The Astrophysical Journal Supplement Series (Jan 2023)
FOSSIL. III. Lightcurves of 371 Trans-Neptunian Objects
- Edward Ashton,
- Chan-Kao Chang,
- Ying-Tung Chen,
- Matthew J. Lehner,
- Shiang-Yu Wang,
- Mike Alexandersen,
- Young-Jun Choi,
- Wesley C. Fraser,
- A. Paula Granados Contreras,
- Takashi Ito,
- Youngmin JeongAhn,
- Jianghui Ji,
- JJ Kavelaars,
- Myung-Jin Kim,
- Samantha M. Lawler,
- Jian Li,
- Zhong-Yi Lin,
- Patryk Sofia Lykawka,
- Hong-Kyu Moon,
- Surhud More,
- Marco A. Muñoz-Gutiérrez,
- Keiji Ohtsuki,
- Rosemary E. Pike,
- Tsuyoshi Terai,
- Seitaro Urakawa,
- Fumi Yoshida,
- Hui Zhang,
- Haibin Zhao,
- Ji-Lin Zhou,
- (The FOSSIL Collaboration)
Affiliations
- Edward Ashton
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ; [email protected]
- Chan-Kao Chang
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ; [email protected]
- Ying-Tung Chen
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ; [email protected]
- Matthew J. Lehner
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ; [email protected]; Department of Physics and Astronomy, University of Pennsylvania , 209 South 33rd Street, Philadelphia, PA 19125, USA
- Shiang-Yu Wang
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ; [email protected]
- Mike Alexandersen
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Young-Jun Choi
- Korea Astronomy and Space Science Institute , 776 Daedeok-daero, Yuseong-gu, Daejeon 34055, Republic of Korea
- Wesley C. Fraser
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ; [email protected]; Herzberg Astronomy and Astrophysics Research Centre, National Research Council of Canada , 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada
- A. Paula Granados Contreras
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, No.1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ; [email protected]
- Takashi Ito
- ORCiD
- Center for Computational Astrophysics, National Astronomical Observatory of Japan , Osawa 2-21-1, Mitaka, Tokyo, 181-8588, Japan
- Youngmin JeongAhn
- ORCiD
- Korea Astronomy and Space Science Institute , 776 Daedeok-daero, Yuseong-gu, Daejeon 34055, Republic of Korea
- Jianghui Ji
- ORCiD
- CAS Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences , Nanjing 210023, People's Republic of China
- JJ Kavelaars
- ORCiD
- Herzberg Astronomy and Astrophysics Research Centre, National Research Council of Canada , 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada; Department of Physics and Astronomy, University of Victoria , Victoria, BC V8W 2Y2, Canada
- Myung-Jin Kim
- ORCiD
- Korea Astronomy and Space Science Institute , 776 Daedeok-daero, Yuseong-gu, Daejeon 34055, Republic of Korea
- Samantha M. Lawler
- ORCiD
- Campion College and the Department of Physics, University of Regina , 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada
- Jian Li
- School of Astronomy and Space Science, Nanjing University , 163 Xianlin Avenue, Nanjing 210023, People's Republic of China; Key Laboratory of Modern Astronomy and Astrophysics in Ministry of Education, Nanjing University , Nanjing 210023, People's Republic of China
- Zhong-Yi Lin
- ORCiD
- Institute of Astronomy, National Central University , No. 300, Zhongda Road, Zhongli Dist., Taoyuan City 32001, Taiwan
- Patryk Sofia Lykawka
- ORCiD
- Kindai University , Shinkamikosaka 228-3, Higashiosaka-shi, Osaka, 577-0813, Japan
- Hong-Kyu Moon
- Korea Astronomy and Space Science Institute , 776 Daedeok-daero, Yuseong-gu, Daejeon 34055, Republic of Korea
- Surhud More
- ORCiD
- Inter-University Centre for Astronomy and Astrophysics , Ganeshkhind, Pune 411007, India; Kavli Institute for the Physics and Mathematics of the Universe (WPI) , 5-1-5 Kashiwanoha 2778583, Japan
- Marco A. Muñoz-Gutiérrez
- ORCiD
- Instituto de Astronomía y Ciencias Planetarias, Universidad de Atacama , Copayapu 485, Copiapó, Chile
- Keiji Ohtsuki
- ORCiD
- Department of Planetology, Kobe University , Kobe 657-8501, Japan
- Rosemary E. Pike
- ORCiD
- Center for Astrophysics , Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
- Tsuyoshi Terai
- ORCiD
- Subaru Telescope, National Astronomical Observatory of Japan , 650 North A‘ohoku Place, Hilo, HI 96720, USA
- Seitaro Urakawa
- ORCiD
- Japan Spaceguard Association, Bisei Spaceguard Center, 1716-3 Okura, Bisei, Ibara, Okayama 714-1411, Japan
- Fumi Yoshida
- ORCiD
- University of Occupational and Environmental Health , 1-1 Iseigaoka, Yahata, Kitakyushu 807-8555, Japan; Planetary Exploration Research Center , Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan
- Hui Zhang
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People's Republic of China
- Haibin Zhao
- ORCiD
- CAS Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences , Nanjing 210023, People's Republic of China; CAS Center for Excellence in Comparative Planetology , CAS, Hefei 230026, People's Republic of China
- Ji-Lin Zhou
- ORCiD
- School of Astronomy and Space Science, Nanjing University , 163 Xianlin Avenue, Nanjing 210023, People's Republic of China
- (The FOSSIL Collaboration)
- DOI
- https://doi.org/10.3847/1538-4365/acda1e
- Journal volume & issue
-
Vol. 267,
no. 2
p. 33
Abstract
From the first phase of the high-cadence Formation of the Outer Solar System: an Icy Legacy (FOSSIL) survey, we analyzed lightcurves, ranging from one to four nights in length, of 371 trans-Neptunian objects (TNOs) for periodicity. We found 29 TNOs with periodic lightcurves, one of which is a good candidate for a close/contact binary. Another of the periodic FOSSIL TNOs could potentially have the fastest of all known TNO spin rates, with a period of 1.3 hr. We do not have total confidence in the period and thus plan to obtain a more detailed lightcurve for confirmation. The periodic TNOs have an average rotation period of 11.2 hr, close to the value obtained by Alexandersen et al., which had similar cadence, but different from other surveys. In regards to contention in the literature about whether smaller TNOs are more irregular in shape and thus have larger lightcurve amplitudes, we found that there is a weak correlation between absolute magnitude and lightcurve amplitude in a subset of 194 FOSSIL TNOs, even when using the more appropriate brightest (minimum) absolute magnitude instead of the time-averaged value.
Keywords
