A dataset provided by the European Space Agency

Name OT1_mjura_1
Title A Search for Cold Dust Orbiting GD 362, a Highly Polluted White Dwarf With Detected Warm Dust


DOI 10.5270/esa-cin87h9
Author jura, m.
Description We propose to observe GD 362 to measure the amount of cold dust orbiting this white dwarf which is already known to possess warm dust. There are two models to account for the large amount of atmospheric hydrogen in this externally-polluted star whose atmosphere is largely helium. (1) The star is accreting from a single Mars-mass parent body. In this case there is no reason to expect cold dust. (2) The star is accreting from an ensemble of 100.s of Ceres-mass asteroids; a large amount of cold dust likely is present. If so, the source could be detected with PACS.
Publication Two Beyond-primitive Extrasolar Planetesimals . Xu S. et al. . The Astrophysical Journal, Volume 766, Issue 2, article id. 132, 14 pp. (2013). . 766 . 10.1088\/0004-637X\/766\/2\/132 . 2013ApJ...766..132X ,
Instrument PACS_PacsPhoto_largeScan
Temporal Coverage 2011-08-01T19:53:52Z/2011-08-01T20:57:53Z
Version SPG v14.2.0
Mission Description Herschel was launched on 14 May 2009! It is the fourth 'cornerstone' mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2012-02-01T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-02-01T00:00:00Z, OT1_mjura_1, SPG v14.2.0. https://doi.org/10.5270/esa-cin87h9