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The double-degenerate, super-Chandrasekhar nucleus of the planetary nebula Henize 2-428

Author

Listed:
  • M. Santander-García

    (Observatorio Astronómico Nacional, Apartado de Correos 112, E-28803, Alcalá de Henares, Spain
    Instituto de Ciencia de Materiales de Madrid (CSIC), Sor Juana Inés de la Cruz, 3, E-28049 Madrid, Spain)

  • P. Rodríguez-Gil

    (Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
    Universidad de La Laguna, E-38205 La Laguna, Tenerife, Spain)

  • R. L. M. Corradi

    (Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
    Universidad de La Laguna, E-38205 La Laguna, Tenerife, Spain)

  • D. Jones

    (Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
    Universidad de La Laguna, E-38205 La Laguna, Tenerife, Spain)

  • B. Miszalski

    (South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa
    Southern African Large Telescope Foundation, PO Box 9, Observatory 7935, South Africa)

  • H. M. J. Boffin

    (European Southern Observatory, Alonso de Córdova 3107, 19001 Casilla, Santiago, Chile)

  • M. M. Rubio-Díez

    (Centro de Astrobiología, CSIC-INTA, Carretera de Torrejón a Ajalvir, km 4, E-28850 Torrejón de Ardoz, Spain)

  • M. M. Kotze

    (South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa)

Abstract

The probable evolution of the planetary nebula Henize 2-428 is examined, from a close binary system in which both stars ejected their envelopes to the white dwarf stage with a short orbital period and combined mass above the Chandrasekhar limit, suggesting that the system should merge in about 700 million years and trigger a type Ia supernova.

Suggested Citation

  • M. Santander-García & P. Rodríguez-Gil & R. L. M. Corradi & D. Jones & B. Miszalski & H. M. J. Boffin & M. M. Rubio-Díez & M. M. Kotze, 2015. "The double-degenerate, super-Chandrasekhar nucleus of the planetary nebula Henize 2-428," Nature, Nature, vol. 519(7541), pages 63-65, March.
    • Handle: RePEc:nat:nature:v:519:y:2015:i:7541:d:10.1038_nature14124
    DOI: 10.1038/nature14124
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