News tagged with dense star
A supernova cocoon breakthrough
(Phys.org) -- Observations with NASA's Chandra X-ray Observatory have provided the first X-ray evidence of a supernova shock wave breaking through a cocoon of gas surrounding the star that exploded. This discovery ...
May 15, 2012 |
4.8 / 5 (6) |
0
|
NASA's Chandra sees remarkable outburst from old black hole
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 ...
Apr 30, 2012 |
4.3 / 5 (7) |
1
|
Astronomers identify 12-billion-year-old white dwarf stars
A University of Oklahoma assistant professor and colleagues have identified two white dwarf stars considered the oldest and closest known to man. Astronomers identified these 11- to 12-billion-year-old white dwarf stars only ...
Apr 11, 2012 |
4.7 / 5 (18) |
18
|
APEX turns its eye to dark clouds in Taurus
(PhysOrg.com) -- A new image from the APEX (Atacama Pathfinder Experiment) telescope in Chile shows a sinuous filament of cosmic dust more than ten light-years long. In it, newborn stars are hidden, and dense ...
Feb 15, 2012 |
5 / 5 (3) |
1
Remnant of an explosion with a powerful kick?
(PhysOrg.com) -- Vital clues about the devastating ends to the lives of massive stars can be found by studying the aftermath of their explosions. In its more than twelve years of science operations, NASA's ...
Feb 02, 2012 |
not rated yet |
1
|
Stellar embryos
(PhysOrg.com) -- Stars form as gravity coalesces the gas and dust in interstellar clouds until the material produces clumps dense enough to become stars. But precisely how this happens, and whether or not ...
Jan 23, 2012 |
5 / 5 (4) |
6
|
A universal law for star formation
(PhysOrg.com) -- Star formation is studied by astronomers not only because it produces new stars and planetary systems. It also generates copious amounts of ultraviolet light that heats dust which in turn ...
Jan 09, 2012 |
4.7 / 5 (3) |
0
|
Celestial bauble intrigues astronomers
(PhysOrg.com) -- With the holiday season in full swing, a new image from an assembly of telescopes has revealed an unusual cosmic ornament. Data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton have ...
Dec 20, 2011 |
4.7 / 5 (6) |
14
|
Hot cores in dark clouds
(PhysOrg.com) -- The earliest stages in the life of a star are among the most mysterious. This is primarily because stars form inside dark clouds of material that block optical light, and because they form ...
Dec 06, 2011 |
4 / 5 (2) |
1
|
Telescopes help solve ancient supernova mystery
(PhysOrg.com) -- A mystery that began nearly 2,000 years ago, when Chinese astronomers witnessed what would turn out to be an exploding star in the sky, has been solved. New infrared observations from NASA's ...
Oct 24, 2011 |
4.4 / 5 (11) |
8
|
Galaxy caught blowing bubbles
(PhysOrg.com) -- Hubble's famous images of galaxies typically show elegant spirals or soft-edged ellipses. But these neat forms are only representative of large galaxies. Smaller galaxies like the dwarf irregular ...
Sep 29, 2011 |
4.9 / 5 (7) |
12
|
Are stellar explosions created equal?
Cosmic distances are difficult to grasp and no less difficult to measure. When it comes to other galaxies or even remote parts of our own Milky Way, distance measurements are nothing but assessments, derived from indirect ...
Aug 22, 2011 |
5 / 5 (1) |
7
Twisted tale of our galaxy's ring
(PhysOrg.com) -- New observations from the Herschel Space Observatory show a bizarre, twisted ring of dense gas at the center of our Milky Way galaxy. Only a few portions of the ring, which stretches across ...
Jul 20, 2011 |
4.9 / 5 (11) |
17
|
Duo of big telescopes probes the depths of binary star formation
A team of researchers from four Japanese universities (Kobe, Saitama, Osaka, and Tokyo) has been able to delineate the intricate structure of the circumbinary disk that surrounds a young binary star system ...
Jun 21, 2011 |
5 / 5 (2) |
2
'Dead' galaxies are not so dead after all
(PhysOrg.com) -- University of Michigan astronomers examined old galaxies and were surprised to discover that they are still making new stars. The results provide insights into how galaxies evolve with time.
May 30, 2011 |
4.7 / 5 (10) |
6
|
