Simultaneous infrared and optical observations of the transiting debris cloud around WD 1145+017
Article
Article Title | Simultaneous infrared and optical observations of the transiting debris cloud around WD 1145+017 |
---|---|
ERA Journal ID | 1074 |
Article Category | Article |
Authors | Zhou, G. (Author), Kedziora-Chudczer, L. (Author), Bailey, J. (Author), Marshall, J. P. (Author), Bayliss, D. D. R. (Author), Stockdale, C. (Author), Nelson, P. (Author), Tan, T. G. (Author), Rodriguez, J. E. (Author), Tinney, C. G. (Author), Dragomir, D. (Author), Colon, K. (Author), Shporer, A. (Author), Bento, J. (Author), Sefako, R. (Author), Horne, K. (Author) and Cochran, W. (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 463 (4), pp. 4422-4432 |
Number of Pages | 11 |
Year | 2016 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stw2286 |
Web Address (URL) | https://academic.oup.com/mnras/article/463/4/4422/2646518 |
Abstract | We present multiwavelength photometric monitoring of WD 1145+017, a white dwarf exhibiting periodic dimming events interpreted to be the transits of orbiting, disintegrating planetesimals. Our observations include the first set of near-infrared light curves for the object, obtained on multiple nights over the span of 1 month, and recorded multiple transit events with depths varying between ∼20 and 50 per cent. Simultaneous near-infrared and optical observations of the deepest and longest duration transit event were obtained on two epochs with the Anglo-Australian Telescope and three optical facilities, over the wavelength range of 0.5-1.2 μm. These observations revealed no measurable difference in transit depths for multiple photometric pass bands, allowing us to place a 2σ lower limit of 0.8 μm on the grain size in the putative transiting debris cloud. This conclusion is consistent with the spectral energy distribution of the system, which can be fit with an optically thin debris disc with minimum particle sizes of 10^{+5}_{-3} μm. |
Keywords | planets and satellites: individual: WD 1145+017; white dwarfs; Astrophysics - Earth and Planetary Astrophysics |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Byline Affiliations | Center for Astrophysics Harvard and Smithsonian, United States |
University of New South Wales | |
University of Geneva, Switzerland | |
Hazelwood Observatory, Australia | |
Ellinbank Observatory, Australia | |
Perth Exoplanet Survey Telescope Observatory, Australia | |
Vanderbilt University, United States | |
University of Chicago, United States | |
NASA Ames Research Center, United States | |
California Institute of Technology (Caltech), United States | |
Australian National University | |
South African Astronomical Observatory, South Africa | |
University of St Andrews, United Kingdom | |
University of Texas at Austin, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6x79/simultaneous-infrared-and-optical-observations-of-the-transiting-debris-cloud-around-wd-1145-017
Download files
77
total views49
total downloads1
views this month1
downloads this month