2006A&A...453..809I -
Astronomy and Astrophysics, volume 453, 809-815 (2006/7-3)
The VIMOS-VLT Deep Survey. Galaxy luminosity function per morphological type up to z = 1.2.
ILBERT O., LAUGER S., TRESSE L., BUAT V., ARNOUTS S., LE FEVRE O., BURGARELLA D., ZUCCA E., BARDELLI S., ZAMORANI G., BOTTINI D., GARILLI B., LE BRUN V., MACCAGNI D., PICAT J.-P., SCARAMELLA R., SCODEGGIO M., VETTOLANI G., ZANICHELLI A., ADAMI C., ARNABOLDI M., BOLZONELLA M., CAPPI A., CHARLOT S., CONTINI T., FOUCAUD S., FRANZETTI P., GAVIGNAUD I., GUZZO L., IOVINO A., McCRACKEN H.J., MARANO B., MARINONI C., MATHEZ G., MAZURE A., MENEUX B., MERIGHI R., PALTANI S., PELLO R., POLLO A., POZZETTI L., RADOVICH M., BONDI M., BONGIORNO A., BUSARELLO G., CILIEGI P., MELLIER Y., MERLUZZI P., RIPEPI V. and RIZZO D.
Abstract (from CDS):
We have computed the evolution of the rest-frame B-band luminosity function (LF) for bulge and disk-dominated galaxies since z=1.2. We use a sample of 605 spectroscopic redshifts with IAB≤24 in the Chandra Deep Field South from the VIMOS-VLT Deep Survey, 3555 galaxies with photometric redshifts from the COMBO-17 multi-color data, coupled with multi-color HST/ACS images from the Great Observatories Origin Deep Survey. We split the sample in bulge- and disk-dominated populations on the basis of asymmetry and concentration parameters measured in the rest-frame B-band. We find that at z=0.4-0.8, the LF slope is significantly steeper for the disk-dominated population (α=-1.19±0.07) compared to the bulge-dominated population (α=-0.53±0.13). The LF of the bulge-dominated population is composed of two distinct populations separated in rest-frame color: 68% of red (B-I)AB>0.9 and bright galaxies showing a strongly decreasing LF slope α=+0.55±0.21, and 32% of blue (B-I)AB<0.9 and more compact galaxies which populate the LF faint-end. We observe that red bulge-dominated galaxies are already well in place at z≃1, but the volume density of this population is increasing by a factor 2.7 between z∼1 and z∼0.6. It may be related to the building-up of massive elliptical galaxies in the hierarchical scenario. In addition, we observe that the blue bulge-dominated population is dimming by 0.7 mag between z∼1 and z∼0.6. Galaxies in this faint and more compact population could possibly be the progenitors of the local dwarf spheroidal galaxies.
Abstract Copyright:
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Journal keyword(s):
surveys - Galaxy: evolution - galaxies: luminosity function, mass function - galaxies: fundamental parameters
NAME Chandra Deep Field-South
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Region defined in the Sky
Origin of the objects types :
(Ref) Object type as listed in the reference "Ref"
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reg
()
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
quality : flag of quality
E ≥ 10"
D : 1-10" (and some old data)
C : 0.1-1"
B : 0.01-0.1" + 2MASS, Tyc
A : VLBI, Hipparcos
bibcode : bibcode of the coordinates reference
FK4
coord.
(ep=B1950 eq=1950) :
03 30 22.4 -27 58 35
[
]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
quality : flag of quality
E ≥ 10"
D : 1-10" (and some old data)
C : 0.1-1"
B : 0.01-0.1" + 2MASS, Tyc
A : VLBI, Hipparcos
bibcode : bibcode of the coordinates reference
Gal
coord.
(ep=J2000) :
223.5732 -54.4374
[
]
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
maj-axis : major axis size (arc minutes)
min-axis : minor axis size (arc minutes)
angle : orientation angle (in degrees)
(wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
bibcode : bibcode of the angular size reference
Angular size (arcmin):
15.84 15.84 ~ (~) D
~
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References (2080 between 1850 and 2024) (Total 2080)
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