Pruning The ELM Survey: Characterizing Candidate Low-mass White Dwarfs through Photometric Variability
Pruning The ELM Survey: Characterizing Candidate Low-mass White Dwarfs through Photometric Variability
We assess the photometric variability of nine stars with spectroscopic Teff and log(g) values from the ELM Survey that locate them near the empirical extremely low-mass (ELM) white dwarf instability strip. We discover three new pulsating stars: SDSS J135512.34+195645.4, SDSS J173521.69+213440.6 and SDSS J213907.42+222708.9. However, these are among the few …