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J/MNRAS/313/347 Pleiades low-mass stars and brown dwarfs (Pinfield+, 2000)
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A six-square-degree survey for Pleiades low-mass stars and brown dwarfs.
Pinfield D.J., Hodgkin S.T., Jameson R.F., Cossburn M.R., Hambly N.C.,
Devereux N.
<Mon. Not. R. Astron. Soc. 313, 347 (2000)>
=2000MNRAS.313..347P (SIMBAD/NED BibCode)
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ADC_Keywords: Clusters, open ; Populations, stellar ; Photometry
Keywords: surveys - stars: low-mass, brown dwarfs -
open clusters and associations: individual: Pleiades
Abstract:
We present the results of a six-square-degree Pleiades survey in I and
Z, which is photometrically complete to approximately I_KP_=19.2
(I_Cou_=19.6 in the Pleiades). We remove non-cluster contamination on
the basis of proper motions and infrared photometry, and present 339
candidate cluster members, 30 of which are fainter than I_KP_=17.5,
and are thus strong brown-dwarf candidates.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea2.dat 48 339 Burrell Pleiades (BPl) candidates.
tablea3.dat 40 170 BPl alternative names
tablea4.dat 28 17 Infrared photometry from Steele et al.
(1993MNRAS.263..647S)
tablea5.dat 95 30 BPl brown dwarf candidates
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Table A1: List of references of previous surveys that were cross checked
with our survey objects.
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Prefix Simbad Bibcode Authors
ACRO
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TRU 1921LicOB..10..110T Trumpler
1947AnLei..19a...1H Hertzsprung
ALR 1965PROE....3..181A Ahmad et al.
AK 1970TrSht..39..111A Artyukhina & Kalinina
t/b 1981AJ.....86..290J Jones
hcg HCG 1982BITon...3....3H Haro et al. Cat. <II/131>
PPL PPl 1989ApJ...344L..21S Stauffer et al.
sk/klem 1991AJ....101..980S Stauffer et al.
hhj HHJ 1993A&AS..100..607H Hambly et al. Cat. <J/A+AS/100/607>
PPL PPL 1994AJ....108..155S Stauffer et al.
NOT 1997A&A...322..455F Festin
1997MNRAS.288L..23C Cossburn et al.
Roque Roque 1997ApJ...491L..81Z Zapatero-Osorio et al.
Teide/Calar Calar 1997A&A...317..164Z Zapatero-Osorio et al.
cfht-pl CFHT 1998A&A...336..490B Bouvier et al.
NPL NPL 1998A&A...333..497F Festin
Teide Teide 1998ApJ...499L..61M Martin et al.
IPMBD IPMBD 1999MNRAS.303..835H Hambly et al.
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Notes: the Prefixes are taken from the papers, and used in Table A5.
If no prefix is given, it means that no matches were found.
In Simbad, the denomination is Cl* Melotte 22 "ACRO" NNNN.
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- T [3-5 ] If the object is present in an other
table, number of this table
4- 10 A7 --- BPL BPL designation (BPL NNN)
Cl* Melotte 22 BPl NNN in Simbad
11- 12 I2 h RAh Right ascension (J2000)
14- 15 I2 min RAm Right ascension (J2000)
17- 21 F5.2 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24- 25 I2 deg DEd Declination (J2000)
27- 28 I2 arcmin DEm Declination (J2000)
30- 33 F4.1 arcsec DEs Declination (J2000)
35- 39 F5.2 mag Imag I_KP_ magnitude
41- 44 F4.2 mag I-Z I-Z_KP_ colour index (1)
46- 48 F3.1 --- {sigma}pm ? Distance, in the proper-motion vector-point
diagram, between the star and the Pleiades;
the distance is expressed in units of the
68 per cent confidence limit on the
proper-motion measurements
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Note (1): Z filter was from the Gunn photometric system (see Schneider,
Gunn & Hoessel, 1983ApJ...264..337S)
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Byte-by-byte Description of file: tablea3.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- BPL BPL designation (BPL NNN)
9- 40 A32 --- Names Other names separated by comma (1)
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Note (1): See table A1 for abbreviations
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Byte-by-byte Description of file: tablea4.dat
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Bytes Format Units Label Explanations
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1 A1 --- T [3] All stars also in tablea3
3- 9 A7 --- BPL BPL designation
12- 16 F5.2 mag Jmag J magnitude (+/-0.02)
18- 22 F5.2 mag Hmag H magnitude (+/-0.02)
24- 28 F5.2 mag Kmag K magnitude (+/-0.02)
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Byte-by-byte Description of file: tablea5.dat
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Bytes Format Units Label Explanations
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1 A1 --- T [3] 3: object also in tablea3.dat
3- 9 A7 --- BPL BPL designation (BPL NNN)
11- 12 I2 h RAh Right ascension (J2000)
14- 15 I2 min RAm Right ascension (J2000)
17- 21 F5.2 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24- 25 I2 deg DEd Declination (J2000)
27- 28 I2 arcmin DEm Declination (J2000)
30- 33 F4.1 arcsec DEs Declination (J2000)
35- 39 F5.2 mag Imag I_KP_ magnitude
41- 42 I2 0.01mag e_Imag rms uncertainty on Imag
44- 47 F4.2 mag I-Z I-Z_KP_ colour index
49- 50 I2 0.01mag e_I-Z rms uncertainty on I-Z
52- 56 F5.2 mag Jmag ? J magnitude
58 I1 0.01mag e_Jmag ? rms uncertainty on Jmag
60- 64 F5.2 mag Hmag ? H magnitude
66 I1 0.01mag e_Hmag ? rms uncertainty on Hmag
68- 72 F5.2 mag Kmag ? K magnitude
74- 75 I2 0.01mag e_Kmag ? rms uncertainty on Kmag
77- 79 F3.1 --- {sigma}pm ? Number of s between the position of an
object and the position of the Pleiades,
in the proper-motion vector-point diagram,
where s is the 68 per cent confidence limit
on the proper-motion measurements
81- 95 A15 --- Spec.flag Spectral flag (1)
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Note (1): This column shows to what extent, if any, a candidate has been
spectroscopically studied by other authors.
The following spectroscopic features are considered; spectral type,
radial velocity, surface gravity indicators and lithium absorption.
Candidates are flagged with s, v, g and l respectively, if these
features have been found to be consistent with cluster membership.
It is noted that none of the candidates have been spectroscopically
eliminated as cluster candidate members. The superscripted numbers
after these spectroscopic flags indicate which source the information
comes from, as follows;
2 = Rebolo et al. (1996ApJ...469L..53R),
3 = Martin et al. (1996ApJ...469..706M),
4 = Zapatero Osorio et al.
(1997ApJ...491L..81Z and 1997A&A...317..164Z),
5 = Martin et al. (1998ApJ...499L..61M),
6 = Stauffer et al. (1998ApJ...499L.199S),
7 = Martin et al. (1998ApJ...507L..41M).
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History: From MNRAS electronic version
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(End) James Marcout, Patricia Bauer [CDS] 29-May-2000