J/ApJ/573/359 Rotational velocities of B stars from BSC (Abt+, 2002)
Rotational velocities of B stars.
Abt H.A., Levato H., Grosso M.
<Astrophys. J. 573, 359 (2002)>
=2002ApJ...573..359A 2002ApJ...573..359A
ADC_Keywords: Stars, early-type ; Stars, B-type ; Rotational velocities
Keywords: binaries: spectroscopic - diffusion - stars: early-type -
stars: peculiar - stars: rotation
Description:
The projected rotational velocities of 1092 northern B stars listed in
the Bright Star Catalogue (BSC, cat. V/50) have been observed with
the Kitt Peak 0.9m Coude feed telescope and 2.1 m coude spectrograph,
equipped with a 632 grooves/mm grating giving a resolution of 7.1km/s.
The rotational velocities were calibrated against the Slettebak et al.
(1975ApJS...29..137S 1975ApJS...29..137S) system. The comparison with the BSC velocities
shows that the published values of B dwarfs in the BSC average 27%
higher than those standards.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 69 1165 Rotational velocities and equivalent widths of
B stars
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See also:
V/50 : Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)
V/64 : Eighth Orbital Elements of Spectroscopic Binaries (Batten+ 1989)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- HR The HR (Cat. V/50) or BSC number
6- 11 I6 --- HD ? The HD (Cat. III/135) number
13- 30 A18 --- SpType MK Spectral type (1)
32- 34 I3 km/s vsini ? Derived projected rotational velocity (2)
38- 41 I4 0.1pm 4471EW ? He I (4471) equivalent width in milliÅ
42 A1 --- u_4471EW [:] Indicates an uncertain 4471EW value
45- 47 I3 0.1pm 4481EW ? Mg II (4481) equivalent width in milliÅ
48 A1 --- u_4481EW [:] Indicates an uncertain 4481EW value
50- 63 A14 --- Com Comments (3)
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Note (1): From Hofleit & Jaschek (1982, Cat. V/50).
Note (2): Averaged between the values obtained from 4471 and 4481Å.
Note (3): The comments give specific star identifications in doubles and
the following comment codes:
rot stnd = Slettebak et al. (1975ApJS...29..137S 1975ApJS...29..137S) standards;
SB10 = single lined spectroscopic binary orbit in
Batten, Fletcher & MacCarthy (1989, Cat. V/64);
SB20 = double lined spectroscopic binary orbit in
Batten, Fletcher & MacCarthy (1989, Cat. V/64);
n = broad line character;
s = sharp line character.
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History:
From electronic version of the journal
* 09-Dec-2002: 6 HD numbers corrected for
HR 1415, 2033, 2625, 7437, 7528, 8567
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 01-Oct-2002