activity
20022026
most citedThe Chandra COSMOS Legacy survey: optical/IR identifications

338 citations · 2.7k across the 27 of their papers we have counts for

collaborators

27 papers

astro-ph.GA2026

Cosmic Evolution Survey: LOFAR 144 MHz imaging of the COSMOS field

E. Vardoulaki, T. Shimwell, M. J. Hardcastle +18

We present the first deep, targeted LOFAR 144 MHz source catalogue of the COSMOS field, together with the first 144 MHz source counts in this field. The data comprise 48 h of obser…

astro-ph.GA2025★ 3 cited

Extreme AGN feedback in the fossil galaxy group SDSSTG 4436

D. Eckert, F. Gastaldello, L. Lovisari +20

Supermassive black hole feedback is the currently favoured mechanism to regulate the star formation rate of galaxies and prevent the formation of ultra-massive galaxies ($M_\star>1…

astro-ph.GA2023★ 5 cited

Large-scale clustering of buried X-ray AGN: Trends in AGN obscuration and redshift evolution

Akke Viitanen, Viola Allevato, Alexis Finoguenov +4

In order to test active galactic nucleus (AGN) unification and evolutionary models, we measured the AGN clustering properties as a function of AGN obscuration defined in terms of h…

astro-ph.GA2022★ 18 cited

A galaxy group candidate at z~3.7 in the COSMOS field

Nikolaj Bjerregaard Sillassen, Shuowen Jin, Georgios E. Magdis +12

We report a galaxy group candidate HPC1001 at in the COSMOS field. This structure was selected as a high galaxy overdensity at in the COSMOS2020 catalog. It con…

astro-ph.GA2018★ 12 cited

Deciphering the activity and quiescence of high-redshift cluster environments: ALMA observations of ClJ1449+0856 at z=2

V. Strazzullo, R. T. Coogan, E. Daddi +13

We present ALMA observations of the 870m continuum and CO(4-3) line emission in the core of the galaxy cluster ClJ1449+0856 at z=2, a NIR-selected, X-ray detected system in the…

astro-ph.CO2017★ 52 cited

LoCuSS: The infall of X-ray groups onto massive clusters

C. P. Haines, A. Finoguenov, G. P. Smith +10

Galaxy clusters are expected to form hierarchically in a LCDM universe, growing primarily through mergers with lower mass clusters and the continual accretion of group-mass halos.…

astro-ph.GA2016★ 42 cited

The red sequence at birth in the galaxy cluster ClJ1449+0856 at z=2

V. Strazzullo, E. Daddi, R. Gobat +10

We use HST/WFC3 imaging to study the red population in the IR-selected, X-ray detected, low-mass cluster Cl J1449+0856 at z=2, one of the few bona-fide established clusters discove…

astro-ph.GA2015★ 338 cited

The Chandra COSMOS Legacy survey: optical/IR identifications

S. Marchesi, F. Civano, M. Elvis +27

We present the catalog of optical and infrared counterparts of the Chandra COSMOS-Legacy Survey, a 4.6 Ms Chandra program on the 2.2 square degrees of the COSMOS field, combination…

astro-ph.CO2015★ 121 cited

LoCuSS: Testing hydrostatic equilibrium in galaxy clusters

G. P. Smith, P. Mazzotta, N. Okabe +17

We test the assumption of hydrostatic equilibrium in an X-ray luminosity selected sample of 50 galaxy clusters at from the Local Cluster Substructure Survey (LoCuSS).…

astro-ph.GA2015★ 255 cited

LoCuSS: The slow quenching of star formation in cluster galaxies and the need for pre-processing

C. P. Haines, M. J. Pereira, G. P. Smith +8

We present a study of the spatial distribution and kinematics of star-forming galaxies in 30 massive clusters at 0.15<z<0.30, combining wide-field Spitzer 24um and GALEX NUV imagin…

cs.DL2015★ 25 cited

Research Data Explored: Citations versus Altmetrics

Isabella Peters, Peter Kraker, Elisabeth Lex +2

The study explores the citedness of research data, its distribution over time and how it is related to the availability of a DOI (Digital Object Identifier) in Thomson Reuters' DCI…

astro-ph.CO2013★ 17 cited

Suzaku study of gas properties along filaments of A2744

Y. Ibaraki, N. Ota, H. Akamatsu +2

Context: We present the results of Suzaku observations of a massive galaxy cluster A2744, which is an active merger at . Aims: By using long X-ray observations of A2744, w…

astro-ph.CO2013★ 138 cited

LoCuSS: The steady decline and slow quenching of star formation in cluster galaxies over the last four billion years

C. P. Haines, M. J. Pereira, G. P. Smith +8

We present an analysis of the levels and evolution of star formation activity in a representative sample of 30 massive galaxy clusters at 0.15<z<0.30 from the Local Cluster Substru…

astro-ph.CO2013★ 138 cited

Galaxy evolution in overdense environments at high redshift: passive early-type galaxies in a cluster at redshift 2

V. Strazzullo, R. Gobat, E. Daddi +8

We present a study of galaxy populations in the central region of the IRAC-selected, X-ray detected galaxy cluster Cl J1449+0856 at z=2. Based on a sample of spectroscopic and phot…

astro-ph.CO2013★ 47 cited

Suzaku observations of Abell 1835 outskirts: Deviation from hydrostatic equilibrium

Kazuya Ichikawa, Kyoko Matsushita, Nobuhiro Okabe +12

We present results of four-pointing Suzaku X-ray observations (total ~200 ks) of the intracluster medium (ICM) in the Abell 1835 galaxy cluster (kT ~ 8 keV, z = 0.253) out to the v…

astro-ph.CO2012★ 29 cited

Ripping Apart at the Seams: The Network of Stripped Gas Surrounding M86

S. Ehlert, N. Werner, A. Simionescu +4

We present a new study of the Virgo Cluster galaxies M86, M84, NGC 4338, and NGC 4438 using a mosaic of five separate pointings with XMM-Newton. Our observations allow for robust m…

astro-ph.CO2012★ 99 cited

Cross-correlating cosmic IR and X-ray background fluctuations: evidence of significant black hole populations among the CIB sources

N. Cappelluti, A. Kashlinsky, R. G. Arendt +7

In order to understand the nature of the sources producing the recently uncovered cosmic infrared background (CIB) fluctuations, we study cross-correlations between the fluctuation…

astro-ph.CO2012★ 76 cited

Occupation of X-ray selected galaxy groups by X-ray AGN

V. Allevato, A. Finoguenov, G. Hasinger +12

We present the first direct measurement of the mean Halo Occupation Distribution (HOD) of X-ray selected AGN in the COSMOS field at z < 1, based on the association of 41 XMM and 17…

astro-ph.CO2012★ 136 cited

A filament of dark matter between two clusters of galaxies

Jörg P. Dietrich, Norbert Werner, Douglas Clowe +4

It is a firm prediction of the concordance Cold Dark Matter (CDM) cosmological model that galaxy clusters live at the intersection of large-scale structure filaments. The thread-li…

astro-ph.CO2012★ 26 cited

Quest for COSMOS submillimeter galaxy counterparts using CARMA and VLA: Identifying three high-redshift starburst galaxies

V. Smolcic, F. Navarrete, M. Aravena +16

We report on interferometric observations at 1.3 mm at 2"-3" resolution using the Combined Array for Research in Millimeter-wave Astronomy (CARMA). We identify multi-wavelength cou…

astro-ph.CO2011★ 183 cited

The impact of galaxy interactions on AGN activity in zCOSMOS

J. D. Silverman, P. Kampczyk, K. Jahnke +52

Close encounters between galaxies are expected to be a viable mechanism, as predicted by numerical simulations, by which accretion onto supermassive black holes can be initiated. T…

astro-ph.CO2011★ 147 cited

The XMM-Newton Wide field survey in the COSMOS field: redshift evolution of AGN bias and subdominant role of mergers in triggering moderate luminosity AGN at redshift up to 2.2

V. Allevato, A. Finoguenov, N. Cappelluti +14

We present a study of the redshift evolution of the projected correlation function of 593 X-ray selected AGN with I_AB<23 and spectroscopic redshifts z<4, extracted from the 0.5-2…

astro-ph.CO2010★ 145 cited

The Extended Chandra Deep Field-South Survey: Optical spectroscopy of faint X-ray sources with the VLT and Keck

J. D. Silverman, V. Mainieri, M. Salvato +26

We present the results of a program to acquire high-quality optical spectra of X-ray sources detected in the E-CDF-S and its central area. New spectroscopic redshifts are measured…

astro-ph.CO2009★ 77 cited

The 10k zCOSMOS: morphological transformation of galaxies in the group environment since z~1

K. Kovac, S. J. Lilly, C. Knobel +57

We study the evolution of galaxies inside and outside of the group environment since z=1 using a large well defined set of groups and galaxies from the zCOSMOS-bright redshift surv…