SIMBAD references

2006ApJS..165..568F - Astrophys. J., Suppl. Ser., 165, 568-605 (2006/August-0)

A survey and analysis of Spitzer infrared spectrograph spectra of T Tauri stars in Taurus.

FURLAN E., HARTMANN L., CALVET N., D'ALESSIO P., FRANCO-HERNANDEZ R., FORREST W.J., WATSON D.M., UCHIDA K.I., SARGENT B., GREEN J.D., KELLER L.D. and HERTER T.L.

Abstract (from CDS):

We present mid-infrared spectra of T Tauri stars in the Taurus star-forming region obtained with the Spitzer Infrared Spectrograph (IRS). For the first time, the 5-36 µm spectra of a large sample of T Tauri stars belonging to the same star-forming region is studied, revealing details of the mid-infrared excess due to dust in circumstellar disks. We analyze common features and differences in the mid-IR spectra based on disk structure, dust grain properties, and the presence of companions. Our analysis encompasses spectral energy distributions from the optical to the far-infrared, a morphological sequence based on the IRS spectra, and spectral indices in IRS wave bands representative of continuum emission. By comparing the observed spectra to a grid of accretion disk models, we infer some basic disk properties for our sample of T Tauri stars and find additional evidence for dust settling.

Abstract Copyright:

Journal keyword(s): Stars: Circumstellar Matter - Infrared: Stars - Stars: Planetary Systems: Protoplanetary Disks - Stars: Pre-Main-Sequence

Simbad objects: 124

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2019.10.21-06:10:50

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