J/A+A/476/89 HII galaxies narrow-band Hbeta images (Lagos+, 2007)
Narrow-band Hβ images of star-formation regions in HII galaxies.
Lagos P., Telles E., Melnick J.
<Astron. Astrophys., 476, 89-96 (2007)>
=2007A&A...476...89L 2007A&A...476...89L
ADC_Keywords: Galaxies, photometry ; H II regions ; Photometry, H-beta
Keywords: catalogs - galaxies: dwarf - galaxies: photometry - galaxies: ISM -
galaxies: fundamental parameters
Abstract:
Our aims is to create a catalog of images of HII galaxies and their
individual star-formation regions in order to study the distribution
of the gas emission and their underlying stellar continuum.
We have used Hβ narrow-band images of 43 selected HII galaxies
obtained at ESO NTT 3.58m telescope using the SUSI2 camera.
Surface photometric Hβ fluxes and equivalent widths for all
objects and star-formation regions are presented in this catalog.
Description:
The data presented in this work were obtained on March 14, 2002 and
March 30-April 01, 2003 at the ESO NTT 3.58m telescope in La Silla
Chile, using the SUSI2 (Superb Seeing Imager-2) camera.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 87 43 *Sample and log of observation
table3.dat 58 119 Observed properties of the sample
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Note on table1.dat: Tol 1457-262ab and Tol 1457-262ce have the corrected
values (in error in the published paper), given by the author.
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See also:
J/A+AS/91/285 : HII galaxies spectrophotometric catalogue (Terlevich+, 1991)
J/A+A/423/133 : Spectral indexes in HII galaxies (Westera+, 2004)
J/ApJS/153/429 : SDSS strong emission line HII galaxies (Kniazev+, 2004)
J/MNRAS/365/454 : Emission line analysis of HII galaxies (Hoyos+, 2006)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Sequential number of the galaxy
4- 20 A17 --- Gal Galaxy name
22- 23 I2 h RAh Right ascension (J2000)
25- 26 I2 min RAm Right ascension (J2000)
28- 31 F4.1 s RAs Right ascension (J2000)
33 A1 --- DE- Declination sign (J2000)
34- 35 I2 deg DEd Declination (J2000)
37- 38 I2 arcmin DEm Declination (J2000)
40- 41 I2 arcsec DEs Declination (J2000)
43- 48 F6.4 --- z Redshift from NED
50- 52 I3 --- Filt Filter number (1)
54- 58 A5 --- ExpTime1 Exposure Time in Hbeta Narrow-Band (in s)
59 A1 --- --- [-]
60- 64 A5 --- ExpTime2 Exposure Time in Continuum (in s)
66- 75 A10 "YYYY/DD/MM" Date Observation date
76 A1 --- --- [,]
77- 78 I2 --- Date2 ? Second day of observation
81- 83 F3.1 --- Seeing Seeing to each observation (2)
84 A1 --- --- [-]
85- 87 F3.1 --- Seeing2 ? Seeing for Date2 observation
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Note (1): Filters characteristics:
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Filter lambdac FWHM Transmission Kλ
%
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548 4924.15 52.14 67.22 0.137
719 4898.24 51.62 78.04 0.140
880 4693.51 76.44 72.20 0.161
881 4864.38 66.68 83.23 0.147
882 5009.84 72.44 86.12 0.129
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where Kλ is the extinction coefficient
Note (2): Measured as the FWHM of stellar images
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Sequential number of the galaxy
4- 20 A17 --- Gal Galaxy name
21 I1 --- m_Gal ? Region number, indicated in Fig. 4 (1)
23- 27 F5.2 10-17W/m2 FHbeta Observed Hβ flux
29- 32 F4.2 10-17W/m2 e_FHbeta rms uncertainty on Hbeta
34- 38 F5.2 [10-7W] LHbeta Log of Hβ luminosity
40- 42 I3 0.1nm EWHb Hβ equivalent width
44- 47 A4 --- MType Morphologycal classification given by
Loose & Thuan (1986ApJ...309...59L 1986ApJ...309...59L)
49 A1 --- --- [-]
51- 52 A2 --- MType2 Morphological classification given by
Telles et al. (1997MNRAS.288...78T 1997MNRAS.288...78T)
54- 57 F4.2 --- cHb ? Extinction coefficient used in this work
58 A1 --- r_cHb [abcde] Reference for cHb (2)
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Note (1): Nomenclature note:
Regions are identified as
[LTM2007] Gal m_Gal, ([LTM2007] Tol0505-387 N as example)
When no m_Gal number, the data are those of the galaxy.
Note (2): References as follows:
a = Kehrig et al. (2004AJ....128.1141K 2004AJ....128.1141K)
b = Pena et al. (1991A&A...251..417P 1991A&A...251..417P)
c = Terlevich et al. (1991, Cat. J/A+AS/91/285)
d = Telles et al. (2001ApJ...548..671T 2001ApJ...548..671T)
e = Telles et al. (1997MNRAS.288...78T 1997MNRAS.288...78T)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 31-Dec-2007