Constraints on the circumstellar dust around KIC 8462852
Autor: | Lars E. Kristensen, Jessica Dempsey, Michael M. Dunham, I. M. Coulson, Mark Thompson, Francisca Kemper, James E. Geach, Steve Ertel, Paul T. P. Ho, Oscar Morata, Glen Petitpas, Peter Scicluna |
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Jazyk: | angličtina |
Rok vydání: | 2015 |
Předmět: |
Physics
010504 meteorology & atmospheric sciences FOS: Physical sciences Astronomy and Astrophysics Astrophysics Creative commons 01 natural sciences Astrophysics - Solar and Stellar Astrophysics 13. Climate action Space and Planetary Science 0103 physical sciences Circumstellar dust 010303 astronomy & astrophysics License Solar and Stellar Astrophysics (astro-ph.SR) 0105 earth and related environmental sciences Law and economics |
Popis: | We present millimetre (SMA) and sub-millimetre (SCUBA-2) continuum observations of the peculiar star KIC 8462852 which displayed several deep and aperiodic dips in brightness during the Kepler mission. Our observations are approximately confusion-limited at 850 $\mu$m and are the deepest millimetre and sub-millimetre photometry of the star that has yet been carried out. No significant emission is detected towards KIC 8462852. We determine upper limits for dust between a few 10$^{-6}$ M$_{\oplus}$ and 10$^{-3}$ M$_{\oplus}$ for regions identified as the most likely to host occluding dust clumps and a total overall dust budget of $ Comment: 6 pages, 4 figures. Some figure resolutions reduced for file size limits. Submitted to MNRAS 11th December 2015 |
Databáze: | OpenAIRE |
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