J/A+A/445/79 Nearby early-type gal. with ionized gas. II. (Annibali+, 2006)
Nearby early-type galaxies with ionized gas.
II. Line-strength indices for 18 additional galaxies.
Annibali F., Bressan A., Rampazzo R., Zeilinger W.W.
<Astron. Astrophys., 445, 79-91 (2006)>
=2006A&A...445...79A 2006A&A...445...79A
ADC_Keywords: Galaxies, nearby ; Galaxies, spectra ; Equivalent widths
Keywords: galaxies: elliptical and lenticular, cD -
galaxies: fundamental parameters - galaxies: formation -
galaxies: evolution
Abstract:
Rampazzo et al., 2005, Cat. J/A+A/433/497 (Paper I) presented a
data-set of line-strength indices for 50 early-type galaxies in the
nearby Universe. The galaxy sample is biased toward galaxies showing
emission lines, located in environments corresponding to a broad range
of local galaxy densities, although predominantly in low density
environments. The present addendum enlarges the above data-set of
line-strength indices by analyzing 18 additional early-type galaxies
(three galaxies, NGC 3607, NGC 5077 and NGC 5898 were presented in the
previous set). We measured 25 line-strength indices, defined by the
Lick IDS "standard" system (Trager et al., 1998, Cat. J/ApJS/116/1;
Worthey & Ottaviani, 1997, Cat. J/ApJS/111/377), for 7 luminosity
weighted apertures and 4 gradients of each galaxy. This addendum
presents the line-strength data-set and compares it with the available
data in the literature.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 88 18 Overview of the observed sample
table5.dat 31 119 Hβ corrections for apertures
table6.dat 31 65 Hβ corrections for gradients
table8.dat 361 454 *Aperture fully corrected line-strength indices
table9.dat 361 257 *Gradients fully corrected line-strength indices
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Note on table8.dat and table9.dat: these tables provide the final line-strength
indices of the gradients and apertures for the whole sample of 65 galaxies
(Papers I + II). In these tables the Hβ index has been corrected for
emission using the Hα line.
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See also:
J/A+A/433/497 : Nearby early-type galaxies with ionized gas I (Rampazzo+ 2005)
J/A+A/463/455 : Nearby early-type gal. with ionized gas III (Annibali+ 2007)
J/A+A/519/A40 : Nearby early-type gal. with ionized gas. IV (Annibali+, 2010)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Galaxy Galaxy name
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 18 F4.1 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 28 I2 arcsec DEs Declination (J2000)
30- 40 A11 --- MType1 Spectral type from RSA
(Sandage & Tamman, 1987, Cat. VII/51)
42- 48 A7 --- MType2 Spectral type from RC3
(de Vaucouleurs, Cat. VII/155)
50- 52 I3 deg PA Position angle of the isophotes along
the major axis
54- 58 F5.2 mag B0mag Total corrected B magnitude (from RC3)
60- 63 F4.2 mag (B-V)0 ? Total corrected B-V colour index (from RC3)
65- 68 F4.2 mag (U-B)0 ? Total corrected U-B colour index (from RC3)
70- 73 I4 km/s HV Heliocentric systemic velocity (2)
75- 78 F4.1 arcsec re Effective radius (1)
80- 83 F4.2 Mpc-3 rhoxyz ? Measure of the richness of the environment,
in galaxies/Mpc3
85- 88 F4.2 --- eps Average ellipticity of the galaxy (2)
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Note (1): The value of re of NGC 4696, NGC 5090 and NGC 5266 have been
derived from ESO-LV (Lauberts & Valentijn, 1989, Cat. VII/115)
while the value for NGC 5044 is derived from Goudfrooij (1994,
Cat. J/A+AS/104/179)
Note (2): From HYPERCAT: http://www-obs.univ-lyon1.fr/hypercat
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Byte-by-byte Description of file: table5.dat table6.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Galaxy Galaxy designation
9 I1 --- iz [0/6] Indicates the aperture (table5)
or the gradient (table6) code (G2)
12- 18 F7.3 0.1nm EWHb1 Equivalent width of Hβ as derived
from [OIII]
23 I1 --- Qual Quality of the measure (G1)
25- 31 F7.3 0.1nm EWHb2 Equivalent width of Hβ as derived
from Hα
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Byte-by-byte Description of file: table8.dat table9.dat
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Bytes Format Units Label Explanations
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1- 7 A7 -- Galaxy Galaxy designation
9 I1 -- iz [0/6] Indicates the aperture (table8)
or the gradient (table9) code (G2)
11- 15 F5.3 --- r1 Relative aperture radius (lower limit)
17- 21 F5.3 --- r2 Relative aperture radius (upper limit)
23- 27 F5.3 --- rwl Luminosity weighted radius
29- 32 F4.1 arcsec req Adopted equivalent radius
33- 34 A2 --- --- [00]
36- 41 F6.3 mag CN1 Line-strength index of CN1
43- 48 F6.3 mag CN2 Line-strength index of CN2
50- 55 F6.3 0.1nm Ca4227 Line-strength index of Ca4227
57- 62 F6.3 0.1nm G4300 Line-strength index of G4300
64- 69 F6.3 0.1nm Fe4383 Line-strength index of Fe4383
71- 76 F6.3 0.1nm Ca4455 Line-strength index of Ca4455
78- 83 F6.3 0.1nm Fe4531 Line-strength index of Fe4531
85- 90 F6.3 0.1nm Fe4668 Line-strength index of Fe4668
92- 97 F6.3 0.1nm Hbeta Line-strength index of Hbeta
99-105 F7.3 0.1nm Fe5015 Line-strength index of Fe5015
107-112 F6.3 mag Mg1 Line-strength index of Mg1
114-119 F6.3 mag Mg2 Line-strength index of Mg2
121-126 F6.3 0.1nm Mgb Line-strength index of Mgb
128-133 F6.3 0.1nm Fe5270 Line-strength index of Fe5270
135-140 F6.3 0.1nm Fe5335 Line-strength index of Fe5335
142-147 F6.3 0.1nm Fe5406 Line-strength index of Fe5406
149-154 F6.3 0.1nm Fe5709 Line-strength index of Fe5709
156-161 F6.3 0.1nm Fe5782 Line-strength index of Fe5782
163-168 F6.3 0.1nm NaD Line-strength index of NaD
170-175 F6.3 mag TiO1 Line-strength index of TiO1
177-182 F6.3 mag TiO2 Line-strength index of TiO2
184-189 F6.3 0.1nm HdeltaA Line-strength index of HdeltaA
191-197 F7.3 0.1nm HgammaA Line-strength index of HgammaA
199-204 F6.3 0.1nm HdeltaF Line-strength index of HdeltaF
206-211 F6.3 0.1nm HgammaF Line-strength index of HgammaF
213-217 F5.3 mag e_CN1 Error on Line-strength index of CN1
219-223 F5.3 mag e_CN2 Error on Line-strength index of CN2
225-229 F5.3 0.1nm e_Ca4227 Error on Line-strength index of Ca4227
231-235 F5.3 0.1nm e_G4300 Error on Line-strength index of G4300
237-241 F5.3 0.1nm e_Fe4383 Error on Line-strength index of Fe4383
243-247 F5.3 0.1nm e_Ca4455 Error on Line-strength index of Ca4455
249-253 F5.3 0.1nm e_Fe4531 Error on Line-strength index of Fe4531
255-259 F5.3 0.1nm e_Fe4668 Error on Line-strength index of Fe4668
261-265 F5.3 0.1nm e_Hbeta Error on Line-strength index of Hbeta
267-271 F5.3 0.1nm e_Fe5015 Error on Line-strength index of Fe5015
273-277 F5.3 mag e_Mg1 Error on Line-strength index of Mg1
279-283 F5.3 mag e_Mg2 Error on Line-strength index of Mg2
285-289 F5.3 0.1nm e_Mgb Error on Line-strength index of Mgb
291-295 F5.3 0.1nm e_Fe5270 Error on Line-strength index of Fe5270
297-301 F5.3 0.1nm e_Fe5335 Error on Line-strength index of Fe5335
303-307 F5.3 0.1nm e_Fe5406 Error on Line-strength index of Fe5406
309-313 F5.3 0.1nm e_Fe5709 Error on Line-strength index of Fe5709
315-319 F5.3 0.1nm e_Fe5782 Error on Line-strength index of Fe5782
321-325 F5.3 0.1nm e_NaD Error on Line-strength index of NaD
327-331 F5.3 mag e_TiO1 Error on Line-strength index of TiO1
333-337 F5.3 mag e_TiO2 Error on Line-strength index of TiO2
339-343 F5.3 0.1nm e_HdeltaA Error on Line-strength index of HdeltaA
345-349 F5.3 0.1nm e_HgammaA Error on Line-strength index of HgammaA
351-355 F5.3 0.1nm e_HdeltaF Error on Line-strength index of HdeltaF
357-361 F5.3 0.1nm e_HgammaF Error on Line-strength index of HgammaF
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Global notes:
Note (G1):
When the emission is lower than the variance the quality is set to 0.
When the emission is between 1 and 2sigma or larger than 2sigma the
quality is set to 1 and 2 respectively.
Note (G2): In tables 5 and 8, the aperture code is the following:
0 = r = 1.5"
1 = r = 2.5"
2 = r = 10"
3 = r = re/10
4 = r = re/8
5 = r = re/4
6 = r = re/2
In table 9 the gradient code is the following:
0 = 0 < r < re/16
1 = re/16 < r < re/8
2 = re/8 < r < re/4
3 = re/4 < r < re/2
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Acknowledgements:
Francesca Annibali, annibali(at)stsci.edu
(End) Patricia Vannier [CDS] 26-Jan-2007