J/ApJS/73/661 H II regions in M 101 (Hodge+ 1990)
The H II regions of M 101. I. An atlas of 1264 emission regions
Hodge P., Gurwell M., Goldader J.D., Kennicutt R.C. Jr.
<Astrophys. J. Suppl. Ser. 73, 661 (1990)>
=1990ApJS...73..661H 1990ApJS...73..661H
ADC_Keywords: Atlases ; H II regions
Keywords: galaxies: individual (M101) - nebulae: H II regions
Abstract:
A previous survey of the H II regions in M101 (Hodge and Kennicutt)
has been extended by a series of CCD images and image tube plates of
the galaxy, approximately tripling the number of known emission
regions. This paper provides maps and a catalog of a total of 1264 H
II regions in M101.
Objects:
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RA (2000) DE Designation(s)
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14 03.3 +54 21 M101 = NGC 5457
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 39 660 H II regions with positions from CCD frames
table2.dat 40 604 H II regions with positions from image tube plates
table3.dat 15 109 H II regions within NGC complexes
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Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- HII [1/1264] Sequental number in Simbad
6- 10 A5 --- Frame CCD frame (A-F, table1) or
image tube plate localisation (table2)
12- 13 I2 h RAh Right ascension (J2000.0)
15- 16 I2 min RAm Right ascension (J2000.0)
18- 21 F4.1 s RAs Right ascension (J2000.0)
23 A1 --- DE- Declination sign
24- 25 I2 deg DEd Declination (J2000.0)
27- 28 I2 arcmin DEm Declination (J2000.0)
30- 31 I2 arcsec DEs Declination (J2000.0)
33- 35 I3 --- N1982 ? Chart number in Hodge & Kennicutt,
1983ApJ...267..563H 1983ApJ...267..563H
37- 39 I3 --- N1969 ? Chart number in Hodge, 1969ApJS...18...73H 1969ApJS...18...73H
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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- 3 A3 --- --- [NGC]
5- 8 I4 --- NGC NGC name
10- 13 I4 --- HII [1/1264] HII region number
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History: Prepared via OCR at CDS.
(End) Marie-Jose Wagner, Patricia Bauer [CDS] 02-May-1997