Constraining Effective Temperature, Mass and Radius of Hot White Dwarfs

2017/01/09 by Elvis do A. Soares, Soares, Elvis do A.
Physics and Astronomy · #Astro and Planetary Science #Astronomy and Astrophysical Research #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies #astro-ph.SR

paper · pdf · doi:10.48550/arxiv.1701.02295

8 pages, 9 figures, 3 tables

arxiv created 2017/01/09 · openalex publication_date 2017/01/09 · arxiv updated 2017/01/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

By introducing a simplified transport model of outer layers of white dwarfs we derive an analytical semi-empirical relation which constrains effective temperature-mass-radius for white dwarfs. This relation is used to classify recent data of white dwarfs according to their time evolution in non-accretion process of cooling. This formula permit us to study the population map of white dwarfs in the central temperature and mass plane, and discuss the relation with the ignition temperature for C-O material. Our effective temperature-mass-radius relation provide a quick method to estimate the mass of newly observed white dwarfs from their spectral measurements of effective temperature and superficial gravity.

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