The structure of the β leonis debris disk

Nathan D. Stock, Kate Y L Su, Wilson Liu, Phil M. Hinz, George H. Rieke, Massimo Marengo, Karl R. Stapelfeldt, Dean C. Hines, David E Trilling

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1238-1255
Number of pages18
JournalAstrophysical Journal
Volume724
Issue number2
DOIs
StatePublished - Dec 1 2010

Fingerprint

debris
interferometry
interferometer
color
temperature
binary stars
spectroscopy
photometry
interferometers
telescopes
stars
radii
rings
material

Keywords

  • Circumstellar matter
  • Infrared: stars
  • Planetary systems
  • Stars: individual (β Leo, o Leo)
  • Techniques: interferometric

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Stock, N. D., Su, K. Y. L., Liu, W., Hinz, P. M., Rieke, G. H., Marengo, M., ... Trilling, D. E. (2010). The structure of the β leonis debris disk. Astrophysical Journal, 724(2), 1238-1255. https://doi.org/10.1088/0004-637X/724/2/1238

The structure of the β leonis debris disk. / Stock, Nathan D.; Su, Kate Y L; Liu, Wilson; Hinz, Phil M.; Rieke, George H.; Marengo, Massimo; Stapelfeldt, Karl R.; Hines, Dean C.; Trilling, David E.

In: Astrophysical Journal, Vol. 724, No. 2, 01.12.2010, p. 1238-1255.

Research output: Contribution to journalArticle

Stock, ND, Su, KYL, Liu, W, Hinz, PM, Rieke, GH, Marengo, M, Stapelfeldt, KR, Hines, DC & Trilling, DE 2010, 'The structure of the β leonis debris disk', Astrophysical Journal, vol. 724, no. 2, pp. 1238-1255. https://doi.org/10.1088/0004-637X/724/2/1238
Stock ND, Su KYL, Liu W, Hinz PM, Rieke GH, Marengo M et al. The structure of the β leonis debris disk. Astrophysical Journal. 2010 Dec 1;724(2):1238-1255. https://doi.org/10.1088/0004-637X/724/2/1238
Stock, Nathan D. ; Su, Kate Y L ; Liu, Wilson ; Hinz, Phil M. ; Rieke, George H. ; Marengo, Massimo ; Stapelfeldt, Karl R. ; Hines, Dean C. ; Trilling, David E. / The structure of the β leonis debris disk. In: Astrophysical Journal. 2010 ; Vol. 724, No. 2. pp. 1238-1255.
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