79 citations · 192 across the 5 of their papers we have counts for
5 papers
A new detailed examination of white dwarfs in NGC3532 and NGC2287
P. D. Dobbie, R. Napiwotzki, M. R. Burleigh +5
We present the results of a photometric and spectroscopic study of the white dwarf candidate members of the intermediate age open clusters NGC3532 and NGC2287. Of the nine objects…
The Physics of Crystallization from Globular Cluster White Dwarf Stars in NGC 6397
D. E. Winget, S. O. Kepler, Fabiola Campos +4
We explore the physics of crystallization in the deep interiors of white dwarf stars using the color-magnitude diagram and luminosity function constructed from proper motion cleane…
Oph 1622-2405: Not a Planetary-Mass Binary
K. L. Luhman, K. N. Allers, D. T. Jaffe +4
We present an analysis of the mass and age of the young low-mass binary Oph 1622-2405. Using resolved optical spectroscopy of the binary, we measure spectral types of M7.25+/-0.25…
A New Look at the Empirical Initial-Final Mass Relation
Kurtis A. Williams
We examine new methods of producing and analyzing the empirical initial-final mass relation for open cluster white dwarfs (WDs). We re-determine initial and final masses for the co…
The Pre-cataclysmic Binary HS 1136+6646 May Have a Companion
James Liebert, Kurtis A. Williams, J. B. Holberg +1
Because of the similarity of the primary star of HS 1136+6646 to the planetary nebula central star BE Ursae Majoris, we did wide field imaging of the former with an H-alpha filter.…