" can range to over many quintillion solar masses before becoming a Big Bang.

Hello God


You said

Harry> What you've related is fairly accurate, except that a quasar isn't a star like body -- it's a Little Bang; and "compact matter" can range to over many quintillion solar masses before becoming a Big Bang.

I do not agree:


Microquasars: disk–jet coupling in stellar-mass black holes
http://journals.cambridge.org/action/di ... id=1026420

Abstract
Microquasars provide new insights into: 1) the physics of relativistic jets from black holes, 2) the connection between accretion and ejection, and 3) the physical mechanisms in the formation of stellar-mass black holes. Furthermore, the studies of microquasars in our Galaxy can provide in the future new insights on: 1) a large fraction of the ultraluminous X-ray sources in nearby galaxies, 2) gamma-ray bursts (GRBs) of long duration in distant galaxies, and 3) the physics in the jets of blazars. If jets in GRBs, microquasars and Active Galactic Nuclei (AGN) are due to a unique universal magnetohydrodynamic mechanism, synergy of the research on these three different classes of cosmic objects will lead to further progress in black hole physics and astrophysics.

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Quasars
http://csep10.phys.utk.edu/astr162/lect ... asars.html

These objects were named Quasistellar Radio Sources (meaning "star-like radio sources") which was soon contracted to quasars. Later, it was found that many similar objects did not emit radio waves. These were termed Quasistellar Objects or QSOs. Now, all of these are often termed quasars (Only about 1% of the quasars discovered to date have detectable radio emission).

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HST images of quasars
http://www.sns.ias.edu/~jnb/HST/hstimages.html

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A quasar may have a compact body such as the so called black holes.
The overall effect of a quasar is created by matter breaking up as it falls towards the so called black hole. This generates alot of light being released making it 100's of times brighter than the galaxy itself.

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Quasar search
http://antwrp.gsfc.nasa.gov/cgi-bin/apo ... rch?quasar

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APOD: December 2, 1997 - Micro-Quasar GRS1915 Puffs

http://antwrp.gsfc.nasa.gov/apod/ap971202.html

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The brightest quasar: 3C 273 and its jet
http://www.astr.ua.edu/keel/agn/3c273.html

Quasars and Active Galactic Nuclei
http://hera.ph1.uni-koeln.de/~heintzma/ ... /Index.htm

Quasars and Active Galactic Nuclei
http://www.astr.ua.edu/keel/agn/

New Picture of Quasar Emerges
http://www.physorg.com/news73057202.html

In the distant, young universe, quasars shine with a brilliance unmatched by anything in the local cosmos. Although they appear starlike in optical telescopes, quasars are actually the bright centers of galaxies located billions of light-years from Earth.

Now depends on what quasar you are defining will determine what properties it has.

As for little bang and big bang, i do not undestand your point.