Discovery of WASP-174b: Doppler tomography of a near-grazing transit
| Autor: | Temple, L. Y., Hellier, C., Almleaky, Y., Anderson, D. R., Bouchy, F., Brown, D. J. A., Burdanov, A., Cameron, A. Collier, Delrez, L., Gillon, M., Hall, R., Jehin, E., Lendl, M., Maxted, P. F. L., Nielsen, L. D., Pepe, F., Pollacco, D., Queloz, D., Ségransan, D., Smalley, B., Sohy, S., Thompson, S., Triaud, A. H. M. J., Turner, O. D., Udry, S., West, R. G. |
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| Rok vydání: | 2018 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1093/mnras/sty2197 |
| Popis: | We report the discovery and tomographic detection of WASP-174b, a planet with a near-grazing transit on a 4.23-d orbit around a $V$ = 11.9, F6V star with [Fe/H] = 0.09 $\pm$ 0.09. The planet is in a moderately misaligned orbit with a sky-projected spin-orbit angle of $\lambda$ = 31$^{\circ}$ $\pm$ 1$^{\circ}$. This is in agreement with the known tendency for orbits around hotter stars to be misaligned. Owing to the grazing transit the planet's radius is uncertain, with a possible range of 0.8-1.8 R$_{\rm Jup}$. The planet's mass has an upper limit of 1.3 M$_{\rm Jup}$. WASP-174 is the faintest hot-Jupiter system so far confirmed by tomographic means. Comment: 8 pages, 6 figures, accepted by MNRAS |
| Databáze: | arXiv |
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