III/235B Spectroscopically Identified White Dwarfs (McCook+, 2008)
A Catalogue of Spectroscopically Identified White Dwarfs (Version May 2008)
McCook G.P., Sion E.M.
<Astrophys. J. Suppl. Ser. 121, 1 (1999)>
=1999ApJS..121....1M 1999ApJS..121....1M
ADC_Keywords: Stars, white dwarf
Description:
This is an update of the Villanova catalog published in the ApJS
paper, corresponding to the Web version of the catalog in August 2006
(see http://www.astronomy.villanova.edu/WDCatalog/index.html). The
introduction to the 1999 catalog is in the file "preface.tex".
This version includes many additions and corrections to the original
4th edition: additional entries (555 newly discovered white dwarfs),
additional data for previously known white dwarfs (marked in the
catalog); new SDSS photometry has also been added. The total number
of white dwarfs in this version is 5557.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
preface.tex 97 840 Introduction by G.P. McCook and E.M. Sion
catalog.dat 240 20602 Data for the White Dwarfs
names.dat 26 27033 Cross-identifications of White Dwarfs
notes.dat 281 521 Notes for stars flagged in "catalog.dat"
refs.dat 229 632 References mentioned in file "catalog.dat"
--------------------------------------------------------------------------------
See also:
http://www.astronomy.villanova.edu/WDCatalog/index.html : The Web WD Catalog
home page.
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- New [Nc] for a New star, c for corrected position
2- 11 A10 --- WD White Dwarf (WD) number (1)
12 A1 --- n_WD [*] Name originally J-based (7)
13- 14 I2 h RAh ?Hours RA, Equinox=B1950, Epoch=1950.0 (2)
16- 17 I2 min RAm ?Minutes RA, Equinox=B1950, Epoch=1950.0 (2)
19- 20 I2 s RAs [0/60]? Seconds RA (2)
22 A1 --- DE- ?Declination sign (2)
23- 24 I2 deg DEd ?Degrees Dec, Equinox=B1950, Epoch=1950.0 (2)
26- 29 F4.1 arcmin DEm ?Minutes Dec, Equinox=B1950, Epoch=1950.0 (2)
30 A1 --- --- [C] indicates a corrected position
31- 39 A9 --- SpType Spectral type (definitions in the paper,
or in file "preface.tex").
40 A1 --- bNote [*b?] 'b' if white dwarf is member of binary,
'*' indicates a note in file "notes.dat"
41 A1 --- --- [(] Left bracket enclosing the reference
42- 43 A2 --- r_SpType Reference code for spectral type
44 A1 --- --- [)] Right bracket enclosing the reference
45 A1 --- M1 [NACU] Modifications of spectral type (6)
46- 71 A26 --- Names Other names for this star, see table Names
72- 76 F5.2 mag Vmag ?V or other magnitude (see n_Vmag)
77 A1 --- u_Vmag Uncertainty flag (:) on Vmag
78- 79 A2 --- n_Vmag [pgBv ] v = multichannel V, pg = photographic,
B = Johnson B
80- 85 F6.3 mag B-V ?B-V color in the UBV system
86 A1 --- u_B-V Uncertainty flag (:) on B-V color
87- 89 A3 --- col Color class from Lowell or Luyten PM surveys
90- 95 F6.3 mag U-B ?U-B color in the UBV system
96 A1 --- u_U-B Uncertainty flag (:) on U-B color
97 A1 --- --- [(] Left bracket enclosing the reference
98- 99 A2 --- r_Vmag Wide band photometry reference code
100 A1 --- --- [)] Right bracket enclosing the reference
101 A1 --- M2 [NACU] Modifications of UBV magnitudes (6)
102-106 F5.2 mag Vsphot ?V mag from multichannel spectrophotometry
108-112 F5.2 mag (g-r) ?g-r color from spectrophotometry
113 A1 --- u_(g-r) Uncertainty flag (:) on g-r
114 A1 --- --- [(] Left bracket enclosing the reference
115-116 A2 --- r_Vsphot Multichannel spectrophotometry reference code
117 A1 --- --- [)] Right bracket enclosing the reference
118 A1 --- M3 [NACU] Modifications of Vsphot (6)
119-124 F6.3 mag ymag ?y mag from ubvy photoelectric observations
125-130 F6.3 mag b-y ?b-y color from uvby
131 A1 --- u_b-y Uncertainty flag (:) on b-y
132-137 F6.3 mag u-b ?u-b color from uvby
138 A1 --- --- [(] Left bracket enclosing the reference
139-140 A2 --- r_ymag uvby photoelectric photometry reference code
141 A1 --- --- [)] Right bracket enclosing the reference
142 A1 --- M4 [NACU] Modifications of uvby photometry (6)
144-148 F5.2 mag AbsMag ?Absolute visual (or B) magnitude (3)
149 A1 --- f_AbsMag [:B] uncertainty flag or B AbsMag (3)
151-153 I3 kK Teff ?Effective temperature
154 A1 --- --- [(] Left bracket enclosing the method
155-156 A2 --- n_AbsMag Method of calculation of AbsMag (5)
157 A1 --- --- [)] Right bracket enclosing the method
158 A1 --- M5 [NACabc] Modification of AbsMag (6)
159 A1 --- l_pm [~<] Limit flag on pm
160-165 F6.4 arcsec/yr pm ?Total proper motion
166 A1 --- u_pm [:!0123] Uncertainty flag (:) on pm,
problem on proper motion (!),
or Estimated proper motion (4)
168-172 F5.1 deg pmPA ?Position angle of proper motion vector
173 A1 --- --- [(] Left bracket enclosing the reference
174-175 A2 --- r_pm Proper motion reference code
176 A1 --- --- [)] Right bracket enclosing the reference
177 A1 --- M6 [NAC] New line, Additional or Corrected pm
178-183 F6.1 km/s RadVel ?Radial velocity
184 A1 --- --- [(] Left bracket enclosing the reference
185-186 A2 --- r_RadVel Radial velocity reference
187 A1 --- --- [)] Right bracket enclosing the reference
188 A1 --- M7 [NAC] Modification of RadVel (6)
189-195 F7.4 arcsec Plx ?Trigonometric parallax
196-200 F5.1 mas e_Plx ?Reported mean error of parallax
201 A1 --- --- [(] Left bracket enclosing the reference
202-203 A2 --- r_Plx Parallax reference code
204 A1 --- --- [)] Right bracket enclosing the reference
205 A1 --- M8 [NACU] Modification of parallax (6)
207-211 F5.2 mag gmag ?SDSS green magnitude
212 A1 --- u_gmag [*:] questionable (*) or uncertain (:) SDSS
photometry
213-217 F5.2 mag u-g ?SDSS Color Index
219-223 F5.2 mag g-r ?SDSS Color Index
225-229 F5.2 mag r-i ?SDSS Color Index
231-235 F5.2 mag i-z ?SDSS Color Index
236 A1 --- --- [(] Left bracket enclosing the reference
237-238 A2 --- r_gmag SDSS colors reference
239 A1 --- --- [)] Right bracket enclosing the reference
240 A1 --- M9 [NAC] Modification of SDSS photometry (6)
--------------------------------------------------------------------------------
Note (1): Stars having identical catalog numbers, whether binary or not,
are distinguished by using the designations .1 and .2 in
bytes 9-10
Note (2): The positions have quite various precisions; generally speaking
most of the older stars have 1950 coordinates accurate to the arcmin
from the references, while newer WDs have 2000 coordinates in the
reference which were precessed back to 1950 and rounded to a 0.1arcmin
accuracy. No correction has been made for proper motion.
Note (3): For DO and DOZ white dwarfs, AbsMag is a directly derivable
effective temperature value. These are given in units of 103 K
A ':' for uncertain AbsMag may appear also (WD 0736+053);
the 'B' indicates an absolute B magnitude.
Note (4): In cases where only an estimated proper motion is reported in
the Lowell proper-motion surveys, the "pm" field is blank and a
corresponding code is given there in "Epm" field. These codes are
defined in Giclas et al. (1967, 1970) and are the following:
0: Stars of blue color whose motions are too small to definitely
verify on all plates.
1: pm ≤ 0.1 arcsec/yr
2: 0.1 ≤ pm < 0.2 arcsec/yr
3: 0.2 ≤ pm < 0.26 arcsec/yr
Note (5): The codes to indicate the method of calculation of
the absolute magnitude are:
1 = trigonometric parallax (>0.1arcsec)
2 = multichannel spectrophotometric colors
3 = uvby (Stroemgren) colors
4 = UBV photometry
5 = Teff value from Wesemael, Green and Liebert (1993PASP..105..761W 1993PASP..105..761W),
Werner and Heber (1992, in "The Atmospheres of Early-Type stars",
ed. U. Heber & S. Jeffrey, Springer, p. 273) or
Napiwotzki and Schonberner (1991, in "White Dwarfs", ed.
G. Vauclair and E.M. Sion, NATO ASI Series, Series C, 336:
Dordrecht, Kluwer, p. 39)
6 = Liebert, Dahn and Monet (1988ApJ...332..891L 1988ApJ...332..891L)
7 = Bergeron, Ruiz and Leggett (1997ApJS..108..339B 1997ApJS..108..339B)
8 = Liebert et al., (1997, in "White Dwarfs", ed. J.Isern, M. Hernanz &
Garcia-Berro, Dordrecht: Kluwer, p. 85)
9 = Smith (1998, Ph.D Thesis, Florida Institute of Technology,
Melbourne, Fl.)
Note (6): modifications since the publication:
N=New, A=Additional, C=Corrected, U=Updated
Lowercase letters indicate components in the case of degenerate
systems (1824+040)
Note (7): Some recently published new white dwarfs were assigned a name
based on J2000 position. Such names were transformed into B1950-based
WD names by applying the appropriate precession.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: names.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 A13 --- Name Common name of the object
15- 16 A2 --- --- [WD] Prefix of catalog
17- 26 A10 --- WD White Dwarf (WD) number
--------------------------------------------------------------------------------
Byte-by-byte Description of file: notes.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 3 A2 --- --- [WD] Prefix of catalog
4- 13 A10 --- WD White Dwarf (WD) number
16-281 A266 --- Notes Text of note for this star
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 A2 --- RefCode Reference code
4- 22 A19 --- BibCode CDS/ADS/NED BibCode
24-229 A206 --- Text Text of reference
--------------------------------------------------------------------------------
Acknowledgment:
This 1998 version 2 of the White Dwarf Catalog by G. McCook and E.M. Sion
last revision June 8, 1999 was copied from
ftp://astro1.ast.vill.edu/pub/mccook/.
History:
* 16-May-2003: WD 2226+210 (central star of Helix Nebula) was corrected
into WD 2226-210, and position
* 30-Aug-2006: Version August 2006 (III/235A) from G. McCook.
* 25-May-2008: Version May 2008 (III/235B) from G. McCook.
References:
Giclas, H. L., Burnham, R. Jr., and Thomas, N. G. 1967,
Lowell Obs. Bull. No. 141.
Giclas, H. L., Burnham, R. Jr., and Thomas, N. G. 1970,
Lowell Obs. Bull. No. 153.
McCook, G.P.,and Sion, E.M. 1977, A Catalogue of Spectroscopically
Identified White Dwarfs, 1st Edition, Villanova Univ. Obs. Contr. No.2
McCook, G.P. and Sion, E.M. 1977, A Catalogue of Spectroscopically
Identified White Dwarfs, 2nd Edition, Villanova Univ. Obs. Contr. No.3.
McCook, G.P., and Sion, E.M. 1987, Astrophys. J. Suppl. Ser. 65, 603.
=1987ApJS...65..603M 1987ApJS...65..603M
(End) Francois Ochsenbein [CDS] 30-Aug-2006