Rotation and cometary activity of KBO (29981) 1999 TD10

Y. J. Choi; Noah Brosch; Dina Prialnik

doi:10.1016/S0019-1035(03)00194-5

Rotation and cometary activity of KBO (29981) 1999 TD₁₀

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Abstract

We describe observations of the scattered Kuiper Belt object (29981) 1999 TD₁₀ performed during five observing runs at two observatories, over 370 days from 2000 September to 2001 September. They show significant brightness variations that fit a double-peaked lightcurve with period 15.448 ± 0.012 h in V and R bands. The phase effect in V band, 0.09 ± 0.01 mag deg^-1, is smaller than that of Pluto but larger than that of several KBOs, while in R band it is 0.030 ± 0.005 mag deg^-1. We find color variation between the two bands, which implies a non-homogeneous albedo distribution on the surface. Evidence of surface activity near perihelion in the form of a coma/tail is presented using radial image profiles and a 2D contour map.

Original language	English
Pages (from-to)	101-111
Number of pages	11
Journal	Icarus
Volume	165
Issue number	1
DOIs	https://doi.org/10.1016/S0019-1035(03)00194-5
State	Published - Sep 2003

Keywords

Asteroids
Kuiper belt objects
Rotation

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10.1016/S0019-1035(03)00194-5

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@article{244656b7357047f1b10ecb793dd27b79,

title = "Rotation and cometary activity of KBO (29981) 1999 TD10",

abstract = "We describe observations of the scattered Kuiper Belt object (29981) 1999 TD10 performed during five observing runs at two observatories, over 370 days from 2000 September to 2001 September. They show significant brightness variations that fit a double-peaked lightcurve with period 15.448 ± 0.012 h in V and R bands. The phase effect in V band, 0.09 ± 0.01 mag deg-1, is smaller than that of Pluto but larger than that of several KBOs, while in R band it is 0.030 ± 0.005 mag deg-1. We find color variation between the two bands, which implies a non-homogeneous albedo distribution on the surface. Evidence of surface activity near perihelion in the form of a coma/tail is presented using radial image profiles and a 2D contour map.",

keywords = "Asteroids, Kuiper belt objects, Rotation",

author = "Choi, {Y. J.} and Noah Brosch and Dina Prialnik",

note = "Funding Information: Observations at the Wise Observatory are supported in part by the Israel Science Foundation (ISF). We are grateful to the ISF for additional support to this specific project. NB is grateful for the support of the Austrian Friends of Tel Aviv University. We are thankful for the Mt. Maidanak observations performed by Dr. Mansur Ibrahimov.",

year = "2003",

month = sep,

doi = "10.1016/S0019-1035(03)00194-5",

language = "אנגלית",

volume = "165",

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journal = "Icarus",

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T1 - Rotation and cometary activity of KBO (29981) 1999 TD10

AU - Choi, Y. J.

AU - Brosch, Noah

AU - Prialnik, Dina

N1 - Funding Information: Observations at the Wise Observatory are supported in part by the Israel Science Foundation (ISF). We are grateful to the ISF for additional support to this specific project. NB is grateful for the support of the Austrian Friends of Tel Aviv University. We are thankful for the Mt. Maidanak observations performed by Dr. Mansur Ibrahimov.

PY - 2003/9

Y1 - 2003/9

N2 - We describe observations of the scattered Kuiper Belt object (29981) 1999 TD10 performed during five observing runs at two observatories, over 370 days from 2000 September to 2001 September. They show significant brightness variations that fit a double-peaked lightcurve with period 15.448 ± 0.012 h in V and R bands. The phase effect in V band, 0.09 ± 0.01 mag deg-1, is smaller than that of Pluto but larger than that of several KBOs, while in R band it is 0.030 ± 0.005 mag deg-1. We find color variation between the two bands, which implies a non-homogeneous albedo distribution on the surface. Evidence of surface activity near perihelion in the form of a coma/tail is presented using radial image profiles and a 2D contour map.

AB - We describe observations of the scattered Kuiper Belt object (29981) 1999 TD10 performed during five observing runs at two observatories, over 370 days from 2000 September to 2001 September. They show significant brightness variations that fit a double-peaked lightcurve with period 15.448 ± 0.012 h in V and R bands. The phase effect in V band, 0.09 ± 0.01 mag deg-1, is smaller than that of Pluto but larger than that of several KBOs, while in R band it is 0.030 ± 0.005 mag deg-1. We find color variation between the two bands, which implies a non-homogeneous albedo distribution on the surface. Evidence of surface activity near perihelion in the form of a coma/tail is presented using radial image profiles and a 2D contour map.

KW - Asteroids

KW - Kuiper belt objects

KW - Rotation

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AN - SCOPUS:1542426177

VL - 165

SP - 101

EP - 111

JO - Icarus

JF - Icarus

SN - 0019-1035

IS - 1

ER -

Rotation and cometary activity of KBO (29981) 1999 TD₁₀

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Keywords

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