The Library
Lucky imaging of transiting planet host stars with LuckyCam
Tools
Tools
Tools
Faedi, Francesca, Staley, T., Gómez Maqueo Chew, Y., Pollacco, Don, Dhital, S., Barros, S. C. C., Skillen, I., Hebb, L., Mackay, C. and Watson, C. A. (2013) Lucky imaging of transiting planet host stars with LuckyCam. Monthly Notices of the Royal Astronomical Society, Volume 433 (Number 3). pp. 2097-2106. doi:10.1093/mnras/stt885 ISSN 0035-8711.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1093/mnras/stt885
Abstract
We obtained high-resolution, high-contrast optical imaging in the Sloan Digital Sky Survey i(') band with the LuckyCam camera mounted on the 2.56 m Nordic Optical Telescope, to search for faint stellar companions to 16 stars harbouring transiting exoplanets. The Lucky imaging technique uses very short exposures to obtain near diffraction-limited images yielding sub-arcsecond sensitivity, allowing us to search for faint stellar companions within the seeing disc of the primary planet host. Here, we report the detection of two candidate stellar companions to the planet host TrES-1 at separations < 6.5 arcsec and we confirm stellar companions to CoRoT-2, CoRoT-3, TrES-2, TrES-4 and HAT-P-7 already known in the literature. We do not confirm the candidate companions to HAT-P-8 found via Lucky imaging by Bergfors et al., however, most probably because HAT-P-8 was observed in poor seeing conditions. Our detection sensitivity limits allow us to place constraints on the spectral types and masses of the putative bound companions to the planet host stars in our sample. If bound, the stellar companions identified in this work would provide stringent observational constraints to models of planet formation and evolution. In addition, these companions could affect the derived physical properties of the exoplanets in these systems.
| Item Type: | Journal Article | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||
| Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | ||||||||||
| Publisher: | Oxford University Press | ||||||||||
| ISSN: | 0035-8711 | ||||||||||
| Official Date: | 11 August 2013 | ||||||||||
| Dates: |
|
||||||||||
| Volume: | Volume 433 | ||||||||||
| Number: | Number 3 | ||||||||||
| Page Range: | pp. 2097-2106 | ||||||||||
| DOI: | 10.1093/mnras/stt885 | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Access rights to Published version: | Open Access (Creative Commons) |
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
