J/ApJ/658/960 SB profiles of 9 late-type disk galaxies (Carollo+, 2007)
Old and young bulges in late-type disk galaxies.
Carollo C.M., Scarlata C., Stiavelli M., Wyse R.F.G., Mayer L.
<Astrophys. J., 658, 960-979 (2007)>
=2007ApJ...658..960C 2007ApJ...658..960C
ADC_Keywords: Galaxies, photometry
Keywords: galaxies: bulges - galaxies: evolution - galaxies: formation -
galaxies: spiral - galaxies: stellar content
Abstract:
We use HST ACS and NICMOS imaging to study the inner B-I and I-H
colors of nine late-type spiral galaxies, which we interpret on the
basis of different star formation histories. The colors and scale
lengths of the bulges of these late-type systems are correlated with
those of the disks in which they are embedded. We find that in about
half of the systems, the bulk of the bulge mass formed more recently
than the disk. In the remainder, early bulge formation was
supplemented by continuing "rejuvenating" star formation. More massive
bulges are generally older.
Description:
The nine galaxies of the present sample were selected from our WFPC2
and NICMOS survey.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 84 9 Basic parameters for the sample galaxies
table8.dat 33 2016 Surface Brightness profiles
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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- 11 A11 --- Name Galaxy name
13- 14 I2 h RAh Right ascension (J2000)
16- 17 I2 min RAm Right ascension (J2000)
19- 23 F5.2 s RAs Right ascension (J2000)
25 A1 --- DE- Declination sign (J2000)
26- 27 I2 deg DEd Declination (J2000)
29- 30 I2 arcmin DEm Declination (J2000)
32- 35 F4.1 arcsec DEs Declination (J2000)
37- 41 F5.2 mag BTmag Total blue magnitude from RC3 (VII/155)
43- 44 I2 Mpc Dist Distance
46- 56 A11 --- MType Morphological type (1)
58- 62 F5.3 mag E(B-V) B-V colour excess from Schlegel et al.
(1998ApJ...500..525S 1998ApJ...500..525S)
64- 69 F6.2 mag HMAG Absolute H magnitude (computed from 2MASS)
71- 74 F4.2 mag e_HMAG rms uncertainty on HMAG
76- 80 F5.1 km/s Vmax ? Maximum rotation velocity (2)
82- 84 F3.1 km/s e_Vmax ? rms uncertainty on Vmax
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Note (1): Morphological classification is from the RC3 (Cat. VII/155)
(first value) and UGC (Cat. VII/26) (second value) catalogs.
Note (2): Vmax (corrected for inclination) from Paturel et al. (2003, Cat.
VII/237), except for NGC 2082, for which Vmax was derived from W20 (HI
line velocity width at 20% of the maximum) taken from Kilborn et al.
(2002, Cat. J/AJ/124/690).
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1 A1 --- Filt [BIH] Filter used in the observation
3- 13 A11 --- Name Galaxy name
15- 20 F6.3 arcsec Rad Galactocentric distance
22- 27 F6.3 mag/arcsec2 SB Surface brightness in Filt
29- 33 F5.3 mag/arcsec2 e_SB The 1σ error in SB
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 23-Jan-2009