J/ApJS/101/287 H II Regions in Seyfert galaxies. I. (Tsvetanov+ 1995)
H II region populations in Seyfert galaxies. I. Database
Tsvetanov Z.I., Petrosian A.R.
<Astrophys. J. Suppl. Ser. 101, 287 (1995)>
=1995ApJS..101..287T 1995ApJS..101..287T
ADC_Keywords: Galaxies, Seyfert ; H II regions
Keywords: galaxies: Seyfert - H II regions - surveys
Abstract:
Data on positions, effective diameters, and absolute fluxes of H II
regions on 21 Seyfert spiral galaxies are presented together with the
Hα + [N II] images and identification charts. The objects are
selected from a larger emission-line survey of a distance-limited
sample of southern Seyfert galaxies. Statistical analysis of the data
as well as discussion and comparison of the H II region populations in
Seyfert and normal galaxies will be presented in forthcoming papers.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
galaxies.dat 82 21 Basic characteristics of the sample galaxies
(table 2)
hii.dat 46 3186 H II regions catalog
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Byte-by-byte Description of file: galaxies.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Galaxy *Galaxy name
15- 16 I2 h RAh Right ascension (1950)
18- 19 I2 min RAm Right ascension (1950)
21- 25 F5.2 s RAs Right ascension (1950)
27 A1 --- DE- Declination sign
28- 29 I2 deg DEd Declination (1950)
31- 32 I2 arcmin DEm Declination (1950)
34- 37 F4.1 arcsec DEs Declination (1950)
40- 42 A3 --- AGN AGN type (Seyfert number, or SB=starburst)
44- 55 A12 --- MType Morphological type
57- 61 I5 km/s cz Velocity
63- 68 F6.2 mag Bmag B-band magnitude
70- 73 I4 --- HII Number of H II regions
75- 82 A8 --- Name Name of galaxy, as in file "hii.dat"
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Note on Galaxy: the second NGC 4507 is 4593, corrected on 13-Nov-1996
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Byte-by-byte Description of file: hii.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Galaxy name
11- 13 I3 --- Seq Sequence number of H II region in galaxy
15- 22 F8.3 arcsec X *X offset of H II region
24- 31 F8.3 arcsec Y *Y offset of H II region
33- 37 F5.2 arcsec Deff Effective diameter of the H II region
39- 46 E8.2 mW/m2 Flux Halpha+[N II] flux of the H II region
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Note on X, Y:
The X,Y positions of the H II regions. The coordinate systems are
centered on the nuclei of the galaxies, which are determined as the
brightest point in Halpha. The X-axis is along the east-west
direction, with negative values to the east, and the Y-axis is along
the north-south direction, with negative values to the south.
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Origin: AAS CD-ROM series, Volume 6, 1996 Lee Brotzman [ADS] 23-Apr-96
(End) [CDS] 06-Sep-1996