J/A+AS/131/319 HII regions catalogue (Petit+ 1998)
Catalogue of HII regions measured on 6m telescope plates at
Observatoire de Marseille
Petit H., Figon P., Petit M.
<Astron. Astrophys. Suppl. Ser. 131, 319 (1998)>
=1998A&AS..131..319P 1998A&AS..131..319P
ADC_Keywords: H II regions ; Positional data
Keywords: galaxies: ISM - HII regions - catalogues
Abstract:
Several galaxies were studied at Observatoire de Marseille using
the films obtained at the 6m telescope with the Great Focal Reducer
installed at the prime focus of the russian telescope. We thought that
before we retire, it should be of some interest for the astronomical
community to find in a single catalogue all the data we published to
facilitate the research. (see hereunder the references). We give in
this catalogue the data of the following galaxies: M 33, M 51, M 81,
NGC 2403, NGC 4258 and NGC 7331. NGC 4258 was not studied with the 6m
telescope, but we added its results because it was published by the
same team using the same softwares. For NGC 7331 (see Petit 1998, Cat.
J/A+AS/131/317). The flux values are followed by*; that means that
they are not absolute fluxes like in the other publications. In order
to make the catalogue easier to consult, we homogeneised the data. So,
one can find some slight differences between the original data and the
catalogue ones. The details of these modifications are precised in the
Readme file associated to the catalogue in the data base. We did not
keep the remarks so it is necessary to look at the original
publication to find the full information. We give the whole references
hereunder to facilitate the research of the original articles.
Remarks:
In order to homogenize the presentation, we made approximations on
all data so that the catalogue is easily readable. If one needs more
accurate data one can look at the original publication.
For the galaxy M33, each region shows its own accurate coordinates.
For the other galaxies, we published the X,Y coordinates starting from
the centre of the galaxy. So, for these galaxies, one will find only
the same coordinates of the center of the galaxy for all HII regions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 81 2221 HII regions catalogue
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See also:
J/A+A/268/419 : HII Regions in NGC 4258 (Courtes+ 1993)
J/A+A/309/446 : HII Regions in M51 (Petit+, 1996)
J/A+AS/131/317 : NGC 7331 HII regions catalog (Petit 1998)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Galaxy Name of the galaxy
9- 14 A6 --- Object Object number (1)
15- 16 I2 h RAh Right ascension (1950) (2)
18- 19 I2 min RAm Right ascension (1950) (2)
21- 24 F4.1 s RAs Right ascension (1950) (2)
27 A1 --- DE- Declination sign
28- 29 I2 deg DEd Declination (1950) (2)
31- 32 I2 arcmin DEm Declination (1950) (2)
34- 35 I2 arcsec DEs ? Declination (1950) (2)
37- 40 I4 arcsec Xpos ? X value referred to galaxy centre (4) (3)
42- 45 I4 arcsec Ypos ? Y value referred to galaxy centre (4) (3)
47- 51 I5 10-19W/m2 FHa ? Hα flux value (4)
52 A1 --- n_FHa [*] *: FHa is not an absolute flux
56- 58 I3 arcsec Deff ? Effective diameter (4)
62- 64 I3 arcsec Dg ? Geometric diameter (4)
68- 69 I2 [10-7W] logL ? Log Luminosity (4)
76- 77 I2 arcsec xdim ? x dimension of HII region (for M33 only)
79- 81 I3 arcsec ydim ? y dimension of HII region (for M33 only)
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Note (1): Origin of the HII regions numbers:
M33 = Boulesteix et al., 1974A&A....37...33B 1974A&A....37...33B,
for numbers 1-1502 ()
Courtes et al., 1987A&A...174...28C 1987A&A...174...28C,
for numbers Z1-Z410 ()
M51 = Petit et al., 1996, Cat. J/A+A/309/446 (<[PHB96] NNN>)
M81 = Petit et al., 1988A&AS...74..475P 1988A&AS...74..475P ()
NGC 2403 = Sivan et al., 1990A&A...237...23S 1990A&A...237...23S (<[SPC90] NNN>)
NGC 4258 = Courtes et al., 1993, Cat. J/A+A/268/419 ([CPH93])
NGC 7331 = This paper
Note (2): Position of the galaxy centre, expect for M33, where the position
is that of the HII region.
Note (3): Xpos and Ypos are axes in the E-W and N-S directions respectively.
Note (4): No data for M 33.
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Acknowledgements:
H. Petit, Observatoire de Marseille, F13248 Marseille Cedex 04
(End) Patricia Bauer [CDS] 23-Apr-1998