PTF1 J191905.19+481506.2—A partially eclipsing AM CVn system discovered in the Palomar transient factory

Journal Article · Sun Apr 20 00:00:00 EDT 2014 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/785/2/114· OSTI ID:22357101

Levitan, David; Groot, Paul J.; Prince, Thomas A.; Kulkarni, Shrinivas R.; Hallinan, Gregg; Harding, Leon K.; Sesar, Branimir ^[1]; Kupfer, Thomas ^[2]; Margon, Bruce ^[3]; Kyne, Gillian ^[4]; Laher, Russ; Surace, Jason ^[5]; Ofek, Eran O. ^[6]; Rutten, René G. M. ^[7]

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1. Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125 (United States)
2. Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, NL-6500 GL Nijmegen (Netherlands)
3. Department of Astronomy and Astrophysics, University of California, 1156 High Street, Santa Cruz, CA 95064 (United States)
4. Centre for Astronomy, School of Physics, National University of Ireland, Galway (Ireland)
5. Spitzer Science Center, MS 314-6, California Institute of Technology, Pasadena, CA 91125 (United States)
6. Benoziyo Center for Astrophysics, Faculty of Physics, Weizmann Institute of Science, Rehovot 76100 (Israel)
7. GRANTECAN S.A. Cuesta de San José, s/n, E-38712 Breña Baja, La Palma (Spain)

We report on PTF1 J191905.19+481506.2, a newly discovered, partially eclipsing, outbursting AM CVn system found in the Palomar Transient Factory synoptic survey. This is only the second known eclipsing AM CVn system. We use high-speed photometric observations and phase-resolved spectroscopy to establish an orbital period of 22.4559(3) minutes. We also present a long-term light curve and report on the normal and super-outbursts regularly seen in this system, including a super-outburst recurrence time of 36.8(4) days. We use the presence of the eclipse to place upper and lower limits on the inclination of the system and discuss the number of known eclipsing AM CVn systems versus what would be expected.

• OSTI ID: 22357101
• Journal Information: Astrophysical Journal, Vol. 785, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

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