Catalogue of Be Stars
(Jaschek and Egret 1982)
Documentation for the Computer-Readable Version
Anne C. Raugh
January 1989
Doc. No. STX-T-25-3005-0001-89
Contract NAS 5-28752
Prepared for:
National Aeronautics and Space Administration
Goddard Space Flight Center
Greenbelt, MD 20771
Prepared by:
ST Systems Corporation
4400 Forbes Blvd.
Lanham, MD 20706
Abstract
This document describes the computer-readable version of the Catalogue of Be
Stars (Jaschek and Egret 1982) distributed by the Astronomical Data Center,
NASA Goddard Space Flight Center. This catalog is a compilation of
observational data concerning 1,159 stars of type Be and is part of a larger
effort to produce the Catalogue of Stellar Groups, a list of stars grouped
according to spectral peculiarities. Listed for each star are identifications,
position, V, U-B, B-V, radial velocity, MK spectral classification with the
dispersion used, rotational velocity, and several flags indicating
miscellaneous information.
The catalog is in two files: the first lists the identifications,
coordinates, photometry, radial velocity, and MK spectral type; the second
includes additional identifications, rotational velocity, and miscellaneous
flags.
The present document describes the overall file structure and the individual
data fields.
1 Introduction
A copy of this document should be distributed with every copy of the
computer-readable catalog.
1.1 Description
The Catalogue of Be Stars (CBeS; Jaschek and Egret 1982) is a compilation of
data concerning stars of type Be. For the purposes of this compilation, a Be
star is defined as "a non-supergiant B star which showed emission in one Balmer
line at least once" (Jaschek and Egret 1982). Stars without published MK
spectral types have been excluded except for 132 stars from Bidelman and
MacConnell (1973), who used the above definition but included no spectral
types. 1,159 stars are included in this list.
The catalog is in two files. The first file lists the following information
for each star:
o Identifications: DM number or CSI key, Be star number, and HD number
o Equatorial and galactic coordinates
o V, U-B, B-V, and associated quality indices
o Radial velocity and quality index
o MK spectral type with dispersion used or quality index
The second file repeats the identifications and MK spectral types of the first
file in addition to the following information:
o Rotational velocity and probable error
o Two flags indicating whether the star is a visual or spectroscopic binary
o Three flags indicating in what other photometric system(s) the star has
been measured
o Star name and variable star name
1.2 Reference
Jaschek, M. and Egret, D. 1982, IAU Symposium No. 98, "Be Stars", eds.
M. Jaschek and H. G. Groth, p. 261.
1
2 Structure
2.1 Each File as a Whole
The CBeS consists of two files. Table 1 gives the machine-independent tape-
file attributes. All records are of fixed length. The first file lists the main
catalog data (Table 2), and the second file lists the additional information
(Table 3). Detailed descriptions of each file are given below.
Quotations in any of the following descriptions come from Catalogue of Be
Stars unless otherwise noted.
_______________________________________________________
| Catalogue of Be Stars (Jaschek and Egret 1982) |
|_______________________________________________________|
| | | Record | Record | Number of |
| File | Contents | Format | Length | Records |
|______|__________________|________|________|___________|
| 1 | Catalog | Fixed | 126 | 1,159 |
| 2 | Additional Info. | Fixed | 96 | 1,159 |
|______|__________________|________|________|___________|
Table 1: Summary Description of Catalog Files
2.2 Catalog (File 1 of 2)
This file lists the main catalog data.
DM/CSI number Durchmusterung numbers are indicated by "BD", "CD", or
"CP" in bytes 1-2, followed by the DM number in the form
SZZNNNNN, where S is the sign, ZZ is the declination
zone and NNNNN is the sequential number of the star
within the zone. Numbers from the Catalogue of Stellar
Identifications (CSI; Ochsenbein et al. 1981) are
indicated by blanks in bytes 1-2, followed by the CSI
number in the form SZZ-NNNNN, where S is the sign, ZZ is
the declination zone and NNNNN is the sequential number
of the star within the zone.
2
________________________________________________________
| | | Suggested | |
| Bytes | Units | Format | Data |
|_________|________|___________|_________________________|
| 1-11 | | A11 | DM/CSI number |
| 12 | | 1X | Blank |
| 13-21 | | A9 | Be star number |
| 22-28 | | I7 | HD number |
| 29 | | A1 | HD suffix |
| 30-32 | hr | I3 | Right ascension |
| 33-35 | min | I3 | |
| 36-40 | sec | F5.1 | |
| 41 | | A1 | Coordinate flag |
| 42 | | A1 | Declination sign |
| 43-44 | deg | I2 | Declination |
| 45-47 | arcmin | I3 | |
| 48-50 | arcsec | I3 | |
| 51-52 | | 2X | Blank |
| 53-58 | deg | F6.2 | Galactic longitude |
| 59 | | 1X | Blank |
| 60 | | A1 | Galactic latitude sign |
| 61-65 | deg | F5.2 | Galactic latitude |
| 66-71 | mag | F6.2 | V |
| 72 | | A1 | V uncertainty |
| 73 | | A1 | V flag |
| 74 | | A1 | V source |
| 75 | | A1 | V quality |
| 76-77 | | 2X | Blank |
| 78-82 | mag | F5.2 | B-V |
| 83-84 | | 2X | Blank |
| 85 | | A1 | B-V quality |
| 86-87 | | 2X | Blank |
| 88-92 | mag | F5.2 | U-B |
| 93-94 | | 2X | Blank |
| 95 | | A1 | U-B quality |
| 96-102 | km/s | F7.1 | Radial velocity |
| 103 | | 1X | Blank |
| 104 | | A1 | Radial velocity quality |
| 105 | | 1X | Blank |
| 106-108 | | A3 | Dispersion |
| 109 | | 1X | Blank |
| 110-126 | | A17 | MK spectral type |
|_________|________|___________|_________________________|
Table 2: Catalog Record Format
3
Be star number Star number from one of the following catalogs:
MWC Merrill, P. W. and Burwell, C. G. 1933,
Astrophys. J., 78, 87.
Merrill, P. W. and Burwell, C. G. 1943,
Astrophys. J., 98, 153.
Merrill, P. W. and Burwell, C. G. 1949,
Astrophys. J., 110, 387.
AS Merrill, P. W. and Burwell, C. G. 1950,
Astrophys. J., 122, 72.
Miller, W. C. and Merrill, P. W. 1951,
Astrophys. J., 113, 624.
Henize Henize, K. G. 1976, Astrophys. J. Suppl.
Ser., 30, 491.
HD number Number from the Henry Draper Catalogue (Cannon and
Pickering 1918-1924). The suffix is a single-character
code. "A" indicates the first component of a multiple
system; "/" indicates that the HD number is the first of
two consecutive HD numbers for a multiple system in
which only one spectrum is observable.
Equatorial coord. Equinox 1950.0. The coordinate flag is ":" to indicate
uncertainty in the coordinates.
V uncertainty ":" if the magnitude in bytes 66-71 is uncertain. D.
Egret (1987) notes that in general this "flags a
magnitude not given in the standard UBV system."
V flag "V" indicates the star is variable; "D" indicates that
the magnitude in bytes 66-71 is the integrated value for
both components of a binary system.
V source "*" if V is from the CSI; otherwise, the value is from
Nicolet (1978).
V quality In all but one case, a single-digit integer indicating
the quality of the V magnitude. The numbers range from 1
(poor) to 4 (very good). Record number 82 has the
undefined character "E" in this field.
4
B-V quality In all but one case, a single-digit integer in the range
1 (poor) to 4 (very good). Record number 82 has the
undefined character "E" in this field.
U-B quality In all but one case, a single-digit integer in the range
1 (poor) to 4 (very good). Record number 82 has the
undefined character "E" in this field.
Radial velocity These values are taken from Wilson (1953) and Evans
(1967), or from Abt and Biggs (1972) or Barbier (1975)
if no quality follows.
Rad. vel. quality Single character in the range A-F, as listed in Evans
(1967). "A" represents the best quality.
Dispersion Dispersion used to determine the MK spectral type, or a
quality for the spectral type. When byte 108 contains
"/", the MK spectral type comes from Jaschek (1978) and
bytes 106-107 indicate the dispersion used:
P Prism
OP Objective prism
G Grating
When this field contains a quality number, the spectral
type is from the Michigan Spectral Survey (MSS; Houk and
Cowley 1975, Houk 1978) and this field contains the
spectral type quality, using the following codes:
1..4 Quality in the range 1 (very good) to 4 (poor)
+ The MK spectral type was found in the literature
and not derived by N. Houk for the MSS.
X Overlap
When this field is blank, the MK spectral type came from
a source other than Jaschek (1978), Kennedy (1980), or
the MSS. These sources include the following:
5
Andersen, J. and Nordstrom, B. 1977, Astron. Astrophys.
Suppl. Ser., 29, 309.
Andersen, J. and Nordstrom, B. 1979, Inf. Bull. CDS,
15, 39.
Graham, J. A. 1970, Astron. J., 75, 703.
Henize, K. 1976, Astrophys. J. Suppl. Ser., 30, 490.
Jaschek, M., Hubert-Delplace, A.-M., Hubert, H., and
Jaschek, C. 1980, Astron. Astrophys. Suppl. Ser.,
42, 103.
Lesh, J. R. 1968, Astrpohys. J. Suppl. Ser., 17, 371.
Uesugi, A. 1976, A Revised Catalogue of Stellar Rota-
tional Velocities, preliminary edition, preprint.
2.3 Additional Information (File 2 of 2)
This file repeats the identification and MK spectral type information of
the first file and adds the rotational velocity data and a number of flags
indicating miscellaneous information about each object.
DM/CSI number See the description in Section 2.2.
Be star number Star number in the MWC, AS, or Henize catalogs (see
Section 2.2).
HD number See the description in Section 2.2.
Dispersion See the description in Section 2.2.
Rotational velocity The sources for this value and the associated error are
Bernacca and Perinotto (1973), Uesugi and Fukuda (1970),
and Uesugi (1976, preliminary version).
Rot. vel. prob. error Probable error in the rotational velocity in bytes
52-54, in km/s and enclosed in parentheses, "()".
Visual binary flag "*" if the object is a visual binary from the ADS (1932)
or IDS (1963).
6
____________________________________________________
| | | Suggested | |
| Bytes | Units | Format | Data |
|________|_______|___________|_______________________|
| 1-11 | | A11 | DM/CSI number |
| 12 | | 1X | Blank |
| 13-21 | | A9 | Be star number |
| 22-28 | | I7 | HD number |
| 29 | | A1 | HD suffix |
| 30 | | 1X | Blank |
| 31-33 | | A3 | Dispersion |
| 34 | | 1X | Blank |
| 35-50 | | A16 | MK spectral type |
| 51 | | 1X | Blank |
| 52-54 | km/s | I3 | Rotational velocity |
| 55 | | 1X | Blank |
| 56 | | A1 | "(" or blank |
| 57-58 | km/s | I2 | Rot. vel. prob. error |
| 59 | | A1 | ")" or blank |
| 60 | | 1X | Blank |
| 61 | | A1 | Visual binary flag |
| 62 | | 1X | Blank |
| 63 | | A1 | Spectroscopic binary |
| 64 | | 1X | Blank |
| 65 | | A1 | uvby photometry flag |
| 66 | | 1X | Blank |
| 67 | | A1 | UBVRIJKLMN flag |
| 68 | | 1X | Blank |
| 69 | | A1 | UV measurement flag |
| 70 | | 1X | Blank |
| 71-85 | | A15 | Star name |
| 86 | | 1X | Blank |
| 87-96 | | A10 | Variable star name |
|________|_______|___________|_______________________|
Table 3: Additional Information Record Format
7
Spectroscopic binary "*" if the object is a spectroscopic binary with a known
orbit (Batten 1967).
uvby photometry flag "*" if the object appears in Hauck and Mermilliod
(1975, edition of 1976).
UBVRIJKLMN flag "*" if the object appears in Morel and Magnenat (1978).
UV measurement flag "*" if the object was observed by Celescope (Davis et
al. 1973).
Star name Beyer-Flamsteed designation.
Variable star name Star name from Kukarkin et al. (1969).
3 History
3.1 Remarks and Modifications
The Catalogue of Be Stars (CBeS) was received by the Astronomical Data
Center (ADC), NASA Goddard Space Flight Center, from the Centre de Donnees
Astronomiques, Strasbourg (CDS), in November 1982.
The original tape consisted of two text files in a format similar to that
described above. Eight bytes containing the file identifier were removed from
the beginning of every record in both files, and leading and trailing blanks
were trimmed to reduce the record size from 140 bytes in both files to 126
bytes in the first file and 96 bytes in the second file.
In the first file, the V magnitudes were shifted one byte to the left to
allow the V uncertainty flag to be separated from the numeric field. In the
second file, the left parenthesis sometimes occurring within the rotational
velocity probable error field was moved outside that field to enable the error
field to be read with the indicated FORTRAN format.
A FORTRAN program was run to check the validity of each field according to
its data type and value. As a result, several non-numeric values were
discovered in numeric fields of records in the first file. The character ":"
found in the V quality field of records number 568, 753, and 827 was moved to
the V uncertainty field. Record number 82 had the undefined character "E" in
all three quality fields (V, B-V, and U-B). This record was left unchanged.
8
3.2 References for the Documentation
Abt, H. A. and Biggs, E. S. 1972, Bibliography of Stellar Radial Velocities
(Kitt Peak Nat. Obs.).
Aitken, R. G. 1932, Carnegie Inst. of Washington, Publ. No. 417 (ADS;
Washington).
Barbier, M. 1975, Bull. Inform. CDS, 8, 12.
Batten, A. H. 1967, Publ. Dominion Astrophys. Obs., 13, 119.
Bernacca, P. L. and Perinotto, M. 1973, Contrib. Oss. Astrofis. Univ. Padova,
239, 250, 294.
Bidelman, W. P. and MacConnell, D. J. 1973, Astron. J., 78, 687.
Cannon, A. J. and Pickering, E. C. 1918-1924, The Henry Draper Catalogue, Ann.
Astron. Obs. Harvard College 91-99.
Davis, R. J., Deutschman, W. A., and Haramundanis, K. L. 1973, Celescope
Catalog of Ultraviolet Stellar Observations, SAO Special Report 350 (on
magnetic tape; Washington, D.C.: Smithsonian Institution).
Egret, D. 1987, private communication.
Evans, D. S. 1967, I.A.U. Symp. 30, 57, ed. A. H. Batten and J. F. Heard.
Hauck, B. and Mermilliod, M. 1975, Astron. Astrophys. Suppl. Ser., 22, 235.
Houk, N. and Cowley, A. P. 1975, Michigan Catalogue of 2-dimensional Spectral
Types for HD Stars, Vol. I. (MSS; University of Michigan).
Houk, N. 1978, Michigan Catalogue of 2-dimensional Spcetral Types for HD Stars,
Vol., II (MSS; University of Michigan).
Jaschek, M. 1978, Bull. Inform. CDS, 15, 121.
Jaschek, M. and Egret, D. 1982, IAU Symposium No. 98, "Be Stars", eds. M.
Jashek and H. G. Groth, 261.
Jeffers, H. M., van den Bos, W. H., and Greeby, F. M. 1963, Publ. Lick Obs.,
21, 17 (IDS).
Kennedy, P. M. 1980, MK Classification Extension (Mt. Stromlo Obs.).
9
Kukarkin, B. V., Kholopov, P. N., Efremov, Yu. N., Kukarkina, N. P., Kurochkin,
N. E., Medvedeva, G. I., Perova, N. B., Fedorovich, V. P., and Frolov, M. S.
1969, General Catalogue of Variable Stars (3rd edition; Moscow: Publishing
House of the Academy of Sciences of the U.S.S.R.).
Morel, M. and Magnenat, P. 1978, Astron. Astrophys. Suppl. Ser., 34, 477.
Nicolet, B 1978, Astron. Astrophys. Suppl. Ser., 34, 1.
Ochsenbein, F., Bischoff, M., and Egret, D. 1981, Astron. Astrophys. Suppl.
Ser., 43, 259 (CSI).
Uesugi, A. and Fukuda, I. 1970, Contrib. Inst. Astrophys. Kwasan Obs. Kyoto,
189.
Uesugi, A. 1976, A Revised Catalogue of Stellar Rotational Velocities, pre-
liminary edition, preprint.
Wilson, R. F. 1953, General Catalogue of Stellar Radial Velocities, Carnegie
Institute of Washington Publ. 601.
10