J/MNRAS/414/3410 FUV excess in early-type galaxies (Carter+, 2011)
The spatial distribution and origin of the FUV excess in early-type galaxies.
Carter D., Pass S., Kennedy J., Karick A.M., Smith R.J.
<Mon. Not. R. Astron. Soc., 414, 3410-3423 (2011)>
=2011MNRAS.414.3410C 2011MNRAS.414.3410C
ADC_Keywords: Galaxies, photometry ; Ultraviolet
Keywords: galaxies: elliptical and lenticular, cD - galaxies: evolution -
galaxies: stellar content
Abstract:
We present surface photometry of a sample of 52 galaxies from the
GALaxy Evolution eXplorer (GALEX) and Two-Micron All-Sky Survey
(2MASS) data archives. These include 32 normal elliptical galaxies,
10 ellipticals with weak LINER or other nuclear activity and 10
star-forming ellipticals or early-type spirals. We examine the spatial
distribution of the far-ultraviolet excess in these galaxies, and its
correlation with dynamical and stellar population properties of the
galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 68 52 Galaxies observed and the properties of the
images used
table2.dat 104 52 Ultraviolet and stellar population properties of
the sample
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Byte-by-byte Description of file:table1.dat
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Bytes Format Units Label Explanations
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1 A1 --- Type [PLS] Type of galaxy: Passive/LINER/SF (1)
3- 10 A8 --- Name Galaxy name
12- 19 A8 --- MType Morphological type
20- 24 F5.2 mag MOD Distance modulus
26- 30 F5.2 mag Vtmag Total deredenned V magnitude from NED
32- 56 A25 ---- Set GALEX data set (2)
58- 62 I5 s t.NUV NUV image exposure time
64- 68 I5 s t.FUV FUV image exposure time
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Note (1): Type as follows:
P = Passive E and cD galaxies
L = LINERs and other weak AGN
S = Star-forming galaxies and early-type spirals
Note (2): in some cases the primary target was not the galaxy of our study.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Galaxy name
10- 15 F6.2 mag VMAG Absolute V magnitude (from apparent magnitude
and distance modulus given in Table 1)
17- 21 F5.2 mag NUVc Extinction-corrected apparent NUV magnitude
23- 26 F4.2 mag F-N Extinction-corrected (FUV-NUV) colour index,
derived with Galfit
28- 31 F4.2 mag F-Np Extinction-corrected (FUV-NUV) within a central
aperture of radius Re/8 as measured with phot
33- 36 F4.2 mag e_F-Np rms uncertainty on F-Np
38- 41 F4.2 mag N-H Extinction-corrected (NUV-H(IR)) colour index,
derived with Galfit
43- 47 F5.2 --- g(F-N) Colour gradient in (FUV-NUV) (1)
49- 52 F4.2 --- e_g(F-N) rms uncertainty on g(F-N)
54- 58 F5.2 --- g(N-J) Colour gradient in (NUV-J(IR)) (1)
60- 63 F4.2 --- e_g(N-J) rms uncertainty on g(N-J)
65- 69 F5.3 [km/s] logsig0 logarithm of the central stellar velocity
dispersion, derived from the values listed
in HyperLeda
71- 75 F5.3 [km/s] e_logsig0 rms uncertainty on logsig0
77- 81 F5.2 [Sun] [Z/H] ? Metallicity [Z/H]
83- 86 F4.2 [Sun] e_[Z/H] ? rms uncertainty on [Z/H]
88- 91 F4.2 [Sun] [a/Fe] ? Abundance of α elements [α/Fe]
93- 96 F4.2 [Sun] e_[a/Fe] ? rms uncertainty on [alpha/Fe]
98-104 A7 --- Ref References (2)
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Note (1): slope of the least-square regression upon log(radius)[arcsec],
derived from the data presented in Appendix A in the online version
of the paper, omitting the central value.
Note (2): Source of the stellar population parameters, coded as follows:
1 = Ogando et al. (2008, Cat. J/AJ/135/2424, 2010, IAU Symp. 262, 400)
2 = Annibali et al. (2007, Cat. J/A+A/463/455), their values of Z
converted to [Z/H] using Z☉=0.018
3 = Kuntschner et al. (2010MNRAS.408...97K 2010MNRAS.408...97K)
4 = Spolaor et at. (2010MNRAS.408..272S 2010MNRAS.408..272S)
5 = Serra et al. (2008A&A...483...57S 2008A&A...483...57S)
6 = Thomas et al. (2005, Cat. J/ApJ/621/673)
7 = Loubser et al. (2009, Cat. J/MNRAS/398/133)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 21-Feb-2012