M Jura 2008 The Astronomical Journal 135 1785 doi:10.1088/0004-6256/135/5/1785
M Jura
Show affiliationsExtrapolating from the solar system's asteroid belt, we propose that externally contaminated white dwarfs without an infrared excess may be experiencing continuous accretion of gas-phase material that is ultimately derived from the tidal destruction of multiple small asteroids. If this scenario is correct, then observations of metal-polluted white dwarfs may lead to determination of the bulk elemental compositions of ensembles of extrasolar minor planets.
Issue 5 (2008 May)
Received 2007 November 19, accepted for publication 2008 February 20
Published 2008 April 7
M Jura 2008 The Astronomical Journal 135 1785
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