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Related papers: Revisiting parameters for the WASP-1 planetary sys…

200 papers

We report nine new transit epochs of the extrasolar planet, observed in the Bessell-I band with SOAR at the Cerro Pachon Observatory and with the SMARTS 1-m Telescope at CTIO, between August 2008 and October 2009. The new transits have been…

Earth and Planetary Astrophysics · Physics 2015-06-03 S. Hoyer , P. Rojo , M. Lopez-Morales

We present our analysis of the K2 short-cadence data of two previously known hot Jupiter exoplanets: WASP-55b and WASP-75b. The high precision of the K2 lightcurves enabled us to search for transit timing and duration variations, rotational…

Earth and Planetary Astrophysics · Physics 2018-02-07 B. J. M. Clark , D. R. Anderson , C. Hellier , O. D. Turner , T. Močnik

We obtained long-slit optical spectroscopy of one transit of WASP-48b with the Optical System for Imaging and low-Intermediate-Resolution Integrated Spectroscopy (OSIRIS) spectrograph at the 10.4 m Gran Telescopio Canarias (GTC). We…

Earth and Planetary Astrophysics · Physics 2017-09-20 F. Murgas , E. Pallé , H. Parviainen , G. Chen , L. Nortmann , G. Nowak , A. Cabrera-Lavers , N. Iro

We report Gemini-South GMOS observations of the exoplanet system WASP-29 during primary transit as a test case for differential spectrophotometry. We use the multi-object spectrograph to observe the target star and a comparison star…

Earth and Planetary Astrophysics · Physics 2015-06-11 N. P. Gibson , S. Aigrain , J. K. Barstow , T. M. Evans , L. N. Fletcher , P. G. J. Irwin

Transiting extrasolar planets constitute only a small fraction of the range of stellar systems found to display periodic, shallow dimmings in wide-field surveys employing small-aperture camera arrays. Here we present an efficient selection…

Motivated by the previously reported high orbital decay rate of the planet WASP-43b, eight newly transit light curves are obtained and presented. Together with other data in literature, we perform a self-consistent timing analysis with data…

Earth and Planetary Astrophysics · Physics 2016-01-13 Ing-Guey Jiang , Chien-Yo Lai , Alexander Savushkin , David Mkrtichian , Kirill Antonyuk , Evgeny Griv , He-Feng Hsieh , Li-Chin Yeh

We report the discovery from the WASP survey of two exoplanetary systems, each consisting of a Jupiter-sized planet transiting an 11th magnitude (V) main-sequence star. WASP-104b orbits its star in 1.75 d, whereas WASP-106b has the…

Transits in the planetary system WASP-4 were recently found to occur 80s earlier than expected in observations from the TESS satellite. We present 22 new times of mid-transit that confirm the existence of transit timing variations, and are…

Three optical telescopes located at the San Pedro M\'artir National Observatory were used for the first time to obtain multi-filter defocused photometry of the transiting extrasolar planets WASP-39b and WASP-43b. We observed WASP-39b with…

Earth and Planetary Astrophysics · Physics 2015-06-23 D. Ricci , F. G. Ramón-Fox , C. Ayala-Loera , R. Michel , S. Navarro-Meza , L. Fox-Machado , M. Reyes-Ruiz , S. Brown Sevilla , S. Curiel

In this study, we present a comprehensive analysis of transit timing variations (TTVs) in the ultra-short-period gas giant WASP-19b, which orbits a G-type main-sequence star. Our analysis is based on a dataset comprising 204 transit light…

Earth and Planetary Astrophysics · Physics 2025-06-23 Shraddha Biswas , Ing-Guey Jiang , Li-Chin Yeh , Hsin-Min Liu , Kaviya Parthasarathy , Devesh P. Sariya , D. Bisht , Mohit Singh Bisht , A. Raj

WASP-12b is a transiting hot Jupiter on a 1.09-day orbit around a late-F star. Since the planet's discovery in 2008, the time interval between transits has been decreasing by $29\pm 2$ msec year$^{-1}$. This is a possible sign of orbital…

We present photometry of WASP-10 during the transit of its short-period Jovian planet. We employed the novel PSF-shaping capabilities the OPTIC camera mounted on the UH 2.2m telescope to achieve a photometric precision of 4.7e-4 per 1.3 min…

Astrophysics · Physics 2009-11-13 John A. Johnson , Joshua N. Winn , Nicole E. Cabrera , Joshua A. Carter

We present seven light curves of the exoplanet system HAT-P-3, taken as part of a transit timing program using the RISE instrument on the Liverpool Telescope. The light curves are analysed using a Markov-Chain Monte-Carlo algorithm to…

Earth and Planetary Astrophysics · Physics 2015-05-14 N. P. Gibson , D. Pollacco , S. Barros , C. Benn , D. Christian , M. Hrudková , Y. C. Joshi , F. P. Keenan , E. K. Simpson , I. Skillen , I. A. Steele , I. Todd

WASP-80b is a warm Jupiter transiting a bright late-K/early-M dwarf, providing a good opportunity to extend the atmospheric study of hot Jupiters toward the lower temperature regime. We report multi-band, multi-epoch transit observations of…

We report the discovery of two additional planetary companions to WASP-41 and WASP-47. WASP-41 c is a planet of minimum mass 3.18 $\pm$ 0.20 M$_{\rm Jup}$ and eccentricity 0.29 $\pm$ 0.02, and it orbits in 421 $\pm$ 2 days. WASP-47 c is a…

In this work, we present a transit timing variation analysis for 20 hot Jupiter systems, which we interpret with theoretical tidal dissipation models. For the majority of the sample, we conclude that a constant orbital period model…

We report the discovery of WASP-6b, an inflated sub-Jupiter mass planet transiting every 3.3610060 +0.0000022-0.0000035 days a mildly metal-poor solar-type star of magnitude V=11.9. A combined analysis of the WASP photometry, high-precision…

We report the results of new transit observations for the three hot Jupiter-like planets HATP-36b, HATP-56b and WASP-52b respectively. Transit timing variations (TTVs) are presented for these systems based on observations that span the…

Earth and Planetary Astrophysics · Physics 2021-11-24 E. Sonbas , N. Karaman , A. Özdönmez , H. Er , K. S. Dhuga , E. Göğüş , I. Nasiroglu , M. Zejmo

We report the discovery of a low-density exoplanet transiting an 11th magnitude star in the Southern hemisphere. WASP-15b, which orbits its host star with a period P=3.7520656+-0.0000028d has a mass M_p=0.542+-0.050M_J and radius…

We present new photometric observations of WASP-15 and WASP-16, two transiting extrasolar planetary systems with measured orbital obliquities but without photometric follow-up since their discovery papers. Our new data for WASP-15 comprise…