| | |
| | |
Stat |
Members: 3645 Articles: 2'504'928 Articles rated: 2609
26 April 2024 |
|
| | | |
|
Article overview
| |
|
The near-infrared size-luminosity relations for Herbig Ae/Be disks | J.D. Monnier
; R.Millan-Gabet
; R.Billmeier
; R.Akeson
; D.Wallace
; J.-P.Berger
; N.Calvet
; P.D’Alessio
; W.Danchi
; L.Hartmann
; L.Hillenbrand
; M.Kuchner
; J.Rajagopal
; W.Traub
; P.Tuthill
; A.Boden
; A.Booth
; M.Colavita
; J.Gathright
; M.Hrynevych
; D.Le Mignant
; R.Ligon
; C.Neyman
; M.Swain
; R.Thompson
; G.Vasisht
; P.Wizinowich
; C.Beichman
; J.Beletic
; M.Creech-Eakman
; C.Koresko
; A.Sargent
; M.Shao
; G.van Belle (Michigan MSC NASA-GSFC LAOG CfA UNAM Caltech Princeton Sydney JPL
; | Date: |
12 Feb 2005 | Journal: | Astrophys.J. 624 (2005) 832-840 | Subject: | astro-ph | Affiliation: | 10), M.Colavita (10), J.Gathright (11), M.Hrynevych (11), D.Le Mignant (11), R.Ligon (10), C.Neyman (11), M.Swain (10), R.Thompson , G.Vasisht (10), P.Wizinowich (11), C.Beichman , J.Beletic (11), M.Creech-Eakman (10), C.Koresko , A.Sargent , M.Shao ( | Abstract: | We report the results of a sensitive K-band survey of Herbig Ae/Be disk sizes using the 85-m baseline Keck Interferometer. Targets were chosen to span the maximum range of stellar properties to probe the disk size dependence on luminosity and effective temperature. For most targets, the measured near-infrared sizes (ranging from 0.2 to 4 AU) support a simple disk model possessing a central optically-thin (dust-free) cavity, ringed by hot dust emitting at the expected sublimation temperatures (T_sub~1000-1500K). Furthermore, we find a tight correlation of disk size with source luminosity R propto L^(1/2) for Ae and late Be systems (valid over more than 2 decades in luminosity), confirming earlier suggestions based on lower-quality data. Interestingly, the inferred dust-free inner cavities of the highest luminosity sources (Herbig B0-B3 stars) are under-sized compared to predictions of the optically-thin cavity model, likely due to optically-thick gas within the inner AU. | Source: | arXiv, astro-ph/0502252 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |