Мақола

Optical observations of NEA 3200 Phaethon (1983 TB) during the 2017 apparition

M.-J. KimKorea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, KoreaHee-Jae LeeChungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, KoreaS.-M. LeeKorea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, KoreaD.-H. KimChungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, KoreaFumi YoshidaPlanetary Exploration Research Center, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, JapanP. BartczakAstronomical Observatory Institute, Faculty of Physics, Adam Mickiewicz University, Słoneczna 36, 60-286 Poznań, PolandG. DudzińskiAstronomical Observatory Institute, Faculty of Physics, Adam Mickiewicz University, Słoneczna 36, 60-286 Poznań, PolandJ. ParkKorea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, KoreaYoung‐Jun ChoiKorea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, KoreaHong-Kyu MoonKorea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, KoreaHong-Suh YimKorea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, KoreaJihoon ChoiUniversity of Science and Technology, 217, Gajeong-ro, Yuseong-gu, Daejeon 34113, KoreaEna ChoiKorea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 34055, KoreaJ. N. YoonChungbuk National University Observatory, 802-3 Euntan-ri, Jincheon-gun, Chungcheongbuk-do, KoreaA. SerebryanskiyFesenkov Astrophysical Institute, Observatory 23, 050020 Almaty, KazakhstanM. KrugovFesenkov Astrophysical Institute, Observatory 23, 050020 Almaty, KazakhstanI. RevaFesenkov Astrophysical Institute, Observatory 23, 050020 Almaty, KazakhstanK. E. ErgashevUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences, 33 Astronomicheskaya str., Tashkent, 100052, UzbekistanО. БурхоновUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences, 33 Astronomicheskaya str., Tashkent, 100052, UzbekistanSh. A. EhgamberdievUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences, 33 Astronomicheskaya str., Tashkent, 100052, UzbekistanY. TurayevUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences, 33 Astronomicheskaya str., Tashkent, 100052, UzbekistanZhong-Yi LinInstitute of Astronomy, National Central University, No. 300, Zhongda Rd., Zhongli Dist., Taoyuan City 32001, TaiwanTomoko AraiPlanetary Exploration Research Center, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, JapanK. OhtsukaTakashi ItôNational Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo 181-8588, JapanSeitaro UrakawaJapan Spaceguard Association, Bisei Spaceguard Center, 1716-3 Okura, Bisei-cho, Ibara, Okayama 714-1411, JapanMasateru IshiguroSeoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea

Springer Link (Chiba Institute of Technology)repository2018en

ABI

Аннотация

Context. The near-Earth asteroid 3200 Phaethon (1983 TB) is an attractive object not only from a scientific viewpoint but also because of JAXA’s DESTINY+ target. The rotational lightcurve and spin properties were investigated based on the data obtained in the ground-based observation campaign of Phaethon. Aims. We aim to refine the lightcurves and shape model of Phaethon using all available lightcurve datasets obtained via optical observation, as well as our time-series observation data from the 2017 apparition. Methods. Using eight 12-m telescopes and an optical imager, we acquired the optical lightcurves and derived the spin parameters of Phaethon. We applied the lightcurve inversion method and SAGE algorithm to deduce the convex and non-convex shape model and pole orientations. Results. We analysed the optical lightcurve of Phaethon and derived a synodic and a sidereal rotational periods of 3.6039 h, with an axis ratio of a∕b = 1.07. The ecliptic longitude (λp) and latitude (βp) of the pole orientation were determined as (308°, −52°) and (322°, −40°) via two independent methods. A non-convex model from the SAGE method, which exhibits a concavity feature, is also presented.

Ҳали таржима қилинмаган

Мавзулар

Astro and Planetary Science Planetary Science and Exploration Geology and Paleoclimatology Research

Идентификаторлар

DOI: 10.1051/0004-6361/201833593/pdf

Иқтибослар ва манбалар

0 та иқтибос27 та фойдаланилган манба

Кўрсаткичлар — AkademScholar · Тез орада