Primordial Ices In The Kuiper Belt

Details Primordial Ices In The Kuiper Belt Primordial Ices In The Kuiper Belt

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.6207t&link_type=abstract

American Astronomical Society, DPS meeting #41, #62.07

Statistics

Methodology

Scientific paper

We have undertaken a comprehensive near-infrared (NIR) photometric survey of Kuiper Belt Objects (KBOs) to locate primordial ices. Optical surveys provide very little constraint on ices, which are mostly featureless in the visible region. Thus, we have employed custom medium-width bandpass NIR filters that allow us to divide the KBOs into water, methane and neutral surface types. Our custom bandpass NIR filters provide a factor of 10 sensitivity increase over previous NIR photometric works. In contrast, standard JHK bandpasses are not optimized to detect volatile ices.
We have manufactured and installed our custom filters in the Gemini North (8.1 meter diameter) NIRI imager as well as the Magellan (6.5 meter diameter) PANIC imager. When completed, we will have surveyed most known KBOs brighter than a visual magnitude of 22, over 100 objects. We present the observing methodology and first results from the survey.

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