J/ApJ/658/1006 Radial profiles for 161 face-on spirals (Munoz-Mateos+, 2007)
Specific star formation rate profiles in nearby spiral galaxies:
quantifying the inside-out formation of disks.
Munoz-Mateos J.C., Gil De Paz A., Boissier S., Zamorano J., Jarrett T.,
Gallego J., Madore B.F.
<Astrophys. J., 658, 1006-1026 (2007)>
=2007ApJ...658.1006M 2007ApJ...658.1006M
ADC_Keywords: Galaxies, nearby ; Galaxies, photometry ; Ultraviolet
Keywords: atlases - galaxies: photometry - galaxies: stellar content -
infrared: galaxies - ultraviolet: galaxies
Abstract:
We present specific star formation rate (sSFR) radial profiles for a
sample of 161 relatively face-on spiral galaxies from the GALEX Atlas
of Nearby Galaxies. The sSFR profiles are derived from GALEX and 2MASS
(FUV-K) color profiles after a proper SFR calibration of the UV
luminosity and K-band mass-to-light ratio are adopted. The (FUV-K)
profiles were first corrected for foreground Galactic extinction and
later for internal extinction using the ratio of the total-infrared
(TIR) to FUV emission. For those objects where TIR-to-FUV ratio radial
profiles were not available, the (FUV-NUV) color profiles were used
as a measure of the UV slope. The sSFR radial gradients derived from
these profiles allow us to quantify the inside-out scenario for the
growth of spiral disks for the first time in the local universe.
Description:
We have compiled a sample of 161 galaxies from the GALEX Ultraviolet
Atlas of Nearby Galaxies (Gil de Paz et al. 2007, Cat. J/ApJS/173/185)
on the basis of two main selection criteria: morphological type and
inclination.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 84 161 Galaxy sample
table2.dat 103 2868 Radial profiles
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See also:
J/ApJS/173/185 : GALEX ultraviolet atlas of nearby galaxies (Gil de Paz+, 2007)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Galaxy name
15- 16 I2 h RAh Right ascension (J2000.0)
18- 19 I2 min RAm Right ascension (J2000.0)
21- 24 F4.1 s RAs Right ascension (J2000.0)
26 A1 --- DE- Declination sign (J2000.0)
27- 28 I2 deg DEd Declination (J2000.0)
30- 31 I2 arcmin DEm Declination (J2000.0)
33- 36 F4.1 arcsec DEs Declination (J2000.0)
38- 41 F4.1 arcmin D25 Apparent major isophotal diameter at
muB=25mag/arcsec2 from RC3 (VII/155)
43- 44 I2 deg i Inclination angle, corrected for intrinsic
thickness
46- 50 F5.3 mag E(B-V) Galactic colour excess from Schlegel et al.
(1998ApJ...500..525S 1998ApJ...500..525S)
52- 55 F4.1 --- TType ?=-1. Morphological type as in RC3 (<VII/155)
57- 62 F6.2 Mpc Dist Distance to the galaxy, rounded to the nearest
Mpc when larger than 10Mpc
64- 68 F5.2 mag FUV FUV magnitude (1200-1775Å, AB system)
70- 73 F4.2 mag e_FUV rms uncertainty on mFUV
75- 79 F5.2 mag Kmag ? K magnitude (Vega system)
81- 84 F4.2 mag e_Kmag ? rms uncertainty on Kmag
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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- 13 A13 --- Name Galaxy name
15- 18 I4 arcsec ASize Angular semimajor axis
20- 24 F5.2 kpc PSize Physical semimajor axis
26- 30 F5.2 mag/arcsec2 muFUV Observed FUV band surface brightness (1)
32- 35 F4.2 mag/arcsec2 e_muFUV Uncertainty in muFUV
37- 41 F5.2 mag/arcsec2 muK Observed K band surface brightness (1)
43- 46 F4.2 mag/arcsec2 e_muK Uncertainty in muK
48- 52 F5.2 mag (FUV-K)o Observed (FUV-K) color index (1)
54- 57 F4.2 mag e_(FUV-K)o Uncertainty in (FUV-K)o
59- 62 F4.2 mag AFUV Internal FUV band extinction
64- 67 F4.2 mag E_AFUV Upper limit uncertainty in AFUV
69- 72 F4.2 mag e_AFUV Lower limit uncertainty in AFUV
74- 77 F4.2 mag (FUV-K)c Corrected (FUV-K) color index (2)
79- 82 F4.2 mag E_(FUV-K)c Upper limit uncertainty in (FUV-K)c
84- 87 F4.2 mag e_(FUV-K)c Lower limit uncertainty in (FUV-K)c
89- 93 F5.2 [10-11/yr] log(sSFR) Log of specific Star Formation Rate (3)
95- 98 F4.2 [10-11/yr] E_log(sSFR) Upper limit uncertainty in log(sSRF)
100-103 F4.2 [10-11/yr] e_log(sSFR) Lower limit uncertainty in log(sSRF)
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Note (1): Corrected only from Galactic extinction.
Note (2): Corrected from both Galactic and internal extinction.
Note (3): SFR per unit of stellar mass.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 23-Jan-2009