Remember Me
Or use your Academic/Social account:


Or use your Academic/Social account:


You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.


Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message


Verify Password:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Southworth, John; Tregloan-Reed, J.; Andersen, M. I.; Novati, S. Calchi; Ciceri, S.; Colque, J. P.; D'Ago, G.; Dominik, M.; Evans, D.; Gu, S. -H.; Herrera-Cruces, A.; Hinse, T. C.; Jorgensen, U. G.; Juncher, D.; Kuffmeier, M.; Mancini, L.; Peixinho, N.; Popovas, A.; Rabus, M.; Skottfelt, J.; Tronsgaard, R.; Unda-Sanzana, E.; Wang, X. -B.; Wertz, O.; Alsubai, K. A.; Andersen, J. M.; Bozza, V.; Bramich, D. M.; Burgdorf, M.; Damerdji, Y. ... view all 50 authors View less authors (2015)
Publisher: Oxford University Press
Languages: English
Types: Article
Subjects: Astrophysics - Solar and Stellar Astrophysics, QC Physics, individual: WASP-22 [stars], WASP-41, QB, QC, Astrophysics - Earth and Planetary Astrophysics, planetary systems, WASP-55, WASP-42, QB Astronomy, NDAS, fundamental parameters [stars]
J So acknowledges financial support from the Leverhulme Trust in the form of a Philip Leverhulme Prize. JTR acknowledges financial support from ORAU (Oak Ridge Associated Universities) and NASA in the form of a NASA Post-Doctoral Programme (NPP) Fellowship. DFE is funded by the UK's Science and Technology Facilities Council. EU-S acknowledges the support of CONICYT QUIMAL 130004 project. Funding for the Stellar Astrophysics Centre in Aarhus is provided by The Danish National Research Foundation (grant agreement no. DNRF106). The research is supported by the ASTERISK project (ASTERoseismic Investigations with SONG and Kepler) funded by the European Research Council (grant agreement no. 267864). TCH acknowledges KASI research grants #2012-1-410-02, #2013-9-400-00, #2014-1-400-06 and #2015-1-850-04. NP acknowledges funding by the Gemini-Conicyt Fund, allocated to project no. 32120036. GD acknowledges Regione Campania for support from POR-FSE Campania 2014–2020. YD, AE, OW and J Su acknowledge support from the Communauté française de Belgique - Actions de recherche concertées - Académie Wallonie-Europe. We present 13 high-precision and four additional light curves of four bright southern-hemisphere transiting planetary systems: WASP-22, WASP-41, WASP-42 and WASP-55. In the cases of WASP-42 and WASP-55, these are the first follow-up observations since their discovery papers. We present refined measurements of the physical properties and orbital ephemerides of all four systems. No indications of transit timing variations were seen. All four planets have radii inflated above those expected from theoretical models of gas-giant planets; WASP-55 b is the most discrepant with a mass of 0.63 MJup and a radius of 1.34 RJup. WASP-41 shows brightness anomalies during transit due to the planet occulting spots on the stellar surface. Two anomalies observed 3.1 d apart are very likely due to the same spot. We measure its change in position and determine a rotation period for the host star of 18.6 ± 1.5 d, in good agreement with a published measurement from spot-induced brightness modulation, and a sky-projected orbital obliquity of λ = 6 ± 11°. We conclude with a compilation of obliquity measurements from spot-tracking analyses and a discussion of this technique in the study of the orbital configurations of hot Jupiters. Publisher PDF Peer reviewed
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • Albrecht S. et al., 2011, ApJ, 738, 50
    • Anderson D. R. et al., 2011, A&A, 534, A16
    • Baraffe I., Chabrier G., Barman T., 2008, A&A, 482, 315
    • Barros S. C. C., Boue´ G., Gibson N. P., Pollacco D. L., Santerne A., Keenan F. P., Skillen I., Street R. A., 2013, MNRAS, 430, 3032
    • Bodenheimer P., Laughlin G., Lin D. N. C., 2003, ApJ, 592, 555 Carter J. A., Yee J. C., Eastman J., Gaudi B. S., Winn J. N., 2008, ApJ, 689, 499
    • Claret A., 2004, A&A, 424, 919
    • Crida A., Batygin K., 2014, A&A, 567, A42
    • Dawson R. I., 2014, ApJ, 790, L31
    • Demarque P., Woo J.-H., Kim Y.-C., Yi S. K., 2004, ApJS, 155, 667 De´sert J.-M. et al., 2011, ApJS, 197, 14
    • Dotter A., Chaboyer B., Jevremovic´ D., Kostov V., Baron E., Ferguson J. W., 2008, ApJS, 178, 89
    • Eastman J., Siverd R., Gaudi B. S., 2010, PASP, 122, 935
    • Eaton N., Draper P. W., Allen A., 1999, Starlink User Note 45.9, available at: http://www.starlink.rl.ac.uk/docs/sun45.htx/sun45.html
    • Esposito M. et al., 2014, A&A, 564, L13
    • Evans D. F. et al., 2015, A&A, submitted
    • Fortney J. J., Marley M. S., Barnes J. W., 2007, ApJ, 659, 1661 Gibson N. P. et al., 2009, ApJ, 700, 1078
    • Hellier C. et al., 2012, MNRAS, 426, 739
    • Howell S. B. et al., 2014, PASP, 126, 398
    • Ioannidis P., Huber K. F., Schmitt J. H. M. M., 2016, A&A, 558, A72 Jehin E. et al., 2011, The Messenger, 145, 2
    • Knutson H. A. et al., 2014, ApJ, 785, 126
    • Lendl M. et al., 2012, A&A, 544, A72
    • Lucy L. B., Sweeney M. A., 1971, AJ, 76, 544
    • Mallonn M. et al., 2015, A&A, 580, A60
    • Mancini L. et al., 2014, MNRAS, 443, 2391
    • Mancini L. et al., 2015, A&A, 579, A136
    • Maxted P. F. L. et al., 2010, AJ, 140, 2007
    • Maxted P. F. L. et al., 2011a, PASP, 123, 547
    • Maxted P. F. L., Koen C., Smalley B., 2011b, MNRAS, 418, 1039 Mohler-Fischer M. et al., 2013, A&A, 558, A55
    • Mortier A., Santos N. C., Sousa S. G., Fernandes J. M., Adibekyan V. Z., Delgado Mena E., Montalto M., Israelian G., 2013, A&A, 558, A106 Neveu-VanMalle M. et al., 2016, A&A, 586, A93
    • Nikolov N. et al., 2014, MNRAS, 437, 46
    • Nutzman P. A., Fabrycky D. C., Fortney J. J., 2011, ApJ, 740, L10 Oshagh M., Santos N. C., Boisse I., Boue´ G., Montalto M., Dumusque X., Haghighipour N., 2013, A&A, 556, A19
    • Pietrinferni A., Cassisi S., Salaris M., Castelli F., 2004, ApJ, 612, 168 Poddany´ S., Bra´t L., Pejcha O., 2010, New Astron., 15, 297
    • Pollacco D. L. et al., 2006, PASP, 118, 1407
    • Pont F., Husnoo N., Mazeh T., Fabrycky D., 2011, MNRAS, 414, 1278 Sanchis-Ojeda R., Winn J. N., 2011, ApJ, 743, 61
    • Sanchis-Ojeda R., Winn J. N., Holman M. J., Carter J. A., Osip D. J., Fuentes C. I., 2011, ApJ, 733, 127
    • Sanchis-Ojeda R. et al., 2012, Nature, 487, 449
    • Sanchis-Ojeda R. et al., 2013, ApJ, 775, 54
    • Silva-Valio A., 2008, ApJ, 683, L179
    • Skottfelt J. et al., 2015, A&A, 574, A54
    • Southworth J., 2008, MNRAS, 386, 1644
    • Southworth J., 2009, MNRAS, 394, 272
    • Southworth J., 2011, MNRAS, 417, 2166
    • Southworth J., 2012, MNRAS, 426, 1291
    • Southworth J., 2013, A&A, 557, A119
    • Southworth J. et al., 2009, MNRAS, 396, 1023
    • Southworth J. et al., 2014, MNRAS, 444, 776
    • Stetson P. B., 1987, PASP, 99, 191
    • Ter Braak C. J. F., 2006, Stat. Comput., 16, 239
    • Tregloan-Reed J., Southworth J., Tappert C., 2013, MNRAS, 428, 3671 Tregloan-Reed J. et al., 2015, MNRAS, 450, 1760
    • VandenBerg D. A., Bergbusch P. A., Dowler P. D., 2006, ApJS, 162, 375
    • Winn J. N., Fabrycky D., Albrecht S., Johnson J. A., 2010, ApJ, 718, L145
    • 1Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK 2NASA Ames Research Center, Moffett Field, CA 94035, USA
    • 3Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries vej 30, DK-2100 Copenhagen Ø, Denmark
    • 4NASA Exoplanet Science Institute, MS 100-22, California Institute of Technology, Pasadena, CA 91125, USA
    • 5Dipartimento di Fisica 'E.R. Caianiello', Universita` di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (SA), Italy
    • 6Istituto Internazionale per gli Alti Studi Scientifici (IIASS), I-84019 Vietri Sul Mare (SA), Italy
    • 7Max Planck Institute for Astronomy, Ko¨nigstuhl 17, D-69117 Heidelberg, Germany
    • 8Unidad de Astronom´ıa, Facultad de Ciencias Ba´sicas, Universidad de Antofagasta, Avenida U. de Antofagasta 02800, Antofagasta, Chile 9SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews KY16 9SS, UK
    • 10Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
    • 11Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
    • 12Korea Astronomy and Space Science Institute, Daejeon 305-348, Republic of Korea
    • 13Niels Bohr Institute and Centre for Star and Planet Formation, University of Copenhagen, Øster Voldgade 5, DK-1350 Copenhagen K, Denmark 14INAF - Osservatorio Astrofisico di Torino, via Osservatorio 20, I-10025 Pino Torinese, Italy
    • 15Instituto de Astrof´ısica, Facultad de F´ısica, Pontificia Universidad Cato´lica de Chile, Av. Vicun˜a Mackenna 4860, 7820436 Macul, Santiago, Chile
    • 16Centre of Electronic Imaging, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
    • 17Stellar Astrophysics Centre (SAC), Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark 18Institut d'Astrophysique et de Ge´ophysique, Universite´ de Lie`ge, B-4000 Lie`ge, Belgium
    • 19Qatar Environment and Energy Research Institute (QEERI), HBKU, Qatar Foundation, PO Box 5825, Doha, Qatar
    • 20Department of Astronomy, Boston University, 725 Commonwealth Avenue, Boston, MA 02215, USA
    • 21Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, I-80126 Napoli, Italy
    • 22Universita¨t Hamburg, Meteorologisches Institut, Bundesstraße 55, D-20146 Hamburg, Germany
    • 23Astronomisches Rechen-Institut, Zentrum fu¨r Astronomie, Universita¨t Heidelberg, Mo¨nchhofstraße 12-14, D-69120 Heidelberg, Germany 24Hamburger Sternwarte, Universita¨t Hamburg, Gojenbergsweg 112, D-21029 Hamburg, Germany
    • 25Dipartimento di Fisica e Astronomia, Universita` di Bologna, Viale Berti Pichat 6/2, I-40127 Bologna, Italy
    • 26Main Astronomical Observatory, Academy of Sciences of Ukraine, vul. Akademika Zabolotnoho 27, UA-03680 Kyiv, Ukraine
    • 27European Southern Observatory, Karl-Schwarzschild-Straße 2, D-85748 Garching bei Mu¨nchen, Germany
    • 28Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
    • 29Jodrell Bank Centre for Astrophysics, University of Manchester, Oxford Road, Manchester M13 9PL, UK
    • 30Finnish Centre for Astronomy with ESO (FINCA), University of Turku, Va¨isa¨la¨ntie 20, FI-21500 Piikkio¨, Finland
    • 31Department of Astronomy, Ohio State University, 140 W. 18th Ave, Columbus, OH 43210, USA
    • 32Department of Physics, Sharif University of Technology, P. O. Box 11155- 9161 Tehran, Iran
    • 33Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
  • No related research data.
  • Discovered through pilot similarity algorithms. Send us your feedback.

Share - Bookmark

Funded by projects


Cite this article