dc.creator | Xu, S. | |
dc.creator | Jura, M. | |
dc.creator | Pantoja, B. | |
dc.creator | Klein, B. | |
dc.creator | Zuckerman, B. | |
dc.creator | Su, K. Y. L. | |
dc.creator | Meng, H. Y. A. | |
dc.date.accessioned | 2015-09-08T18:57:28Z | |
dc.date.available | 2015-09-08T18:57:28Z | |
dc.date.created | 2015-09-08T18:57:28Z | |
dc.date.issued | 2015 | |
dc.identifier | Astrophysical Journal Letters. Vol. 806 No. 1 Jun 2015 | |
dc.identifier | DOI: 10.1088/2041-8205/806/1/L5 | |
dc.identifier | https://repositorio.uchile.cl/handle/2250/133497 | |
dc.description.abstract | Using observations of Spitzer/IRAC, we report the serendipitous discovery of excess infrared emission from a single white dwarf PG 0010+280. At a temperature of 27,220 K and a cooling age of 16 Myr, it is the hottest and youngest white dwarf to display an excess at 3-8 mu m. The infrared excess can be fit by either an opaque dust disk within the tidal radius of the white dwarf or a 1300 K blackbody, possibly from an irradiated substellar object or a re-heated giant planet. PG 0010+280 has two unique properties that are different from white dwarfs with a dust disk: (i) relatively low emission at 8 mu m and (ii) non-detection of heavy elements in its atmosphere from high-resolution spectroscopic observations with Keck/HIRES. The origin of the infrared excess remains unclear. | |
dc.language | en | |
dc.publisher | IOP Publishing | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Chile | |
dc.subject | Circumstellar matter | |
dc.subject | Minor planets | |
dc.subject | Asteroids: general | |
dc.subject | White dwarfs | |
dc.title | A Young White Dwarf with an Infrared Excess | |
dc.type | Artículo de revista | |