Now showing items 1-7 of 7

    • An accurate mass determination for Kepler-1655b, a moderately-irradiated world with a significant volatile envelope 

      Haywood, Raphaelle D.; Vanderburg, Andrew; Mortier, Annelies; Giles, Helen A. C.; Lopez-Morales, Mercedes; Lopez, Eric D.; Malavolta, Luca; Charbonneau, David; Cameron, Andrew Collier; Coughlin, Jeffrey L.; Dressing, Courtney D.; Nava, Chantanelle; Latham, David W.; Dumusque, Xavier; Lovis, Christophe; Molinari, Emilio; Pepe, Francesco; Sozzetti, Alessandro; Udry, Stephane; Bouchy, Francois; Johnson, John A.; Mayor, Michel; Micela, Giusi; Phillips, David; Piotto, Giampaolo; Rice, Ken; Sasselov, Dimitar; Segransan, Damien; Watson, Chris; Affer, Laura; Bonomo, Aldo S.; Buchhave, Lars A.; Ciardi, David R.; Fiorenzano, Aldo F.; Harutyunyan, Avet (2018-05) - Journal article
      We present the confirmation of a small, moderately-irradiated (F= 155±7 F⊕) Neptune with a substantial gas envelope in a P=11.8728787±0.0000085-day orbit about a quiet, Sun-like G0V star Kepler-1655. Based on our analysis ...
    • A comparison of simulated JWST observations derived from equilibrium and non-equilibrium chemistry models of giant exoplanets 

      Blumenthal, Sarah D.; Mandell, Avi M.; Hébrard, Eric; Batalha, Natasha E.; Cubillos, Patricio E.; Rugheimer, Sarah; Wakeford, Hannah R. (2018-01-30) - Journal article
      We aim to see if the difference between equilibrium and disequilibrium chemistry is observable in the atmospheres of transiting planets by the James Webb Space Telescope (JWST). We perform a case study comparing the dayside ...
    • A discrete set of possible transit ephemerides for two long-period gas giants orbiting HIP 41378 

      Becker, Juliette C.; Vanderburg, Andrew; Rodriguez, Joseph E.; Omohundro, Mark; Adams, Fred C.; Stassun, Keivan G.; Yao, Xinyu; Hartman, Joel; Pepper, Joshua; Bakos, Gaspar; Barentsen, Geert; Beatty, Thomas G.; Bhatti, Waqas; Chontos, Ashley; Collier Cameron, Andrew; Hellier, Coel; Huber, Daniel; James, David; Kuhn, Rudolf B.; Lund, Michael B.; Pollacco, Don; Siverd, Robert J.; Stevens, Daniel J.; Cardoso, José Vinícius de Miranda; West, Richard (2019-01) - Journal article
      In 2015, K2 observations of the bright (V = 8.9, K = 7.7) star HIP 41378 revealed a rich system of at least five transiting exoplanets, ranging in size from super-Earths to gas giants. The 2015 K2 observations only spanned ...
    • Dust in brown dwarfs and extrasolar planets : V. Cloud formation in carbon- and oxygen-rich environments 

      Helling, Ch; Tootill, D.; Woitke, P.; Lee, G. (2017-07) - Journal article
      Context. Recent observations indicate potentially carbon-rich (C/O > 1) exoplanet atmospheres. Spectral fitting methods for brown dwarfs and exoplanets have invoked the C/O ratio as additional parameter but carbon-rich ...
    • An enigmatic pointlike feature within the HD 169142 transitional disk 

      Biller, Beth A.; Males, Jared; Rodigas, Timothy; Morzinski, Katie; Close, Laird M.; Juhász, Attila; Follette, Katherine B.; Lacour, Sylvestre; Benisty, Myriam; Sicilia-Aguilar, Aurora; Hinz, Philip M.; Weinberger, Alycia; Henning, Thomas; Pott, Jörg-Uwe; Bonnefoy, Mickaël; Köhler, Rainer (2014-08-20) - Journal article
      We report the detection of a faint pointlike feature possibly related to ongoing planet-formation in the disk of the transition disk star HD 169142. The pointlike feature has a Delta-mag(L) ∼ 6.4, at a separation of ∼ 0" ...
    • OGLE-2012-BLG-0563Lb : a Saturn-mass planet around an M dwarf with the mass constrained by Subaru AO imaging 

      Fukui, A.; Gould, A.; Sumi, T.; Bennett, D. P.; Bond, I. A.; Han, C.; Suzuki, D.; Beaulieu, J.-P.; Batista, V.; Udalski, A.; Street, R. A.; Tsapras, Y.; Hundertmark, Markus Peter Gerhard; Abe, F.; Bhattacharya, A.; Freeman, M.; Itow, Y.; Ling, C. H.; Koshimoto, N.; Masuda, K.; Matsubara, Y.; Muraki, Y.; Ohnishi, K.; Philpott, L. C.; Rattenbury, N.; Saito, T.; Sullivan, D. J.; Tristram, P. J.; Yonehara, A.; Choi, J.-Y.; Christie, G. W.; DePoy, D. L.; Dong, Subo; Drummond, J.; Gaudi, B. S.; Hwang, K.-H.; Kavka, A.; Lee, C.-U.; McCormick, J.; Natusch, T.; Ngan, H.; Park, H.; Pogge, R. W.; Shin, I.-G.; Tan, T.-G.; Yee, J. C.; Szymański, M. K.; Pietrzyński, G.; Soszyński, I.; Poleski, R.; Kozłowski, S.; Pietrukowicz, P.; Ulaczyk, K.; Wyrzykowski, Ł.; Bramich, D. M.; Browne, Paul; Dominik, Martin; Horne, Keith Douglas; Ipatov, S.; Kains, N.; Snodgrass, C.; Steele, I. A. (2015-08-11) - Journal article
      We report the discovery of a microlensing exoplanet OGLE-2012-BLG-0563Lb with the planet–star mass ratio of ∼1 x 10-3. Intensive photometric observations of a high-magnification microlensing event allow us to detect a clear ...
    • Simulating the cloudy atmospheres of HD 209458 b and HD 189733 b with the 3D Met Office Unified Model 

      Lines, Stefan; Mayne, Nathan; Boutle, I. A.; Manners, J.; Lee, Graham Kim Huat; Helling, Christiane; Drummond, B.; Amundsen, D. S.; Goyal, J.; Acreman, D. M.; Tremblin, P.; Kerslake, M. (2018-07) - Journal article
      Aims.To understand and compare the 3D atmospheric structure of HD 209458 b and HD 189733 b, focusing on the formation and distribution of cloud particles, as well as their feedback on the dynamics and thermal profile. ...