Far-infrared properties of M dwarfs

Thomas N. Gautier, G. H. Rieke, John Stansberry, Geoffrey C. Bryden, Karl R. Stapelfeldt, Michael W. Werner, Charles A. Beichman, Christine Chen, Kate Su, David E Trilling, Brian M. Patten, Thomas L. Roellig

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

We report the mid- and far-infrared properties of nearby M dwarfs. Spitzer MIPS measurements were obtained for a sample of 62 stars at 24 μm, with subsamples of 41 and 20 stars observed at 70 and 160 μm, respectively. We compare the results with current models of M star photospheres and look for indications of circumstellar dust in the form of significant deviations of K- [24 μm] colors and 70 μm/24 μm flux ratios from the average M star values. At 24 μm, all 62 of the targets were detected; 70 μm detections were achieved for 20 targets in the subsample observed, and no detections were seen in the 160 μm subsample. No clear far-infrared excesses were detected in our sample. The average far-infrared excess relative to the photospheric emission of the M stars is at least 4 times smaller than the similar average for a sample of solar-type stars. However, this limit allows the average fractional infrared luminosity in the M-star sample to be similar to that for more massive stars. We have also set low limits (10-4 to 10-9 M⊕ depending on location) for the maximum mass of dust possible around our stars.

Original languageEnglish (US)
Pages (from-to)527-536
Number of pages10
JournalAstrophysical Journal
Volume667
Issue number1 I
DOIs
StatePublished - 2007
Externally publishedYes

Fingerprint

M stars
dust
stars
photosphere
massive stars
indication
luminosity
deviation
color
detection

Keywords

  • Infrared: stars
  • Planetary systems
  • Stars: fundamental parameters (colors)
  • Stars: late-type

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Gautier, T. N., Rieke, G. H., Stansberry, J., Bryden, G. C., Stapelfeldt, K. R., Werner, M. W., ... Roellig, T. L. (2007). Far-infrared properties of M dwarfs. Astrophysical Journal, 667(1 I), 527-536. https://doi.org/10.1086/520667

Far-infrared properties of M dwarfs. / Gautier, Thomas N.; Rieke, G. H.; Stansberry, John; Bryden, Geoffrey C.; Stapelfeldt, Karl R.; Werner, Michael W.; Beichman, Charles A.; Chen, Christine; Su, Kate; Trilling, David E; Patten, Brian M.; Roellig, Thomas L.

In: Astrophysical Journal, Vol. 667, No. 1 I, 2007, p. 527-536.

Research output: Contribution to journalArticle

Gautier, TN, Rieke, GH, Stansberry, J, Bryden, GC, Stapelfeldt, KR, Werner, MW, Beichman, CA, Chen, C, Su, K, Trilling, DE, Patten, BM & Roellig, TL 2007, 'Far-infrared properties of M dwarfs', Astrophysical Journal, vol. 667, no. 1 I, pp. 527-536. https://doi.org/10.1086/520667
Gautier TN, Rieke GH, Stansberry J, Bryden GC, Stapelfeldt KR, Werner MW et al. Far-infrared properties of M dwarfs. Astrophysical Journal. 2007;667(1 I):527-536. https://doi.org/10.1086/520667
Gautier, Thomas N. ; Rieke, G. H. ; Stansberry, John ; Bryden, Geoffrey C. ; Stapelfeldt, Karl R. ; Werner, Michael W. ; Beichman, Charles A. ; Chen, Christine ; Su, Kate ; Trilling, David E ; Patten, Brian M. ; Roellig, Thomas L. / Far-infrared properties of M dwarfs. In: Astrophysical Journal. 2007 ; Vol. 667, No. 1 I. pp. 527-536.
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