A Comparative Astrochemical Study of NGC 7538 IRS 1 and 9

Details A Comparative Astrochemical Study of NGC 7538 IRS 1 and 9 A Comparative Astrochemical Study of NGC 7538 IRS 1 and 9

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007noao.prop..132l&link_type=abstract

NOAO Proposal ID #2007B-0132

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We propose a comparative astrochemical study of the lines of sight toward two massive young stars embedded in the NGC 7538 molecular cloud. We already have a substantial set of spectra of IRS 1, with which we have measured abundances of 7 molecules, several of which have remarkably high abundances. Since no other source has been observed in this way, we don't know whether these abundances are typical of the gas around a newly formed massive star, or if they result from the unique radiation environment of IRS 1. We will answer this question by obtaining comparable spectra of IRS 9, a source in the same cloud, but without the ultraviolet radiation field of IRS 1.

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