Disk evolution in Cep OB2: Results from the Spitzer space telescope

Aurora Sicilia-Aguilar (Lead / Corresponding author), Lee Hartmann (Lead / Corresponding author), Nuria Calvet, S. T. Megeath, James Muzerolle, Lori Allen, Paolo D'Alessio, Bruno Merin, John Stauffer, Erick Young, Charles Lada

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Abstract

We present the results of an infrared imaging survey of two clusters in the Cep OB2 Association, Tr 37 and NGC 7160, using the IRAC and MIPS instruments on board the Spitzer Space Telescope. Our observations cover the wavelength range from 3.6 to 24 mu m, allowing us to detect disk emission over a typical range of radii similar to 0.1 to similar to 20AU from the central star. In Tr 37, with an age of about 4 Myr, about 48% of the low- mass stars exhibit detectable disk emission in the IRAC bands. Roughly 10% of the stars with disks may be "transition'' objects, with essentially photospheric fluxes at wavelengths
Original languageEnglish
Pages (from-to)897-919
Number of pages23
JournalAstrophysical Journal
Volume638
Issue number2
DOIs
Publication statusPublished - 2006

Keywords

  • accretion, accretion disks planetary systems : protoplanetary disks stars : pre-main-sequence T-TAURI STARS MAIN-SEQUENCE STARS INTERMEDIATE-MASS STARS ORION-NEBULA CLUSTER CIRCUMSTELLAR DISKS HYDRAE ASSOCIATION PLANET FORMATION YOUNG CLUSTER DEBRIS DISKS CEPHEUS OB2

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    Sicilia-Aguilar, A., Hartmann, L., Calvet, N., Megeath, S. T., Muzerolle, J., Allen, L., D'Alessio, P., Merin, B., Stauffer, J., Young, E., & Lada, C. (2006). Disk evolution in Cep OB2: Results from the Spitzer space telescope. Astrophysical Journal, 638(2), 897-919. https://doi.org/10.1086/498085