Fickle YSOs: A Spitzer Variability Study of the Young Cluster IC 348

Details Fickle YSOs: A Spitzer Variability Study of the Young Cluster IC 348 Fickle YSOs: A Spitzer Variability Study of the Young Cluster IC 348

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21542933m&link_type=abstract

American Astronomical Society, AAS Meeting #215, #429.33; Bulletin of the American Astronomical Society, Vol. 42, p.355

Astronomy and Astrophysics

Astronomy

Scientific paper

We present results of a monitoring campaign of the young stellar cluster IC 348 with the Spitzer Space Telescope. Our data are providing some of the first robust measurements of mid-infrared variability of young stellar objects (YSOs). Variability is observed at all measurable wavelengths (from 3.6 to 70 microns) at a wide range of timescales (from days to years) across the full range of YSO evolutionary stages. Protostars and transitional disks exhibit the most spectacular time-dependent behavior, both in terms of amplitude and wavelength dependence. Our results indicate that mid-IR variability can provide an important tool for diagnosing the structure of circumstellar material, especially in the inner disk.

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