Now showing items 1-10 of 271
The JCMT Legacy Survey of the Gould Belt: a first look at Serpens with HARP
The Gould Belt Legacy Survey on the James Clerk Maxwell Telescope's has observed a region of 260 arcmin2 in 12CO J = 3 -> 2 emission, and a 190 arcmin2 subset of this in 13CO and C18O towards the Serpens molecular cloud. ...
Stellar x-ray sources in the chandra cosmos survey
We present an analysis of the X-ray properties of a sample of solar- and late-type field stars identified in the Chandra Cosmic Evolution Survey (COSMOS), a deep (160 ks) and wide (∼0.9 deg ) extragalactic survey. The ...
Fluid-borne Particle Detector
Stellar population variations in the Milky Way's stellar halo
If the stellar halos of disk galaxies are built up from the disruption of dwarf galaxies, models predict highly structured variations in the stellar populations within these halos. We test this prediction by studying the ...
Investigating the merger origin of early-type galaxies using ultra-deep optical images
The mass assembly of galaxies leaves various imprints on their surroundings, such as shells, streams and tidal tails. The frequency and properties of these fine structures depend on the mechanism driving the mass assembly: ...
FIELD AND GLOBULAR CLUSTER LOW-MASS X-RAY BINARIES IN NGC 4278
We report a detailed spectral analysis of the population of low-mass X-ray binaries (LMXBs) detected in the elliptical galaxy NGC 4278 with Chandra. Seven luminous sources were studied individually, four in globular clusters ...
Environmental effects in galaxy clusters : Infalling groups in Abell 85 and 1367
We are carrying out a multifrequency survey of late type galaxies in nearby clusters with the aim to investigate the effects exerted by both the very local and the global cluster environments. We report new VLA-HI images ...
Molecular gas and star formation in local early-type galaxies
The molecular gas content of local early-type galaxies is constrained and discussed in relation to their evolution. First, as part of the ATLAS survey, we present the first complete, large (260 objects), volume-limited ...
The X-ray spectra of the luminous LMXBs in NGC 3379 : field and globular cluster sources
From a deep multi-epoch Chandra observation of the elliptical galaxy NGC 3379 we report the spectral properties of eight luminous LMXBs (L-X > 1.2 x 10(38) erg s(-1)). We also present a set of spectral simulations, produced ...
SED fitting of nearby galaxies in the Herschel Reference Survey
(Societe Francaise d'Astronomie et d'Astrophysique, 2010-12-01)
We compute UV to radio continuum spectral energy distributions of 51 nearby galaxies recently observed with SPIRE onboard Herschel and present infrared colours (in the 25-500 μm spectral range). SPIRE data of normal galaxies ...