The GAPS Programme with HARPS-N at TNG VIII: Observations of the Rossiter-McLaughlin effect and characterisation of the transiting planetary systems HAT-P-36 and WASP-11/HAT-P-10. Mancini, L.; Esposito, M.; Covino, E.; Raia, G.; Southworth, J.; Tregloan-Reed, J.; Biazzo, K.; Bonomo, A.; Desidera, S.; Lanza, A. F.; Maciejewski, G.; Poretti, E.; Sozzetti, A.; Borsa, F.; Bruni, I.; Ciceri, S.; Claudi, R.; Cosentino, R.; Gratton, R.; Fiorenzano, A. F. M.; Lodato, G.; Lorenzi, V.; Marzari, F.; Murabito, S.; Affer, L.; Bignamini, A.; Bedin, L. R.; Boccato, C.; Damasso, M.; Henning, T.; Maggio, A.; Micela, G.; Molinari, E.; Pagano, I.; Piotto, G.; Rainer, M.; Scandariato, G.; Smareglia, R.; and Sanchez, R. Z. arXiv:1503.01787 [astro-ph], March, 2015. arXiv: 1503.01787 bibtex: Mancini2015
The GAPS Programme with HARPS-N at TNG VIII: Observations of the Rossiter-McLaughlin effect and characterisation of the transiting planetary systems HAT-P-36 and WASP-11/HAT-P-10 [link]Paper  abstract   bibtex   
We determine the true and the projected obliquity of HAT-P-36 and WASP-11/HAT-P-10 systems, respectively, which are both composed of a relatively cool star and a hot-Jupiter planet. Thanks to the high-resolution spectrograph HARPS-N, we observed the Rossiter-McLaughlin effect for both the systems by acquiring precise radial-velocity measurements during planetary transit events. We also present photometric observations comprising six light curves covering five transit events, obtained using three medium-class telescopes and the telescope-defocussing technique. One transit of WASP-11/HAT-P-10 was followed contemporaneously from two observatories. The three transit light curves of HAT-P-36b show anomalies attributable to starspot complexes on the surface of the parent star, in agreement with the analysis of its spectra that indicate a moderate activity. By analysing the complete HATNet data set of HAT-P-36, we estimated the stellar rotation period by detecting a periodic photometric modulation in the light curve caused by star spots, obtaining Prot=15.3 days, which implies that the inclination of the stellar rotational axis with respect to the line of sight is 65 degree. We used the new spectroscopic and photometric data to revise the main physical parameters and measure the sky-projected misalignment angle of the two systems. We found \textbackslashlambda=-14 degree for HAT-P-36 and \textbackslashlambda=7 degree for WASP-11/HAT-P-10, indicating in both cases a good spin-orbit alignment. In the case of HAT-P-36, we also measured its real obliquity, which resulted to be 25 degrees.
@article{mancini_gaps_2015,
	title = {The {GAPS} {Programme} with {HARPS}-{N} at {TNG} {VIII}: {Observations} of the {Rossiter}-{McLaughlin} effect and characterisation of the transiting planetary systems {HAT}-{P}-36 and {WASP}-11/{HAT}-{P}-10},
	shorttitle = {The {GAPS} {Programme} with {HARPS}-{N} at {TNG} {VIII}},
	url = {http://arxiv.org/abs/1503.01787},
	abstract = {We determine the true and the projected obliquity of HAT-P-36 and WASP-11/HAT-P-10 systems, respectively, which are both composed of a relatively cool star and a hot-Jupiter planet. Thanks to the high-resolution spectrograph HARPS-N, we observed the Rossiter-McLaughlin effect for both the systems by acquiring precise radial-velocity measurements during planetary transit events. We also present photometric observations comprising six light curves covering five transit events, obtained using three medium-class telescopes and the telescope-defocussing technique. One transit of WASP-11/HAT-P-10 was followed contemporaneously from two observatories. The three transit light curves of HAT-P-36b show anomalies attributable to starspot complexes on the surface of the parent star, in agreement with the analysis of its spectra that indicate a moderate activity. By analysing the complete HATNet data set of HAT-P-36, we estimated the stellar rotation period by detecting a periodic photometric modulation in the light curve caused by star spots, obtaining Prot=15.3 days, which implies that the inclination of the stellar rotational axis with respect to the line of sight is 65 degree. We used the new spectroscopic and photometric data to revise the main physical parameters and measure the sky-projected misalignment angle of the two systems. We found {\textbackslash}lambda=-14 degree for HAT-P-36 and {\textbackslash}lambda=7 degree for WASP-11/HAT-P-10, indicating in both cases a good spin-orbit alignment. In the case of HAT-P-36, we also measured its real obliquity, which resulted to be 25 degrees.},
	urldate = {2015-03-09TZ},
	journal = {arXiv:1503.01787 [astro-ph]},
	author = {Mancini, L. and Esposito, M. and Covino, E. and Raia, G. and Southworth, J. and Tregloan-Reed, J. and Biazzo, K. and Bonomo, A. and Desidera, S. and Lanza, A. F. and Maciejewski, G. and Poretti, E. and Sozzetti, A. and Borsa, F. and Bruni, I. and Ciceri, S. and Claudi, R. and Cosentino, R. and Gratton, R. and Fiorenzano, A. F. Martinez and Lodato, G. and Lorenzi, V. and Marzari, F. and Murabito, S. and Affer, L. and Bignamini, A. and Bedin, L. R. and Boccato, C. and Damasso, M. and Henning, Th and Maggio, A. and Micela, G. and Molinari, E. and Pagano, I. and Piotto, G. and Rainer, M. and Scandariato, G. and Smareglia, R. and Sanchez, R. Zanmar},
	month = mar,
	year = {2015},
	note = {arXiv: 1503.01787 
bibtex: Mancini2015},
	keywords = {Astrophysics - Earth and Planetary Astrophysics}
}
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