THE DISSIMILAR CHEMICAL COMPOSITION OF THE PLANET-HOSTING STARS OF THE XO-2 BINARY SYSTEM
-
Altmetric Citations
Ramírez, I; Khanal, S.; Aleo, P.; Sobotka, A.; Liu, Fan; Casagrande, Luca; Meléndez, J; Yong, David; Lambert, David L; Asplund, Martin
Description
Using high-quality spectra of the twin stars in the XO-2 binary system, we have detected significant differences in the chemical composition of their photospheres. The differences correlate strongly with the elements' dust condensation temperature. In XO-2N, volatiles are enhanced by about 0.015 dex and refractories are overabundant by up to 0.090 dex. On average, our error bar in relative abundance is 0.012 dex. We present an early metal-depletion scenario in which the formation of the gas...[Show more]
Collections | ANU Research Publications |
---|---|
Date published: | 2015 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/103198 |
Source: | Astrophysical Journal, The |
DOI: | 10.1088/0004-637X/808/1/13 |
Access Rights: | Open Access |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
01_Ram%C3%ADrez_THE_DISSIMILAR_CHEMICAL_2015.pdf | 738.39 kB | Adobe PDF |
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 19 May 2020/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator