Quantifying the Infrared Variability of 10 Myr Old T Tauri Stars

Details Quantifying the Infrared Variability of 10 Myr Old T Tauri Stars Quantifying the Infrared Variability of 10 Myr Old T Tauri Stars

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sptz.prop80144b&link_type=abstract

Spitzer Proposal ID #80144

Physics

Scientific paper

We propose to carry out a combined Spitzer/ground-based program to study the multiwavelength variability of 10 Myr stars (age when planets are expected to have formed), with the goal of investigating temporal phenomena linked to the inner structure of circumstellar disks. Our target is the 25 Ori cluster, for which we already have with an extensive set of ancillary data. We will conduct IRAC mapping of ~0.7 sqr.deg. containing 87 members (13 with disks) twice a day during two 7-day blocks separated by 5-7 days, and a 7.2h long stare observation containing a subset of 9 members (4 with disks). We will be able to explore variability in the mid-IR on timescales ranging from minutes, day, weeks all the way up to a few years. Combined with shorter wavelength data our program will help open a new window into the physics of planet and star formation.

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