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J/A+A/504/829  Spectroscopic survey of youngest field stars (Guillout+, 2009)

A spectroscopic survey of the youngest field stars in the solar neighbourhood. I. The optically bright sample. Guillout P., Klutsch A., Frasca A., Freire Ferrero R., Marilli E., Mignemi G., Biazzo K., Bouvier J., Monier R., Motch C., Sterzik M. <Astron. Astrophys., 504, 829-843 (2009)> =2009A&A...504..829G
ADC_Keywords: Stars, nearby ; Stars, pre-main sequence ; X-ray sources ; Radial velocities Keywords: stars: formation - stars: rotation - stars: kinematics - stars: pre-main sequence - stars: binaries: close - X-rays: stars Abstract: We present the first results of an ambitious ground-based observation programme conducted on 1-4m class telescopes. Our sample consists of 1097 active and presumably young stars, all of them being optical (Tycho Catalogue) counterparts of ROSAT All- Sky Survey X-ray sources in the northern hemisphere. In this paper, we concentrate on the optically brightest (VT≤9.5m) candidates (704 objects).We acquired high-resolution optical spectroscopy in the Hα and/or lithium spectral regions for 426 of such stars without relevant data in the literature. We describe the star sample and the observations and we start to discuss the physical properties of the investigated stars. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file cbssb1.dat 159 59 Catalog of bright RasTyc sample stars identified as SB1 systems cbssb2-3.dat 159 119 Catalog of bright RasTyc sample stars identified as SB2 or SB3 systems cbssing.dat 159 313 Catalog of bright RasTyc sample stars identified as simple single or not classified sources crvsb1.dat 122 59 Radial velocity measurements obtained on the two observation nights for SB1 systems crvsb2-3.dat 162 54 Radial velocity measurements obtained on the two observation nights for SB2 and SB3 systems crvsing.dat 122 313 Radial velocity measurements obtained on the two observation nights for single or not classified sources
See also: J/A+A/454/301 : Radial velocities of 6 binaries (Frasca+, 2006) J/A+A/490/737 : Radial velocities of 3 RasTyc new triple system (Klutsch+ 2008) Byte-by-byte Description of file: cbss*.dat
Bytes Format Units Label Explanations
1- 6 A6 --- --- [RasTyc] 7- 15 A9 --- RasTyc RasTyc name (HHMM+DDMM) 17- 37 A21 --- Name Star Name 39- 40 I2 h RAh Right ascension (J2000) 42- 43 I2 min RAm Right ascension (J2000) 45- 48 F4.1 s RAs Right ascension (J2000) 50 A1 --- DE- Declination sign (J2000) 51- 52 I2 deg DEd Declination (J2000) 54- 55 I2 arcmin DEm Declination (J2000) 57- 58 I2 arcsec DEs Declination (J2000) 60- 64 F5.3 mag B-V B-V colour index 66- 72 F7.3 10-2ct/s CR ? ROSAT X-ray count rate 74- 79 F6.3 10-2ct/s e_CR ? rms uncertainty on CR 81- 84 A4 --- SB SB type (1) 86 A1 --- m_RasTyc [ABC] Multiplicity index 88 A1 --- l_vsini Limit flag on vsini 89- 94 F6.2 km/s vsini ? Rotational velocity 96-100 F5.2 km/s e_vsini ? rms uncertainty on vsini 102-105 I4 K Teff ? Effective temperature 107-109 I3 K e_Teff ? rms uncertainty on Teff 111-114 F4.2 [cm/s2] logg ? Surface gravity 116-119 F4.2 [cm/s2] e_logg ? rms uncertainty on logg 121-125 F5.2 [-] [Fe/H] ? Metallicity 127-130 F4.2 [-] e_[Fe/H] ? rms uncertainty on [Fe/H] 132-138 F7.2 0.1pm WHa ? Hα emission line width 140-145 F6.2 0.1pm e_WHa ? rms uncertainty on WHa 147-152 F6.2 0.1pm EW(Li) ? Lithium equivalent width 154-159 F6.2 0.1pm e_EW(Li) ? rms uncertainty on EW(Li)
Note (1): SB type as follows: SB1 = SB1 type SB1? = possible SB1 type SB2 = SB2 type SB2? = possible SB2 type SB3 = SB3 type SB3? = possible SB3 type S: = single star with only one observation S = single star ? = problem during the classification - = star not observed
Byte-by-byte Description of file: crvsb1.dat crvsing.dat
Bytes Format Units Label Explanations
1- 6 A6 --- --- [RasTyc] 7- 15 A9 --- RasTyc RasTyc name (HHMM+DDMM) 17- 37 A21 --- Name Name 39- 40 I2 h RAh Right ascension (J2000) 42- 43 I2 min RAm Right ascension (J2000) 45- 48 F4.1 s RAs Right ascension (J2000) 50 A1 --- DE- Declination sign (J2000) 51- 52 I2 deg DEd Declination (J2000) 54- 55 I2 arcmin DEm Declination (J2000) 57- 58 I2 arcsec DEs Declination (J2000) 60- 72 F13.5 d HJD1 ? Heliocentric Julian date on first observation 74- 79 F6.2 km/s RV1 ? Radial velocity of first observation 81- 84 F4.2 km/s e_RV1 ? rms uncertainty on RV1 86- 98 F13.5 d HJD2 ? Heliocentric Julian date on second observation 100-105 F6.2 km/s RV2 ? Radial velocity of second observation 107-110 F4.2 km/s e_RV2 ? rms uncertainty on RV2 112-117 F6.2 km/s RVm ? Mean radial velocity (for crvsing table only) 119-122 F4.2 km/s e_RVm ? rms uncertainty on RVm
Byte-by-byte Description of file: crvsb2-3.dat
Bytes Format Units Label Explanations
1- 6 A6 --- --- [RasTyc] 7- 15 A9 --- RasTyc RasTyc name (HHMM+DDMM) 17- 37 A21 --- Name Name 39- 40 I2 h RAh Right ascension (J2000) 42- 43 I2 min RAm Right ascension (J2000) 45- 48 F4.1 s RAs Right ascension (J2000) 50 A1 --- DE- Declination sign (J2000) 51- 52 I2 deg DEd Declination (J2000) 54- 55 I2 arcmin DEm Declination (J2000) 57- 58 I2 arcsec DEs Declination (J2000) 60- 72 F13.5 d HJD1 ? Heliocentric Julian date on first observation 74- 80 F7.2 km/s RV1-1 ? Radial velocity of first identified component on first observation 82- 86 F5.2 km/s e_RV1-1 ? rms uncertainty on RV1 88- 94 F7.2 km/s RV2-1 ? Radial velocity of second identified component on first observation 96-100 F5.2 km/s e_RV2-1 ? rms uncertainty on RV1 102-107 F6.2 km/s RV3-1 ? Radial velocity of third identified component on first observation 109-112 F4.2 km/s e_RV3-1 ? rms uncertainty on RV1 114-126 F13.5 d HJD2 ? Heliocentric Julian date on second observation 128-133 F6.2 km/s RV1-2 ? Radial velocity of first identified component on second observation 135-138 F4.2 km/s e_RV1-2 ? rms uncertainty on RV2 140-145 F6.2 km/s RV2-2 ? Radial velocity of second identified component on second observation 147-150 F4.2 km/s e_RV2-2 ? rms uncertainty on RV2 152-157 F6.2 km/s RV3-2 ? Radial velocity of third identified component on second observation 159-162 F4.2 km/s e_RV3-2 ? rms uncertainty on RV2
Acknowledgements: Alexis Klutsch, klutsch.alexis(at)gmail.com History: 11-Jan-2010: units of WHa and EW(Li) corrected into 0.1pm
(End) Patricia Vannier [CDS] 09-Oct-2009
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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