Radii and Effective Temperatures of Stars as Measured at the Palomar Testbed Interferometer

Details Radii and Effective Temperatures of Stars as Measured at the Palomar Testbed Interferometer Radii and Effective Temperatures of Stars as Measured at the Palomar Testbed Interferometer

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19913518v&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #135.18; Bulletin of the American Astronomical Society, Vol. 33, p.1508

Astronomy and Astrophysics

Astronomy

Scientific paper

Using the Palomar Testbed Interferometer (PTI), over the past four years we have measured angular diameters in the H and K bands for over 200 stars, ranging in spectral type from B7 to M8, and spanning all luminosity classes. These diameters are part of an ongoing observational program at PTI to empirically establish effective temperatures and linear radii for these stars, in combination with existing photometry and Hipparcos distances for these objects. The dependence of these two parameters upon spectral type, luminosity class and V-K color is explored for consistency with and departures from expected trends. In contrast to our earlier work (van Belle et al. 1999), four new areas are emphasized: First, 0.1-micron narrowband measurements across the K band are examined in detail. Second, a large subset of the newly observed stars has also been observed interferometrically in the visible, allowing for a comparison of the relative sizes. Third, an emphasis on earlier type objects has resulted in a emphasis on B, A, F and G spectral types, complimenting our earlier investigation. Lastly, the temporal consistency of the angular sizes of these non-variable stars is confirmed. We gratefully acknowledge support of the instrumentation for PTI through NASA.

Affiliated with

Also associated with

No associations

Rating

Radii and Effective Temperatures of Stars as Measured at the Palomar Testbed Interferometer 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 Radii and Effective Temperatures of Stars as Measured at the Palomar Testbed Interferometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radii and Effective Temperatures of Stars as Measured at the Palomar Testbed Interferometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1236886