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J/A+A/390/491       DENIS new nearby stars                   (Reyle+, 2002)

New nearby stars selected in a high proper motion survey by DENIS photometry. Reyle C., Robin A.C., Scholz R.-D., Irwin M. <Astron. Astrophys. 390, 491 (2002)> =2002A&A...390..491R
ADC_Keywords: Stars, nearby ; Proper motions ; Photometry, infrared Keywords: Galaxy: solar neighbourhood - stars: late-type - stars: white dwarfs Abstract: We present new nearby stars extracted from a proper motion catalogue and having a DENIS counterpart. Their distances and spectral type are estimated using the DENIS colours. 107 stars are within 50pc. 31 stars among them have previously measured distances. In addition, 40 stars may enter within the 50pc limit depending on which population they belong to. 6 stars among them have already measured distances. 5 objects, LHS5045, L225-57, LP831-45, LHS1767, and WT792, are probably closer than 15pc, with L225-57 at 9.5pc. Most of these stars are M-type while 4 stars are white dwarfs. 88 M-dwarfs are disc stars, 14 belong to the thick disc and 1 to the spheroid. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 143 147 Nearby stars candidates
See also: V/70 : Nearby Stars, Preliminary 3rd Version (Gliese+ 1991) B/denis : The DENIS database (Epchtein+, 1999) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 12 A12 --- APMPM APMPM name (JHHMM+DDMM) 14- 25 A12 --- Name Other name 27- 28 I2 h RAh Right ascension (J2000) at Epoch 30- 31 I2 min RAm Right ascension (J2000) at Epoch 33- 37 F5.2 s RAs Right ascension (J2000) at Epoch 39 A1 --- DE- Declination sign (J2000) at Epoch 40- 41 I2 deg DEd Declination (J2000) at Epoch 43- 44 I2 arcmin DEm Declination (J2000) at Epoch 46- 49 F4.1 arcsec DEs Declination (J2000) at Epoch 51- 57 F7.2 yr Epoch UKST epoch of observation 59- 63 F5.2 mag Rmag UKST R (photographic) magnitude 65- 69 F5.2 mag B-R UKST BJ-R (photographic) colour index 71- 75 F5.2 mag Imag DENIS I magnitude 77- 81 F5.2 mag I-J DENIS I-J colour index 83- 86 F4.2 mag J-Ks ? DENIS J-Ks colour index 88- 92 F5.1 pc d Estimated distance (1) 93 A1 --- --- [/] 94- 97 F4.1 pc d2 ? Second distance estimation (1) 99-103 F5.2 arcsec/yr pmRA Proper motion in right ascension (µRAcos(DE)) 105-109 F5.2 arcsec/yr pmDE Proper motion in declination (µDE) 111-115 F5.1 km/s Vt Tangential velocity (computed with distance d) 116 A1 --- --- [/] 117-121 F5.1 km/s Vt2 ? Tangential velocity (computed with distance d2) 123-126 A4 --- Type Spectral type (or wd for white dwarf) (2) 129-143 A15 --- Pop Population (3)
Note (1): The distance d is estimated from the I-J colour index. When two distances are indicated, they are obtained with two metallicity hypothesis. Note (2): The spectral types for M-stars are derived from Leggett (1992ApJS...82..351L). Note (3): Population: I = disc, int = thick disc, II = spheroid When two distances are indicated, they are obtained with two metallicity hypothesis and their probable population with probability is indicated, i.e., I/int 85/15.
History: From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 05-Sep-2002
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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