14.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.5k papers
- European Southern ObservatoryCL1.8k papers
- Heidelberg UniversityDE1.5k papers
- California Institute of TechnologyUS1.5k papers
- Leiden UniversityNL1.4k papers
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- Space Telescope Science InstituteUS1.2k papers
- Max Planck Institute for Extraterrestrial PhysicsDE1.1k papers
- University of ArizonaUS1.1k papers
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- University of CambridgeGB989 papers
- National Institute for AstrophysicsIT971 papers
263 papers · 1 filter
Assessment of Stellar Stratification in Three Young Star Clusters in the Large Magellanic Cloud
Dimitrios A. Gouliermis, Dougal Mackey, Yu Xin +1
(abridged) We present a comprehensive study of stellar stratification in young star clusters in the Large Magellanic Cloud (LMC). We apply our recently developed effective radius m…
Evolutionary Signatures in the Formation of Low-Mass Protostars. II. Towards Reconciling Models and Observations
Michael M. Dunham, Neal J. Evans, Susan Terebey +2
A long-standing problem in low-mass star formation is the "luminosity problem," whereby protostars are underluminous compared to the accretion luminosity expected both from theoret…
Direct evidence of dust growth in L183 from MIR light scattering
J. Steinacker, L. Pagani, A. Bacmann +1
Theoretical arguments suggest that dust grains should grow in the dense cold parts of molecular clouds. Evidence of larger grains has so far been gathered in near/mid infrared exti…
Rest-frame ultraviolet spectrum of the gravitationally lensed galaxy `the 8 o'clock arc': stellar and interstellar medium properties
M. Dessauges-Zavadsky, S. D'Odorico, D. Schaerer +3
We present the first detailed analysis of the rest-frame UV spectrum of the gravitationally lensed Lyman break galaxy (LBG), the `8 o'clock arc'. The spectrum of the 8 o'clock arc…
The X-ray to optical-UV luminosity ratio of X-ray selected Type 1 AGN in XMM-COSMOS
E. Lusso, A. Comastri, C. Vignali +29
We present a study of the X-ray to optical properties of a sample of 545 X-ray selected Type 1 AGN, from the XMM-COSMOS survey, over a wide range of redshifts ($0.04<\z<4.25$) and…
Truncated Disks in TW Hya Association Multiple Star Systems
Sean M. Andrews, Ian Czekala, D. J. Wilner +3
We present high angular resolution (down to 0.3" = 13 AU in diameter) Submillimeter Array observations of the 880 micron (340 GHz) thermal continuum emission from circumstellar dus…
Protostellar collapse: radiative and magnetic feedbacks on small scale fragmentation
B. Commercon, P. Hennebelle, E. Audit +2
It is established that both radiative transfer and magnetic field have a strong impact on the collapse and the fragmentation of prestellar dense cores, but no consistent calculatio…
The Detection of Anomalous Dust Emission in the Nearby Galaxy NGC 6946
E. J. Murphy, G. Helou, J. J. Condon +6
We report on the Ka-band (26-40 GHz) emission properties for 10 star-forming regions in the nearby galaxy NGC 6946. From a radio spectral decomposition, we find that the 33 GHz flu…
Acceleration and collimation of relativistic MHD disk winds
O. Porth, C. Fendt
We perform axisymmetric relativistic magnetohydrodynamic (MHD) simulations to investigate the acceleration and collimation of jets and outflows from disks around compact objects. T…
A Two-Colour CCD Survey of the North Celestial Cap: I. The Method
Evgeny Gorbikov, Noah Brosch, Cristina Afonso
We describe technical aspects of an astrometric and photometric survey of the North Celestial Cap (NCC), from the Pole (DEC=90 deg) to DEC=80 deg, in support of the TAUVEX mission.…
Stellar Ages and Metallicities of Central and Satellite Galaxies: Implications for Galaxy Formation and Evolution
Anna Pasquali, Anna Gallazzi, Fabio Fontanot +4
Using a large SDSS galaxy group catalogue, we study how the stellar ages and metallicities of central and satellite galaxies depend on stellar mass and halo mass. We find that sate…
Bipolar jets produced by a spectroscopic binary
Reinhard Mundt, Catrina M. Hamilton, William Herbst +2
We present evidence that the spectroscopically identified bipolar jets of the pre-main sequence binary KH 15D are a common product of the whole binary system, rather than being lau…
A new concept for the combination of optical interferometers and high-resolution spectrographs
S. Albrecht, A. Quirrenbach, R. N. Tubbs +1
The combination of high spatial and spectral resolution in optical astronomy enables new observational approaches to many open problems in stellar and circumstellar astrophysics. H…
Ruling out Stellar Companions and Resolving the Innermost Regions of Transitional Disks with the Keck Interferometer
Jorg-Uwe Pott, Marshall D. Perrin, Elise Furlan +3
With the Keck Interferometer, we have studied at 2 um the innermost regions of several nearby, young, dust depleted "transitional" disks. Our observations target five of the six cl…
CARMENES: Calar Alto high-Resolution search for M dwarfs with Exo-earths with a Near-infrared Echelle Spectrograph
A. Quirrenbach, P. J. Amado, H. Mandel +55
CARMENES, Calar Alto high-Resolution search for M dwarfs with Exo-earths with a Near-infrared Echelle Spectrograph, is a study for a next-generation instrument for the 3.5m Calar A…
The velocity distribution of nearby stars from Hipparcos data II. The nature of the low-velocity moving groups
Jo Bovy, David W. Hogg
The velocity distribution of nearby stars contains many "moving groups" that are inconsistent with the standard assumption of an axisymmetric, time-independent, and steady-state Ga…
High-resolution CO and radio imaging of z~2 ULIRGs: extended CO structures, and implications for the universal star formation law
M. S. Bothwell, S. C. Chapman, L. Tacconi +14
We present high spatial resolution (0.4", ~3.5 kpc) PdBI interferometric data on three ultra-luminous infrared galaxies (ULIRGs) at z~2: two submillimetre galaxies and one submilli…
Sky coverage for Layer Oriented MCAO: a detailed analytical and numerical study
Carmelo Arcidiacono, Emiliano Diolaiti, Roberto Ragazzoni +2
One of the key-points for the future developments of the multiconjugate adaptive optics for the astronomy is the availability of the correction for a large fraction of the sky. The…
Probing the evolution of molecular cloud structure: From quiescence to birth
J. Kainulainen, H. Beuther, T. Henning +1
Aims: We derive the probability density functions (PDFs) of column density for a complete sample of prominent molecular cloud complexes closer than 200 pc. Methods: We derive near-…
Obscuring and feeding supermassive black holes with evolving nuclear star clusters
M. Schartmann, A. Burkert, M. Krause +3
Recently, high resolution observations with the help of the near-infrared adaptive optics integral field spectrograph SINFONI at the VLT proved the existence of massive and young n…
The Stellar Population of h and chi Persei: Cluster Properties, Membership, and the Intrinsic Colors and Temperatures of Stars
Thayne Currie, Jesus Hernandez, Jonathan Irwin +6
(Abridged) From photometric observations of 47,000 stars and spectroscopy of 11,000 stars, we describe the first extensive study of the stellar population of the famo…
A Multiwavelength Study of a Sample of 70 micron Selected Galaxies in the COSMOS Field I: Spectral Energy Distributions and Luminosities
Jeyhan S. Kartaltepe, D. B. Sanders, E. Le Floc'h +26
We present a large robust sample of 1503 reliable and unconfused 70microm selected sources from the multiwavelength data set of the Cosmic Evolution Survey (COSMOS). Using the Spit…
Environment of MAMBO galaxies in the COSMOS field
Manuel Aravena, Frank Bertoldi, Chris L. Carilli +9
Submillimeter galaxies (SMG) represent a dust-obscured high-redshift population undergoing massive star formation activity. Their properties and space density have suggested that t…
Three intermediate-mass YSOs with different properties emerging from the same natal cloud in IRAS 00117+6412
Aina Palau, A. Sanchez-Monge, G. Busquet +5
We observed with the VLA, PdBI, and SMA the centimeter and millimeter continuum, N2H+(1-0), and CO(2-1) emission associated with a dusty cloud harboring a nascent cluster with inte…