53 citations · 53 across the 3 of their papers we have counts for
20 papers · 1 filter
The pulsation modes of the pre-white dwarf PG 1159-035
J. E. S. Costa, S. O. Kepler, D. E. Winget +74
PG 1159-035, a pre-white dwarf with T_eff=140,000 K, is the prototype of both two classes: the PG1159 spectroscopic class and the DOV pulsating class. Previous studies of PG 1159-0…
In Pursuit of LSST Science Requirements: A Comparison of Photometry Algorithms
Andrew C. Becker, Nicole M. Silvestri, Russell E. Owen +2
We have developed an end-to-end photometric data processing pipeline to compare current photometric algorithms commonly used on ground-based imaging data. This testbed is exceeding…
Discovery of two new accreting pulsating white dwarf stars
Anjum S. Mukadam, B. T. Gänsicke, P. Szkody +4
We report the discovery of two new accreting pulsating white dwarf stars amongst the cataclysmic variables of the Sloan Digital Sky Survey: SDSSJ074531.91+453829.5 and SDSSJ091945.…
New Close Binary Systems from the SDSS-I (Data Release Five) and the Search for Magnetic White Dwarfs in Cataclysmic Variable Progenitor Systems
Nicole M. Silvestri, Mara P. Lemagie, Suzanne L. Hawley +13
We present the latest catalog of more than 1200 spectroscopically-selected close binary systems observed with the Sloan Digital Sky Survey through Data Release Five. We use the cat…
Using the Galactic Dynamics of M7 Dwarfs to Infer the Evolution of Their Magnetic Activity
Andrew A. West, John J. Bochanski, Suzanne L. Hawley +5
We present a spectroscopic study and dynamical analysis of ~2600 M7 dwarfs. We confirm our previous finding that the fraction of magnetically active stars decreases with vertical d…
XMM-Newton and optical follow-up observations of SDSS J093249.57+472523.0 and SDSS J102347.67+003841.2
Lee Homer, Paula Szkody, Bing Chen +5
We report follow-up XMM-Newton and ground-based optical observations of the unusual X-ray binary SDSS J102347.67+003841.2 (=FIRST J102347.6+003841), and a new candidate intermediat…