J/MNRAS/434/325 452 AMIGA galaxies physical parameters (Fernandez Lorenzo+ 2013)
The stellar mass-size relation for the most isolated galaxies in the local
Universe.
Fernandez Lorenzo M., Sulentic J., Verdes-Montenegro L., Argudo-Fernandez M.
<Mon. Not. R. Astron. Soc. 434, 325 (2013)>
=2013MNRAS.434..325F 2013MNRAS.434..325F
ADC_Keywords: Galaxies, photometry ; Morphology
Keywords: galaxies: evolution - galaxies: fundamental parameters -
galaxies: general - galaxies: interactions
Abstract:
Disentangling processes governing the formation and evolution of
galaxies is a fundamental challenge in extragalactic research. In this
sense the current belief that galaxies grow by the action of minor
mergers makes the study of the stellar mass-size relation in
different environments an important tool for distinguishing effects of
internal and external processes.
The aim of this work is to study the effects of environment on the
growth in size of galaxies. As part of AMIGA project (Analysis of the
Interstellar Medium of Isolated GAlaxies), we examine the stellar
mass-size relation for a sample of the most isolated galaxies in the
local Universe interpreted as stellar systems where evolution has been
mainly governed by internal processes. Effects of environment on the
stellar mass-size relation are evaluated by comparing our results
with samples of less isolated early- and late-type galaxies, as
well as, for the first time, different spiral subtypes.
Stellar masses in our sample were derived by fitting the SED of each
galaxy with kcorrect. We used two different size estimators, the
half-light radius obtained with SExtractor and the effective radius
calculated by fitting a Sersic profile to the i-band image of each
galaxy using GALFIT.We found good agreement between those size
estimators when the Sersic index fell in the range 2.5<n<4.5 and
0.5<n<2.5 for (visually classified) early- and late-type galaxies
respectively.
Description:
Physical parameters for 452 early and late-type isolated galaxies that
are part of the AMIGA sample. For each galaxy, corrected magnitudes in
g, r and i-bands, morphological type, Sersic effective radius and
half-light radius, stellar mass, Sersic index, and semi-axes ratio are
given.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 142 452 Physical parameters for the AMIGA galaxies in
our sample
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See also:
J/A+A/411/391 : AMIGA project. Revised positions for CIG galaxies (Leon+ 2003)
J/A+A/436/443 : AMIGA. I. Velocities of CIG galaxies (Verdes-Montenegro+ 2005)
J/A+A/449/937 : AMIGA. II. Morphological refinement (Sulentic+, 2006)
J/A+A/462/507 : AMIGA. III. IRAS data (Lisenfeld+, 2007)
J/A+A/470/505 : AMIGA. IV. Neighbours around CIG galaxies (Verley+, 2007)
J/A+A/472/121 : AMIGA. V. Isolation parameters (Verley+, 2007)
J/A+A/485/475 : AMIGA. VI. Radio fluxes of the isolated galaxies (Leon+ 2008)
J/A+A/486/73 : AMIGA. VII. FIR and radio study (Sabater+, 2008)
J/A+A/532/A117 : AMIGA. VIII. Flux ratio asymmetry parameter (Espada+, 2011)
J/A+A/534/A102 : AMIGA. IX. Molecular gas properties (Lisenfeld+, 2011)
J/A+A/540/A47 : AMIGA. X. Isolated galaxy colors (Fernandez Lorenzo+, 2012)
J/A+A/545/A15 : AMIGA. XI. Optical nuclear activity (Sabater+, 2012)
http://amiga.iaa.es : AMIGA Home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- CIG CIG (VII/82) number, <K73 NNNN> in Simbad
6- 7 I2 --- MType Morphological type (RC3) (1)
9- 13 F5.2 mag gmag Galactic and K-corrected g-band magnitude
15- 18 F4.2 mag e_gmag Error estimate in gmag
20- 24 F5.2 mag rmag Galactic and K-corrected r-band magnitude
26- 29 F4.2 mag e_rmag Error estimate in rmag
31- 35 F5.2 mag imag Galactic and K-corrected i-band magnitude
37- 40 F4.2 mag e_imag Error estimate in imag
42- 46 F5.2 mag Ksmag Galactic and K-corrected Ks-band magnitude
48- 51 F4.2 mag e_Ksmag Error estimate in Ksmag
53- 57 F5.2 [Msun] logM(0.7) Log of stellar mass for h=0.7 (2)
59- 62 F4.2 [Msun] e_logM(0.7) Error estimate in logM(0.7)
64- 68 F5.2 kpc R50(0.7) Half-light radius derived by SExtractor
for h=0.7 (2)
70- 73 F4.2 kpc e_R50(0.7) Error estimate in R50(0.7)
75- 79 F5.2 --- n Sersic index fitted by GALFIT
81- 84 F4.2 --- e_n Error estimate in n
86- 92 F7.2 kpc Re(0.7) Effective radius fitted by GALFIT
for h=0.7 (2)
94- 99 F6.2 kpc e_Re(0.7) Error estimate in Re(0.7)
102-105 F4.2 --- b/a Semi-axes ratio fitted by GALFIT
107-111 F5.2 [Msun] logM(0.75) Log of stellar mass for h=0.75 (3)
113-116 F4.2 [Msun] e_logM(0.75) Error estimate in logM(0.75)
118-122 F5.2 kpc R50(0.75) Half-light radius derived by SExtractor
for h=0.75 (3)
124-127 F4.2 kpc e_R50(0.75) Error estimate in R50(0.75)
129-135 F7.2 kpc Re(0.75) Effective radius fitted by GALFIT
for h=0.75 (3)
137-142 F6.2 kpc e_Re(0.75) Error estimate in Re(0.75)
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Note (1): Visual morphological classification (Sulentic et al. 2006,
Cat. J/A+A/449/937, revised in Fernandez Lorenzo et al. 2012,
Cat. J/A+A/540/A47)
Note (2): with h=H0/100 for H0=70km/s/Mpc.
Note (3): with h=H0/100 for H0=75km/s/Mpc.
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Acknowledgements:
Mirian Fernandez Lorenzo, mirian(at)iaa.es
(End) Patricia Vannier [CDS] 24-Jun-2013