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J/A+A/512/A45       Radial velocities of BD+20 1790       (Hernan-Obispo+, 2010)

Evidence of a massive planet candidate orbiting the young active K5V star BD+20 1790. Hernan-Obispo M., Galvez-Ortiz M. C., Anglada-Escude G., Kane S. R., Barnes J. R., de Castro E., Cornide M. <Astron. Astrophys. 512, A45 (2010)> =2010A&A...512A..45H
ADC_Keywords: Stars, late-type ; Planets ; Radial velocities Keywords: stars: activity - stars: late-type - stars: individual (BD+20 1790) - planetary systems Abstract: BD+20 1790 is a young active, metal-rich, late-type K5Ve star. We have undertaken a study of stellar activity and kinematics for this star over the past few years. Previous results show a high level of stellar activity, with the presence of prominence-like structures, spots on the surface, and strong flare events, despite the moderate rotational velocity of the star. In addition, radial velocity variations with a semi-amplitude of up to 1km/s were detected. We investigate the nature of these radial velocity variations, in order to determine whether they are due to stellar activity or the reflex motion of the star induced by a companion. Description: This paper reports the discovery of a planetary companion for the young and active K5V star BD+20 1790. The fit of the RV data yields a solution for a close-in massive planet with an orbital period of 7.78days. The radial velocity data listed here are not part of a planetary search programme. Objects: ------------------------------------------------------- RA (2000) DE Designation(s) ------------------------------------------------------- 07 23 43.6 +20 24 59 BD+20 1790 = TYC 1355-214-1 ------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 24 13 Radial velocity of BD+20 1790
See also: J/MNRAS/328/45 : Late-type stars members of young groups (Montes+, 2001) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 12 F12.4 d JD Julian Date 15- 18 F4.2 km/s HRV Heliocentric radial velocity 21- 24 F4.2 km/s e_HRV Radial velocity error
Acknowledgements: Magdalena Hernan-Obispo, mho(at)astrax.fis.ucm.es
(End) Patricia Vannier [CDS] 19-Jan-2010
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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