Search for Organics in 103P/Hartley 2 in the Near-IR with GNIRS

Details Search for Organics in 103P/Hartley 2 in the Near-IR with GNIRS Search for Organics in 103P/Hartley 2 in the Near-IR with GNIRS

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1557w&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1557

Physics

Scientific paper

We report on the search in comet 103P/Hartley 2 for PAHs near 3.28 μm, for organic iso-nitriles near 4.9 μm, and for the 4.62 μm X-CN band with G N I R S i n s t r ume n t o n G emi n i - N . O n 2010 Dec 5 UT, which was soon after GNIRS came on the telescope and near the peak of the light curve periodicity [1], spectra were obtained in the L-band (R~1700, high quality data) and M-band (R~4300, poor quality). The search for organics was motivated by EPOXI Mission encounter spectra of an organic feature in the near-IR [2] and anomalous CN emissions [3,4]. The data are being analyzed to derive flux limits on potential PAH emission bands with a focus on the relatively small species detected in Stardust Mission return samples from comet 81P/ Wild 2 [5,6].

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