Khalid Alsubai
Qatar Exoplanet Survey : Qatar-3b, Qatar-4b, and Qatar-5b
Alsubai, Khalid; Mislis, Dimitris; Tsvetanov, Zlatan I.; Latham, David W.; Bieryla, Allyson; Buchhave, Lars A.; Esquerdo, Gilbert A.; Bramich, D.M.; Pyrzas, Stylianos; Vilchez, Nicolas P.E.; Mancini, Luigi; Southworth, John; Evans, Daniel F.; Henning, Thomas; Ciceri, Simona
Authors
Dimitris Mislis
Zlatan I. Tsvetanov
David W. Latham
Allyson Bieryla
Lars A. Buchhave
Gilbert A. Esquerdo
D.M. Bramich
Stylianos Pyrzas
Nicolas P.E. Vilchez
Luigi Mancini
Dr John Taylor j.k.taylor@keele.ac.uk
Daniel F. Evans
Thomas Henning
Simona Ciceri
Abstract
We report the discovery of Qatar-3b, Qatar-4b, and Qatar-5b, three new transiting planets identified by the Qatar Exoplanet Survey. The three planets belong to the hot Jupiter family, with orbital periods of ${P}_{{\rm{Q}}3{\rm{b}}}$ = 2.50792 days, ${P}_{{\rm{Q}}4{\rm{b}}}$ = 1.80539 days, and ${P}_{{\rm{Q}}5{\rm{b}}}$ = 2.87923 days. Follow-up spectroscopic observations reveal the masses of the planets to be ${M}_{{\rm{Q}}3{\rm{b}}}$ = 4.31 ± 0.47 ${M}_{{\rm{J}}}$, ${M}_{{\rm{Q}}4{\rm{b}}}$ = 6.10 ± 0.54 ${M}_{{\rm{J}}}$, and ${M}_{{\rm{Q}}5{\rm{b}}}$ = 4.32 ± 0.18 ${M}_{{\rm{J}}}$, while model fits to the transit light curves yield radii of ${R}_{{\rm{Q}}3{\rm{b}}}$ = 1.096 ± 0.14 ${R}_{{\rm{J}}}$, ${R}_{{\rm{Q}}4{\rm{b}}}$ = 1.135 ± 0.11 ${R}_{{\rm{J}}}$, and ${R}_{{\rm{Q}}5{\rm{b}}}$ = 1.107 ± 0.064 ${R}_{{\rm{J}}}$. The host stars are low-mass main sequence stars with masses and radii M Q3 = 1.145 ± 0.064 M ?, M Q4 = 0.896 ± 0.048 M ?, M Q5 = 1.128 ± 0.056 M ? and R Q3 = 1.272 ± 0.14 R ?, R Q4 = 0.849 ± 0.063 R ?, and R Q5 = 1.076 ± 0.051 R ? for Qatar-3, 4, and 5 respectively. The V magnitudes of the three host stars are V Q3 = 12.88, V Q4 = 13.60, and V Q5 = 12.82. All three new planets can be classified as heavy hot Jupiters (M > 4 M J).
Citation
Alsubai, K., Mislis, D., Tsvetanov, Z. I., Latham, D. W., Bieryla, A., Buchhave, L. A., …Ciceri, S. (2017). Qatar Exoplanet Survey : Qatar-3b, Qatar-4b, and Qatar-5b. Astronomical Journal, 153(4), Article 200. https://doi.org/10.3847/1538-3881/aa6340
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 23, 2017 |
Online Publication Date | Apr 4, 2017 |
Publication Date | Apr 4, 2017 |
Journal | Astronomical Journal |
Print ISSN | 0004-6256 |
Publisher | American Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 153 |
Issue | 4 |
Article Number | 200 |
DOI | https://doi.org/10.3847/1538-3881/aa6340 |
Keywords | planetary systems, planets and satellites, gaseous planets |
Publisher URL | http://iopscience.iop.org/article/10.3847/1538-3881/aa6340/meta |
Files
2017AJ....153..200A.pdf
(1.7 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by-nc/4.0/
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