NOAO > Observing Info > Approved Programs > 2012B-0355
|
NOAO > Observing Info > Approved Programs > 2012B-0355 |
|
PI: Terry D. Oswalt, Florida Institute of Technology, toswalt@fit.edu
Address: Physics Department, 150 West University Boulevard, Melbourne, FL 32940, USA
CoI: Jingkun Zhao, Florida Institute of Technology
CoI: Jay Holberg, University of Arizona
CoI: Martin Barstow, University of Leicester (UK)
Title: Observational Constraints on the White Dwarf Mass-Radius Relation
Abstract:
We propose to measure gravitational redshifts for white dwarf stars
that have distant non-interacting main sequence companions. With
independent radius constraints obtained from parallaxes and surface
gravity determinations obtained from our spectra, we will make improved
estimates of white dwarf masses and radii that can be critically
compared with theoretical mass-radius relations specific to each star.
These observations will greatly extend the range of masses over which
the white dwarf mass-radius relation has been tested, spanning 0.5 to
1.2 solar masses.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
|
NOAO > Observing Info > Approved Programs > 2012B-0355 |
|