Spitzer Spectroscopy of Young Stellar Disks in Lynds 1228

Details Spitzer Spectroscopy of Young Stellar Disks in Lynds 1228 Spitzer Spectroscopy of Young Stellar Disks in Lynds 1228

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sptz.prop20382p&link_type=abstract

Spitzer Proposal ID #20382

Computer Science

Scientific paper

Using the MIPS and IRAC instruments on the Spitzer Space Telescope, we have investigated two aggregates of 14 bright young stellar objects in the Lynds 1228 cloud in Cepheus. The spectral energy distributions (SEDs) encompass both infrared (IR) Class II and Class III types, and at least one object has no excess at wavelengths shorter than 24 microns. The SEDs of these sources illustrate that there can be a diversity of disk evolutionary states within coeval stellar aggregates. We propose to further characterize these young stellar disks using the Spitzer Space Telescope Infra-Red Spectrograph (IRS). With these observations, we will obtain detailed knowledge of SED gaps, look for evidence of crystalline silicates indicating disk thermal evolution, and use atomic and molecular lines to evaluate shocked and quiescent gas in these systems.

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