SIMBAD references

2010ApJ...724.1238S - Astrophys. J., 724, 1238-1255 (2010/December-1)

The structure of the β Leonis debris disk.

STOCK N.D., SU K.Y.L., LIU W., HINZ P.M., RIEKE G.H., MARENGO M., STAPELFELDT K.R., HINES D.C. and TRILLING D.E.

Abstract (from CDS):

We combine nulling interferometry at 10 µm using the MMT and Keck Telescopes with spectroscopy, imaging, and photometry from 3 to 100 µm using Spitzer to study the debris disk around β Leo over a broad range of spatial scales, corresponding to radii of 0.1 to ∼100 AU. We have also measured the close binary star o Leo with both Keck and MMT interferometers to verify our procedures with these instruments. The β Leo debris system has a complex structure: (1) relatively little material within 1 AU; (2) an inner component with a color temperature of ∼600 K, fitted by a dusty ring from about 2-3 AU; and (3) a second component with a color temperature of ∼120 K fitted by a broad dusty emission zone extending from about ∼5 AU to ∼55 AU. Unlike many other A-type stars with debris disks, β Leo lacks a dominant outer belt near 100 AU.

Abstract Copyright:

Journal keyword(s): circumstellar matter - infrared: stars - planetary systems - stars: individual (β Leo, o Leo) - techniques: interferometric

Simbad objects: 14

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2019.10.15-12:14:16

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