Evidence of N2-ice on the surface of the icy dwarf Planet 136472 (2005 FY9)

  title={Evidence of N2-ice on the surface of the icy dwarf Planet 136472 (2005 FY9)},
  author={S. Tegler and W. Grundy and F. Vilas and W. Romanishin and D. Cornelison and G. Consolmagno},
Abstract We present high signal precision optical reflectance spectra of 2005 FY9 taken with the Red Channel Spectrograph and the 6.5-m MMT telescope on 2006 March 4 UT (5000–9500 A; 6.33 A pixel −1 ) and 2007 February 12 UT (6600–8500 A; 1.93 A pixel −1 ). From cross-correlation experiments between the 2006 March 4 spectrum and a pure CH 4 -ice Hapke model, we find the CH 4 -ice bands in the MMT spectrum are blueshifted by 3 ± 4 A relative to bands in the pure CH 4 -ice Hapke spectrum. The… Expand

Tables from this paper

Stratification of Methane Ice on Eris' Surface
We present new photometric and spectroscopic data of the dwarf planet Eris obtained on 2006 October and 2007 December with the Very Large Telescopes at ESO, Chile. We use three different instrumentsExpand
Digging into the surface of the icy dwarf planet Eris
Abstract We describe optical spectroscopic observations of the icy dwarf planet Eris with the 6.5-m MMT telescope and the Red Channel Spectrograph. We report a correlation, that is at the edge ofExpand
Near-infrared spectral monitoring of Pluto’s ices: Spatial distribution and secular evolution
Abstract We report results from monitoring Pluto’s 0.8 to 2.4 μm reflectance spectrum with IRTF/SpeX on 65 nights over the dozen years from 2001 to 2012. The spectra show vibrational absorptionExpand
Near-infrared spectral monitoring of Triton with IRTF/SpeX II: Spatial distribution and evolution of ices
Abstract This report arises from an ongoing program to monitor Neptune’s largest moon Triton spectroscopically in the 0.8 to 2.4 μm range using IRTF/SpeX. Our objective is to search for changes onExpand
Rotationally resolved spectroscopy of dwarf planet (136472) Makemake
Context. Icy dwarf planets are key for studying the chemical and physical states of ices in the outer solar system. The study of secular and rotational variations gives us hints of the processes thatExpand
The surface compositions of Pluto and Charon
Abstract The surface of Pluto as it is understood on the eve of the encounter of the New Horizons spacecraft (mid-2015) consists of a spatially heterogeneous mix of solid N 2 , CH 4 , CO, C 2 H 6 ,Expand
Long-term photometric monitoring of the dwarf planet (136472) Makemake
We studied the rotational properties of the dwarf planet Makemake. The photometric observations were carried out at different telescopes between 2006 and 2017. Most of the measurements were acquiredExpand
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 ofExpand
A spectroscopic analysis of Jupiter-coupled object (52872) Okyrhoe, and TNOs (90482) Orcus and (73480) 2002 PN34
Aims. We present new visible and near-infrared photometric measurements and near-infrared spectroscopic measurements for three outer solar system small bodies, the Jupiter-coupled object (52872)Expand
ESO large program about transneptunian objects: surface variations on (47171) 1999 TC36
Aims. We investigate the surface composition of the Plutino (47171) 1999 TC36. Methods. We completed near-infrared photometric and spectroscopic observations of (47171) 1999 TC36 with the adaptiveExpand


We present high signal precision optical reflectance spectra of the large Kuiper Belt objects 2005 FY9 and 2003 EL61. The spectrum of 2005 FY9 exhibits strong CH4 ice bands. A comparison between theExpand
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 ofExpand
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 measureExpand
Interpretation of the Near-IR Spectra of the Kuiper Belt Object
Visible and near-IR observations of the Kuiper Belt Object (136472) 2005 FY(9) have indicated the presence of unusually long (1 cm or more) optical path lengths in a layer of methane ice. UsingExpand
The methane ice rich surface of large TNO 2005 FY9: a Pluto-twin in the trans-neptunian belt?
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 theExpand
Composition, Physical State, and Distribution of Ices at the Surface of Triton
This paper presents the analysis of near-infrared observations of the icy surface of Triton, recorded on 1995 September 7, with the cooled grating spectrometer CGS4 at the United Kingdom InfraredExpand
Methane and ethane on the bright Kuiper Belt object 2005 FY9
The spectrum of the bright Kuiper Belt object 2005 FY9 from 0.34 to 2.5μm is dominated by the red coloring of many outer solar system objects in the optical wavelength regime and by absorption due toExpand
The Temperature-Dependent Spectrum of Methane Ice I between 0.7 and 5 μm and Opportunities for Near-Infrared Remote Thermometry
New infrared absorption coefficient spectra of pure methane ice I were measured at temperatures between 30 and 90 K, over wavelengths from 0.7 to 5 μm, along with spectra of methane ice II at 20 KExpand
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 aExpand
Discovery of a Planetary-sized Object in the Scattered Kuiper Belt
We present the discovery and initial physical and dynamical characterization of the object 2003 UB313. The object is sufficiently bright that for all reasonable values of the albedo it is certain toExpand