Papers › (3200) Phaethon Polarimetry in the Negative Branch: New Evidence for the Anhydrous...
(3200) Phaethon Polarimetry in the Negative Branch: New Evidence for the Anhydrous Nature of the DESTINY+ Target Asteroid
Jooyeon Geem, Masateru Ishiguro, Jun Takahashi, Hiroshi Akitaya, Koji S. Kawabata, Tatsuya Nakaoka, Ryo Imazawa, Fumiki Mori, Sunho Jin, Yoonsoo P. Bach, Hangbin Jo, Daisuke Kuroda, Sunao Hasegawa, Fumi Yoshida, Ko Ishibashi, Tomohiko Sekiguchi, Jin Beniyama, Tomoko Arai, Yuji Ikeda, Yoshiharu Shinnaka, Mikael Granvik, Lauri Siltala, Anlaug A. Djupvik, Anni Kasikov, Viktoria Pinter, Emil Knudstrup
The archive published only this paper's code-link row. Authors, date and abstract are from arXiv's metadata (CC0), read from the Kaggle arXiv metadata snapshot of 2026-09-12 where its title matched the archive's; the title is the archive's.
We report on the first polarimetric study of (3200) Phaethon, the target of JAXA's DESTINY^+ mission, in the negative branch to ensure its anhydrous nature and to derive an accurate geometric albedo. We conducted observations at low phase angles (Sun-target-observer angle, alpha = 8.8-32.4 deg) from 2021 October to 2022 January and found that Phaethon has a minimum polarization degree Pₘᵢₙ = -1.3 +- 0.1 %, a polarimetric slope h = 0.22 +- 0.02 % deg⁻¹, and an inversion angle alpha₀ = 19.9 +- 0.3 deg. The derived geometric albedo is p_V = 0.11 (in the range of 0.08-0.13). These polarimetric properties are consistent with anhydrous chondrites, and contradict hydrous chondrites and typical cometary nuclei.
Code
Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.
Code Syntology ran Syntology
Not run by Syntology. Nothing on this page verifies that the listed code works.
Results from the paper archive 2025-07-28
No leaderboard rows for this paper in the archive.
Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections