Now showing items 1-19 of 19

    • 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 ...
    • The BEBOP radial-velocity survey for circumbinary planets I. Eight years of CORALIE observations of 47 single-line eclipsing binaries and abundance constraints on the masses of circumbinary planets 

      Martin, David V.; Triaud, Amaury H. M. J.; Udry, Stéphane; Marmier, Maxime; Maxted, Pierre F. L.; Collier Cameron, Andrew; Hellier, Coel; Pepe, Francesco; Pollacco, Don; Ségransan, Damien; West, Richard (2019-04-11) - Journal article
      We introduce the BEBOP radial velocity survey for circumbinary planets. We initiated this survey using the CORALIE spectrograph on the Swiss Euler Telescope at La Silla, Chile. An intensive four year observing campaign ...
    • 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 ...
    • The EBLM project : III. A Saturn-size low-mass star at the hydrogen-burning limit 

      Von Boetticher, Alexander; Triaud, Amaury H.M.J.; Queloz, DIdier; Gill, Sam; Lendl, Monika; Delrez, Laetitia; Anderson, David R.; Cameron, Andrew Collier; Faedi, Francesca; Gillon, Michaël; Chew, Yilen Gómez Maqueo; Hebb, Leslie; Hellier, Coel; Jehin, Emmanuël; Maxted, Pierre F.L.; Martin, David V.; Pepe, Francesco; Pollacco, Don; Ségransan, Damien; Smalley, Barry; Udry, Stéphane; West, Richard (2017-08-01) - Journal article
      We report the discovery of an eclipsing binary system with mass-ratio q ∼ 0.07. After identifying a periodic photometric signal received by WASP, we obtained CORALIE spectroscopic radial velocities and follow-up light ...
    • The EBLM Project : IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot-Jupiters 

      Triaud, Amaury H. M. J.; Martin, David V.; Ségransan, Damien; Smalley, Barry; Maxted, Pierre F. L.; Anderson, David R.; Bouchy, François; Collier Cameron, Andrew; Faedi, Francesca; Gómez Maqueo Chew, Yilen; Hebb, Leslie; Hellier, Coel; Marmier, Maxime; Pepe, Francesco; Pollacco, Don; Queloz, Didier; Udry, Stéphane; West, Richard (2017-12) - Journal article
      We present 2271 radial velocity measurements taken on 118 single-line binary stars, taken over eight years with the CORALIE spectrograph. The binaries consist of F/G/K primaries and M dwarf secondaries. They were initially ...
    • The EBLM Project. V. Physical properties of ten fully convective, very-low-mass stars 

      von Boetticher, Alexander; Triaud, Amaury H. M. J.; Queloz, Didier; Gill, Sam; Maxted, Pierre F. L.; Almleaky, Yaseen; Anderson, David R.; Bouchy, Francois; Burdanov, Artem; Cameron, Andrew Collier; Delrez, Laetitia; Ducrot, Elsa; Faedi, Francesca; Gillon, Michaël; Chew, Yilen Gómez Maqueo; Hebb, Leslie; Hellier, Coel; Jehin, Emmanuël; Lendl, Monika; Marmier, Maxime; Martin, David V.; McCormac, James; Pepe, Francesco; Pollacco, Don; Ségransan, Damien; Smalley, Barry; Thompson, Samantha; Turner, Oliver; Udry, Stéphane; Grootel, Valérie Van; West, Richard (2019-06-04) - Journal article
      Measurements of the physical properties of stars at the lower end of the main sequence are scarce. In this context we report masses, radii and surface gravities of ten very-low-mass stars in eclipsing binary systems, with ...
    • 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 ...
    • 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 ...
    • WASP-128b : a transiting brown dwarf in the dynamical-tide regime 

      Hodžić, Vedad; Triaud, Amaury H. M. J.; Anderson, David R.; Bouchy, François; Cameron, Andrew Collier; Delrez, Laetitia; Gillon, Michaël; Hellier, Coel; Jehin, Emmanuël; Lendl, Monika; Maxted, Pierre F. L.; Pepe, Francesco; Pollacco, Don; Queloz, Didier; Ségransan, Damien; Smalley, Barry; Udry, Stéphane; West, Richard (2018-12-21) - Journal article
      Massive companions in close orbits around G dwarfs are thought to undergo rapid orbital decay due to runaway tidal dissipation. We report here the discovery of WASP-128b, a brown dwarf discovered by the WASP survey transiting ...