Now showing items 1-14 of 14

  • Atmospheric electrification in dusty, reactive gases in the solar system and beyond 

    Helling, Christiane; Harrison, R. Giles; Honary, Farideh; Diver, Declan A.; Aplin, Karen; Dobbs-Dixon, Ian; Ebert, Ute; Inutsuka, Shu-ichiro; Gordillo-Vazquez, Francisco J.; Littlefair, Stuart (2016-07) - Journal item
    Detailed observations of the solar system planets reveal a wide variety of local atmospheric conditions. Astronomical observations have revealed a variety of extrasolar planets none of which resembles any of the solar ...
  • Dust cloud lightning in extraterrestrial atmospheres 

    Helling, Christiane; Jardine, Moira Mary; Diver, Declan; Witte, Sören (2013-03-01) - Journal article
    Lightning is present in all solar system planets which form clouds in their atmospheres. Cloud formation outside our solar system is possible in objects with much higher temperatures than on Earth or on Jupiter: Brown ...
  • The effects of tidal interactions on the properties and evolution of hot-Jupiter planetary systems. 

    Brown, David John Alexander (University of St Andrews, 2013-11-29) - Thesis
    Thanks to a range of discovery methods that are sensitive to different regions of parameter space, we now know of over 900 planets in over 700 planetary systems. This large population has allowed exoplanetary scientists ...
  • The mass of Kepler-93b and the composition of terrestrial planets 

    Dressing, Courtney D.; Charbonneau, David; Dumusque, Xavier; Gettel, Sara; Pepe, Francesco; Cameron, Andrew Collier; Latham, David W.; Molinari, Emilio; Udry, Stephane; Affer, Laura; Bonomo, Aldo S.; Buchhave, Lars A.; Cosentino, Rosario; Figueira, Pedro; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Haywood, Raphaelle D.; Johnson, John Asher; Lopez-Morales, Mercedes; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Motalebi, Fatemeh; Nascimbeni, Valerio; Phillips, David F.; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Rice, Ken; Sasselov, Dimitar; Segransan, Damien; Sozzetti, Alessandro; Szentgyorgyi, Andrew; Watson, Chris (2015-02-20) - Journal article
    Kepler-93b is a 1.478 ± 0.019 R ⊕ planet with a 4.7 day period around a bright (V = 10.2), astroseismically characterized host star with a mass of 0.911 ± 0.033 M ☉ and a radius of 0.919 ± 0.011 R ☉. Based on 86 radial ...
  • Microlensing discovery of a population of very tight, very low mass binary brown dwarfs 

    Choi, J. -Y.; Han, C.; Udalski, A.; Sumi, T.; Gaudi, B. S.; Gould, A.; Bennett, D. P.; Dominik, M.; Beaulieu, J. -P.; Tsapras, Y.; Bozza, V.; Abe, F.; Bond, I. A.; Botzler, C. S.; Chote, P.; Freeman, M.; Fukui, A.; Furusawa, K.; Itow, Y.; Ling, C. H.; Masuda, K.; Matsubara, Y.; Miyake, N.; Muraki, Y.; Ohnishi, K.; Rattenbury, N. J.; Saito, To.; Sullivan, D. J.; Suzuki, K.; Sweatman, W. L.; Suzuki, D.; Takino, S.; Tristram, P. J.; Wada, K.; Yock, P. C. M.; Szymanski, M. K.; Kubiak, M.; Pietrzynski, G.; Soszynski, I.; Skowron, J.; Kozlowski, S.; Poleski, R.; Ulaczyk, K.; Wyrzykowski, L.; Pietrukowicz, P.; Almeida, L. A.; DePoy, D. L.; Dong, Subo; Gorbikov, E.; Jablonski, F.; Henderson, C. B.; Hwang, K. -H.; Janczak, J.; Jung, Y. -K.; Kaspi, S.; Lee, C. -U.; Malamud, U.; Maoz, D.; McGregor, D.; Munoz, J. A.; Park, B. -G.; Park, H.; Pogge, R. W.; Shvartzvald, Y.; Shin, I. -G.; Yee, J. C.; Alsubai, K. A.; Browne, P.; Burgdorf, M. J.; Calchi Novati, S.; Dodds, P.; Fang, X. -S.; Finet, F.; Glitrup, M.; Grundahl, F.; Gu, S. -H.; Hardis, S.; Harpsoe, K.; Hinse, T. C.; Hornstrup, A.; Hundertmark, M.; Jessen-Hansen, J.; Jrgensen, U. G.; Kains, Noé; Kerins, E.; Liebig, C.; Lund, M. N.; Lundkvist, M.; Maier, G.; Mancini, L.; Mathiasen, M.; Penny, M. T.; Rahvar, S.; Ricci, D.; Scarpetta, G.; Skottfelt, J.; Snodgrass, C.; Southworth, J.; Surdej, J.; Tregloan-Reed, J.; Wambsganss, J.; Wertz, O.; Zimmer, F.; Albrow, M. D.; Bachelet, E.; Batista, V.; Brillant, S.; Cassan, A.; Cole, A. A.; Coutures, C.; Dieters, S.; Prester, D. Dominis; Donatowicz, J.; Fouque, P.; Greenhill, J.; Kubas, D.; Marquette, J. -B.; Menzies, J. W.; Sahu, K. C.; Zub, M.; Bramich, D. M.; Horne, K.; Steele, I. A.; Street, R. A. (2013-05-10) - Journal article
    Although many models have been proposed, the physical mechanisms responsible for the formation of low-mass brown dwarfs (BDs) are poorly understood. The multiplicity properties and minimum mass of the BD mass function ...
  • Microlensing for extrasolar planets : improving the photometry 

    Bajek, David J. (University of St Andrews, 2013-06) - Thesis
    Gravitational Microlensing, as a technique for detecting Extrasolar Planets, is recognised for its potential in discovering small-mass planets similar to Earth, at a distance of a few Astronomical Units from their host ...
  • Revisiting the transits of CoRoT-7b at a lower activity level 

    Barros, S. C. C.; Almenara, J. M.; Deleuil, M.; Diaz, R. F.; Csizmadia, Sz; Cabrera, J.; Chaintreuil, S.; Collier Cameron, A.; Hatzes, A.; Haywood, R.; Lanza, A. F.; Aigrain, S.; Alonso, R.; Borde, P.; Bouchy, F.; Deeg, H. J.; Erikson, A.; Fridiund, M.; Grziwa, S.; Gandolfi, D.; Guillot, T.; Guenther, F.; Leger, A.; Moutou, C.; Ollivier, M.; Pasternacki, T.; Patzold, M.; Rauer, H.; Rouan, D.; Santerne, A.; Schneider, J.; Wuchter, G. (2014-09) - Journal article
    The first super-Earth with measured radius discovered was CoRoT-7b and it has opened the new field of rocky exoplanet characterisation. To better understand this interesting system, new observations were taken with the ...
  • The Solar System in perspective : from debris discs to extrasolar planets 

    Kains, Noé (University of St Andrews, 2010-11-30) - Thesis
    The last twenty-five years have seen our understanding of the formation and abundance of planets revolutionised, thanks to the first detections of debris discs, and, a decade later, of the first extrasolar planets. Hardly ...
  • Stellar magnetism and activity : from stellar interiors to orbiting exoplanets 

    See, Wyke Chun Victor (University of St Andrews, 2016-11-30) - Thesis
    The study of magnetic fields on low-mass stars is important due to their ubiquity. They are responsible for phenomena spanning a wide range of spatial and temporal scales. Over the last two decades, the Zeeman-Doppler ...
  • Things that go bump in the light : an investigation into the effects of stellar activity on extrasolar planets 

    Llama, Joseph (University of St Andrews, 2014-11-30) - Thesis
    The search for planets orbiting stars other than the Sun has led to the discovery of over one thousand new worlds. The majority of these planets have been very large, Jupiter sized planets located very close to their host ...
  • Three newly discovered sub-Jupiter-mass planets : WASP-69b and WASP-84b transit active K dwarfs and WASP-70Ab transits the evolved primary of a G4+K3 binary 

    Anderson, D. R.; Cameron, A. Collier; Delrez, L.; Doyle, A. P.; Faedi, F.; Fumel, A.; Gillon, M.; Chew, Y. Gomez Maqueo; Hellier, C.; Jehin, E.; Lendl, M.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Segransan, D.; Skillen, I.; Smalley, B.; Smith, A. M. S.; Southworth, J.; Triaud, A. H. M. J.; Turner, O. D.; Udry, S.; West, R. G. (2014-12-01) - Journal article
    We report the discovery of the transiting exoplanets WASP-69b, WASP-70Ab and WASP-84b, each of which orbits a bright star (V ∼ 10). WASP-69b is a bloated Saturn-mass planet (0.26 MJup, 1.06 RJup) in a 3.868-d period around ...
  • The transiting system GJ1214 : high-precision defocused transit observations and a search for evidence of transit timing variation 

    Harpsoe, K. B. W.; Hardis, S.; Hinse, T. C.; Jorgensen, G.; Mancini, L.; Southworth, J.; Alsubai, K. A.; Bozza, V.; Browne, P.; Burgdorf, M. J.; Calchi Novati, S.; Dodds, P.; Dominik, M.; Fang, X. -S.; Finet, F.; Gerner, T.; Gu, S. -H; Hundertmark, M.; Jessen-Hansen, J.; Kains, Noé; Kerins, E.; Kjeldsen, H.; Liebig, C.; Lund, M. N.; Lundkvist, M.; Mathiasen, M.; Nesvorny, D.; Nikolov, N.; Penny, M. T.; Proft, S.; Rahvar, S.; Ricci, D.; Sahu, K. C.; Scarpetta, G.; Schaefer, S.; Schoenebeck, F.; Snodgrass, C.; Skottfelt, J.; Surdej, J.; Tregloan-Reed, J.; Wertz, O. (2013-01) - Journal article
    Aims. We present 11 high-precision photometric transit observations of the transiting super-Earth planet GJ 1214 b. Combining these data with observations from other authors, we investigate the ephemeris for possible signs ...
  • WASP-135b : a highly irradiated, inflated hot Jupiter orbiting a G5V star 

    Spake, Jessica J.; Brown, David John Alexander; Doyle, Amanda P.; Hébrard, Guillaume; McCormac, James; Armstrong, David J.; Pollacco, Don; Chew, Yilen Gómez Maqueo; Anderson, David R.; Barros, Susana C. C.; Bouchy, François; Boumis, Panayotis; Bruno, Giovanni; Cameron, Andrew Collier; Courcol, Bastien; Davies, Guy R.; Faedi, Francesca; Hellier, Coel; Kirk, James; Lam, Kristine W. F.; Liakos, Alexios; Louden, Tom; Maxted, Pierre F. L.; Osborn, Hugh P.; Palle, Enric; Arranz, Jorge Prieto; Udry, Stéphane; Walker, Simon R.; West, Richard G.; Wheatley, Peter J. (2016-01-14) - Journal article
    We report the discovery of a new transiting planet from the WASP survey. WASP-135b is a hot Jupiter with a radius of 1.30 pm 0.09 Rjup, a mass of 1.90 pm 0.08 Mjup and an orbital period of 1.401 days. Its host is a Sun-like ...
  • Wide angle search for extrasolar planets by the transit method 

    Alsubai, Khalid (University of St Andrews, 2008-06-24) - Thesis
    The transit method is considered to be one of the most promising for discovering extrasolar planets. However, the method requires photometric precision of better than ∼ 1%. If we are able to achieve this kind of accuracy, ...