A GLIMPSE into the Nature of Galactic Mid-IR Excesses

We investigate the nature of the mid-IR excess for 31 intermediate-mass stars that exhibit an 8 micron excess in either the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire or the Mid-Course Space Experiment using high resolution optical spectra to identify stars surrounded by warm circumste...

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Veröffentlicht in:	arXiv.org 2008-07
Hauptverfasser:	Uzpen, B, Kobulnicky, H A, Semler, D R, Bensby, T, Thom, C
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Accretion disks Astronomical models Cosmic dust Emission Fluxes Infrared astronomy Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics Physics - Earth and Planetary Astrophysics Physics - High Energy Astrophysical Phenomena Physics - Instrumentation and Methods for Astrophysics Physics - Solar and Stellar Astrophysics Pre-main sequence stars Sky surveys (astronomy) Stellar age Stellar evolution
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