Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...378..116m&link_type=abstract
Astronomy and Astrophysics, v.378, p.116-131 (2001)
Astronomy and Astrophysics
Astrophysics
99
Stars: Fundamental Parameters, Stars: Pre-Main Sequence, Stars: Rotation
Scientific paper
In this paper we present the first comprehensive results extracted from the spectroscopic campaigns carried out by the EXPORT (EXoPlanetary Observational Research Team) consortium. During 1998-1999, EXPORT carried out an intensive observational effort in the framework of the origin and evolution of protoplanetary systems in order to obtain clues on the evolutionary path from the early stages of the pre-main sequence to stars with planets already formed. The spectral types of 70 stars, and the projected rotational velocities, v sin i, of 45 stars, mainly Vega-type and pre-main sequence, have been determined from intermediate- and high-resolution spectroscopy, respectively. The first part of the work is of fundamental importance in order to accurately place the stars in the HR diagram and determine the evolutionary sequences; the second part provides information on the kinematics and dynamics of the stars and the evolution of their angular momentum. The advantage of using the same observational configuration and methodology for all the stars is the homogeneity of the set of parameters obtained. Results from previous work are revised, leading in some cases to completely new determinations of spectral types and projected rotational velocities; for some stars no previous studies were available. Tables 1 and 2 are only, and Table 6 also, available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr(130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/378/116 Based on observations made with the Isaac Newton and the William Herschel telescopes operated on the island of La Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias.
Collier Cameron Andrew
Davies John K.
de Winter Dolf
Deeg Hans-Joerg
Eiroa Carlos
No associations
LandOfFree
EXPORT: Spectral classification and projected rotational velocities of Vega-type and pre-main sequence stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with EXPORT: Spectral classification and projected rotational velocities of Vega-type and pre-main sequence stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EXPORT: Spectral classification and projected rotational velocities of Vega-type and pre-main sequence stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1099856