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VIMOS Ultra-Deep Survey (VUDS): Witnessing the Assembly of a Massive Cluster at z~3.3
B. C. Lemaux, O. Cucciati, L. A. M. Tasca +46
Using new spectroscopic observations obtained as part of the VIMOS Ultra-Deep Survey (VUDS), we perform a systematic search for overdense environments in the early universe ()…
Discovery of a rich proto-cluster at z=2.9 and associated diffuse cold gas in the VIMOS Ultra-Deep Survey (VUDS)
O. Cucciati, G. Zamorani, B. C. Lemaux +42
[Abridged] We characterise a massive proto-cluster at z=2.895 that we found in the COSMOS field using the spectroscopic sample of the VIMOS Ultra-Deep Survey (VUDS). This is one of…
Multi-Wavelength SEDs of Herschel Selected Galaxies in the COSMOS Field
Nicholas Lee, D. B. Sanders, Caitlin M. Casey +14
We combine Herschel PACS and SPIRE maps of the full 2 deg^2 COSMOS field with existing multi-wavelength data to obtain template and model-independent optical-to-far-infrared spectr…
The role of galaxy interaction in the SFR-M relation: characterizing morphological properties of Herschel-selected galaxies at 0.2<z<1.5
Chao-Ling Hung, David B. Sanders, Caitlin M. Casey +13
Galaxy interactions/mergers have been shown to dominate the population of IR luminous galaxies (log(LIR)>11.6Lsun) in the local Universe (z<0.25). Recent studies based on the relat…
Newly-quenched galaxies as the cause for the apparent evolution in average size of the population
C. M. Carollo, T. J. Bschorr, A. Renzini +10
Abridged. We use COSMOS to study in a self-consistent way the change in the number densities of quenched early-type galaxies (Q-ETGs) of a given size over the interval 0.2 < z < 1.…
Mass assembly in quiescent and star-forming galaxies since z=4 from UltraVISTA
O. Ilbert, H. J. McCracken, O. Le Fevre +33
We estimate the galaxy stellar mass function and stellar mass density for star-forming and quiescent galaxies with 0.2<z<4. We construct a deep K<24 sample of 220000 galaxies selec…
Physical Conditions in Molecular Clouds in the Arm and Interarm Regions of M51
J. Koda, N. Scoville, T. Hasegawa +10
We report systematic variations in the CO(2-1)/CO(1-0) line ratio (R) in M51. The ratio shows clear evidence for the evolution of molecular gas from the upstream interarm regions,…
Evolution of the Quasar Luminosity Function Over 3 < z < 5 in the COSMOS Survey Field
Daniel Masters, Peter Capak, Mara Salvato +10
We investigate the high-redshift quasar luminosity function (QLF) down to an apparent magnitude of I(AB) = 25 in the Cosmic Evolution Survey (COSMOS). Careful analysis of the exten…
Deep near-infrared spectroscopy of passively evolving galaxies at z>1.4
M. Onodera, A. Renzini, M. Carollo +21
[Abridged] We present the results of new near-IR spectroscopic observations of passive galaxies at z>1.4 in a concentration of BzK-selected galaxies in the COSMOS field. The observ…
The source counts of submillimetre galaxies detected at 1.1 mm
K. S. Scott, G. W. Wilson, I. Aretxaga +21
The source counts of galaxies discovered at sub-millimetre and millimetre wavelengths provide important information on the evolution of infrared-bright galaxies. We combine the dat…
The Role of Galaxy Interaction in Environmental Dependence of the Star Formation Activity at z~1.2
Yuko Ideue, Yoshiaki Taniguchi, Tohru Nagao +9
In order to understand environmental effects on star formation in high-redshift galaxies, we investigate the physical relationships between the star formation activity, stellar mas…
The Galaxy Stellar Mass Function of X-ray detected groups: environmental dependence of galaxy evolution in the COSMOS survey
S. Giodini, A. Finoguenov, D. Pierini +6
We study the stellar mass distribution for galaxies in 160 X-ray detected groups of 10^13<Log(M_200/M_sun)<2x10^14 and compare it with that of galaxies in the field, to investigate…
On the occupation of X-ray selected galaxy groups by radio AGN since z=1.3
V. Smolcic, A. Finoguenov, G. Zamorani +4
Previous clustering analysis of low-power radio AGN has indicated that they preferentially live in massive groups. The X-ray surveys of the COSMOS field have achieved a sensitivity…
CO(1-0) in z>2 Quasar Host Galaxies: No Evidence for Extended Molecular Gas Reservoirs
Dominik A. Riechers, Christopher L. Carilli, Ronald J. Maddalena +8
We report the detection of CO(1-0) emission in the strongly lensed high-redshift quasars IRAS F10214+4724 (z=2.286), the Cloverleaf (z=2.558), RX J0911+0551 (z=2.796), SMM J04135+1…
Dust-obscured star formation and the contribution of galaxies escaping UV/optical color selections at z~2
L. Riguccini, E. Le Floc'h, O. Ilbert +7
A substantial fraction of the stellar mass growth across cosmic time occurred within dust-enshrouded environments. Yet, the exact amount of star-forming activity that took place in…
Black hole accretion and host galaxies of obscured quasars in XMM-COSMOS
V. Mainieri, A. Bongiorno, A. Merloni +61
We explore the connection between black hole growth at the center of obscured quasars selected from the XMM-COSMOS survey and the physical properties of their host galaxies. We stu…
Accretion Rate and the Physical Nature of Unobscured Active Galaxies
Jonathan R. Trump, Christopher D. Impey, Brandon C. Kelly +15
We show how accretion rate governs the physical properties of a sample of unobscured broad-line, narrow-line, and lineless active galactic nuclei (AGNs). We avoid the systematic er…
The redshift and nature of AzTEC/COSMOS 1: A starburst galaxy at z=4.6
V. Smolcic, P. Capak, O. Ilbert +36
Based on broad/narrow-band photometry and Keck DEIMOS spectroscopy we report a redshift of z=4.64-0.08+0.06 for AzTEC/COSMOS 1, the brightest sub-mm galaxy in the AzTEC/COSMOS fiel…
Decomposing Star Formation and Active Galactic Nucleus with Spitzer Mid-Infrared Spectra: Luminosity Functions and Co-Evolution
Hai Fu, Lin Yan, Nick Scoville +10
We present Spitzer 7-38um spectra for a 24um flux limited sample of galaxies at z~0.7 in the COSMOS field. The detailed high-quality spectra allow us to cleanly separate star forma…
Understanding the shape of the galaxy two-point correlation function at z~1 in the COSMOS field
S. de la Torre, L. Guzzo, K. Kovac +59
We investigate how the shape of the galaxy two-point correlation function as measured in the zCOSMOS survey depends on local environment, quantified in terms of the density contras…
Obscured star-formation and environment in the COSMOS field
C. Feruglio, H. Aussel, E. Le Floc'h +9
We investigate the effects of the environment on star-formation in a sample of massive luminous and ultra-luminous infrared galaxies (LIRGs and ULIRGs) with S(24 micron)>80 uJy and…
The XMM-Newton Wide-Field Survey in the COSMOS field (XMM-COSMOS): demography and multiwavelength properties of obscured and unobscured luminous AGN
M. Brusa, F. Civano, A. Comastri +64
We report the final optical identifications of the medium-depth (~60 ksec), contiguous (2 deg^2) XMM-Newton survey of the COSMOS field. XMM-Newton has detected ~800 X-ray sources d…
Bars in early- and late-type disks in COSMOS
E. Cameron, C. M. Carollo, P. Oesch +20
We investigate the (large-scale) bar fraction in a mass-complete sample of M > 10^10.5 Msun disk galaxies at 0.2 < z < 0.6 in the COSMOS field. The fraction of barred disks strongl…
The Rise and Fall of Passive Disk Galaxies: Morphological Evolution Along the Red Sequence Revealed by COSMOS
K. Bundy, C. Scarlata, C. M. Carollo +13
The increasing abundance of passive "red-sequence" galaxies since z=1-2 is mirrored by a coincident rise in the number of galaxies with spheroidal morphologies. In this paper, howe…