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RR-Lyrae-type pulsations from a 0.26-solar-mass star in a binary system

Author

Listed:
  • G. Pietrzyński

    (Universidad de Concepción, Casilla 160-C, Concepciòn, Chile
    Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland)

  • I. B. Thompson

    (Carnegie Observatories, 813 Santa Barbara Street)

  • W. Gieren

    (Universidad de Concepción, Casilla 160-C, Concepciòn, Chile)

  • D. Graczyk

    (Universidad de Concepción, Casilla 160-C, Concepciòn, Chile)

  • K. Stępień

    (Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland)

  • G. Bono

    (via della Ricerca Scientifica 1, 00133 Rome, Italy
    INAF–Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monte Porzio Catone, Italy)

  • P. G. Prada Moroni

    (Università di Pisa, Largo B. Pontecorvo, 3, I-56127, Pisa, Italy
    INFN, Sezione di Pisa, Largo B. Pontecorvo, 3, I-56127, Pisa, Italy)

  • B. Pilecki

    (Universidad de Concepción, Casilla 160-C, Concepciòn, Chile
    Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland)

  • A. Udalski

    (Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland)

  • I. Soszyński

    (Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland)

  • G. W. Preston

    (Carnegie Observatories, 813 Santa Barbara Street)

  • N. Nardetto

    (Laboratoire Lagrange, UMR7293, UNS/CNRS/OCA, 06300 Nice, France)

  • A. McWilliam

    (Carnegie Observatories, 813 Santa Barbara Street)

  • I. U. Roederer

    (Carnegie Observatories, 813 Santa Barbara Street)

  • M. Górski

    (Universidad de Concepción, Casilla 160-C, Concepciòn, Chile
    Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland)

  • P. Konorski

    (Universidad de Concepción, Casilla 160-C, Concepciòn, Chile
    Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland)

  • J. Storm

    (Leibniz Institute for Astrophysics, An der Sternwarte 16, 14482 Potsdam, Germany)

Abstract

The pulsating star OGLE-BLG-RRLYR-02792 is known to be a member of an eclipsing binary system, and its mass is now determined to be only 0.26 times that of the Sun, meaning that it cannot be a classical RR Lyrae pulsator.

Suggested Citation

  • G. Pietrzyński & I. B. Thompson & W. Gieren & D. Graczyk & K. Stępień & G. Bono & P. G. Prada Moroni & B. Pilecki & A. Udalski & I. Soszyński & G. W. Preston & N. Nardetto & A. McWilliam & I. U. Roede, 2012. "RR-Lyrae-type pulsations from a 0.26-solar-mass star in a binary system," Nature, Nature, vol. 484(7392), pages 75-77, April.
    • Handle: RePEc:nat:nature:v:484:y:2012:i:7392:d:10.1038_nature10966
    DOI: 10.1038/nature10966
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