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An x-ray binary containing a star with mass greater than 3Msun and a companion with mass greater than 3Msun.

As long as the size of the companion exceeds the neutron star size limit and has no light that can be detected then it is probably a black hole.

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If you live on earth how far are you from the black hole?

There is not "a" black hole, but many of them. The nearest known black hole is at a distance of several thousand light-years, but it is likely that there are others closer by: only black holes that are very near of a partner (in a binary system) are easily found.There is not "a" black hole, but many of them. The nearest known black hole is at a distance of several thousand light-years, but it is likely that there are others closer by: only black holes that are very near of a partner (in a binary system) are easily found.There is not "a" black hole, but many of them. The nearest known black hole is at a distance of several thousand light-years, but it is likely that there are others closer by: only black holes that are very near of a partner (in a binary system) are easily found.There is not "a" black hole, but many of them. The nearest known black hole is at a distance of several thousand light-years, but it is likely that there are others closer by: only black holes that are very near of a partner (in a binary system) are easily found.


Can a member of a binary system be a black hole?

Yes.


How many black holes make one binary system?

well you wouldn't need any to make a black holes to make binary systems but what do make binary systems are two stars.


Is there ever going to be a blackhole near your solar system?

There may already be one. The nearest black hole known is a few thousand light years away, but it is easier to find black hole if they are part of a close binary system. A single star converting to a black hole, or a part of a binary system where the components are not very near, would be difficult to detect.There may already be one. The nearest black hole known is a few thousand light years away, but it is easier to find black hole if they are part of a close binary system. A single star converting to a black hole, or a part of a binary system where the components are not very near, would be difficult to detect.There may already be one. The nearest black hole known is a few thousand light years away, but it is easier to find black hole if they are part of a close binary system. A single star converting to a black hole, or a part of a binary system where the components are not very near, would be difficult to detect.There may already be one. The nearest black hole known is a few thousand light years away, but it is easier to find black hole if they are part of a close binary system. A single star converting to a black hole, or a part of a binary system where the components are not very near, would be difficult to detect.


Why all of the observed stellar -remmant black-hole candidates members of close binary systems?

Those are easier to observe than an isolated black hole, because the black holes are usually discovered because of infalling matter that emits X-rays, or because other objects move around an invisible object (the black hole).


How can a neutron star in a binary star system become a black hole?

In this particular case the binary companion star can keep "feeding" mass into the neutron star, thus increasing its mass and gravity. It's one possible mechanism for the creation of a black hole - a neutron star in a binary system forms at a time when neutron degeneracy pressure was sufficient to prevent further collapse, but with additional mass it is no longer adequate and the neutron star would collapse further into a more exotic form like a quark star or a black hole.


Black holes where can you find them?

The nearest know black hole is at a distance of several thousand light-years. There are probably black holes closer by, but they are hard to detect, if they don't happen to be part of a close binary star system.The nearest know black hole is at a distance of several thousand light-years. There are probably black holes closer by, but they are hard to detect, if they don't happen to be part of a close binary star system.The nearest know black hole is at a distance of several thousand light-years. There are probably black holes closer by, but they are hard to detect, if they don't happen to be part of a close binary star system.The nearest know black hole is at a distance of several thousand light-years. There are probably black holes closer by, but they are hard to detect, if they don't happen to be part of a close binary star system.


What are some examples of stars that have already turned into black holes?

Cygnus X-1; Sagittarius A* Actually, any observed black hole can be assumed to have been a star at some moment; although in the case of the supermassive black holes, it is not quite clear how they formed.


What does Black Tower contain?

it contain frinches


Does the Binary Bard love the Black Widow?

Yes, I am pretty sure.


Can smoking black and mild cause you to fail a nicotine test in urine?

Yes, smoking Black and Mild cigars can lead to a positive result in a nicotine urine test. These cigars contain tobacco and nicotine, which can be detected in the urine for several days after use. If you have consumed them recently, it is likely that the nicotine metabolites will be present in your system during testing.


How do you get binary data from the image?

You divide the image into two axes (X and Y), and work out positions across the image using a coordinate system. E.g. if the X axis is A - Z and the Y axis is 1 - 10, you can refer to a particular position in the image as C-8. If that C-8 grid or pixel is black, the value is 1, if it is white, the value is 0. In statistical analysis, this system is used to visually explore contingency tables-- the X axis can contain a list of categories and the Y axis can contain a list of cases.