2004ApJ...604..521T

Query : 2004ApJ...604..521T

2004ApJ...604..521T - Astrophys. J., 604, 521-533 (2004/April-1)

The luminosity-size and mass-size relations of galaxies out to z ∼ 3.

TRUJILLO I., RUDNICK G., RIX H.-W., LABBE I., FRANX M., DADDI E., VAN DOKKUM P.G., FOERSTER-SCHREIBER N.M., KUIJKEN K., MOORWOOD A., ROETTGERING H., VAN DER WEL A., VAN DER WERF P. and VAN STARKENBURG L.

Abstract (from CDS):

The luminosity-size and mass-size distributions of galaxies out to z∼3 are presented. We use very deep near-infrared images of the Hubble Deep Field-South in the Js, H, and Ksbands, taken as part of FIRES at the VLT, to follow the evolution of the optical rest-frame sizes of galaxies. For a total of 168 galaxies with Ks,AB≤23.5, we find that the rest-frame V-band sizes re,Vof luminous galaxies (LV∼2x1010 h–2 L☉) at 2<z<3 are 3 times smaller than for equally luminous galaxies today. In contrast, the mass-size relation has evolved relatively little: the size at mass M*∼2x1010 h–2 M☉ has changed by 20% (±20%) since z∼2.5. Both results can be reconciled by the fact that the stellar M/L ratio is lower in the luminous high-z galaxies than in nearby ones because they have young stellar populations. The lower incidence of large galaxies at z∼3 seems to reflect the rarity of galaxies with high stellar mass.

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Journal keyword(s): Galaxies: Evolution - Galaxies: Fundamental Parameters - Galaxies: High-Redshift - Galaxies: Structure - Infrared: Galaxies

VizieR on-line data: <Available at CDS (J/ApJ/604/521): table1.dat>

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Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME HDF-S reg 22 32 56 -60 33.0           ~ 580 0

Query : 2004ApJ...604..521T

Basic data :
NAME HDF-S -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		22 32 56.0 -60 33 00 [ ] E ~
FK4 coord. (ep=B1950 eq=1950) : 		22 29 37.3 -60 48 28 [ ]
Gal coord. (ep=J2000) : 		328.2511 -49.2122 [ ]
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Identifiers (4) :
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NAME HDF-S NAME HDFS NAME Hubble Deep Field South NAME Southern Hubble Deep Field

References (580 between 1850 and 2026) (Total 580)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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