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PTF1 J191905.19+481506.2--A Partially Eclipsing AM CVn System Discovered in the Palomar Transient Factory

Levitan, David and Kupfer, Thomas and Groot, Paul J. and Margon, Bruce and Prince, Thomas A. and Kulkarni, Shrinivas R. and Hallinan, Gregg and Harding, Leon K. and Kyne, Gillian and Laher, Russ and Ofek, Eran O. and Rutten, René G. M. and Sesar, Branimir and Surace, Jason (2014) PTF1 J191905.19+481506.2--A Partially Eclipsing AM CVn System Discovered in the Palomar Transient Factory. Astrophysical Journal, 785 (2). Art. No. 114. ISSN 0004-637X. doi:10.1088/0004-637X/785/2/114.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper DOIArticle
Kupfer, Thomas0000-0002-6540-1484
Groot, Paul J.0000-0002-4488-726X
Margon, Bruce0000-0002-7837-3363
Prince, Thomas A.0000-0002-8850-3627
Kulkarni, Shrinivas R.0000-0001-5390-8563
Hallinan, Gregg0000-0002-7083-4049
Laher, Russ0000-0003-2451-5482
Ofek, Eran O.0000-0002-6786-8774
Sesar, Branimir0000-0002-0834-3978
Surace, Jason0000-0001-7291-0087
Additional Information:© 2014 The American Astronomical Society. Received 2013 September 28; accepted 2014 February 27; published 2014 April 2. T.K. acknowledges support by the Netherlands Research School of Astronomy (NOVA).We thank Dong Xu for reducing the initial classification spectra. Observations obtained with the Samuel Oschin Telescope at the Palomar Observatory as part of the Palomar Transient Factory project, a scientific collaboration between the California Institute of Technology, Columbia University, Las Cumbres Observatory, the Lawrence Berkeley National Laboratory, the National Energy Research Scientific Computing Center, the University of Oxford, and the Weizmann Institute of Science. Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The authors wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Mauna Kea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain. Based in part on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministério da Ciência, Tecnologia e Inovação (Brazil) and Ministerio de Ciencia, Tecnología e Innovación Productiva (Argentina). The Gemini data were obtained under Program ID GN-2012B-Q-110. Based in part on observations made with the Gran Telescopio Canarias (GTC) installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias, on the island of La Palma. Facilities: PO:1.2m, PO:1.5m, Gemini:Gillett (GMOS-N), GTC (OSIRIS), Hale (CHIMERA, DBSP), Keck:I (LRIS), Shane (Kast Double spectrograph)
Group:Palomar Transient Factory, Infrared Processing and Analysis Center (IPAC), Space Radiation Laboratory, Space Astrophysics Laboratory
Funding AgencyGrant Number
Nederlandse Onderzoekschool voor de Astronomie (NOVA)UNSPECIFIED
W. M. Keck FoundationUNSPECIFIED
Subject Keywords:accretion, accretion disks; binaries: close; novae, cataclysmic variables; stars: individual (PTF1J191905.19+481506.2); white dwarfs
Issue or Number:2
Record Number:CaltechAUTHORS:20140616-132349713
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Official Citation:PTF1 J191905.19+481506.2--A Partially Eclipsing AM CVn System Discovered in the Palomar Transient Factory David Levitan et al. 2014 ApJ 785 114
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46284
Deposited By: Tony Diaz
Deposited On:16 Jun 2014 21:42
Last Modified:10 Nov 2021 17:23

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