Light curves of the trans-Neptunian objects 1996 TP66 and 1994 VK8

S. J. Collander-Brown; A. Fitzsimmons; E. Fletcher; M. J. Irwin; I. P. Williams

doi:10.1046/j.1365-8711.1999.02805.x

Light curves of the trans-Neptunian objects 1996 TP66 and 1994 VK8

S. J. Collander-Brown^*, A. Fitzsimmons, E. Fletcher, M. J. Irwin, I. P. Williams

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

We have obtained a number of CCD images of two trans-Neptunian objects, 1994 VK8 and 1996 TP66, over two nights. The changes in magnitude of these objects have been examined, in a search for periodic variation. In the case of 1996 TP66, nothing other than random noise can be found to within the errors of ∼0.04 mag. Although a periodic signal is found for 1994 VK8, it appears to be an artefact, as the same frequency appears in the variation of sky brightness and is probably due to the sampling of the data. However, 1994 VK8 does exhibit a variation of ∼0.5 mag. This would suggest either significant non-sphericity or a change in surface composition over a large area. In either case 1994 VK8 warrants further investigation.

Original language	English
Pages (from-to)	588-592
Number of pages	5
Journal	Monthly Notices of the Royal Astronomical Society
Volume	308
Issue number	2
DOIs	https://doi.org/10.1046/j.1365-8711.1999.02805.x
Publication status	Published - 11 Sept 1999
Externally published	Yes

Keywords

Comets: general
Techniques: photometric

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1046/j.1365-8711.1999.02805.x

Cite this

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title = "Light curves of the trans-Neptunian objects 1996 TP66 and 1994 VK8",

abstract = "We have obtained a number of CCD images of two trans-Neptunian objects, 1994 VK8 and 1996 TP66, over two nights. The changes in magnitude of these objects have been examined, in a search for periodic variation. In the case of 1996 TP66, nothing other than random noise can be found to within the errors of ∼0.04 mag. Although a periodic signal is found for 1994 VK8, it appears to be an artefact, as the same frequency appears in the variation of sky brightness and is probably due to the sampling of the data. However, 1994 VK8 does exhibit a variation of ∼0.5 mag. This would suggest either significant non-sphericity or a change in surface composition over a large area. In either case 1994 VK8 warrants further investigation.",

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T1 - Light curves of the trans-Neptunian objects 1996 TP66 and 1994 VK8

AU - Collander-Brown, S. J.

AU - Fitzsimmons, A.

AU - Fletcher, E.

AU - Irwin, M. J.

AU - Williams, I. P.

PY - 1999/9/11

Y1 - 1999/9/11

N2 - We have obtained a number of CCD images of two trans-Neptunian objects, 1994 VK8 and 1996 TP66, over two nights. The changes in magnitude of these objects have been examined, in a search for periodic variation. In the case of 1996 TP66, nothing other than random noise can be found to within the errors of ∼0.04 mag. Although a periodic signal is found for 1994 VK8, it appears to be an artefact, as the same frequency appears in the variation of sky brightness and is probably due to the sampling of the data. However, 1994 VK8 does exhibit a variation of ∼0.5 mag. This would suggest either significant non-sphericity or a change in surface composition over a large area. In either case 1994 VK8 warrants further investigation.

AB - We have obtained a number of CCD images of two trans-Neptunian objects, 1994 VK8 and 1996 TP66, over two nights. The changes in magnitude of these objects have been examined, in a search for periodic variation. In the case of 1996 TP66, nothing other than random noise can be found to within the errors of ∼0.04 mag. Although a periodic signal is found for 1994 VK8, it appears to be an artefact, as the same frequency appears in the variation of sky brightness and is probably due to the sampling of the data. However, 1994 VK8 does exhibit a variation of ∼0.5 mag. This would suggest either significant non-sphericity or a change in surface composition over a large area. In either case 1994 VK8 warrants further investigation.

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KW - Techniques: photometric

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JF - Monthly Notices of the Royal Astronomical Society

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Light curves of the trans-Neptunian objects 1996 TP66 and 1994 VK8

Abstract

Keywords

ASJC Scopus subject areas

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