SIMBAD references

2000ApJ...532..467L - Astrophys. J., 532, 467-473 (2000/March-3)

Interferometric observations of IRC +10011 and IRC +10420 in the mid-infrared.

LIPMAN E.A., HALE D.D.S., MONNIER J.D., TUTHILL P.G., DANCHI W.C. and TOWNES C.H.

Abstract (from CDS):

The 11 µm fringe visibilities of IRC +10011 (= CIT3) and IRC +10420 have been measured at baselines ranging from 2 to 14 m with a two-telescope interferometer. The visibility data provide one-dimensional profiles of these two stars and their immediate surroundings with higher resolution in this spectral range than is presently possible with a single-aperture telescope. Spherically symmetric radiative transfer models suggest that IRC +10011 is surrounded by a dust shell with an inner radius subtending 0".033, which falls off in density as r–1.5, slightly slower than the r–2 expected for constant dust outflow. IRC +10420 appears to have a dust shell of inner radius 0".12, the density of which drops very slowly compared with that in a constant outflow. This implies decreasing outflow or a significant emission in the past.

Abstract Copyright:

Journal keyword(s): Stars: Circumstellar Matter - Infrared: Stars - Stars: AGB and Post-AGB - stars: individual (IRC +10011, IRC +10420) - Techniques: Interferometric

Simbad objects: 5

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2020.02.20-15:40:51

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