YSO variability in Massive Star-forming Regions

Details YSO variability in Massive Star-forming Regions YSO variability in Massive Star-forming Regions

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sptz.prop80088h&link_type=abstract

Spitzer Proposal ID #80088

Computer Science

Scientific paper

We propose to obtain multi-epoch observations of two fields in the Cygnus-X massive star-forming complex to determine the variability characteristics of intermediate- to high-mass young stellar objects (YSOs). This program is complementary to the YSOVAR exploration science program which obtained lightcurves for a sample of low- mass YSOs in nearby star forming regions. We propose monitoring two fields in Cygnus-X, which in total contain at least 140 Class I and 900 Class II YSOs. This will provide a significant sample of objects and allow us to constrain models of variability in young stars, particularly in the phase of evolution where they have massive disks and circumstellar envelopes and are accreting mass at a rapid rate.

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