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Nonradial and radial period changes of the Delta Scuti star 4 CVn II. Systematic behavior over 40 years
M. Breger, M. H. Montgomery, P. Lenz +1
Pulsators on and near the main sequence show period and amplitude changes that are too large to be the product of stellar evolution. The multiperiodic Delta Scuti stars are well su…
Pruning The ELM Survey: Characterizing Candidate Low-Mass White Dwarfs Through Photometric Variability
Keaton J. Bell, A. Gianninas, J. J. Hermes +7
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…
Molecular nucleation theory of dust formation in core-collapse supernovae applied to SN 1987A
Alan Sluder, Milos Milosavljevic, Michael H. Montgomery
We model dust formation in the core collapse supernova explosion SN 1987A by treating the gas-phase formation of dust grain nuclei as a chemical process. To compute the synthesis o…
Helium at white dwarf photospheric conditions: preliminary laboratory results
Marc Schaeuble, Ross E. Falcon, Thomas A. Gomez +3
We present preliminary results of an experimental study exploring helium at photospheric conditions of white dwarf stars. These data were collected at Sandia National Laboratories'…