Search Publications
The Cosmic Evolution Survey (COSMOS): Overview
Kneib, J. -P.; Aussel, H.; Sanders, D. B. +19 more
The Cosmic Evolution Survey (COSMOS) is designed to probe the correlated evolution of galaxies, star formation, active galactic nuclei (AGNs), and dark matter (DM) with large-scale structure (LSS) over the redshift range z>0.5-6. The survey includes multiwavelength imaging and spectroscopy from X-ray-to-radio wavelengths covering a 2 deg2<…
zCOSMOS: A Large VLT/VIMOS Redshift Survey Covering 0 < z < 3 in the COSMOS Field
Smail, I.; Finoguenov, A.; Kneib, J. -P. +74 more
zCOSMOS is a large-redshift survey that is being undertaken in the COSMOS field using 600 hr of observation with the VIMOS spectrograph on the 8 m VLT. The survey is designed to characterize the environments of COSMOS galaxies from the 100 kpc scales of galaxy groups up to the 100 Mpc scale of the cosmic web and to produce diagnostic information o…
The First Release COSMOS Optical and Near-IR Data and Catalog
Kneib, J. -P.; Aussel, H.; Sanders, D. B. +55 more
We present imaging data and photometry for the COSMOS survey in 15 photometric bands between 0.3 and 2.4 µm. These include data taken on the Subaru 8.3 m telescope, the KPNO and CTIO 4 m telescopes, and the CFHT 3.6 m telescope. Special techniques are used to ensure that the relative photometric calibration is better than 1% across the field…
The COSMOS Survey: Hubble Space Telescope Advanced Camera for Surveys Observations and Data Processing
Kneib, J. -P.; Aussel, H.; Giavalisco, M. +11 more
We describe the details of the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) Wide Field Channel (WFC) observations of the COSMOS field, including the data calibration and processing procedures. We obtained a total of 583 orbits of HST ACS/WFC imaging in the F814W filter, covering a field that is 1.64 deg2 in area, the l…
Self-consistent Coronal Heating and Solar Wind Acceleration from Anisotropic Magnetohydrodynamic Turbulence
Cranmer, Steven R.; van Ballegooijen, Adriaan A.; Edgar, Richard J.
We present a series of models for the plasma properties along open magnetic flux tubes rooted in solar coronal holes, streamers, and active regions. These models represent the first self-consistent solutions that combine (1) chromospheric heating driven by an empirically guided acoustic wave spectrum; (2) coronal heating from Alfvén waves that hav…
COSMOS: Hubble Space Telescope Observations
Kneib, J. -P.; Aussel, H.; Daddi, E. +52 more
The Cosmic Evolution Survey (COSMOS) was initiated with an extensive allocation (590 orbits in Cycles 12-13) using the Hubble Space Telescope (HST) for high-resolution imaging. Here we review the characteristics of the HST imaging with the Advanced Camera for Surveys (ACS) and parallel observations with NICMOS and WFPC2. A square field (1.8 deg
Weak Gravitational Lensing with COSMOS: Galaxy Selection and Shape Measurements
Koekemoer, Anton M.; Ellis, Richard S.; Leauthaud, Alexie +14 more
With a primary goal of conducting precision weak-lensing measurements from space, the COSMOS survey has imaged the largest contiguous area observed by Hubble Space Telescope to date, using the Advanced Camera for Surveys (ACS). This is the first paper in a series in which we describe our strategy for addressing the various technical challenges in …
The XMM-Newton Wide-Field Survey in the COSMOS Field. I. Survey Description
Finoguenov, A.; Sanders, D. B.; Fiore, F. +21 more
We present the first set of XMM-Newton EPIC observations in the 2 deg2 COSMOS field. The strength of the COSMOS project is the unprecedented combination of a large solid angle and sensitivity over the whole multiwavelength spectrum. The XMM-Newton observations are very efficient in localizing and identifying active galactic nuclei (AGNs…
The ACS Virgo Cluster Survey. XII. The Luminosity Function of Globular Clusters in Early-Type Galaxies
Jordán, Andrés; Tonry, John L.; Côté, Patrick +7 more
We analyze the luminosity function of the globular clusters (GCs) belonging to the early-type galaxies observed in the ACS Virgo Cluster Survey. We have obtained maximum likelihood estimates for a Gaussian representation of the globular cluster luminosity function (GCLF) for 89 galaxies. We have also fit the luminosity functions with an ``evolved …
The Third IBIS/ISGRI Soft Gamma-Ray Survey Catalog
Götz, D.; Hill, A. B.; Walter, R. +20 more
In this paper we report on the third soft gamma-ray source catalog obtained with the IBIS/ISGRI gamma-ray imager on board the INTEGRAL satellite. The scientific data set is based on more than 40 Ms of high-quality observations performed during the first 3.5 yr of Core Program and public IBIS/ISGRI observations. Compared to previous IBIS/ISGRI surv…