Now showing items 1-15 of 15

    • A 1.9 Earth radius rocky planet and the discovery of a non-transiting planet in the Kepler-20 system 

      Buchhave, Lars A.; Dressing, Courtney D.; Dumusque, Xavier; Rice, Ken; Vanderburg, Andrew; Mortier, Annelies; Lopez-Morales, Mercedes; Lopez, Eric; Lundkvist, Mia S.; Kjeldsen, Hans; Affer, Laura; Bonomo, Aldo S.; Charbonneau, David; Cameron, Andrew Collier; Cosentino, Rosario; Figueira, Pedro; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Haywood, Raphaëlle D.; Johnson, John Asher; Latham, David W.; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Motalebi, Fatemeh; Nascimbeni, Valerio; Pepe, Francesco; Phillips, David F.; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Udry, Stéphane; Watson, Chris (2016-11-11) - Journal article
      Kepler-20 is a solar-type star (V = 12.5) hosting a compact system of five transiting planets, all packed within the orbital distance of Mercury in our own Solar System. A transition from rocky to gaseous planets with a ...
    • 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 ...
    • An astro-comb calibrated solar telescope to search for the radial velocity signature of Venus 

      Phillips, David F.; Glenday, Alex G.; Dumusque, Xavier; Buchschacher, Nicolas; Cameron, Andrew Collier; Cecconi, Massimo; Charbonneau, David; Cosentino, Rosario; Ghedina, Adriano; Haywood, Raphäelle; Latham, David W.; Li, Chih Hao; Lodi, Marcello; Lovis, Christophe; Molinari, Emilio; Pepe, Francesco; Sasselov, Dimitar; Szentgyorgyi, Andrew; Udry, Stephane; Walsworth, Ronald L. (SPIE, 2016-07-22) - Conference item
      We recently demonstrated sub-m/s sensitivity in measuring the radial velocity (RV) between the Earth and Sun using a simple solar telescope feeding the HARPS-N spectrograph at the Italian National Telescope, which is ...
    • Characterizing K2 planet discoveries : a super-Earth transiting the bright K dwarf HIP 116454 

      Vanderburg, Andrew; Montet, Benjamin T.; Johnson, John Asher; Buchhave, Lars A.; Zeng, Li; Pepe, Francesco; Cameron, Andrew Collier; Latham, David W.; Molinari, Emilio; Udry, Stephane; Lovis, Christophe; Matthews, Jaymie M.; Cameron, Chris; Law, Nicholas; Bowler, Brendan P.; Angus, Ruth; Baranec, Christoph; Bieryla, Allyson; Boschin, Walter; Charbonneau, David; Cosentino, Rosario; Dumusque, Xavier; Figueira, Pedro; Guenther, David B.; Harutyunyan, Avet; Hellier, Coel; Kuschnig, Rainer; Lopez-Morales, Mercedes; Mayor, Michel; Micela, Giusi; Moffat, Anthony F. J.; Pedani, Marco; Phillip, David F.; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Rice, Ken; Riddle, Reed; Rowe, Jason F.; Rucinski, Slavek M.; Sasselov, Dimitar; Segransan, Damien; Sozzetti, Alessandro; Szentgyorgyi, Andrew; Watson, Chris; Weiss, Werner W. (2015-02-10) - Journal article
      We report the first planet discovery from the two-wheeled Kepler (K2) mission: HIP 116454 b. The host star HIP 116454 is a bright (V = 10.1, K = 8.0) K1 dwarf with high proper motion and a parallax-based distance of 55.2 ...
    • HARPS-N observes the Sun as a star 

      Dumusque, Xavier; Glenday, Alex; Phillips, David F.; Buchschacher, Nicolas; Cameron, Andrew Collier; Cecconi, Massimo; Charbonneau, David; Cosentino, Rosario; Ghedina, Adriano; Latham, David W.; Li, Chih-Hao; Lodi, Marcello; Lovis, Christophe; Molinari, Emilio; Pepe, Francesco; Udry, Stéphane; Sasselov, Dimitar; Szentgyorgyi, Andrew; Walsworth, Ronald (2015-12-01) - Journal article
      Radial velocity (RV) perturbations induced by stellar surface inhomogeneities including spots, plages and granules currently limit the detection of Earth-twins using Doppler spectroscopy. Such stellar noise is poorly ...
    • K2-291b : a rocky super-Earth in a 2.2 day orbit 

      Kosiarek, Molly R.; Blunt, Sarah; Lopez-Morales, Mercedes; Crossfield, Ian J. M.; Sinukoff, Evan; Petigura, Erik A.; Gonzales, Erica J.; Poretti, Ennio; Malavolta, Luca; Howard, Andrew W.; Isaacson, Howard; Haywood, Raphaelle D.; Ciardi, David R.; Bristow, Makennah; Cameron, Andrew Collier; Charbonneau, David; Dressing, Courtney D.; Figueird, Pedro; Fulton, Benjamin J.; Hardee, Bronwen J.; Hirsch, Lea A.; Latham, David W.; Mortier, Annelies; Nava, Chantanelle; Schlieder, Joshua E.; Vanderburg, Andrew; Weiss, Lauren; Bonomo, Aldo S.; Bouchy, Francois; Buchhave, Lars A.; Coffinet, Adrien; Damasso, Mario; Dumusque, Xavier; Lovis, Christophe; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Pepe, Francesco; Phillips, David; Piotto, Giampaolo; Rice, Ken; Sasselov, Dimitar; Segransan, Damien; Sozzetti, Alessandro; Udry, Stephane; Watson, Chris (2019-02-13) - Journal article
      K2-291 is a solar-type star with a radius of R-* = 0.899 +/- 0.034 R-circle dot and mass of M-* = 0.934 +/- 0.038 M-circle dot. From the K2 C13 data, we found one super-Earth planet (R-p = 1.589(-0.072)(+0.095)R(circle ...
    • The Kepler-19 system : a thick-envelope super-Earth with two Neptune-mass companions characterized using radial velocities and transit timing variations 

      Malavolta, Luca; Borsato, Luca; Granata, Valentina; Piotto, Giampaolo; Lopez, Eric; Vanderburg, Andrew; Figueira, Pedro; Mortier, Annelies; Nascimbeni, Valerio; Affer, Laura; Bonomo, Aldo S.; Bouchy, Francois; Buchhave, Lars A.; Charbonneau, David; Collier Cameron, Andrew; Cosentino, Rosario; Dressing, Courtney D.; Dumusque, Xavier; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Haywood, Raphaëlle D.; Johnson, John Asher; Latham, David W.; Lopez-Morales, Mercedes; Lovis, Christophe; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Motalebi, Fatemeh; Pepe, Francesco; Phillips, David F.; Pollacco, Don; Queloz, Didier; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Udry, Stéphane; Watson, Chris (2017-04-24) - Journal article
      We report a detailed characterization of the Kepler-19 system. This star was previously known to host a transiting planet with a period of 9.29 days, a radius of 2.2 R⊕ and an upper limit on the mass of 20 M⊕. The presence ...
    • Kepler-21b : a rocky planet around a V = 8.25 mag star 

      Lopez-Morales, Mercedes; Haywood, Raphaelle D.; Coughlin, Jeffrey L.; Zeng, Li; Buchhave, Lars A.; Giles, Helen A. C.; Affer, Laura; Bonomo, Aldo S.; Charbonneau, David; Collier Cameron, Andrew; Cosentino, Rosario; Dressing, Courtney D.; Dumusque, Xavier; Figueira, Pedro; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Johnson, John Asher; Latham, David W.; Lopez, Eric D.; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Mortier, Annelies; Motalebi, Fatemeh; Nascimbeni, Valerio; Pepe, Francesco; Phillips, David F.; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Rice, Ken; Sasselov, Dimitar; Segransan, Damien; Sozzetti, Alessandro; Udry, Stephane; Vanderburg, Andrew; Watson, Chris (2016-12-02) - Journal article
      HD 179070, aka Kepler-21, is a V = 8.25 F6IV star and the brightest exoplanet host discovered by Kepler. An early detailed analysis by Howell et al. (2012) of the first thirteen months (Q0 - Q5) of Kepler light curves ...
    • The Kepler-454 system : A small, not-rocky inner planet, a Jovian world, and a distant companion 

      Gettel, Sara; Charbonneau, David; Dressing, Courtney D.; Buchhave, Lars A.; Dumusque, Xavier; Vanderburg, Andrew; Bonomo, Aldo S.; Malavolta, Luca; Pepe, Francesco; Cameron, Andrew Collier; Latham, David W.; Udry, Stephane; Marcy, Geoffrey W.; Isaacson, Howard; Howard, Andrew W.; Davies, Guy R.; Aguirre, Victor Silva; Kjeldsen, Hans; Bedding, Timothy R.; Lopez, Eric; Affer, Laura; Cosentino, Rosario; Figueira, Pedro; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Johnson, John Asher; Lopez-Morales, Mercedes; Lovis, Christophe; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Motalebi, Fatemeh; Phillips, David F.; Piotto, Giampaolo; Queloz, Didier; Rice, Ken; Sasselov, Dimitar; Segransan, Damien; Sozzetti, Alessandro; Watson, Chris; Basu, Sarbani; Campante, Tiago L.; Christensen-Dalsgaard, Jorgen; Kawaler, Steven D.; Metcalfe, Travis S.; Handberg, Rasmus; Lund, Mikkel N.; Lundkvist, Mia S.; Huber, Daniel; Chaplin, William J. (2016-01-14) - Journal article
      Kepler-454 (KOI-273) is a relatively bright (V = 11.69 mag), Sun-like starthat hosts a transiting planet candidate in a 10.6 d orbit. From spectroscopy, we estimate the stellar temperature to be 5687 +/- 50 K, its metallicity ...
    • 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 ...
    • The orbit and mass of the third planet in the Kepler-56 system 

      Otor, Oderah Justin; Montet, Benjamin T.; Johnson, John Asher; Charbonneau, David; Collier Cameron, Andrew; Howard, Andrew W.; Isaacson, Howard; Latham, David W.; Lopez-Morales, Mercedes; Lovis, Christophe; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Pepe, Francesco; Piotto, Giampaolo; Phillips, David F.; Queloz, Didier; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Udry, Stéphane; Watson, Chris (2016-12-01) - Journal article
      While the vast majority of multiple-planet systems have orbital angular momentum axes that align with the spin axis of their host star, Kepler-56 is an exception: its two transiting planets are coplanar yet misaligned by ...
    • Precise masses in the WASP-47 system 

      Vanderburg, Andrew; Becker, Juliette C.; Buchhave, Lars A.; Mortier, Annelies; Lopez, Eric; Malavolta, Luca; Haywood, Raphaëlle D.; Latham, David W.; Charbonneau, David; López-Morales, Mercedes; Adams, Fred C.; Bonomo, Aldo Stefano; Bouchy, François; Collier Cameron, Andrew; Cosentino, Rosario; Di Fabrizio, Luca; Dumusque, Xavier; Fiorenzano, Aldo; Harutyunyan, Avet; Johnson, John Asher; Lorenzi, Vania; Lovis, Christophe; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Pedani, Marco; Pepe, Francesco; Piotto, Giampaolo; Phillips, David; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Udry, Stéphane; Watson, Chris (2017-11-17) - Journal article
      We present precise radial velocity observations of WASP-47, a star known to host a hot Jupiter, a distant Jovian companion, and, uniquely, two additional transiting planets in short-period orbits: a super-Earth in a ≈19 ...
    • Three's company : an additional non-transiting super-Earth in the bright HD 3167 system, and masses for all three planets 

      Christiansen, Jessie L.; Vanderburg, Andrew; Burt, Jennifer; Fulton, B. J.; Batygin, Konstantin; Benneke, Björn; Brewer, John M.; Charbonneau, David; Ciardi, David R.; Collier Cameron, Andrew; Coughlin, Jeffrey L.; Crossfield, Ian J. M.; Dressing, Courtney; Greene, Thomas P.; Howard, Andrew W.; Latham, David W.; Molinari, Emilio; Mortier, Annelies; Mullally, Fergal; Pepe, Francesco; Rice, Ken; Sinukoff, Evan; Sozzetti, Alessandro; Thompson, Susan E.; Udry, Stéphane; Vogt, Steven S.; Barman, Travis S.; Batalha, Natasha E.; Bouchy, Francois; Buchhave, Lars A.; Butler, R. Paul; Cosentino, Rosario; Dupuy, Trent J.; Ehrenreich, David; Fiorenzano, Aldo; Hansen, Brad M. S.; Henning, Thomas; Hirsch, Lea; Holden, Bradford P.; Isaacson, Howard T.; Johnson, John A.; Knutson, Heather A.; Kosiarek, Molly; López-Morales, Mercedes; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giuseppina; Motalebi, Fatemeh; Petigura, Erik; Phillips, David F.; Piotto, Giampaolo; Rogers, Leslie A.; Sasselov, Dimitar; Schlieder, Joshua E.; Ségransan, Damien; Watson, Christopher A.; Weiss, Lauren M. (2017-08-31) - Journal article
      HD 3167 is a bright (V = 8.9), nearby K0 star observed by the NASA K2 mission (EPIC 220383386), hosting two small, short-period transiting planets. Here we present the results of a multi-site, multi-instrument radial ...
    • Two massive rocky planets transiting a K-dwarf 6.5 parsecs away 

      Gillon, Michaël; Demory, Brice-Olivier; Van Grootel, Valérie; Motalebi, Fatemeh; Lovis, Christophe; Cameron, Andrew Collier; Charbonneau, David; Latham, David; Molinari, Emilio; Pepe, Francesco A.; Ségransan, Damien; Sasselov, Dimitar; Udry, Stéphane; Mayor, Michel; Micela, Giuseppina; Piotto, Giampaolo; Sozzetti, Alessandro (2017-03-02) - Journal article
      HD 219134 is a K-dwarf star at a distance of 6.5 parsecs around which several low-mass planets were recently discovered1,2. The Spitzer Space Telescope detected a transit of the innermost of these planets, HD 219134 b, ...
    • An ultra-short period rocky super-Earth with a secondary eclipse and a Neptune-like companion around K2-141 

      Malavolta, Luca; Mayo, Andrew W.; Louden, Tom; Rajpaul, Vinesh M.; Bonomo, Aldo S.; Buchhave, Lars A.; Kreidberg, Laura; Kristiansen, Martti H.; Lopez-Morales, Mercedes; Mortier, Annelies; Vanderburg, Andrew; Coffinet, Adrien; Ehrenreich, David; Lovis, Christophe; Bouchy, Francois; Charbonneau, David; Ciardi, David R.; Collier Cameron, Andrew; Cosentino, Rosario; Crossfield, Ian J. M.; Damasso, Mario; Dressing, Courtney D.; Dumusque, Xavier; Everett, Mark E.; Figueira, Pedro; Fiorenzano, Aldo F. M.; Gonzales, Erica J.; Haywood, Raphaëlle D.; Harutyunyan, Avet; Hirsch, Lea; Howell, Steve B.; Johnson, John Asher; Latham, David W.; Lopez, Eric; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Nascimbeni, Valerio; Pepe, Francesco; Phillips, David F.; Piotto, Giampaolo; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Udry, Stéphane; Watson, Chris (2018-02-09) - Journal article
      Ultra-short period (USP) planets are a class of low mass planets with periods shorter than one day. Their origin is still unknown, with photo-evaporation of mini-Neptunes and in-situ formation being the most credited ...