“TNOs are Cool”: A survey of the trans-Neptunian region
- E. Vilenius, C. Kiss, P. Hartogh
- Geology, PhysicsAstronomy & Astrophysics
- 1 June 2010
Context. A group of trans-Neptunian objects (TNOs) are dynamically related to the dwarf planet 136108 Haumea. Ten of them show strong indications of water ice on their surfaces, are assumed to have…
Short-term variability of a sample of 29 trans-Neptunian objects and Centaurs
- A. Thirouin, J. Ortiz, R. Duffard, P. Santos-Sanz, F. Aceituno, N. Morales
- Physics, Geology
- 27 April 2010
Aims. We attempt to increase the number of trans-Neptunian objects (TNOs) whose short-term variability has been studied and compile a high quality database with the least possible biases, which may…
Transneptunian objects and Centaurs from light curves
- R. Duffard, J. Ortiz, A. Thirouin, P. Santos-Sanz, N. Morales
- Physics, Geology
- 1 October 2009
Aims. We compile and analyze an extended database of light curve parameters scattered in the literature to search for correlations and study physical properties, including internal structure…
Possible ring material around centaur (2060) Chiron
- J. Ortiz, R. Duffard, A. Thirouin
- Physics, Geology
- 23 January 2015
We propose that several short duration events observed in past stellar occultations by Chiron were produced by rings material. From a reanalysis of the stellar occultation data in the literature we…
A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation
- B. Sicardy, J. Ortiz, H. Hernandez-Toledo
- Physics, GeologyNature
- 27 October 2011
The observation of a multi-chord stellar occultation by Eris on 6 November 2010 is reported, consistent with a spherical shape for Eris, and it is anticipated that this atmosphere may periodically sublimate as Eris approaches its perihelion, at 37.8 astronomical units from the Sun.
``TNOs are Cool'': A survey of the trans-Neptunian region . III. Thermophysical properties of 90482 Orcus and 136472 Makemake
- T. Lim, J. Stansberry, N. Thomas
- Physics
- 1 July 2010
Context. The goal of the Herschel open time programme “TNOs are Cooll” is to derive the physical and thermal properties for a large sample of Centaurs, and trans-Neptunian objects (TNOs), including…
Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation
- J. Ortiz, B. Sicardy, M. Emilio
- Physics, GeologyNature
- 21 November 2012
The disappearances and reappearances of the star were abrupt, showing that Makemake has no global Pluto-like atmosphere at an upper limit of 4–12 nanobar (1σ) for the surface pressure, although a localized atmosphere is possible.
Physical Characterization of Active Asteroid (6478) Gault
- J. Sanchez, V. Reddy, B. Sharkey
- Physics, GeologyAstrophysical Journal
- 15 July 2019
Main belt asteroid (6478) Gault has been dynamically linked with two overlapping asteroid families: Phocaea, dominated by S-type asteroids, and Tamara, dominated by low-albedo C-types. This object…
A 2 km-size asteroid challenging the rubble-pile spin barrier – A case for cohesion
- D. Polishook, N. Moskovitz, O. Aharonson
- Physics, GeologyIcarus (New York, N.Y. )
- 22 December 2015
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