Neon and Sulfur Abundances in M33

Details Neon and Sulfur Abundances in M33 Neon and Sulfur Abundances in M33

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop..520f&link_type=abstract

Spitzer Proposal ID #520

Computer Science

Scientific paper

This program contains three separate small projects: 1. The first galaxy ever discovered at 350 microns (Khan 2005) has several IRAC sources near it based on the IRAC GTO Shallow Survey. This imaging is for an improved SED and to look for possible companions. 2. As a follow up of our ISO and ground based investigations of M33, we will obtain new, high signal/noise measurements of neon and sulfur fine structure lines with the IRS to determine much more accurately how the Ne/H and S/H gradients behave compared with O/H and to determine which explanation for the discrepancies in abundance gradients is most likely. 3. Three 24-micron-selected sources in the HDFN are too faint for redshifts to be measured via visible spectroscopy. IRS spectra may give redshifts from dust features.

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