搜索结果: 1-15 共查到“天体物理学其他学科 Galaxy”相关记录18条 . 查询时间(0.156 秒)
Tsunami of Stars and Gas Produces Dazzling Eye-shaped Feature in Galaxy
Tsunami Stars Gas Dazzling Eye-shaped Galaxy
2016/11/29
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered a tsunami of stars and gas that is crashing midway through the disk of a spiral galaxy known as IC 2163. This ...
WVU astrophysicists part of gravitational wave search that provides insights into galaxy evolution and mergers
WVU astrophysicists gravitational wave search galaxy evolution and mergers
2016/4/13
On the heels of their participation in the historic research that resulted in the detection of gravitational waves, West Virginia University astrophysicists continue to plow new ground ...
Dark matter is called "dark" for a good reason. Although they outweigh particles of regular matter by more than a factor of 5, particles of dark matter are elusive. Their existence is inferred by thei...
Gas and dust in a submillimeter galaxy at z = 4.24 from the Herschel ATLAS
submillimeter galaxy Herschel ATLAS
2011/10/9
We report ground-based follow-up observations of the exceptional source, ID141, one the brightest sources detected so far in the H-ATLAS cosmological survey. ID141 was observed using the IRAM 30-meter...
Galaxy Pairs in the Sloan Digital Sky Survey - III: Evidence of Induced Star Formation from Optical Colours
Galaxy Pairs the Sloan Digital Sky Survey - III
2011/1/11
We have assembled a large, high quality catalogue of galaxy colours from the Sloan Digital Sky Survey Data Release 7, and have identified 21,347 galaxies in pairs spanning a range of projected separat...
We present results for X-ray point sources in the Sc galaxy NGC 2276, obtained by analyzing Chandra data. The galaxy is known to be very active in many wavelengths, possibly due to gravitational inter...
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...
MUSTANG High Angular Resolution Sunyaev-Zel'dovich Effect Imaging of Sub-Structure in Four Galaxy Clusters
MUSTANG High Angular Resolution Sunyaev-Zel'dovich Effect Imaging
2011/1/11
We present 10" to 18" images of four massive clusters of galaxies through the Sunyaev-Zel'dovich Effect (SZE). These measurements, made at 90~GHz with the MUSTANG receiver on the Green Bank Telescope ...
A shock front in the merging galaxy cluster Abell 754: X-ray and radio observations
the merging galaxy cluster Abell 754 X-ray radio observations
2011/1/11
We present new Chandra X-ray and Giant Meterwave Radio Telescope (GMRT) radio observations of the nearby merging galaxy cluster Abell 754. Our X-ray data confirm the presence of a shock front by obtai...
Bound and unbound substructures in Galaxy-scale Dark Matter haloes
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/29
We analyse the coarse-grained phase-space structure of the six Galaxy-scale dark matter haloes of the Aquarius Project using a state-of-the-art 6D substructure finder. Within r_50, we find that about ...
On the fairness of the main galaxy sample of SDSS
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/29
In order to measure fairness of the main galaxy sample of SDSS, series of flux-limited and volume-limited samples are constructed from SDSS data releases DR4, DR6 and DR7 for analysis with various sta...
The spiral structure of the Galaxy revealed by CS sources and evidence for the 4:1 resonance
Galaxy Astrophysics (astro-ph.GA)
2010/12/28
We present a map of the spiral structure of the Galaxy, as traced by molecular CS emission associated with IRAS sources which are believed to be compact HII regions. The CS line velocities are used to...
Importance of far-infrared mapping in a spiral galaxy: AKARI observation of M81
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/27
The importance of the far-infrared (FIR) mapping is demonstrated for a face-on spiral galaxy, M81, by analyzing its imaging data at 65, 90, and 140 {\mu}m taken by AKARI. Basic products are the dust t...
Submillimeter Array Identification of the Millimeter-Selected Galaxy SSA22-AzTEC1: A Protoquasar in a Protocluster?
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Galaxy Astrophysics (astro-ph.GA)
2010/12/27
We present results from Submillimeter Array (SMA) 860-micron sub-arcsec astrometry and multiwavelength observations of the brightest millimeter (S_1.1mm = 8.4 mJy) source, SSA22-AzTEC1, found near the...
New insight on galaxy structure from GALPHAT I. Motivation, methodology, and benchmarks for Sersic models
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Instrumentation and Methods for Astrophysics (astro-ph.IM)
2010/12/27
We introduce a new galaxy image decomposition tool, GALPHAT (GALaxy PHotometric ATtributes), to provide full posterior probability distributions and reliable confidence intervals for all model paramet...