14.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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- University of CambridgeGB989 papers
- National Institute for AstrophysicsIT971 papers
126 papers · 1 filter
The Orion Nebula in the mid-IR
M. Robberto, S. V. W. Beckwith, N. Panagia +6
We present two wide-field (5'x5'), diffraction limited, broad-band 10 and 20 micron images of the Orion Nebula, plus six 7-13 micron narrow-band images of BN/KL taken at the 3.8m U…
Weak lensing measurements of dark matter halos of galaxies from COMBO-17
M. Kleinheinrich, P. Schneider, H. -W. Rix +8
We present a measurement of mass estimates for dark matter halos around galaxies from the COMBO-17 survey using weak gravitational lensing. COMBO-17 is particularly useful for this…
Effects of dynamical evolution on the distribution of substructures
J. Penarrubia, A. J. Benson
We develop a semi-analytical model that determines the evolution of the mass, position and internal structure of dark matter substructures orbiting in dark matter haloes. We apply…
Discovery of Two Gravitationally Lensed Quasars with Image Separations of 3 Arcseconds from the Sloan Digital Sky Survey
Masamune Oguri, Naohisa Inada, Joseph F. Hennawi +15
We report the discovery of two doubly-imaged quasars, SDSS J100128.61+502756.9 and SDSS J120629.65+433217.6, at redshifts of 1.838 and 1.789 and with image separations of 2.86'' an…
Adaptive Optics Imaging of the AU Microscopii Circumstellar Disk: Evidence for Dynamical Evolution
Stanimir Metchev, Joshua A. Eisner, Lynne A. Hillenbrand +1
We present an H-band image of the light scattered from circumstellar dust around the nearby (10 pc) young M star AU Microscopii (AU Mic, GJ 803, HD 197481), obtained with the Keck…
No cold dust within the supernova remnant Cassiopeia A
O. Krause, S. M. Birkmann, G. H. Rieke +4
A large amount (about three solar masses) of cold (18 K) dust in the prototypical type II supernova remnant Cassiopeia A was recently reported. It was concluded that dust productio…
The Wide Field Imager Lyman-Alpha Search (WFILAS) for Galaxies at Redshift ~5.7: I. A Spatially Compact Lyman-alpha Emitting Galaxy at Redshift 5.721
Eduard Westra, D. Heath Jones, Chris E. Lidman +6
We report the spectroscopic confirmation of a compact \lya emitting galaxy at . A FORS2 spectrum of the source shows a strong asymmetric line with a flux of 5$\times10^{-1…
The Evolution of Early-type Red Galaxies with the GEMS Survey: Luminosity-size and Stellar Mass-size Relations Since z=1
Daniel H. McIntosh, Eric F. Bell, Hans-Walter Rix +14
We combine HST/ACS imaging from the GEMS survey with redshifts and rest-frame quantities from COMBO-17 to study the evolution of morphologically early-type galaxies with red colors…
A recent rebuilding of most spirals ?
F. Hammer, H. Flores, X. Z. Zheng +1
Re-examination of the properties of distant galaxies leads to the evidence that most present-day spirals have built up half of their stellar masses during the last 8 Gyr, mostly du…
Hot Jupiters and Hot Spots: The Short- and Long-term Chromospheric Activity on Stars with Giant Planets
E. Shkolnik, G. A. H. Walker, D. A. Bohlender +2
We monitored the chromospheric activity in the Ca II H & K lines of 13 solar-type stars (including the Sun); 8 of them over three years at the CFHT and 5 in a single run at the VLT…
Millimeter observations and modeling of the AB Aurigae system
D. Semenov, Ya. Pavlyuchenkov, K. Schreyer +3
(Abriged) We present the results of millimeter observations and a suitable chemical and radiative transfer model of the AB Aur (HD 31293) circumstellar disk and surrounding envelop…
Evolution of the infrared luminosity density and star formation history up to z~1: preliminary results from MIPS
E. Le Floc'h, C. Papovich, H. Dole +6
Using deep observations of the Chandra Deep Field South obtained with MIPS at 24mic, we present our preliminary estimates on the evolution of the infrared (IR) luminosity density o…
Halo Mass Function: Low-mass Stars in Deep Fields
Wolfgang Brandner
Deep fields are unique probes of the Galactic halo. With a limiting magnitude of, e.g., I = 30 mag, all stars down to the hydrogen-burning limit are detected out to distances of 10…
Did most present-day spirals form during the last 8 Gyrs? A formation history with violent episodes revealed by panchromatic observations
F. Hammer, H. Flores, D. Elbaz +3
(abridged) Studies of distant galaxies have shown that ellipticals and large spirals were already in place 8 Gyr ago, leading to a very modest recent star formation in intermediate…
ISO observations of 3 - 200 micron emission by three dust populations in an isolated local translucent cloud
M. G. Rawlings, M. Juvela, K. Mattila +2
We present ISOPHOT spectrophotometry of three positions within the isolated high latitude cirrus cloud G 300.2 - 16.8, spanning from the near- to far-infrared. The positions exhibi…
The Initial Mass Function toward the low-mass end in the Large Magellanic Cloud with HST/WFPC2 Observations
D. Gouliermis, W. Brandner, Th. Henning
We present V and I equivalent HST/WFPC2 photometry of two areas in the Large Magellanic Cloud: The southern part of the stellar association LH 52, located on the western edge of th…
Cosmological weak lensing with the HST GEMS survey
Catherine Heymans, Michael L. Brown, Marco Barden +16
We present our cosmic shear analysis of GEMS, one of the largest wide-field surveys ever undertaken by the Hubble Space Telescope. Imaged with the Advanced Camera for Surveys (ACS)…
Evolution of Cold Circumstellar Dust Around Solar-Type Stars
John M. Carpenter, Sebastian Wolf, Katharina Schreyer +2
We present submillimeter (CSO 350um) and millimeter (SEST 1.2 mm, OVRO 3 mm) photometry for 125 solar-type stars from the FEPS Spitzer Legacy program that have masses between ~0.5…
Large scale inhomogeneity and local dynamical friction
A. Just, J. Penarrubia
We investigate the effect of a density gradient on Chandrasekhar's dynamical friction formula based on the method of 2-body encounters in the local approximation. We apply these ge…
3D Continuum radiative transfer in complex dust configurations around young stellar objects and active nuclei II. 3D Structure of the dense molecular cloud core Rho Oph D
J. Steinacker, A. Bacmann, Th. Henning +2
Constraints on the density and thermal 3D structure of the dense molecular cloud core Rho Oph D are derived from a detailed 3D radiative transfer modeling. Two ISOCAM images at 7 a…
The radio-ultraviolet spectral energy distribution of the jet in 3C273
S. Jester, H. -J. Roeser, K. Meisenheimer +1
We present deep VLA and HST observations of the large-scale jet in 3C 273 matched to 0.3" resolution. The observed spectra show a significant flattening in the infrared-ultraviolet…
A comprehensive model for the Monoceros tidal stream
J. Penarrubia, D. Martinez-Delgado, H. W. Rix +7
We have compiled an extensive dataset on potential parts of the Monoceros tidal stream and performed an exhaustive survey of dwarf galaxy semi-analytic orbits in order to constrain…
Microarcsecond astrometry with Gaia: the solar system, the Galaxy and beyond
C. A. L. Bailer-Jones
Gaia is an all sky, high precision astrometric and photometric satellite of the European Space Agency (ESA) due for launch in 2010-2011. Its primary mission is to study the composi…
The European Large Area ISO Survey VIII: 90-micron final analysis and source counts
Ph. Heraudeau, S. Oliver, C. del Burgo +17
We present a re--analysis of the European Large Area ISO Survey (ELAIS) 90mum observations carried out with ISOPHOT, an instrument on board the ESA's Infrared Space Observatory (IS…