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An ancient nova shell around the dwarf nova Z Camelopardalis

Author

Listed:
  • Michael M. Shara

    (American Museum of Natural History, 79th Street and Central Park West, New York, New York 10024-5192, USA)

  • Christopher D. Martin

    (Math and Astronomy, California Institute of Technology, 1200 East California Boulevard, Mail Code 405-47, Pasadena, California 91125, USA)

  • Mark Seibert

    (Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, California 91101, USA)

  • R. Michael Rich

    (430 Portola Plaza, UCLA, Los Angeles, California 90095-1547, USA)

  • Samir Salim

    (430 Portola Plaza, UCLA, Los Angeles, California 90095-1547, USA)

  • David Reitzel

    (430 Portola Plaza, UCLA, Los Angeles, California 90095-1547, USA)

  • David Schiminovich

    (Columbia University, New York, New York 10027, USA)

  • Constantine P. Deliyannis

    (Indiana University, Bloomington, Indiana 47405-7105, USA)

  • Angela R. Sarrazine

    (Indiana University, Bloomington, Indiana 47405-7105, USA)

  • Shri R. Kulkarni

    (Math and Astronomy, California Institute of Technology, 1200 East California Boulevard, Mail Code 405-47, Pasadena, California 91125, USA)

  • Eran O. Ofek

    (Math and Astronomy, California Institute of Technology, 1200 East California Boulevard, Mail Code 405-47, Pasadena, California 91125, USA)

  • Noah Brosch

    (Wise Observatory, Tel-Aviv University, Ramat-Aviv 69978, Israel)

  • Sebastien Lépine

    (American Museum of Natural History, 79th Street and Central Park West, New York, New York 10024-5192, USA)

  • David Zurek

    (American Museum of Natural History, 79th Street and Central Park West, New York, New York 10024-5192, USA)

  • Orsola De Marco

    (American Museum of Natural History, 79th Street and Central Park West, New York, New York 10024-5192, USA)

  • George Jacoby

    (WIYN Observatory, PO Box 26732, Tucson, Arizona 85726, USA)

Abstract

The bright and distant past A dwarf nova is a type of cataclysmic variable containing a collapsed white dwarf star that accretes matter from its close companion in a binary system, a red dwarf. An instability periodically dumps material onto the white dwarf, increasing the luminosity by up to a hundredfold. Classical novae are thousands of times brighter than dwarf novae, and are accompanied by the formation of shells around the system. Theory predicts that dwarf novae will eventually gain sufficient mass to undergo classical nova eruptions. This suspected link between dwarf and classical novae now has an observational basis with the discovery of an ancient nova shell around the dwarf nova Z Camelopardalis. The nature of the shell suggests that a few thousand years ago, Z Cam underwent a classical nova eruption and for some days was one of the brightest stars in the sky.

Suggested Citation

  • Michael M. Shara & Christopher D. Martin & Mark Seibert & R. Michael Rich & Samir Salim & David Reitzel & David Schiminovich & Constantine P. Deliyannis & Angela R. Sarrazine & Shri R. Kulkarni & Eran, 2007. "An ancient nova shell around the dwarf nova Z Camelopardalis," Nature, Nature, vol. 446(7132), pages 159-162, March.
    • Handle: RePEc:nat:nature:v:446:y:2007:i:7132:d:10.1038_nature05576
    DOI: 10.1038/nature05576
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