J/A+AS/30/261 UBV and Radial Velocities of SMC Supergiants (Ardeberg+, 1977)
Observations of supergiant stars in the Small Magellanic Cloud
Ardeberg A., Maurice E.
<Astron. Astrophys. Suppl. Ser. 30, 261 (1977)>
=1977A&AS...30..261A 1977A&AS...30..261A
ADC_Keywords: Magellanic Clouds ; Stars, supergiant ; Photometry, UBV ;
Radial velocities ; MK spectral classification
Keywords: Small Magellanic Cloud - supergiant stars - MK classification -
radial velocities - UBV photometry
Abstract:
From observations at the European Southern Observatory, spectrographic
and photometric data are presented for 91 supergiant stars belonging
to the Small Magellanic Cloud and its Wing. The data include MK
classes for 52 stars, radial velocity data for 51 stars and UBV
photometry for 90 stars. In V the limiting magnitude for the
spectrographic observations is 13.7 and for the photometric
observations 13.9. Whenever possible, radial velocities for
interstellar CaII and [OII] have been measured and listed. In Remarks
to the Catalogue notes are given for the individual stars concerning
the obtained data and comparisons with results of previous
investigations.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
catalog.dat 100 92 Catalogue
notes.dat 80 566 Individual notes
--------------------------------------------------------------------------------
See also:
V/13 : Probable Members of the SMC (Azzopardi+ 1975, 1979)
J/A+A/304/347 : 40 field red supergiants in the SMC (Meliani+, 1995)
J/A+A/324/435 : Chemical composition of 6 K supergiants in the SMC (Hill 1997)
J/A+AS/142/41 : SMC X-ray sources ROSAT PSPC catalogue (Haberl+, 2000)
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- [AM77] [1-92] Star sequential number
4- 7 I4 --- HD ? HD (Cat. III/135) number
9- 10 I2 h RAh Right ascension (1975.0)
12- 15 F4.1 min RAm Right ascension (1975.0)
17 A1 --- DE- Declination sign (1975.0)
18- 19 I2 deg DEd Declination (1975.0)
21- 22 I2 arcmin DEm Declination (1975.0)
24- 28 F5.2 mag Vmag ? V magnitude
30- 34 F5.2 mag B-V ? B-V colour index
36- 40 F5.2 mag U-B ? U-B colour index
42- 43 I2 --- NESO ? Number of photometric measurements made
with the ESO 1 m telescope
45 I1 --- NBoc ? Number of photometric measurements made
with the Bochum-University 61 cm telescope
47- 56 A10 --- SpType MK spectral classification
58 A1 --- Note [*] Remark in notes.dat file
60 I1 --- o_SpType ? Number of spectrograms used for the spectral
classification
62- 65 I4 km/s RV ? Stellar radial velocity from absorption-line
spectrum
66- 67 A2 --- u_RV [: ] Uncertainty flag on RVs (1)
68 A1 --- n_RV [aeb] Note on RVs (2)
70 A1 --- Note2 [*] Remark in notes.dat file
72 I1 --- o_RV ? Number of spectrograms used for stellar
radial velocity determination
74- 77 I4 km/s RVi ? Radial velocity measured for interstellar
Ca II from K line
78 A1 --- u_RVi Uncertainty flag on RVi (low-quality measurement)
79 A1 --- Note3 [*] Remark in notes.dat file
81 I1 --- o_RVi ? Number of spectrograms used for interstellar
radial velocity determination
83- 86 I4 km/s RVn ? Radial velocity measured for nebular
emission lines
87 A1 --- u_RVn Uncertainty flag on RVn (low-quality measurement)
89 A1 --- Note4 [*] Remark in notes.dat file
91 I1 --- o_RVn ? Number of spectrograms used for nebular
radial velocity determination
94- 96 I3 --- Sk ? Star number from the catalogues of Sanduleak
(1968AJ.....73..246S 1968AJ.....73..246S, 1969AJ.....74..877S 1969AJ.....74..877S)
98-100 A3 --- RMC Star number from the catalogue of Feast et al.
(1960MNRAS.121..337F 1960MNRAS.121..337F)
--------------------------------------------------------------------------------
Note (1): A colon (:) indicates an uncertainty due to difficulties with the
observation or the measurement, or internal standard deviation in the
mean velocity (for one spectrogram) larger than 10km/s.
A double colon (::) indicates a considerable uncertainty or an
internal standard deviation in the mean velocity (for one
spectrogram) larger than 15km/s.
Note (2): Notes for Stellar radial velocity:
a: absorption-line radial velocity, with some information about the
emission-line radial velocity given in notes.dat file
e: radial velocity calculated also from the emission-line spectrum
b: For No 82, RVs= +126(B5), +171(F0)
--------------------------------------------------------------------------------
Table 2: Internal standard deviations for single observations of magnitudes and
colour indices for programme stars.
--------------------------------------------------------------------------------
V 10-11 11-12 12-13 13-14 >14
--------------------------------------------------------------------------------
σV (1m) (n) 0.013 (4) 0.010 (23) 0.011 (24) 0.010 (3) 0.054 (1)
σV (60cm) (n) 0.020 (4) 0.016 ( 9) 0.013 ( 6) 0.035 (1)
--------------------------------------------------------------------------------
B 10-11 11-12 12-13 13-14 >14
--------------------------------------------------------------------------------
σ(B-V) (1m) (n) 0.010 (5) 0.010 (26) 0.010 (27) 0.008 (3) 0.021 (1)
σ(B-V) (60cm)(n) 0.009 (4) 0.010 (11) 0.019 ( 6)
--------------------------------------------------------------------------------
U 10-11 11-12 12-13 >13
--------------------------------------------------------------------------------
σ(U-B) (1m) (n) 0.010 (15) 0.011 (29) 0.021 (16) 0.004 (1)
σ(U-B) (60cm)(n) 0.015 (10) 0.014 ( 6) 0.024 ( 5)
--------------------------------------------------------------------------------
Notes: n indicates number of observations. Unit of σ is magnitude.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: notes.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- [AM77] Star number
4- 80 A77 --- Note Text of the note
--------------------------------------------------------------------------------
History: Prepared via OCR at CDS.
References:
Gascoigne, 1954, in Problems of the Magellanic Clouds, The Composition of the
Clouds, Australian J. Sci. Suppl., 17, 23
Meinel et al., 1969, Catalogue of Emission Lines in Astrophysical Objects,
Universty of Arizona Tucson, Arizona.
Schmidt-Kaler, 1965, in Intrinsic Colors and Absolute Magnitudes,
Landolt-Boernstein: Numerical Data and Functional Relationships in
Science and Technology, Vol. 1, p. 297.
Westerlund, 1974, in Proceedings of the First European Astronomical Meeting,
Athens, Sept. 4-9, 1972, Vol,. 3, 39
(End) James Marcout, Patricia Bauer [CDS] 29-Mar-2000