Quantcast
Last updated on April 20, 2014 at 17:20 EDT

Latest Stellar black hole Stories

X-Ray Nova Reveals A Black Hole Surprise
2012-10-05 15:40:26

[ Watch the Video: X-ray Nova Reveals a New Black Hole in Our Galaxy ] Lee Rannals for redOrbit.com - Your Universe Online A new stellar-mass black hole has been discovered in our galaxy by NASA's Swift satellite. High-energy X-rays emanating from a source towards the center of our Milky Way galaxy were observed, indicating the presence of a previously unknown black hole. "Bright X-ray novae are so rare that they're essentially once-a-mission events and this is the first one...

Messier 22 Has Two Black Holes
2012-10-03 12:49:09

Lee Rannals for redOrbit.com - Your Universe Online A surprising black hole discovery made while using the National Science Foundation's Karl G. Jansky Very Large Array (VLA) is causing scientists to change what they know of globular star clusters. Astronomers used VLA to study the globular cluster known as Messier 22, which is a tight-knit collection of hundreds of thousands of stars that lie 10,000 light-years away from Earth. The team had hoped to find evidence for a rare type of...

X-ray Signal Detected During Black Hole's Destruction Of Passing Star
2012-08-03 15:48:00

[Watch Video] Lee Rannals for redOrbit.com — Your Universe Online Astronomers have identified an X-ray signal that followed an observation made last year of a quiescent black hole in a distant galaxy. The black hole discovered by the team last year was seen erupting after shredding and consuming a passing star. Astronomers then witnessed days following the observation a distinctive X-ray signal that comes from matter on the verge of falling into the black hole. This...

Black Holes Need Diet Rich In Stars To Grow
2012-07-20 12:21:35

Lawrence LeBlond for redOrbit.com - Your Universe Online Researchers from several American institutes and agencies have developed a new model showing how an elusive type of black hole can be formed in the gas surrounding their supermassive counterparts. The scientists, from the American Museum of Natural History (AMNH), the City University of New York (CUNY), the Jet Propulsion Laboratory (JPL) of the California Institute of Technology (Caltech), and the Harvard-Smithsonian Center for...

Belching Black Hole
2012-07-09 11:03:28

Observations with CSIRO's Australia Telescope Compact Array have confirmed that astronomers have found the first known "middleweight" black hole. Outbursts of super-hot gas observed with a CSIRO radio telescope have clinched the identity of the first known "middleweight" black hole, Science Express reports online today. Called HLX-1 ("hyper-luminous X-ray source 1"), the black hole lies in a galaxy called ESO 243-49, about 300 million light-years away. Before it was found,...

space-070612-004
2012-07-06 12:37:40

Lee Rannals for redOrbit.com - Your Universe Online Astronomers have spotted the first known "middleweight" black hole, according to a publication in Science Express. The black hole was found with a CSIRO radio telescope in a galaxy called ESO 243-49, which is about 300 million light-years away. Before the black hole was found, astronomers had only known of supermassive black holes and "stellar mass" ones. "This is the first object that we're really sure is an intermediate-mass...

Astronomers Catch Supermassive Black Hole Devouring Distant Star
2012-05-02 14:24:52

Lawrence LeBlond for RedOrbit.com [ Watch the Video ] Astronomers have for the very first time captured a supermassive black hole devouring a wandering star that strayed too close to a phenomena that nothing can escape, not even light. Although the star most likely met its demise in an untimely fashion, it is an extraordinary event for science and astronomy, as scientists believe it may provide them with greater clues on the inner workings of dark behemoths nestled away in the hearts...

Chandra Reveals Outburst From Old Black Holes
2012-04-30 14:03:12

Astronomers using NASA's Chandra X-ray Observatory have found evidence for a population of old stellar black holes. The discovery provides new insight into the nature of stellar black holes, which is a class that can produce as much energy in X-rays as what a million suns could radiate at all wavelengths. The astronomers used Chandra to find an outburst that was produced by a black hole in the spiral galaxy M83, which is located about 15 million light years from Earth. Chandra helped...

2012-04-30 06:21:08

WASHINGTON, April 30, 2012 /PRNewswire-USNewswire/ -- An extraordinary outburst produced by a black hole in a nearby galaxy has provided direct evidence for a population of old, volatile stellar black holes. The discovery, made by astronomers using NASA's Chandra X-ray Observatory, provides new insight into the nature of a mysterious class of black holes that can produce as much energy in X-rays as a million suns radiate at all wavelengths. (Logo:...

What Fuels Black Hole Growth?
2012-04-03 04:46:20

"Black holes are very efficient eating machines“¦ They can double their mass in less than a billion years. That may seem long by human standards, but over the history of the Galaxy it's pretty fast,” said Scott Kenyon of the Harvard-Smithsonian Center for Astrophysics (CfA). New research presented by a joint team from the CfA and the University of Utah showed these super-massive star destroyers can balloon in size by absorbing one-half of a binary star system. ...


Latest Stellar black hole Reference Libraries

3_19a73d2fffe222de349da50260d972802
2004-10-19 04:45:40

Cygnus X-1 -- Cygnus X-1 (often abbreviated to Cyg X-1) is an X-ray source in the Cygnus constellation considered to be one of the most likely black hole candidates. The optical counterpart (HDE 226868) is a variable 8.9 magnitude star (visible with good binoculars in good observing conditions.) at right ascension 19 h 56.5 min and declination of 35 deg 4 min (for 1950 epoch). Cyg X-1 is a binary star that contains a O9-B0 supergiant (with a surface temperature of 31000 Kelvin) and a...

More Articles (1 articles) »