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J/AJ/125/3302   HST binary very low mass stars and brown dwarfs   (Gizis+, 2003)

Hubble Space Telescope observations of binary very low mass stars and brown dwarfs. Gizis J.E., Reid I.N., Knapp G.R., Liebert J., Kirkpatrick J.D., Koerner D.W., Burgasser A.J. <Astron. J. 125, 3302 (2003)> =2003AJ....125.3302G
ADC_Keywords: Stars, double and multiple ; Stars, dwarfs ; Photometry, infrared Keywords: binaries: general - stars: low-mass, brown dwarfs Abstract: We present analysis of Hubble Space Telescope (HST) images of 82 nearby field late M and L dwarfs. We resolve 13 of these systems into double M/L dwarf systems and identify an additional possible binary. Description: Targets for snapshot WFPC2 imaging with HST were chosen from the list of 2MASS-selected late M dwarfs (Gizis et al., 2000AJ....120.1085G) and L dwarfs (Kirkpatrick et al., 1999ApJ...519..802K, 2000AJ....120..447K) and from late M and L dwarfs identified from the initial regions covered by SDSS (Fan et al., 2000AJ....119..928F; Schneider et al., 2002AJ....123..458S; Hawley et al., 2002, Cat. J/AJ/123/3409). A few 2MASS and SDSS objects included have not yet been described in publications. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 101 82 Target Systems table2.dat 103 14 Doubles
See also: J/AJ/123/3409 : SDSS M, L, and T dwarfs (Hawley+, 2002) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 25 A25 --- Name Object name 26 A1 --- n_Name [*] *: 2MASS object not yet described in publication 28- 33 F6.3 mag Imag The I-band magnitude 35- 40 F6.3 mag Zmag ? The Z-band magnitude (1) 42- 47 F6.3 mag Jmag The J-band magnitude 49- 54 F6.3 mag Hmag The H-band magnitude 56- 61 F6.3 mag Ksmag The Ks band magnitude 63- 67 F5.3 mag e_Imag Error in Imag 69- 73 F5.3 mag e_Zmag ? Error in Zmag (1) 75- 79 F5.3 mag e_Jmag Error in Jmag 81- 85 F5.3 mag e_Hmag Error in Hmag 87- 91 F5.3 mag e_Ksmag Error in Ksmag 93- 97 F5.1 pc Dist Distance 99 I1 --- Num Number of stars in the system 101 A1 --- Ref Reference (2)
Note (1): Some values are null because of cosmic-ray hits. It is possible that low-level cosmic ray hits might also affect other targets, especially the Z band. Note (2): References are as follows: a = Dahn et al., 2002AJ....124.1170D b = Fan et al., 2000AJ....119..928F c = Gizis et al., 2000AJ....120.1085G d = Hawley et al., 2002AJ....123.3409H, Cat. J/AJ/123/3409 e = Kirkpatrick et al., 1999ApJ...519..802K f = Kirkpatrick et al., 2000AJ....120..447K g = Schenider et al., 2002AJ....123..458S h = K.L. Cruz 2002, private communication; i = J.E. Gizis 2002, private communication; j = J.D. Kirkpatrick 2002, private communication; k = G.R. Knapp 2002, private communication; l = C.G. Tinney & J.D. Kirkpatrick 2002, private communication; m = J.C. Wilson & K.L. Cruz 2002, private communication.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 25 A25 --- Name Object name 27- 37 A11 --- OName Shorted name (2MHHMM+DDMM) 38 A1 --- n_Name [a] a: Candidate binary. 40- 45 F6.3 mag IAmag A component I-band magnitude 47- 52 F6.3 mag ZAmag ? A component Z-band magnitude 54- 58 F5.3 mag e_IAmag Error in IAmag 60- 64 F5.3 mag e_ZAmag ? Error in ZAmag 66- 71 F6.3 mag IBmag B component I-band magnitude 73- 78 F6.3 mag ZBmag ? B component Z-band magnitude 80- 84 F5.3 mag e_IBmag Error in IBmag 86- 90 F5.3 mag e_ZBmag ? Error in ZBmag 92- 94 I3 deg PA Position angle 96-100 F5.3 arcsec Sep Separation in arcsec 102-103 I2 AU SepAU Separation in AU
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 26-Sep-2003
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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