A Large Ground-based Observing Campaign of the Disintegrating Planet K2-22b
Article
Article Title | A Large Ground-based Observing Campaign of the Disintegrating Planet K2-22b |
---|---|
ERA Journal ID | 1048 |
Article Category | Article |
Authors | Colon, Knicole D. (Author), Zhou, George (Author), Shporer, Avi (Author), Collins, Karen A. (Author), Bieryla, Allyson (Author), Espinoza, Nestor (Author), Murgas, Felipe (Author), Pattarakijwanich, Petchara (Author), Awiphan, Supachai (Author), Armstrong, James D. (Author), Bailey, Jeremy (Author), Barentsen, Geert (Author), Bayliss, Daniel (Author), Chakpor, Anurak (Author), Cochran, William D. (Author), Dhillon, Vikram S. (Author), Horne, Keith (Author), Ireland, Michael (Author), Kedziora-Chudczer, Lucyna (Author), Kielkopf, John F. (Author), Komonjinda, Siramas (Author), Latham, David W. (Author), Marsh, Tom. R. (Author), Mkrtichian, David E. (Author), Palle, Enric (Author), Ruffolo, David (Author), Sefako, Ramotholo (Author), Tinney, Chris G. (Author), Wannawichian, Suwicha (Author) and Yuma, Suraphong (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 156 (5), pp. 1-11 |
Article Number | 227 |
Number of Pages | 11 |
Year | 2018 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/aae31b |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/aae31b |
Abstract | We present 45 ground-based photometric observations of the K2-22 system collected between 2016 December and 2017 May, which we use to investigate the evolution of the transit of the disintegrating planet K2-22b. Last observed in early 2015, in these new observations we recover the transit at multiple epochs and measure a typical depth of <1.5%. We find that the distribution of our measured transit depths is comparable to the range of depths measured in observations from 2014 and 2015. These new observations also support ongoing variability in the K2-22b transit shape and time, although the overall shallowness of the transit makes a detailed analysis of these transit parameters difficult. We find no strong evidence of wavelength-dependent transit depths for epochs where we have simultaneous coverage at multiple wavelengths, although our stacked Las Cumbres Observatory data collected over days-to-months timescales are suggestive of a deeper transit at blue wavelengths. We encourage continued high-precision photometric and spectroscopic monitoring of this system in order to further constrain the evolution timescale and to aid comparative studies with the other few known disintegrating planets. |
Keywords | planets and satellites: detection; planets and satellites: individual (K2-22 b); techniques: photometric; Astrophysics - Earth and Planetary Astrophysics |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | NASA Goddard Space Flight Center, United States |
Center for Astrophysics Harvard and Smithsonian, United States | |
Massachusetts Institute of Technology, United States | |
Max Planck Society, Germany | |
Institute of Astrophysics of the Canary Islands, Spain | |
Mahidol University, Thailand | |
National Astronomical Research Institute of Thailand, Thailand | |
University of Hawaii, United States | |
University of New South Wales | |
NASA Ames Research Center, United States | |
University of Warwick, United Kingdom | |
University of Texas at Austin, United States | |
University of St Andrews, United Kingdom | |
Australian National University | |
School of Mathematics, Physics and Computing | |
Chiang Mai University, Thailand | |
South African Astronomical Observatory, South Africa |
https://research.usq.edu.au/item/q6x37/a-large-ground-based-observing-campaign-of-the-disintegrating-planet-k2-22b
Download files
90
total views38
total downloads3
views this month1
downloads this month