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26 April 2024 |
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M-type Vega-like stars | | Inseok Song
; A. Weinberger
; E. Becklin
; B. Zuckerman
; C. Chen
; | | Date: |
16 Apr 2002 | | Subject: | astro-ph | | Abstract: | We carried out a search for M-type Vega-like stars by correlating the IRAS Faint Source Catalog with Hipparcos selected M-type stars. Three stars with apparent IRAS 25mu excess emission are shown instead to be non-IR-excess stars from ground-based 11.7 and 17.9mu photometry. Two stars previously suggested to have Vega-like mid-IR excess are also shown to be non-excess stars. These results imply that other suggested mid-IR excess stars in the literature may also be false excess stars. Detection threshold bias is apparently responsible for these bogus IR excesses. Sixty micron excess emission from a previously known M-type Vega-like star (GJ 803) is identified again. | | Source: | arXiv, astro-ph/0204255 | | Services: | Forum | Review | PDF | Favorites | |
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