NDLI: Photometry of Centaurs and trans-Neptunian objects: 2060 Chiron (1977 UB), 10199 Chariklo (1997 CU26), 38628 Huya (2000 EB173), 28978 Ixion (2001 KX76), and 90482 Orcus (2004 DW)

Content Provider	Springer Nature Link
Author	Galiazzo, M. Fuente Marcos, C. Fuente Marcos, R. Carraro, G. Maris, M. Montalto, M.
Copyright Year	2016
Abstract	Both Centaurs and trans-Neptunian objects (TNOs) are minor bodies found in the outer Solar System. Centaurs are a transient population that moves between the orbits of Jupiter and Neptune, and they probably diffused out of the TNOs. TNOs move mainly beyond Neptune. Some of these objects display episodic cometary behaviour; a few percent of them are known to host binary companions. Here, we study the light-curves of two Centaurs—2060 Chiron (1977 UB) and 10199 Chariklo (1997 CU26)—and three TNOs—38628 Huya (2000 EB173), 28978 Ixion (2001 KX76), and 90482 Orcus (2004 DW)—and the colours of the Centaurs and Huya. Precise, $\sim1~\%$ , $R$ -band absolute CCD photometry of these minor bodies acquired between 2006 and 2011 is presented; the new data are used to investigate the rotation rate of these objects. The colours of the Centaurs and Huya are determined using $\mathit{BVRI}$ photometry. The point spread function of the five minor bodies is analysed, searching for signs of a coma or close companions. Astrometry is also discussed. A periodogram analysis of the light-curves of these objects gives the following rotational periods: $5.5\pm0.4~\mbox{h}$ for Chiron, $7.0\pm 0.6~\mbox{h}$ for Chariklo, $4.45\pm0.07~\mbox{h}$ for Huya, $12.4\pm0.3~\mbox{h}$ for Ixion, and $11.9\pm0.5~\mbox{h}$ for Orcus. The colour indices of Chiron are found to be $B-V=0.53\pm0.05$ , $V-R=0.37\pm0.08$ , and $R-I=0.36\pm0.15$ . The values computed for Chariklo are $V-R=0.62\pm0.07$ and $R-I=0.61\pm0.07$ . For Huya, we find $V-R=0.58\pm0.09$ and $R-I=0.64\pm0.20$ . Our rotation periods are similar to and our colour values are consistent with those already published for these objects. We find very low levels of cometary activity (if any) and no sign of close or wide binary companions for these minor bodies.
Starting Page	1
Ending Page	15
Page Count	15
File Format	PDF
ISSN	0004640X
Journal	Astrophysics and Space Science
Volume Number	361
Issue Number	7
e-ISSN	1572946X
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-06-06
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Minor planets, asteroids: individual: 2060 Chiron (1977 UB) Minor planets, asteroids: individual: 10199 Chariklo (1997 CU26) Minor planets, asteroids: individual: 38628 Huya (2000 EB173) Minor planets, asteroids: individual: 28978 Ixion (2001 KX76) Minor planets, asteroids: individual: 90482 Orcus (2004 DW) Techniques: photometric Astrophysics and Astroparticles Astronomy, Observations and Techniques Cosmology Extraterrestrial Physics, Space Sciences Astrobiology
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

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Photometry of Centaurs and trans-Neptunian objects: 2060 Chiron (1977 UB), 10199 Chariklo (1997 CU26), 38628 Huya (2000 EB173), 28978 Ixion (2001 KX76), and 90482 Orcus (2004 DW)

Taxonomy of trans-Neptunian objects and Centaurs as seen from spectroscopy

A mid-term astrometric and photometric study of trans-Neptunian object (90482) Orcus

Properties of the nuclei of Centaurs Chiron and Chariklo

Search for cometary activity in three Centaurs [(60558) Echeclus, 2000 FZ53 and 2000 GM137] and two trans-Neptunian objects [(29981) 1999 TD10 and (28978) Ixion]*

Modelling the activity of 2060 Chiron

Photometric and spectroscopic observations of (2060) Chiron at the ESO Very Large Telescope

The first UV spectrum of 2060 Chiron ⋆

Surface characterization of 28978 Ixion (2001 KX76)

Photometry of Centaurs and trans-Neptunian objects: 2060 Chiron (1977 UB), 10199 Chariklo (1997 CU26), 38628 Huya (2000 EB173), 28978 Ixion (2001 KX76), and 90482 Orcus (2004 DW)

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Photometry of Centaurs and trans-Neptunian objects: 2060 Chiron (1977 UB), 10199 Chariklo (1997 CU26), 38628 Huya (2000 EB173), 28978 Ixion (2001 KX76), and 90482 Orcus (2004 DW)

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Photometry of Centaurs and trans-Neptunian objects: 2060 Chiron (1977 UB), 10199 Chariklo (1997 CU26), 38628 Huya (2000 EB173), 28978 Ixion (2001 KX76), and 90482 Orcus (2004 DW)