The methane ice rich surface of large TNO 2005 FY9: a Pluto-twin in the trans-neptunian belt?

  title={The methane ice rich surface of large TNO 2005 FY9: a Pluto-twin in the trans-neptunian belt?},
  author={Javier Licandro and Javier Licandro and Noem{\'i} Pinilla-Alonso and Marco Pedani and Ernesto Oliva and Gian Paolo Tozzi and William M. Grundy},
  journal={Astronomy and Astrophysics},
Context. The population of known large trans-neptunian objects (TNOs) is growing very fast and the knowledge of their physical properties is a key issue to understand the origin and evolution of the Solar System. Aims. In this paper we studied the surface composition of the recently discovered TNO 2005 FY 9 , one of the largest known TNOs (~0.7 times the diameter of Pluto, i.e. 1600 km, if the albedo is similar, or 3100–1550 km in diameter assuming an albedo range 0.2  p V Methods. We report… 

Figures and Tables from this paper

Visible spectroscopy of 2003 UB313: Evidence for N2 ice on the surface of the largest TNO?
The recent discovery of two large trans-Neptunian objects (TNOs) 2003 UB313 and 2005 FY9, with surface properties similar to those of Pluto, provides an exciting new laboratory for the study of
TNO surface ices - Observations of the TNO 55638 (2002 VE$_\mathsf{95}$) and analysis of the population's spectral properties
Aims. We investigate the surface composition of Centaurs and Trans-Neptunian objects (TNOs) to get constraints on the formation and the evolution of this population. Methods. We report visible and
Trans-neptunian object (55636) 2002 TX$\mathsf{_{300}}$, a fresh icy surface in the outer solar system
Context. The knowledge of the physical properties of the population of known large trans-Neptunian objects (TNOs) is a key issue in understanding the origin and evolution of the Solar System. In
The spectrum of Pluto, 0.40–0.93 μm - I. Secular and longitudinal distribution of ices and complex organics
Context. During the past 30 years the surface of Pluto has been characterized and its variability monitored through continuous nearinfrared spectroscopic observations. But in the visible range only a
The very homogeneous surface of the dwarf planet Makemake
The dwarf planet (136472) Makemake is one of the largest trans-Neptunian objects discovered to date. Noteworthy, the size and surface temperature of this celestial body put it in a transition region
Visible spectroscopy in the neighborhood of 2003EL61
Context. The recent discovery of a group of trans-neptunian objects (TNOs) in a narrow region of the orbital parameter space and with surfaces composed of almost pure water ice, being 2003 EL 61 its
Comparative Kbology: Using Surface Spectra of Triton, Pluto, and Charon to Investigate Atmospheric, Surface, and Interior Processes on Kuiper Belt Objects
We present the results of an investigation to determine the longitudinal (zonal) distributions and temporal evolution of ices on the surface of Triton. Between 2002 and 2014, we obtained 63 nights of
Short-term rotational variability in the large TNO 2005FY9
Context. Despite the fact that 2005FY 9 is one of the largest trans-Neptunian objects (TNOs) and a dwarf planet candidate, little is known about this object apart from constraints on its surface


Water ice on the surface of the large TNO 2004 DW
We have obtained visible and near infrared spectra of the Trans Neptunian object 2004 DW, a few days after its discovery, at the Telescopio Nazionale Galileo (TNG). 2004 DW belongs to the plutino
Crystalline water ice on the Kuiper belt object (50000) Quaoar
It is concluded that Quaoar has been recently resurfaced, either by impact exposure of previously buried (shielded) ices or by cryovolcanic outgassing, or by a combination of these processes.
Distribution and Evolution of CH4, N2, and CO Ices on Pluto's Surface: 1995 to 1998
Abstract We present new near-infrared spectra of the planet Pluto obtained at Lowell Observatory on 83 nights during 1995–1998. The dense temporal sampling of our observations enables us to measure
NICS-TNG infrared spectroscopy of trans-neptunian objects 2000 EB173 and 2000 WR106
We report complete near-infrared (0.9-2.4 μ m) spectral observations of trans-neptunian objects (TNOs) 2000 EB173 and 2000 WR106 collected using the new Near Infrared Camera Spectrometer (NICS)
Spatial and Compositional Constraints on Non-ice Components and H2O on Pluto's Surface
We present four new near-infrared spectra of Pluto, measured separately from its satellite Charon during four HST/NICMOS observations in 1998, timed to sample four evenly spaced longitudes on Pluto.
The surface and atmosphere of Pluto
Surface Ices and the Atmospheric Composition of Pluto
Observations of the 1.4- to 2.4-micrometer spectrum of Pluto reveal absorptions of carbon monoxide and nitrogen ices and confirm the presence of solid methane. Frozen nitrogen is more abundant than
Synoptic CCD Spectrophotometry of Pluto Over the Past 15 Years
Over the 15 years from 1980 to 1994, the same spectrometer has been used to obtain spectrophotometric observations of Pluto+Charon over the wavelength range from 0.5 to 1.0 μm. This time period
Near-Infrared Spectroscopy of Simple Hydrocarbons and Carbon Oxides Diluted in Solid N2and as Pure Ices: Implications for Triton and Pluto
In this paper are presented near-infrared laboratory spectra of pure ices of CH4, C2H4, C2H6, CO, and CO2, as well as a systematic study of changes in their spectral behavior when isolated in a
The Structure of Pluto's Atmosphere from the 2002 August 21 Stellar Occultation
We have observed the 2002 August 21 occultation by Pluto of theR ¼ 15:7mag star P131.1, using 0.5 s cadence observations in integrated white light with the Williams College frame-transfer,