Results 31 to 40 of about 108,440 (263)

On the evolution of environmental and mass properties of strong lens galaxies in COSMOS [PDF]

, 2011
Among the 100 strong lens candidates found in the COSMOS field, 20 with redshifts in the range [0.34,1.13], feature multiple images of background sources.
A. Finoguenov, A. Leauthaud, A. M. Koekemoer, Allam, Anguita, Auger, Bartelmann, Bezanson, Bolton, Bolton, Bruzual, Bundy, C. Faure, C. Knobel, Cabanac, Capak, Capak, Capak, Chae, Chantry, D. Alloin, Dobke, E. Jullo, Elvis, Faure, Faure, Finoguenov, Finoguenov, Gavazzi, Grillo, Hasinger, Hilbert, Hilbert, Ilbert, Ilbert, J.-P. Kneib, Jackson, Jiang, Jullo, K. Bundy, Keeton, Keeton, Kneib, Knobel, Koekemoer, Koopmans, L. A. M. Tasca, Lagattuta, Leauthaud, Lilly, Lilly, Limousin, Limousin, Limousin, Marleau, McCracken, Mobasher, Momcheva, N. Scoville, Napolitano, Natarajan, O. Ilbert, Ofek, Oguri, P. Capak, Ruff, Sanders, Scarlata, Scarlata, Scoville, Simard, T. Anguita, Taniguchi, Tortora, Treu, Treu, Vikhlinin, Wambsganss, Wong   +78 more
core   +4 more sources

High redshift galaxy surveys [PDF]

SPIE Proceedings, 2008
Plenary talk given on 25 June at the SPIE 2008 symposium on "Astronomical Instrumentation" in Marseiile, 10 ...
openaire   +2 more sources

Detection of Evolved High-Redshift Galaxies in Deep NICMOS/VLT Images [PDF]

, 1999
A substantial population of high redshift early-type galaxies is detected in very deep UBVRIJHK images towards the HDF-South. Four elliptical profile galaxies are identified in the redshift range z=1-2, all with very red SEDs, implying ages of >2 Gyrs ...
Binggeli B., Bower R. G., Fontana A., Joseph Silk, Kauffmann G., Lacey C., Narciso Benítez, Piero Rosati, Pozzetti L., Rychard Bouwens, Stiavelli M., Tom Broadhurst, Treu T.   +12 more
core   +2 more sources

The nature of high-redshift galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
Using semi-analytic models of galaxy formation set within the Cold Dark Matter (CDM) merging hierarchy, we investigate several scenarios for the nature of the high-redshift ($z \ga 2$) Lyman-break galaxies (LBGs). We consider a ``collisional starburst'' model in which bursts of star formation are triggered by galaxy-galaxy mergers, and find that a ...
Somerville, Rachel S., Primack, Joel R., Faber, S. M.   +2 more
openaire   +3 more sources

Morphological Evolution and the Ages of Early-Type Galaxies in Clusters [PDF]

, 2001
Morphological and spectroscopic studies of high redshift clusters indicate that a significant fraction of present-day early-type galaxies was transformed from star forming galaxies at ...
Andreon S., Baugh C. M., Bower R. G., Couch W. J., Faber S. M., Fried J. W., Jorgensen I., Kauffmann G., Kauffmann G., Kauffmann G., Kodama T., Lucey J. R., Marijn Franx, Pieter G. van Dokkum, Tinsley B. M., Tytler D., van Dokkum P. G.   +16 more
core   +3 more sources

Galaxy halo occupation at high redshift [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
13 pages, 5 figures, Submitted to MNRAS, minor ...
Bullock, James S., Wechsler, Risa H., Somerville, Rachel S.   +2 more
openaire   +2 more sources

Early Results from GLASS-JWST. IX. First Spectroscopic Confirmation of Low-mass Quiescent Galaxies at z > 2 with NIRISS

The Astrophysical Journal Letters, 2023
How passive galaxies form, and the physical mechanisms which prevent star formation over long timescales, are some of the most outstanding questions in understanding galaxy evolution.
Danilo Marchesini, Gabriel Brammer, Takahiro Morishita, Pietro Bergamini, Xin Wang, Marusa Bradac, Guido Roberts-Borsani, Victoria Strait, Tommaso Treu, Adriano Fontana, Tucker Jones, Paola Santini, Benedetta Vulcani, Ana Acebron, Antonello Calabrò, Marco Castellano, Karl Glazebrook, Claudio Grillo, Amata Mercurio, Themiya Nanayakkara, Piero Rosati, Chanita Tubthong, Eros Vanzella   +22 more
doaj   +1 more source

Morphological evolution in situ: Disk-dominated cluster red sequences at z ~ 1.25

, 2015
We have carried out a joint photometric and structural analysis of red sequence galaxies in four clusters at a mean redshift of z ~ 1.25 using optical and near-IR HST imaging reaching to at least 3 magnitudes fainter than $M^*$.
Bremer, M. N., De Propris, R., Phillipps, S.   +2 more
core   +1 more source

The Size Evolution of High-Redshift Galaxies [PDF]

The Astrophysical Journal, 2004
5 pages, including 3 figures; uses emulateapj style; accepted by ApJL for publication in a special issue of early GOODS ...
Ferguson H. C., Dickinson M., Giavalisco M., Kretchmer C., Ravindranath S., Idzi R., Taylor E., Conselice C. J., Michael Fall S., Gardner J. P., Livio M., Madau P., Moustakas L. A., Papovich C. M., Somerville R. S., Spinrad H., Stern D.   +16 more
openaire   +3 more sources

Multi-wavelength Observations of Dusty Star Formation at Low and High Redshift

, 2000
This paper examines what can be learned about high-redshift star formation from the small fraction of high-redshift galaxies' luminosities that is emitted at accessible wavelengths.
Acosta-Pulido J. A., Aussel H., Blain A. W., Calzetti D., Charles C. Steidel, Hughes D. H., Kells W., Klaas U., Kurt L. Adelberger, Lawrence A., Madau P., Oakes D., Rifatto A., Rigopoulou D., Sanders D. B., Steidel C. C.   +15 more
core   +2 more sources