Orbital solutions of binary white dwarf merger systems
Institution: | University of Pittsburgh |
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Department: | |
Year: | 2017 |
Posted: | 02/01/2018 |
Record ID: | 2153730 |
Full text PDF: | http://d-scholarship.pitt.edu/31414/1/RoffeETDPaper.pdf;http://d-scholarship.pitt.edu/31414/ |
We present follow-up observations to white dwarf binary candidates that were identified by spectral variability in SDSS by Badenes & Maoz (2012). We obtained multiple spectra of 24 systems at the Mayall 4m telescope at Kitt Peak, which we analyzed using a Markov Chain Monte Carlo method to measure radial velocities with realistic error bars. Among these systems 6 present strong evidence for binarity, and for these 6 systems we derive orbital solutions.