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
Jazyk: angličtina
Rok vydání: 2015
Předmět:
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