VINCI / VLTI observations of Main Sequence stars

Details VINCI / VLTI observations of Main Sequence stars VINCI / VLTI observations of Main Sequence stars

2003-09-29

arxiv.org/abs/astro-ph/0309784v1

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures. To appear in the Proceedings of IAU Symposium 219, "Stars as Suns", Editors A. Benz & A. Dupree, Astronomi

Scientific paper

Main Sequence (MS) stars are by far the most numerous class in the Universe. They are often somewhat neglected as they are relatively quiet objects (but exceptions exist), though they bear testimony of the past and future of our Sun. An important characteristic of the MS stars, particularly the solar-type ones, is that they host the large majority of the known extrasolar planets. Moreover, at the bottom of the MS, the red M dwarfs pave the way to understanding the physics of brown dwarfs and giant planets. We have measured very precise angular diameters from recent VINCI/VLTI interferometric observations of a number of MS stars in the K band, with spectral types between A1V and M5.5V. They already cover a wide range of effective temperatures and radii. Combined with precise Hipparcos parallaxes, photometry, spectroscopy as well as the asteroseismic information available for some of these stars, the angular diameters put strong constraints on the detailed models of these stars, and therefore on the physical processes at play.

Affiliated with

Also associated with

No associations

Rating

VINCI / VLTI observations of 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 VINCI / VLTI observations of Main Sequence stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VINCI / VLTI observations of Main Sequence stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-370546