Properties of the Irregular Satellite System around Uranus Inferred from K2, Herschel, and Spitzer Observations

A. Farkas-Takács, C. Kiss, A. Pál, L. Molnár, Gy M. Szabó, O. Hanyecz, K. Sárneczky, R. Szabó, G. Marton, M. Mommert, R. Szakáts, T. Müller, L. L. Kiss

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In this paper, we present visible-range light curves of the irregular Uranian satellites Sycorax, Caliban, Prospero, Ferdinand, and Setebos taken with the Kepler Space Telescope over the course of the K2 mission. Thermal emission measurements obtained with the Herschel/PACS and Spitzer/MIPS instruments of Sycorax and Caliban were also analyzed and used to determine size, albedo, and surface characteristics of these bodies. We compare these properties with the rotational and surface characteristics of irregular satellites in other giant planet systems and also with those of main belt and Trojan asteroids and trans-Neptunian objects. Our results indicate that the Uranian irregular satellite system likely went through a more intense collisional evolution than the irregular satellites of Jupiter and Saturn. Surface characteristics of Uranian irregular satellites seem to resemble the Centaurs and trans-Neptunian objects more than irregular satellites around other giant planets, suggesting the existence of a compositional discontinuity in the young solar system inside the orbit of Uranus.

Original languageEnglish
Article number119
JournalAstronomical Journal
Volume154
Issue number3
DOIs
Publication statusPublished - Sep 1 2017

Fingerprint

Uranus (planet)
Uranus
trans-Neptunian objects
planets
planet
Trojan asteroids
asteroid belts
Saturn
thermal emission
albedo
Jupiter (planet)
Jupiter
solar system
asteroid
light curve
discontinuity
telescopes
orbits

Keywords

  • planets and satellites: individual (U XVI Caliban, U XVII Sycorax, U XVIII Prospero, U XIX Setebos, U XXI Trincluo, U XXIV Ferdinand)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Properties of the Irregular Satellite System around Uranus Inferred from K2, Herschel, and Spitzer Observations. / Farkas-Takács, A.; Kiss, C.; Pál, A.; Molnár, L.; Szabó, Gy M.; Hanyecz, O.; Sárneczky, K.; Szabó, R.; Marton, G.; Mommert, M.; Szakáts, R.; Müller, T.; Kiss, L. L.

In: Astronomical Journal, Vol. 154, No. 3, 119, 01.09.2017.

Research output: Contribution to journalArticle

Farkas-Takács, A, Kiss, C, Pál, A, Molnár, L, Szabó, GM, Hanyecz, O, Sárneczky, K, Szabó, R, Marton, G, Mommert, M, Szakáts, R, Müller, T & Kiss, LL 2017, 'Properties of the Irregular Satellite System around Uranus Inferred from K2, Herschel, and Spitzer Observations', Astronomical Journal, vol. 154, no. 3, 119. https://doi.org/10.3847/1538-3881/aa8365
Farkas-Takács, A. ; Kiss, C. ; Pál, A. ; Molnár, L. ; Szabó, Gy M. ; Hanyecz, O. ; Sárneczky, K. ; Szabó, R. ; Marton, G. ; Mommert, M. ; Szakáts, R. ; Müller, T. ; Kiss, L. L. / Properties of the Irregular Satellite System around Uranus Inferred from K2, Herschel, and Spitzer Observations. In: Astronomical Journal. 2017 ; Vol. 154, No. 3.
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