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

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.
Authors:
; ; ; ; ; ;  [1] ;  [2] ;  [3] ;  [4] ; ;  [5] ;  [6] ;  [7]
  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)
Publication Date:
OSTI Identifier:
22357101
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 785; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCRETION DISKS; ECLIPSE; INCLINATION; NOVAE; SPECTROSCOPY; TRANSIENTS; VELOCITY; VISIBLE RADIATION; WHITE DWARF STARS