J/ApJS/89/85 Blue and red supergiants in M33 (Ivanov+ 1993)
A catalog of blue and red supergiants in M33.
Ivanov G.R., Freedman W.L., Madore B.F.
<Astrophys. J. Suppl. Ser. 89, 85 (1993)>
=1993ApJS...89...85I 1993ApJS...89...85I (SIMBAD/NED BibCode)
ADC_Keywords: Photometry, UBV ; Stars, blue ; Stars, supergiant
Keywords: catalogs - galaxies: individual (M 33) - galaxies: stellar content -
supergiants - techniques: photometric
Description:
We present a catalog of blue and red stars in M33 based on
photographic photometry of over 65,000 objects extracted from plates
taken with the 3.6m Canada-France-Hawaii Telescope (CFHT) and the 2.0m
Rozhen (Bulgarian) Telescope. The completeness limit of the various
surveys are estimated here to be V=19.5mag for those stars situated in
crowed associations, and V=20.0mag for stars in the interarm fields.
We list magnitudes and positions for 2112 blue stars, defined by
(U-V)<0.0mag, and V<19.5mag, and 389 red stars defined by (B-V)>1.8mag
and V<19.5mag. Of these, 1156 are candidate O stars on the basis of
(U-V)←0.9mag.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2 70 2112 Catalog of blue stars in M 33
table3 45 389 A catalog of red stars in M33
table4 58 61 The bright blue stars in M33 with V < 17.0
table5 58 43 A subset of multiple objects from Table 2
table6 58 101 A subset of nonstellar objects from Table 2
table7 58 36 A subset of candidate WR stars from Table 2
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2 table4 table5 table6 table7
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- IFM-B [1/2126] += Running number assigned according
to increasing right ascension
5 A1 --- m_IFM-B Multiplicity index on IFM-B
7- 8 I2 h RAh Right ascension (1950.0)
10- 11 I2 min RAm Right ascension (1950.0)
13- 16 F4.1 s RAs Right ascension (1950.0)
18 A1 --- DE- Declination sign
19- 20 I2 deg DEd Declination (1950.0)
22- 23 I2 arcmin DEm Declination (1950.0)
25- 26 I2 arcsec DEs Declination (1950.0)
28- 32 F5.2 mag Vmag Photographic V magnitude
34- 38 F5.2 mag B-V B-V colour index
40- 44 F5.2 mag U-B U-B colour index
46- 54 A9 --- Rem Remarks (1)
56- 58 I3 --- Assoc. ? Number of the OB association in which the
object can be found
60- 61 I2 --- Assoc.2 ? Second association number when the object
is in two ones
63- 70 A8 --- Fig Number of figures (Figs 5-11; Figs12-22) on
which the object can be identified
--------------------------------------------------------------------------------
Note (1): B: a blue star as catalogued and numbered in
Humphreys & Sandage (1980ApJS...44..319H 1980ApJS...44..319H
n: nonstellar (probably a cluster or H II region in M 33
M: multiple object
WR: candidate Wolf-Rayet star
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- IFM-R Sequential number
5- 6 I2 h RAh Right ascension (1950.0)
8- 9 I2 min RAm Right ascension (1950.0)
11- 14 F4.1 s RAs Right ascension (1950.0)
16- 17 I2 deg DEd Declination (1950.0)
19- 20 I2 arcmin DEm Declination (1950.0)
22- 23 I2 arcsec DEs Declination (1950.0)
25- 29 F5.2 mag Vmag Photographic V magnitude
31- 34 F4.2 mag B-V B-V colour index
36- 40 A5 --- Rem Remarks (1)
42- 45 A4 --- Fig Number of figures on which the object can be
identified
--------------------------------------------------------------------------------
Note (1): R: a red star as catalogued and numbered in
Humphreys & Sandage (1980ApJS...44..319H 1980ApJS...44..319H)
Q: Object of unknown nature Humphreys & Sandage (1980ApJS...44..319H 1980ApJS...44..319H)
B: a blue star as catalogued and numbered in Humphreys & Sandage
(1980ApJS...44..319H 1980ApJS...44..319H)
--------------------------------------------------------------------------------
Acknowledgements: Barry Madore
(End) Patricia Bauer [CDS] 12-Nov-1996