An upper limit for the water outgassing rate of the main-belt comet 176P/LINEAR observed with Herschel/HIFI

  title={An upper limit for the water outgassing rate of the main-belt comet 176P/LINEAR observed with Herschel/HIFI},
  author={Miguel de Val-Borro and Ladislav Rezac and Paul Hartogh and Nicolas Biver and Dominique Bockel'ee-Morvan and Jacques Crovisier and M. Kuppers and Dariusz C. Lis and Sławomira Szutowicz and Geoffrey A. Blake and Martin Emprechtinger and Christopher J. Jarchow and Emmanuel Jehin and Mark Richard Kidger and Luisa Maria Lara and E. Lellouch and Roxana Moreno and Miriam Rengel},
  journal={Astronomy and Astrophysics},
176P/LINEAR is a member of the new cometary class known as main-belt comets (MBCs). It displayed cometary activity shortly during its 2005 perihelion passage, which may be driven by the sublimation of subsurface ices. We have therefore searched for emission of the H_(2)O 1_(10)–1_(01) ground state rotational line at 557 GHz toward 176P/LINEAR with the Heterodyne Instrument for the Far Infrared (HIFI) onboard the Herschel Space Observatory on UT 8.78 August 2011, about 40 days after its most… Expand

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