Physical properties and transmission spectrum of the WASP-74 planetary system from multi-band photometry

L. Mancini; J. Southworth; P. Molliere; J. Tregloan-Reed; I. G. Juvan; G. Chen; P. Sarkis; I. Bruni; S. Ciceri; M. I. Andersen; V. Bozza; D. M. Bramich; M. Burgdorf; G. D'Ago; M. Dominik; D. F. Evans; R. Figuera Jaimes; L. Fossati; Th Henning; T. C. Hinse; M. Hundertmark; U. G. Jorgensen; E. Kerins; H. Korhonen; M. Kuffmeier; P. Longa; N. Peixinho; A. Popovas; M. Rabus; S. Rahvar; J. Skottfelt; C. Snodgrass; R. Tronsgaard; Y. Wang; O. Wertz

doi:10.1093/mnras/stz661

Physical properties and transmission spectrum of the WASP-74 planetary system from multi-band photometry

L. Mancini, J. Southworth, P. Molliere, J. Tregloan-Reed, I. G. Juvan, G. Chen, P. Sarkis, I. Bruni, S. Ciceri, M. I. Andersen, V. Bozza, D. M. Bramich, M. Burgdorf, G. D'Ago, M. Dominik, D. F. Evans, R. Figuera Jaimes, L. Fossati, Th Henning, T. C. HinseM. Hundertmark, U. G. Jorgensen, E. Kerins, H. Korhonen, M. Kuffmeier, P. Longa, N. Peixinho, A. Popovas, M. Rabus, S. Rahvar, J. Skottfelt, C. Snodgrass, R. Tronsgaard, Y. Wang, O. Wertz

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present broad-band photometry of eleven planetary transits of the hot Jupiter WASP-74b, using three medium-class telescopes and employing the telescope-defocussing technique. Most of the transits were monitored through I filters and one was simultaneously observed in five optical (U, g', r', i', z') and three near infrared (J, H, K) passbands, for a total of 18 light curves. We also obtained new high-resolution spectra of the host star. We used these new data to review the orbital and physical properties of the WASP-74 planetary system. We were able to better constrain the main system characteristics, measuring smaller radius and mass for both the hot Jupiter and its host star than previously reported in the literature. Joining our optical data with those taken with the HST in the near infrared, we built up an observational transmission spectrum of the planet, which suggests the presence of strong optical absorbers, as TiO and VO gases, in its atmosphere.

Original language	English
Number of pages	12
Journal	Monthly Notices of the Royal Astronomical Society
DOIs	https://doi.org/10.1093/mnras/stz661
Publication status	Published - 14 Mar 2019

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astro-ph.EP

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10.1093/mnras/stz661

1903.02800Accepted author manuscript, 2.52 MB

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Mancini, L., Southworth, J., Molliere, P., Tregloan-Reed, J., Juvan, I. G., Chen, G., Sarkis, P., Bruni, I., Ciceri, S., Andersen, M. I., Bozza, V., Bramich, D. M., Burgdorf, M., D'Ago, G., Dominik, M., Evans, D. F., Jaimes, R. F., Fossati, L., Henning, T., ... Wertz, O. (2019). Physical properties and transmission spectrum of the WASP-74 planetary system from multi-band photometry. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stz661

@article{1172bffa801b4af195b0de8245ff50f6,

title = "Physical properties and transmission spectrum of the WASP-74 planetary system from multi-band photometry",

abstract = " We present broad-band photometry of eleven planetary transits of the hot Jupiter WASP-74b, using three medium-class telescopes and employing the telescope-defocussing technique. Most of the transits were monitored through I filters and one was simultaneously observed in five optical (U, g', r', i', z') and three near infrared (J, H, K) passbands, for a total of 18 light curves. We also obtained new high-resolution spectra of the host star. We used these new data to review the orbital and physical properties of the WASP-74 planetary system. We were able to better constrain the main system characteristics, measuring smaller radius and mass for both the hot Jupiter and its host star than previously reported in the literature. Joining our optical data with those taken with the HST in the near infrared, we built up an observational transmission spectrum of the planet, which suggests the presence of strong optical absorbers, as TiO and VO gases, in its atmosphere. ",

keywords = "astro-ph.EP",

author = "L. Mancini and J. Southworth and P. Molliere and J. Tregloan-Reed and Juvan, {I. G.} and G. Chen and P. Sarkis and I. Bruni and S. Ciceri and Andersen, {M. I.} and V. Bozza and Bramich, {D. M.} and M. Burgdorf and G. D'Ago and M. Dominik and Evans, {D. F.} and Jaimes, {R. Figuera} and L. Fossati and Th Henning and Hinse, {T. C.} and M. Hundertmark and Jorgensen, {U. G.} and E. Kerins and H. Korhonen and M. Kuffmeier and P. Longa and N. Peixinho and A. Popovas and M. Rabus and S. Rahvar and J. Skottfelt and C. Snodgrass and R. Tronsgaard and Y. Wang and O. Wertz",

note = "12 pages, 9 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society",

year = "2019",

month = mar,

day = "14",

doi = "10.1093/mnras/stz661",

language = "English",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

}

Mancini, L, Southworth, J, Molliere, P, Tregloan-Reed, J, Juvan, IG, Chen, G, Sarkis, P, Bruni, I, Ciceri, S, Andersen, MI, Bozza, V, Bramich, DM, Burgdorf, M, D'Ago, G, Dominik, M, Evans, DF, Jaimes, RF, Fossati, L, Henning, T, Hinse, TC, Hundertmark, M, Jorgensen, UG, Kerins, E, Korhonen, H, Kuffmeier, M, Longa, P, Peixinho, N, Popovas, A, Rabus, M, Rahvar, S, Skottfelt, J, Snodgrass, C, Tronsgaard, R, Wang, Y & Wertz, O 2019, 'Physical properties and transmission spectrum of the WASP-74 planetary system from multi-band photometry', Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stz661

TY - JOUR

T1 - Physical properties and transmission spectrum of the WASP-74 planetary system from multi-band photometry

AU - Mancini, L.

AU - Southworth, J.

AU - Molliere, P.

AU - Tregloan-Reed, J.

AU - Juvan, I. G.

AU - Chen, G.

AU - Sarkis, P.

AU - Bruni, I.

AU - Ciceri, S.

AU - Andersen, M. I.

AU - Bozza, V.

AU - Bramich, D. M.

AU - Burgdorf, M.

AU - D'Ago, G.

AU - Dominik, M.

AU - Evans, D. F.

AU - Jaimes, R. Figuera

AU - Fossati, L.

AU - Henning, Th

AU - Hinse, T. C.

AU - Hundertmark, M.

AU - Jorgensen, U. G.

AU - Kerins, E.

AU - Korhonen, H.

AU - Kuffmeier, M.

AU - Longa, P.

AU - Peixinho, N.

AU - Popovas, A.

AU - Rabus, M.

AU - Rahvar, S.

AU - Skottfelt, J.

AU - Snodgrass, C.

AU - Tronsgaard, R.

AU - Wang, Y.

AU - Wertz, O.

N1 - 12 pages, 9 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society

PY - 2019/3/14

Y1 - 2019/3/14

N2 - We present broad-band photometry of eleven planetary transits of the hot Jupiter WASP-74b, using three medium-class telescopes and employing the telescope-defocussing technique. Most of the transits were monitored through I filters and one was simultaneously observed in five optical (U, g', r', i', z') and three near infrared (J, H, K) passbands, for a total of 18 light curves. We also obtained new high-resolution spectra of the host star. We used these new data to review the orbital and physical properties of the WASP-74 planetary system. We were able to better constrain the main system characteristics, measuring smaller radius and mass for both the hot Jupiter and its host star than previously reported in the literature. Joining our optical data with those taken with the HST in the near infrared, we built up an observational transmission spectrum of the planet, which suggests the presence of strong optical absorbers, as TiO and VO gases, in its atmosphere.

AB - We present broad-band photometry of eleven planetary transits of the hot Jupiter WASP-74b, using three medium-class telescopes and employing the telescope-defocussing technique. Most of the transits were monitored through I filters and one was simultaneously observed in five optical (U, g', r', i', z') and three near infrared (J, H, K) passbands, for a total of 18 light curves. We also obtained new high-resolution spectra of the host star. We used these new data to review the orbital and physical properties of the WASP-74 planetary system. We were able to better constrain the main system characteristics, measuring smaller radius and mass for both the hot Jupiter and its host star than previously reported in the literature. Joining our optical data with those taken with the HST in the near infrared, we built up an observational transmission spectrum of the planet, which suggests the presence of strong optical absorbers, as TiO and VO gases, in its atmosphere.

KW - astro-ph.EP

U2 - 10.1093/mnras/stz661

DO - 10.1093/mnras/stz661

M3 - Article

SN - 0035-8711

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

Physical properties and transmission spectrum of the WASP-74 planetary system from multi-band photometry

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