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J/A+A/380/590      30 DENIS late-M dwarfs between 15 and 30pc  (Phan-Bao+, 2001)

New neighbours: IV. 30 DENIS late-M dwarfs between 15 and 30 parsecs. Phan-Bao N., Guibert J., Crifo F., Delfosse X., Forveille T., Borsenberger J., Epchtein N., Fouque P., Simon G. <Astron. Astrophys., 380, 590-598 (2001)> =2001A&A...380..590P
ADC_Keywords: Stars, nearby ; Stars, M-type ; Photometry, infrared ; Proper motions Keywords: astrometry - proper motions - low mass stars Abstract: We present 30 new nearby (d<30pc) red dwarf candidates, with estimated spectral types M6 to M8. 26 were directly selected from the DENIS database (B/denis), and another 4 were first extracted from the LHS catalogue (I/87) and cross-identified with a DENIS counterpart. Their proper motions were measured on the MAMA measuring machine from plates spanning 13 to 48 years, and are larger than 0.1arcsec/yr, ruling out the possibility that they are giants. Their distances were estimated from the DENIS colours and IR colour-magnitude relations and range between 15 and 30pc. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table45.dat 96 30 Proper motion, MAMA and DENIS photometry and estimated distances or the 30 DENIS red dwarf candidates (tables 4 & 5 of the paper)
See also: B/denis : The DENIS database (Epchtein+, 1999) I/87 : LHS Catalogue, 2nd Edition (Luyten 1979) I/98 : NLTT Catalogue (Luyten, 1979) J/A+AS/105/179 : New proper-motion stars Dec←40, 16<RA<24h (Wroblewski+ 1994) J/A+A/401/959 : 35 DENIS late-M dwarfs between 10 and 30pc (Phan-bao+, 2003) Byte-by-byte Description of file: table45.dat
Bytes Format Units Label Explanations
1- 15 A15 --- DENIS DENIS name (based on J2000 position) 16 A1 --- New [*] Not previously known as a high proper motion star 18- 23 F6.3 arcsec/yr pmRA Proper motion in right ascension 25- 30 F6.3 arcsec/yr pmDE Proper motion in declination 32- 36 F5.3 arcsec/yr pm Total proper motion 38- 42 F5.3 arcsec/yr pmL ? Total proper motion (1) 44- 47 F4.1 mag Bmag ? B magnitude from the SRC-J plate 49- 52 F4.1 mag Rmag R magnitude from the plates POSS I, SRC-R and ESO-R 54- 58 F5.2 mag Imag DENIS I magnitude 60- 63 F4.2 mag I-J DENIS I-J colour index 65- 68 F4.2 mag J-K DENIS J-K colour index 70- 74 F5.2 mag IMAG Absolute I band magnitude (2) 76- 80 F5.2 mag KMAG Absolute K band magnitude (3) 82- 85 F4.1 pc DistI Estimated distance from IMAG 87- 90 F4.1 pc DistK Estimated distance from KMAG 92- 96 F5.1 km/s Vt Tangential velocity (computed from DistI and proper motion)
Note (1): Literature total proper motion, from Luyten catalogues (Cat. I/98, I/87) or Wroblewski & Torres 1994 (Cat. J/A+AS/105/179) when available Note (2): Absolute I-band magnitude estimated from the (I-J, absolute magnitude) relation of Delfosse, 1997, Ph.D. thesis, Grenoble University. Note (3): Absolute K-band magnitude estimated from the (I-K, absolute magnitude) relation of Tinney et al., 1995AJ....110.3014T.
Acknowledgements: Phan Bao Ngoc, pbngoc(at)asiaa.sinica.edu.tw References: Delfosse et al., Paper I 1999A&A...344..897D Delfosse et al., Paper II 2001A&A...366L..13D Hambly et al., Paper III 2004A&A...425..997B Phan-Bao et al., Paper V 2003A&A...401..959P, Cat. J/A+A/401/959
(End) Patricia Vannier [CDS] 01-Mar-2005
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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