|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Dust in the 55 Cancri planetary system | | Ray Jayawardhana
; Wayne S. Holland
; Jane S. Greaves
; William R. F. Dent
; Geoffrey W. Marcy
; Lee W. Hartmann
; Giovanni G. Fazio
; | | Date: |
15 Dec 1999 | | Subject: | astro-ph | | Affiliation: | CfA), Wayne S. Holland, Jane S. Greaves (JAC, Hawaii), William R. F. Dent (ROE), Geoffrey W. Marcy (UC Berkeley), Lee W. Hartmann, Giovanni G. Fazio (CfA | | Abstract: | The presence of debris disks around $sim$ 1-Gyr-old main sequence stars suggests that an appreciable amount of dust may persist even in mature planetary systems. Here we report the detection of dust emission from 55 Cancri, a star with one, or possibly two, planetary companions detected through radial velocity measurements. Our observations at 850$mu$m and 450$mu$m imply a dust mass of 0.0008-0.005 Earth masses, somewhat higher than that in the the Kuiper Belt of our solar system. The estimated temperature of the dust grains and a simple model fit both indicate a central disk hole of at least 10 AU in radius. Thus, the region where the planets are detected is likely to be significantly depleted of dust. Our results suggest that far-infrared and sub-millimeter observations are powerful tools for probing the outer regions of extrasolar planetary systems. | | Source: | arXiv, astro-ph/0001275 | | 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:
| |
REGISTER