Black Hole in Cygnus X-1 Confirmed
http://www.dearastronomer.com/
How much more black could this be?
The answer is none. None more black.
Sarah Scoles at Breakdown: Science’s Smaller Questions writes:
“ One of the most famous black holes (for a ranked list of all famous black holes and details of their exploits, visit TMZ) is 1/2 of Cygnus X-1, a binary system in which only one companion emits light.
Astronomers have long hypothesized that the “dark star” in this binary was a black hole, but true proof did not come until last week, with the publication of three papers in the Astrophysical Journal–one precisely measuring the distance, one precisely measuring the mass, and one precisely measuring the spin.“
In her blog post, Sarah addresses the the question that had, until recently been unsolved – “Does the massive blue star orbit a black hole or a neutron star?”
You can read her full blog post at: http://www.smallerquestions.org/2011/07/after-years-of-belief-confirmation-it.html and if you’d like to read more from Breakdown: Science’s Smaller Questions, you can visit at: http://www.smallerquestions.org, or click on the link on our “Blogroll” to the right.
Source:Breakdown: Science’s Smaller Questions
Ray Sanders is a Sci-Fi geek, astronomer and blogger. Currently researching variable stars at Arizona State University, he writes for Universe Today, The Planetary Society blog, and his own blog, Dear Astronomer
2012-12-04 08:06:19
Source: http://www.dearastronomer.com/2011/07/06/black-hole-in-cygnus-x-1-confirmed/
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