Near-infrared spectral monitoring of Triton with IRTF/SpeX II: Spatial distribution and evolution of ices

  title={Near-infrared spectral monitoring of Triton with IRTF/SpeX II: Spatial distribution and evolution of ices},
  author={William M. Grundy and Leslie A. Young and J. Stansberry and Marc W. Buie and Cathy B. Olkin and Eliot F. Young},

On the surface composition of Triton’s southern latitudes

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

Evolution of the N2 frost distribution on Triton during thousands of terrestrial years

Triton is the largest satellite of the planet Neptune. It is also the coolest body in the solar system, with a surface temperature of about 38 K [10]. These frigid surface conditions suggest that

Ice Mineralogy across and into the Surfaces of Pluto, Triton, and Eris

We present three near-infrared spectra of Pluto taken with the Infrared Telescope Facility and SpeX, an optical spectrum of Triton taken with the MMT and the Red Channel Spectrograph, and previously

Detection of CO in Triton's atmosphere and the nature of surface-atmosphere interactions

Context. Triton possesses a thin atmosphere, primarily composed of nitrogen, sustained by the sublimation of surface ices. Aims. We aim at determining the composition of Triton’s atmosphere to

New determination of the HCN profile in the stratosphere of Neptune from millimeter-wave spectroscopy (Research Note)

Context. Periodic monitoring of the atmospheric composition is the cornerstone of planetary atmospheric science. It reveals temporal and/or spatial variations. Ground-based observations of rotational



Water Ice on Triton

We discuss the spectroscopic detection of H2O ice on Triton, evidenced by the broad absorption bands in the near infrared at 1.55 and 2.04 μm. The detection of water ice on Triton reconfirms earlier

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

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


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 instruments

Historical Photometric Evidence for Volatile Migration on Triton

Abstract Analysis of CCD images of Triton obtained with the 1.5-m telescope on Palomar Mountain shows that in the time period surrounding the Voyager 2 encounter with the satellite (1985-1990), no

Global color and albedo variations on Triton

Global multispectral mosaics of Triton have been produced from Voyager approach images; six spectral units are defined and mapped. The margin of the south polar cap (SPC) is scalloped and ranges in

The wavelength dependence of Triton's light curve

Using Voyager observations, we demonstrate that Triton's orbital light curve is strongly wavelength dependent, a characteristic which readily explains some of the apparent discrepancies among


Voyager 2 ultraviolet spectrometer occultation observations at Triton have revealed two constituents of the troposphere: CH4 and another absorber visible between 1400 and 1600 A below about 20 km