Nucleus of active asteroid 358P/Pan-STARRS (P/2012 T1)

Agarwal, Jessica; Mommert, M.

doi:10.1051/0004-6361/201832761

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Nucleus of active asteroid 358P/Pan-STARRS (P/2012 T1)

MPS-Authors

/persons/resource/persons123097

Agarwal, Jessica
Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Agarwal, J., & Mommert, M. (2018). Nucleus of active asteroid 358P/Pan-STARRS (P/2012 T1). Astronomy and Astrophysics, 616: A54. doi:10.1051/0004-6361/201832761.

Cite as: https://hdl.handle.net/21.11116/0000-0001-F5B7-C

Abstract

Context. The dust emission from active asteroids is likely driven by collisions, fast rotation, sublimation of embedded ice, and combinations of these. Characterising these processes leads to a better understanding of their respective influence on the evolution of the asteroid population.

Aims. We study the role of fast rotation in the active asteroid 358P (P 2012/T1).

Methods. We obtained two nights of deep imaging of 358P with SOAR/Goodman and VLT/FORS2. We derived the rotational light curve from time-resolved photometry and searched for large fragments and debris >8 mm in a stacked, ultra-deep image.

Results. The nucleus has an absolute magnitude of m_R = 19.68, corresponding to a diameter of 530 m for standard assumptions on the albedo and phase function of a C-type asteroid. We do not detect fragments or debris that would require fast rotation to reduce surface gravity to facilitate their escape. The 10-h light curve does not show an unambiguous periodicity.