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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 140 147 Nearby stars candidates
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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
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Bytes Format Units Label Explanations
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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)
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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 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.
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History:
From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 05-Sep-2002