Now showing items 1-14 of 14

    • A complex storm system in Saturn's north polar atmosphere in 2018 

      Sánchez Lavega, Agustín; García Melendo, Enrique José; Legarreta, Jon J.; Hueso, Ricardo; del Rio Gaztelurrutia, Teresa; Sanz-Requena, Jose Francisco; Pérez Hoyos, Santiago; Simon, Amy A.; Wong, Michael; Soria Guerrero, Manel; Gómez Forrellad, Josep Maria; Barry, Trevor; Delcroix, Marc; Sayanagi, Kunio; Blalock, J; Gunnarson, J. L.; Dyudina, Uliana; Ewald, S. (Springer Nature, 2019-10-21)
      Article
      Open Access
      Saturn’s convective storms usually fall in two categories. One consists of mid-sized storms ~2,000¿km wide, appearing as irregular bright cloud systems that evolve rapidly, on scales of a few days. The other includes the ...
    • A large active wave trapped in Jupiter's equator 

      Legarreta, Jon; Barrado-Izaguirre, Naiara; García Melendo, Enrique José; Sanchez-Lavega, Agustin; Gómez-Forrellad, Josep M. (EDP Sciences, 2017-02-11)
      Article
      Open Access
      Context. A peculiar atmospheric feature was observed in the equatorial zone (EZ) of Jupiter between September and December 2012 in ground-based and Hubble Space Telescope (HST) images. This feature consisted of two low ...
    • A planetary-scale disturbance in a long living three vortex coupled system in Saturn's atmosphere 

      del Rio-Gaztelurrutia, Teresa; Sanchez-Lavega, Agustin; Antuñano, Arrate; Legarreta, Jon; García Melendo, Enrique José; Sayanagi, Kunio; Hueso, Ricardo; Wong, Michael; Pérez Hoyos, Santiago; Rojas, Jose Felix; Simon, A. A.; de Pater, Imke; Blalock, J.; Barry, Trevor (2018-03-01)
      Article
      Open Access
      The zonal wind profile of Saturn has a unique structure at 60°N with a double-peaked jet that reaches maximum zonal velocities close to 100 ms-1. In this region, a singular group of vortices consisting of a cyclone surrounded ...
    • A planetary-scale disturbance in a long-living three-vortex coupled system in Saturn's atmosphere 

      del Rio-Gaztelurrutia, Teresa; Sanchez-Lavega, Agustin; Antuñano, Arrate; García Melendo, Enrique José; Legarreta, Jon; Sayanagi, Kunio; Hueso, Ricardo; Wong, Michael; Perez-Hoyos, Santiago; Sanz-Requena, Jose Francisco; Rojas, Jose Felix; Simon, Amy; de Pater, Imke; Barry, Trevor (2017)
      Conference lecture
      Open Access
      The zonal wind profile of Saturn has a singular structure in the latitude range 50ºN-65ºN planetocentric, with a double peak that reaches maximum zonal velocities close to 100ms-1[1]. A survey of Cassini ISS images ...
    • A planetary-scale disturbance in the most intense Jovian atmospheric jet from JunoCam and ground-based observations 

      Sanchez-Lavega, Agustin; Rogers, John H; Orton, Glenn; García Melendo, Enrique José; Legarreta, Jon; Colas, Françoise; Dauvergne, J; Hueso, Ricardo; Rojas, Jose Félix; Perez-Hoyos, Santiago; Mendikoa, Iñigo; Iñurrigarro, P; Gómez-Forrellad, Josep M.; Momary, T; Hansen, C. J.; Eichstaedt, G.; Miles, P; Wesley, A (2017-05-25)
      Article
      Open Access
      We describe a huge planetary-scale disturbance in the highest-speed Jovian jet at latitude 23.5°N that was first observed in October 2016 during the Juno perijove-2 approach. An extraordinary outburst of four plumes was ...
    • AKATSUKI-IR2 reveals unexpected opacity disruption affecting Venus's lower clouds every 9 days 

      Peralta, Javier; Satoh, T; Horinouchi, T; Ogohara, K; Kouyama, T; Murakami, S; Imamura, T; McGouldrick, K; Sato, T M; Limaye, Sanjai; García Melendo, Enrique José; Sanchez-Lavega, Agustin; Hueso, Ricardo (2017)
      Conference report
      Open Access
      The images of AKATSUKI acquired with the camera IR2 at 1.74-2.3 µm report the discovery of an equatorial disruption or “front” in the opacity of the lower clouds of Venus at 50 km between 30ºN¿30ºS. This feature appears ...
    • An enduring rapidly moving storm as a guide to Saturn's Equatorial jet's complex structure 

      Sanchez-Lavega, Agustin; García Melendo, Enrique José; Perez-Hoyos, Santiago; Hueso, Ricardo; Wong, Michael; Simon, Amy A.; Sanz-Requena, Jose Francisco; Antuñano, Arrate; Barrado-Izaguirre, Naiara; Garate-López, Itziar; Rojas, Jose Félix; del Rio-Gaztelurrutia, Teresa; Gómez-Forrellad, Josep M.; de Pater, Imke; Li, Liming; Barry, Trevor (2016-11-08)
      Article
      Open Access
      Saturn has an intense and broad eastward equatorial jet with a complex three-dimensional structure mixed with time variability. The equatorial region experiences strong seasonal insolation variations enhanced by ring ...
    • Discovery of XO-6b: A Hot Jupiter Transiting a Fast Rotating F5 Star on an Oblique Orbit 

      Crouzet, N.; McCullough, Peter; Long, D.; Montañes Rodriguez, Pilar; Lecavelier des Etangs, A; Ribas, Ignasi; Bourrier, V.; Hébrard, G.; Vilardell, Francesc; Deleuil, M.; Herrero, Enrique; García Melendo, Enrique José; Akhenak, L.; Foote, Cindy; Gary, B.; Benny, P.; Guillot, T.; Conjat, M.; Mékarnia, D.; Garlitz, J.; Burke, C. J.; Courcol, B.; Demangeon, O (2017-02-03)
      Article
      Open Access
      Only a few hot Jupiters are known to orbit around fast rotating stars. These exoplanets are harder to detect and characterize and may be less common than around slow rotators. Here, we report the discovery of the transiting ...
    • Jupiter as an exoplanet: UV to NIR transmission spectrum reveals hazes, a Na layer, and possibly stratospheric H2O-ice clouds 

      Montañés-Ridríguez, Pilar; González-Merino, B.; Pallé, Enric; López-Puertas, Manuel; García Melendo, Enrique José (Institute of Physics (IOP), 2015-02-26)
      Article
      Open Access
      Currently, the analysis of transmission spectra is the most successful technique to probe the chemical composition of exoplanet atmospheres. However, the accuracy of these measurements is constrained by observational ...
    • PlanetCam UPV/EHU: a two-channel lucky imaging camera for solar system studies in the spectral range 0.38-1.7 µm 

      Mendikoa, Iñigo; Sanchez-Lavega, Agustin; Perez-Hoyos, Santiago; Hueso, Ricardo; Rojas, Jose Felix; Aceituno, Jesus; Aceituno Castro, Francisco José; Gaizka, Murga; De Bilbao, Lander; García Melendo, Enrique José (2016-02-02)
      Article
      Open Access
      We present PlanetCam UPV/EHU, an astronomical camera designed fundamentally for high-resolution imaging of Solar System planets using the “lucky imaging” technique. The camera observes in a wavelength range from 380 nm to ...
    • Saturn atmospheric dynamics one year after Cassini: Long-lived features and time variations in the drift of the Hexagon 

      Hueso, Ricardo; Sánchez Lavega, Agustín; Rojas, Jose Félix; Simon, Amy A.; Barry, Trevor; del Rio Gaztelurrutia, Teresa; Antuñano, Arrate; Sayanagi, Kunio; Delcroix, M.; Fletcher, Leigh N.; García Melendo, Enrique José; Pérez Hoyos, Santiago; Blalock, J; Colas, Françoise; Gómez Forrellad, Josep Maria; Gunnarson, J. L.; Peach, D.; Wong, Michael (2020-01-15)
      Article
      Restricted access - publisher's policy
      We examine Saturn's atmospheric dynamics with observations in the visible range from ground-based telescopes and Hubble Space Telescope (HST). We present a detailed analysis of observations acquired during 2018 obtaining ...
    • Shallow water simulations of Saturn's giant storms at different latitudes 

      García Melendo, Enrique José; Sanchez-Lavega, Agustin (2017-04)
      Article
      Open Access
      Shallow water simulations are used to present a unified study of three major storms on Saturn (nicknamed as Great White Spots, GWS) at different latitudes, polar (1960), equatorial (1990), and mid-latitude (2010) ...
    • The EBLM project. II. A very hot, low-mass M dwarf in an eccentric and long-period, eclipsing binary system from the SuperWASP Survey 

      Gómez Maqueo Chew, Y; Morales, Juan Carlos; Faedi, F.; García Melendo, Enrique José; Hebb, L.; Rodler, Florian; Deshpande, R.; Mahadevan, S.; McCormac, J.; Barnes, R.; Triaud, A. H. M. J.; Lopez-Morales, Mercedes; Skillen, I.; Collier Cameron, A.; Joner, M. D.; Laney, C. D.; Stephens, D. C.; Stassun, K. G.; Cargile, P. A.; Montañés-Ridríguez, Pilar (EDP Sciences, 2014-12)
      Article
      Open Access
      In this paper, we derive the fundamental properties of 1SWASPJ011351.29+314909.7 (J0113+31), a metal-poor (-0.40 ± 0.04 dex), eclipsing binary in an eccentric orbit (~0.3) with an orbital period of ~14.277 d. Eclipsing M ...
    • XO-7 b: A Transiting Hot Jupiter with a Massive Companion on a Wide Orbit 

      Crouzet, Nicholas Michael; Healy, Bryan; Hebrard, Guillaume; García Melendo, Enrique José (2020-02-01)
      Article
      Restricted access - publisher's policy
      Transiting planets orbiting bright stars are the most favorable targets for follow-up and characterization. We report the discovery of the transiting hot Jupiter XO-7 b and of a second, massive companion on a wide orbit ...