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Discovery of the first methanol (CH3OH) maser in the Andromeda galaxy (M31)
the first methanol the Andromeda galaxy
2011/1/10
We present the first detection of a 6.7 GHz Class II methanol (CH3OH) maser in the Andromeda galaxy (M31). The CH3OH maser was found in a Very Large Array (VLA) survey during the fall of 2009. We have...
Discovery of a broad O VIII Ly alpha line in the ultra-compact X-ray binary 4U 1543-624
accretion accretion discs binaries-X-rays individual 4U 1543-624
2010/11/15
We report the discovery of a broad emission feature at ∼ 0.7 keV in the spectra of the ultracompact X-ray binary 4U 1543-624, obtained with the high-resolution spectrographs of the
XMM-Newton a...
Dissecting the Moth: Discovery of an off-centered ring in the HD 61005 debris disk with high-resolution imaging
circumstellar matter — planetary systems protoplanetary disks — Techniques
2010/11/15
The debris disk known as “The Moth” is named after its unusually asymmetric surface brightness distribution. It is located around the ∼90Myr old G8V star HD 61005 at 34.5 pc and has previously b...
During their infancy, stars are well known to expel matter violently in the form of well-defined,collimated outflows. A fairly unique exception is found in the Orion BN/KL star-forming region where a ...
Discovery of a QPO in the X-ray pulsar 1A 1118-615: correlated spectral and aperiodic variability
X-rays binaries — pulsars individual 1A 1118-615
2010/11/10
Aims. Our goal is to investigate the X-ray timing and spectral variability of the high-mass X-ray binary 1A 1118-615 during a type-II outburst.
A note on the discovery of a 2M_\odot pulsar
dense matter elementary particles pulsars general —stars neutron
2010/11/10
It is conventionally thought that the state equation of dense matter softens and thus cannot result in high maximum mass if pulsars are quark stars, and that a recently discovered 2M⊙ pulsar (PSR J161...
The Sloan Bright Arcs Survey : Discovery of Seven New Strongly Lensed Galaxies from z=0.66-2.94
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2011/1/5
We report the discovery of seven new, very bright gravitational lens systems from our ongoing gravitational lens search, the Sloan Bright Arcs Survey (SBAS). Two of the systems are confirmed to have h...
The B0.2 V magnetic star tau Sco stands out from the larger population of massive magnetic OB stars due to its remarkable, superionized wind, apparently related to its peculiar magnetic field - a fiel...
I report the discovery of two new Galactic Wolf-Rayet stars in Circinus via detection of their C, N and He Near-Infrared emission lines, using ESO-NTT-SOFI archival data. The H- and K-band spectra of ...
Resolved Spectroscopy of M Dwarf/L Dwarf Binaries. IV. Discovery of an M9 + L6 BInary Separated by Over 100 AU
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/27
We report the discovery of a faint L6 \pm 1 companion to the previously known M9 dwarf, 2MASS J01303563-4445411, based on our near-infrared imaging and spectroscopic observations with the 3m Infrared ...
The Search for the Sources of the Cosmic Rays One Century after their Discovery
High Energy Astrophysical Phenomena (astro-ph.HE)
2010/12/23
Despite their discovery potential touching a wide range of science, construction of TeV gamma-ray telescopes, Auger, IceCube and a suite of other particle astrophysics experiments has been largely mot...
Discovery of the 2001 outburst of wz sagittae。
The “Ghost Shell”：Discovery of the Forward Shock from Colliding Winds about Eta Carinae
Forward Shock Colliding Winds Eta Carinae
2009/6/15
The “Ghost Shell”：Discovery of the Forward Shock from Colliding Winds about Eta Carinae。
Space Shuttle Discovery Set for December 7 Launch（图）
Space Shuttle complex power cooling systems
2006/12/4
November 30, 2006，In a unanimous recommendation by NASA management, the next Space Shuttle flight to the International Space Station (ISS) is set for December 7. Commander Mark Polansky and his six cr...
2006-11-15，NASA recently selected concept studies for missions that would return a sample of an enigmatic asteroid, probe the chemistry of Venus' atmosphere and reveal the interior structure and histo...