News tagged with astrophysical journal letters
New images capture 'stealth merger' of dwarf galaxies
New images of a nearby dwarf galaxy have revealed a dense stream of stars in its outer regions, the remains of an even smaller companion galaxy in the process of merging with its host. The host galaxy, known ...
Feb 08, 2012 |
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Cosmic research picked in breakthroughs of 2011
(PhysOrg.com) -- Astronomers from the Dark Cosmology Center at the Niels Bohr Institute have developed a groundbreaking method for measuring long distances in the universe using light from quasars. Quasars ...
Dec 19, 2011 |
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First low-mass star detected in globular cluster
Even the most powerful high-tech telescopes are barely able to record remote low-mass and thus faint stars. Together with researchers from Poland and Chile, an astrophysicist from the University of Zurich ...
Dec 15, 2011 |
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Fermi shows that Tycho's star shines in gamma rays
(PhysOrg.com) -- In early November 1572, observers on Earth witnessed the appearance of a "new star" in the constellation Cassiopeia, an event now recognized as the brightest naked-eye supernova in more than ...
Dec 13, 2011 |
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Ancient stars shed light on the prehistory of the Milky Way
a kind of stellar fossils in the outer reaches of our galaxy, contain abnormally large amounts of heavy elements like gold, platinum and uranium. Where these large amounts came from has been a mystery for ...
Nov 15, 2011 |
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Giant planet ejected from the solar system
(PhysOrg.com) -- Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to an article recently published in ...
Nov 10, 2011 |
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Clearing the cosmic fog of the early universe: Massive stars may be responsible
The space between the galaxies wasn't always transparent. In the earliest times, it was an opaque, dense fog. How it cleared is an important question in astronomy. New observational evidence from the University ...
Oct 12, 2011 |
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WISE mission captures black hole's wildly flaring jet
(PhysOrg.com) -- Astronomers using NASA's Wide-field Infrared Survey Explorer (WISE) have captured rare data of a flaring black hole, revealing new details about these powerful objects and their blazing jets. ...
Sep 21, 2011 |
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Neutron star blows away models for thermonuclear explosions
(PhysOrg.com) -- Amsterdam astronomers have discovered a neutron star that confounds existing models for thermonuclear explosions in such extreme objects. In the case of the accreting pulsar IGR J17480-2446, ...
Sep 14, 2011 |
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SOHO watches a comet fading away
On Nov. 4, 2010, NASA's EPOXI spacecraft came within 450 miles of Comet Hartley 2, a small comet not even a mile in diameter, which takes about six and a half years to orbit the sun. Designated officially ...
Space & Earth / Space Exploration
Jul 28, 2011 |
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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 |
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Nearby galaxy boasts two monster black holes, both active
(PhysOrg.com) -- A study using NASA's Swift satellite and the Chandra X-ray Observatory has found a second supersized black hole at the heart of an unusual nearby galaxy already known to be sporting one.
Jun 10, 2011 |
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Centuries-old math formula helps map galaxy clusters
(PhysOrg.com) -- Across the universe, galaxies band together in clusters so huge it can take 10 million years for light to travel from one end of a galaxy cluster to the other. Probing these metropolises is ...
Jun 09, 2011 |
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Solar Dynamics Observatory catches 'surfer' waves on the Sun (w/ video)
(PhysOrg.com) -- Cue the surfing music. Scientists have spotted the iconic surfer's wave rolling through the atmosphere of the sun. This makes for more than just a nice photo-op: the waves hold clues as to ...
Space & Earth / Space Exploration
Jun 07, 2011 |
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Spitzer sees crystal 'rain' in outer clouds of infant star
(PhysOrg.com) -- Tiny crystals of a green mineral called olivine are falling down like rain on a burgeoning star, according to observations from NASA's Spitzer Space Telescope.
May 27, 2011 |
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Astrophysical Journal
The Astrophysical Journal (abbreviated to ApJ or Astrophys. J.) is a scientific journal covering astronomy and astrophysics. It was founded in 1895 by the American astronomers George Ellery Hale and James E. Keeler. As of October 2006 it published three 500-page issues per month.
Since 1953, The Astrophysical Journal Supplement Series (often abbreviated to ApJS) has been published in conjunction with The Astrophysical Journal. It aims to supplement the material in the Journal. As of October 2006 it published six volumes per year, with two 280-page issues per volume. The journal and the supplement series were both published by the University of Chicago Press for the American Astronomical Society. In January 2009 publication was transferred to Institute of Physics Publishing, following the move of the society's Astronomical Journal in 2008. The reason for the changes were given by the Society as the increasing financial demands of the Press.
The Astrophysical Journal Letters (ApJL) is Part 2 of The Astrophysical Journal — a peer-reviewed express scientific journal.
For more information about Astrophysical Journal, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
