Now showing items 1-10 of 10

  • The 2014-2017 outburst of the young star ASASSN-13db. A time-resolved picture of a very-low-mass star between EXors and FUors 

    Sicilia-Aguilar, A.; Oprandi, A.; Froebrich, D.; Fang, M.; Prieto, J. L.; Stanek, K.; Scholz, A.; Kochanek, C. S.; Henning, Th.; Gredel, R.; Holoien, T. W.-S.; Rabus, M.; Shappee, B. J.; Billington, S. J.; Campbell-White, J.; Zegmott, T. J. (2017-11) - Journal article
    Context. ASASSN-13db is a M5-type star with a protoplanetary disk, the lowest mass star known to experience accretion outbursts. Since its discovery in 2013, it has experienced two outbursts, the second of which started ...
  • The abundance and thermal history of water ice in the disk surrounding HD 142527 from the DIGIT Herschel Key Program 

    Min, M.; Bouwman, J.; Dominik, C.; Waters, L. B. F. M.; Pontoppidan, K. M.; Hony, S.; Mulders, G. D.; Henning, Th.; van Dishoeck, E. F.; Woitke, P.; Evans II, Neal J.; The DIGIT Team (2016-09-01) - Journal article
    Context. The presence or absence of ice in protoplanetary disks is of great importance to the formation of planets. By enhancing solid surface density and increasing sticking efficiency, ice catalyzes the rapid formation ...
  • A gas density drop in the inner 6 AU of the transition disk around the Herbig Ae star HD 139614 : Further evidence for a giant planet inside the disk? 

    Carmona, A.; Thi, W. F.; Kamp, I.; Baruteau, C.; Matter, A.; van den Ancker, M.; Pinte, C.; Kóspál, A.; Audard, M.; Liebhart, A.; Sicilia-Aguilar, A.; Pinilla, P.; Regály, Zs.; Güdel, M.; Henning, Th.; Cieza, L. A.; Baldovin-Saavedra, C.; Meeus, G.; Eiroa, C. (2017-02) - Journal article
    Context. Quantifying the gas surface density inside the dust cavities and gaps of transition disks is important to establish their origin. Aims. We seek to constrain the surface density of warm gas in the inner disk of HD ...
  • GW Orionis : inner disk readjustments in a triple system 

    Fang, M.; Sicilia-Aguilar, A.; Roccatagliata, V.; Fedele, D.; Henning, Th.; Eiroa, C.; Müller, A. (2014-10) - Journal article
    (abridged) We study the young stellar system GW Ori, concentrating on its accretion/wind activity by using our high-resolution optical spectra and U-band photometry. We also characterize the disk properties of GW Ori by ...
  • High-precision photometry by telescope defocusing - VII. The ultrashort period planet WASP-103 

    Southworth, John; Mancini, L.; Ciceri, S.; Budaj, J.; Dominik, Martin; Figuera Jaimes, Roberto Jose; Haugbølle, T.; Jørgensen, U. G.; Popovas, A.; Rabus, M.; Rahvar, S.; von Essen, C.; Schmidt, R. W.; Wertz, O.; Alsubai, K. A.; Bozza, V.; Bramich, D. M.; Calchi Novati, S.; D'Ago, G.; Hinse, T. C.; Henning, Th.; Hundertmark, Markus Peter Gerhard; Juncher, D.; Korhonen, H.; Skottfelt, J.; Snodgrass, C.; Starkey, David; Surdej, J. (2015-02-11) - Journal article
    We present 17 transit light curves of the ultrashort period planetary system WASP-103, a strong candidate for the detection of tidally-induced orbital decay. We use these to establish a high-precision reference epoch for ...
  • Larger and faster : revised properties and a shorter orbital period for the WASP-57 planetary system from a pro-am collaboration 

    Southworth, John; Mancini, L.; Tregloan-Reed, J.; Calchi Novati, S.; Ciceri, S.; D'Ago, G.; Delrez, L.; Dominik, Martin; Evans, D. F.; Gillon, M.; Jehin, E.; Jørgensen, U. G.; Haugbølle, T.; Lendl, M.; Arena, C.; Barbieri, L.; Barbieri, M.; Corfini, G.; Lopresti, C.; Marchini, A.; Marino, G.; Alsubai, K. A.; Bozza, V.; Bramich, D. M.; Figuera Jaimes, Roberto Jose; Hinse, T. C.; Henning, Th.; Hundertmark, M.; Juncher, D.; Korhonen, H.; Popovas, A.; Rabus, M.; Rahvar, S.; Schmidt, R. W.; Skottfelt, J.; Snodgrass, C.; Starkey, David; Surdej, J.; Wertz, O. (2015-12-11) - Journal article
    Transits in the WASP-57 planetary system have been found to occur half an hour earlier than expected. We present 10 transit light curves from amateur telescopes, on which this discovery was based, 13 transit light curves ...
  • Orbital alignment and star-spot properties in the WASP-52 planetary system 

    Mancini, L.; Southworth, J.; Raia, G.; Tregloan-Reed, J.; Mollière, P.; Bozza, V.; Bretton, M.; Bruni, I.; Ciceri, S.; D'Ago, G.; Dominik, M.; Hinse, T. C.; Hundertmark, M.; Jørgensen, U. G.; Korhonen, H.; Rabus, M.; Rahvar, S.; Starkey, D.; Calchi Novati, S.; Figuera Jaimes, R.; Henning, Th.; Juncher, D.; Haugbølle, T.; Kains, N.; Popovas, A.; Schmidt, R. W.; Skottfelt, J.; Snodgrass, C.; Surdej, J.; Wertz, O. (2017-02-11) - Journal article
    We report 13 high-precision light curves of eight transits of the exoplanet WASP-52b, obtained by using four medium-class telescopes,through different filters, and adopting the defocussing technique. One transit was recorded ...
  • Physical properties and transmission spectrum of the WASP-80 planetary system from multi-colour photometry 

    Mancini, L.; Southworth, J.; Ciceri, S.; Dominik, Martin; Henning, Th.; Jorgensen, U. G.; Lanza, A. F.; Rabus, M.; Snodgrass, C.; Vilela, C.; Alsubai, Khalid Abdulla T; Bozza, V.; Bramich, Daniel Martyn; Novati, S. Calchi; D'Ago, G.; Figuera Jaimes, Roberto Jose; Grant, Pasquale; Gu, S. -H.; Harpsoe, K.; Hinse, T.; Hundertmark, Markus Peter Gerhard; Juncher, D.; Kains, Noé; Korhonen, H.; Popovas, A.; Rahvar, S.; Skottfelt, J.; Street, R.; Surdej, J.; Tsapras, Yiannis; Wang, X. -B.; Wertz, O. (2014-02) - Journal article
    WASP-80 is one of only two systems known to contain a hot Jupiter which transits its M-dwarf host star. We present eight light curves of one transit event, obtained simultaneously using two defocussed telescopes. These ...
  • Physical properties of the WASP-67 planetary system from multi-colour photometry 

    Mancini, L.; Southworth, J.; Ciceri, S.; Calchi Novati, S.; Dominik, M.; Henning, Th.; Jørgensen, U. G.; Korhonen, H.; Nikolov, N.; Alsubai, K. A.; Bozza, V.; Bramich, D. M.; D'Ago, G.; Figuera Jaimes, R.; Galianni, P.; Gu, S.-H.; Harpsøe, K.; Hinse, T. C.; Hundertmark, M.; Juncher, D.; Kains, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Skottfelt, J.; Snodgrass, C.; Street, R.; Surdej, J.; Tsapras, Y.; Vilela, C.; Wang, X.-B.; Wertz, O. (2014-08) - Journal article
    Context. The extrasolar planet WASP-67 b is the first hot Jupiter definitively known to undergo only partial eclipses. The lack of the second and third contact points in this planetary system makes it difficult to obtain ...
  • Rotation periods and astrometric motions of the Luhman 16AB brown dwarfs by high-resolution lucky-imaging monitoring 

    Mancini, L.; Giacobbe, P.; Littlefair, S. P.; Southworth, J.; Bozza, V.; Damasso, M.; Dominik, Martin; Hundertmark, Markus Peter Gerhard; Jørgensen, U. G.; Juncher, Diana; Popovas, A.; Rabus, M.; Rahvar, S.; Schmidt, R. W.; Skottfelt, J.; Snodgrass, C.; Sozzetti, A.; Alsubai, K.; Bramich, D. M.; Calchi Novati, S.; Ciceri, S.; D'Ago, G.; Figuera Jaimes, Roberto Jose; Galianni, P.; Gu, S.-H.; Harpsøe, K.; Haugbølle, T.; Henning, Th.; Hinse, T. C.; Kains, Noé; Korhonen, H.; Scarpetta, G.; Starkey, David; Surdej, J.; Wang, X.-B.; Wertz, O. (2015-12-01) - Journal article
    Context. Photometric monitoring of the variability of brown dwarfs canprovide useful information about the structure of clouds in their cold atmospheres.The brown-dwarf binary system Luhman 16AB is an interesting target ...