J/A+A/375/989 JHK photometry of Praesepe low-mass stars (Bouvier+, 2001)
The formation and evolution of binary systems.
III. Low-mass binaries in the Praesepe cluster.
Bouvier J., Duchene G., Mermilliod J.-C., Simon T.
<Astron. Astrophys. 375, 989 (2001)>
=2001A&A...375..989B 2001A&A...375..989B
ADC_Keywords: Stars, double and multiple ; Clusters, open ; Stars, late-type ;
Photometry, infrared
Keywords: stars: binaries: close - Stars: formation -
stars: low-mass, brown dwarfs -
Galaxy: open clusters and associations: individual: Praesepe (M44)
Description:
File table 1 contains the list of low-mass Praesepe stars observed
with adaptive optics and which were not resolved as multiple systems.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 60 122 JHK photometry of non resolved Praesepe primaries
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See also:
J/A+AS/109/29 : Very low mass stars in Praesepe (Hambly+, 1995)
J/ApJ/521/682 : Binaries in the Praesepe and Coma clusters (Abt+, 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Name Source number in the BDA catalogue (1)
6- 7 I2 h RAh Right Ascension B1950 (hours) (1)
9- 10 I2 min RAm Right Ascension B1950 (minutes) (1)
12- 13 I2 s RAs Right Ascension B1950 (seconds) (1)
16 A1 --- DE- Declination B1950 (sign) (1)
17- 18 I2 deg DEd Declination B1950 (degrees) (1)
20- 23 F4.1 arcmin DEm Declination B1950 (minutes) (1)
26 A1 --- Filt [JHKh] Filter name (2)
28- 32 F5.2 mag mag Magnitude in filter
34- 38 A5 --- Run Observing run
40- 60 A21 --- Note Note (2)
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Note (1): Number assigned in the 'BDA' database of open clusters, see
http://obswww.unige.ch/webda/cgi-bin/cross.cgi?ngc2632
Numbers 1 to 577 are those of Klein-Wassink, 1927PGro...41....1K 1927PGro...41....1K
Numbers 710 to 779 are those of de Strobel, 1934, Astr. Nach. 253, 173
added of 700 (BDA = 700 + "de Strobel")
Numbers 3001 to 3765 are those of Jones & Stauffer, 1991AJ....102.1080J 1991AJ....102.1080J,
Cl* NGC 2632 JS NNN in Simbad, added of 3000 (BDA = 3000 + NNN)
Number 3815 is No. 448 of Artiukhina, 1966, Trudy Gosud. Astr. Inst.
Shternberga XXXIV, 181
Number 3858 is No. 1951 of Artiukhina, 1966, Trudy Gosud. Astr. Inst.
Shternberga XXXIV, 181
Note (2): h: H2 narrow-band filter (centered on the line v=1-0 s(1) at
2122nm, width 20nm)
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Acknowledgements: Jerome Bouvier
References:
Bouvier et al., Paper I 1997A&A...323..139B 1997A&A...323..139B
Duchene et al., Paper II 1999A&A...343..831D 1999A&A...343..831D
(End) Patricia Bauer, Francois Ochsenbein [CDS] 29-Jun-2001