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Browsing by Author "Charbonneau, David"

Browsing by Author "Charbonneau, David"

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  • A 1.55 R<sub>?</sub> habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole 
    Dransfield, Georgina; Timmermans, Mathilde; Triaud, Amaury H. M. J.; Dévora-Pajares, Martín; Aganze, Christian; Barkaoui, Khalid; Burgasser, Adam J.; Collins, Karen A.; Cointepas, Marion; Ducrot, Elsa; Günther, Maximilian N.; Howell, Steve B.; Murray, Catriona A.; Niraula, Prajwal; Rackham, Benjamin V.; Sebastian, Daniel; Stassun, Keivan G.; Zúñiga-Fernández, Sebastián; Almenara, José Manuel; Bonfils, Xavier; Bouchy, François; Burke, Christopher J.; Charbonneau, David; Christiansen, Jessie L.; Delrez, Laetitia; Gan, Tianjun; García, Lionel J.; Gillon, Michaël; Gómez Maqueo Chew, Yilen; Hesse, Katharine M.; Hooton, Matthew J.; Isopi, Giovanni; Jehin, Emmanuël; Jenkins, Jon M.; Latham, David W.; Mallia, Franco; Murgas, Felipe; Pedersen, Peter P.; Pozuelos, Francisco J.; Queloz, Didier; Rodriguez, David R.; Schanche, Nicole; Seager, Sara; Srdoc, Gregor; Stockdale, Chris; Twicken, Joseph D.; Vanderspek, Roland; Wells, Robert; Winn, Joshua N.; de Wit, Julien; Zapparata, Aldo (2024)
    A new generation of observatories is enabling detailed study of exoplanetary atmospheres and the diversity of alien climates, allowing us to seek evidence for extraterrestrial biological and geological processes. Now is ...
  • 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; López-Morales, Mercedes; Lopez, Eric; Lundkvist, Mia S.; Kjeldsen, Hans; Affer, Laura; Bonomo, Aldo S.; Charbonneau, David; Collier Cameron, Andrew; 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)
    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 11 Earth-mass, Long-period Sub-Neptune Orbiting a Sun-like Star 
    Mayo, Andrew W.; Rajpaul, Vinesh M.; Buchhave, Lars A.; Dressing, Courtney D.; Mortier, Annelies; Zeng, Li; Fortenbach, Charles D.; Aigrain, Suzanne; Bonomo, Aldo S.; Collier Cameron, Andrew; Charbonneau, David; Coffinet, Adrien; Cosentino, Rosario; Damasso, Mario; Dumusque, Xavier; Martinez Fiorenzano, A. F.; Haywood, Raphaëlle D.; Latham, David W.; López-Morales, Mercedes; Malavolta, Luca; Micela, Giusi; Molinari, Emilio; Pearce, Logan; Pepe, Francesco; Phillips, David; Piotto, Giampaolo; Poretti, Ennio; Rice, Ken; Sozzetti, Alessandro; Udry, Stephane (2019)
    Although several thousands of exoplanets have now been detected and characterized, observational biases have led to a paucity of long- period, low-mass exoplanets with measured masses and a corresponding lag in our ...
  • An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope 
    Haywood, Raphaëlle D.; Vanderburg, Andrew; Mortier, Annelies; Giles, Helen A. C.; López-Morales, Mercedes; Lopez, Eric D.; Malavolta, Luca; Charbonneau, David; Collier Cameron, Andrew; Coughlin, Jeffrey L.; Dressing, Courtney D.; Nava, Chantanelle; Latham, David W.; Dumusque, Xavier; Lovis, Christophe; Molinari, Emilio; Pepe, Francesco; Sozzetti, Alessandro; Udry, Stéphane; Bouchy, François; Johnson, John A.; Mayor, Michel; Micela, Giusi; Phillips, David; Piotto, Giampaolo; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Watson, Chris; Affer, Laura; Bonomo, Aldo S.; Buchhave, Lars A.; Ciardi, David R.; Fiorenzano, Aldo F.; Harutyunyan, Avet (2018)
    We present the confirmation of a small, moderately irradiated (F = 155 ± 7 F <SUB>&amp;oplus;</SUB>) Neptune with a substantial gas envelope in a P = 11.8728787 ± 0.0000085 day orbit about a quiet, Sun-like G0V star ...
  • Active Stars in the Spectroscopic Survey of Mid-to-late M Dwarfs within 15 pc 
    Pass, Emily K.; Winters, Jennifer G.; Charbonneau, David; Irwin, Jonathan M.; Medina, Amber A. (2023)
    We present results from the volume-complete spectroscopic survey of 0.1-0.3 M <sub>?</sub> M dwarfs within 15 pc. This work discusses the active sample without close binary companions, providing a comprehensive picture of ...
  • An Activity-Rotation Relationship and Kinematic Analysis of Nearby Mid-to-Late-Type M Dwarfs 
    West, Andrew A.; Weisenburger, Kolby L.; Irwin, Jonathan; Berta-Thompson, Zachory K.; Charbonneau, David; Dittmann, Jason; Pineda, J. Sebastian (2015)
    Using spectroscopic observations and photometric light curves of 238 nearby M dwarfs from the MEarth exoplanet transit survey, we examine the relationships between magnetic activity (quantified by Ha emission), rotation ...
  • The Ca II H and K Rotation-Activity Relation in 53 Mid-to-late-type M Dwarfs 
    Boudreaux, Thomas M.; Newton, Elisabeth R.; Mondrik, Nicholas; Charbonneau, David; Irwin, Jonathan (2022)
    In the canonical theory of stellar magnetic dynamo, the tachocline in partially convective stars serves to arrange small-scale fields, generated by stochastic movement of plasma into a coherent large-scale field. ...
  • Calibration of the MEarth Photometric System: Optical Magnitudes and Photometric Metallicity Estimates for 1802 Nearby M-Dwarfs 
    Dittmann, Jason A.; Irwin, Jonathan M.; Charbonneau, David; Newton, Elisabeth R. (2016)
    The MEarth Project is a photometric survey systematically searching the smallest stars near the Sun for transiting rocky planets. Since 2008, MEarth has taken approximately two million images of 1844 stars suspected to be ...
  • Carbon monoxide emission lines reveal an inverted atmosphere in the ultra hot Jupiter WASP-33 b consistent with an eastward hot spot 
    van Sluijs, Lennart; Birkby, Jayne L.; Lothringer, Joshua; Lee, Elspeth K. H.; Crossfield, Ian J. M.; Parmentier, Vivien; Brogi, Matteo; Kulesa, Craig; McCarthy, Don; Charbonneau, David (2023)
    We report the first detection of CO emission at high spectral resolution in the day-side infrared thermal spectrum of an exoplanet. These emission lines, found in the atmosphere of the transiting ultra hot Jupiter (UHJ) ...
  • 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; Collier Cameron, Andrew; Latham, David W.; Molinari, Emilio; Udry, Stéphane; 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; López-Morales, Mercedes; Mayor, Michel; Micela, Giusi; Moffat, Anthony F. J.; Pedani, Marco; Phillips, David F.; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Rice, Ken; Riddle, Reed; Rowe, Jason F.; Rucinski, Slavek M.; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Szentgyorgyi, Andrew H.; Watson, Chris; Weiss, Werner W. (2015)
    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 ...
  • Constraints on Planet Occurrence around Nearby Mid-to-late M Dwarfs from the MEARTH Project 
    Berta, Zachory K.; Irwin, Jonathan; Charbonneau, David (2013)
    The MEarth Project is a ground-based photometric survey intended to find planets transiting the closest and smallest main-sequence stars. In its first four years, MEarth discovered one transiting exoplanet, the 2.7 R ...
  • Constraints on the Spindown of Fully Convective M Dwarfs Using Wide Field Binaries 
    Pass, Emily K.; Charbonneau, David; Irwin, Jonathan M.; Winters, Jennifer G. (2022)
    M dwarfs remain active over longer timescales than their Sunlike counterparts, with potentially devastating implications for the atmospheres of their planets. However, the age at which fully convective M dwarfs transition ...
  • Discovery and Precise Characterization by the MEarth Project of LP 661-13, an Eclipsing Binary Consisting of Two Fully Convective Low-mass Stars 
    Dittmann, Jason A.; Irwin, Jonathan M.; Charbonneau, David; Berta-Thompson, Zachory K.; Newton, Elisabeth R.; Latham, David W.; Latham, Christian A.; Esquerdo, Gilbert; Berlind, Perry; Calkins, Michael L. (2017)
    We report the detection of stellar eclipses in the LP 661-13 system. We present the discovery and characterization of this system, including high-resolution spectroscopic radial velocities and a photometric solution spanning ...
  • A disintegrating minor planet transiting a white dwarf 
    Vanderburg, Andrew; Johnson, John Asher; Rappaport, Saul; Bieryla, Allyson; Irwin, Jonathan; Lewis, John Arban; Kipping, David; Brown, Warren R.; Dufour, Patrick; Ciardi, David R.; Angus, Ruth; Schaefer, Laura; Latham, David W.; Charbonneau, David; Beichman, Charles; Eastman, Jason; McCrady, Nate; Wittenmyer, Robert A.; Wright, Jason T. (2015)
    Most stars become white dwarfs after they have exhausted their nuclear fuel (the Sun will be one such). Between one-quarter and one-half of white dwarfs have elements heavier than helium in their atmospheres, even though ...
  • Dynamical Masses of Young M Dwarfs: Masses and Orbital Parameters of GJ 3305 AB, the Wide Binary Companion to the Imaged Exoplanet Host 51 Eri 
    Montet, Benjamin T.; Bowler, Brendan P.; Shkolnik, Evgenya L.; Deck, Katherine M.; Wang, Ji; Horch, Elliott P.; Liu, Michael C.; Hillenbrand, Lynne A.; Kraus, Adam L.; Charbonneau, David (2015)
    We combine new high resolution imaging and spectroscopy from Keck/NIRC2, Discovery Channel Telescope/DSSI, and Keck/HIRES with published astrometry and radial velocities to measure individual masses and orbital elements ...
  • An Earth-sized planet with an Earth-like density 
    Pepe, Francesco; Cameron, Andrew Collier; Latham, David W.; Molinari, Emilio; Udry, Stéphane; Bonomo, Aldo S.; Buchhave, Lars A.; Charbonneau, David; Cosentino, Rosario; Dressing, Courtney D.; Dumusque, Xavier; Figueira, Pedro; Fiorenzano, Aldo F. M.; Gettel, Sara; Harutyunyan, Avet; Haywood, Raphaëlle D.; Horne, Keith; López-Morales, Mercedes; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Motalebi, Fatemeh; Nascimbeni, Valerio; Phillips, David; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Szentgyorgyi, Andrew H.; Watson, Christopher A. (2013)
    Recent analyses of data from the NASA Kepler spacecraft have established that planets with radii within 25 per cent of the Earth&#39;s () are commonplace throughout the Galaxy, orbiting at least 16.5 per cent of Sun-like ...
  • An Empirical Calibration to Estimate Cool Dwarf Fundamental Parameters from H-band Spectra 
    Newton, Elisabeth R.; Charbonneau, David; Irwin, Jonathan; Mann, Andrew W. (2015)
    Interferometric radius measurements provide a direct probe of the fundamental parameters of M dwarfs. However, interferometry is within reach for only a limited sample of nearby, bright stars. We use interferometrically ...
  • Erratum: "An 11 Earth-mass, Long-period Sub-Neptune Orbiting a Sun-like Star" (2019, AJ, 158, 165) 
    Mayo, Andrew W.; Rajpaul, Vinesh M.; Buchhave, Lars A.; Dressing, Courtney D.; Mortier, Annelies; Zeng, Li; Fortenbach, Charles D.; Aigrain, Suzanne; Bonomo, Aldo S.; Collier Cameron, Andrew; Charbonneau, David; Coffinet, Adrien; Cosentino, Rosario; Damasso, Mario; Dumusque, Xavier; Martinez Fiorenzano, A. F.; Haywood, Raphaëlle D.; Latham, David W.; López-Morales, Mercedes; Malavolta, Luca; Micela, Giusi; Molinari, Emilio; Pearce, Logan; Pepe, Francesco; Phillips, David; Piotto, Giampaolo; Poretti, Ennio; Rice, Ken; Sozzetti, Alessandro; Udry, Stephane (2020)
  • Erratum: "The Transiting Exoplanet Survey Satellite: Simulations of Planet Detections and Astrophysical False Positives" (2015, ApJ, 809, 77) 
    Sullivan, Peter W.; Winn, Joshua N.; Berta-Thompson, Zachory K.; Charbonneau, David; Deming, Drake; Dressing, Courtney D.; Latham, David W.; Levine, Alan M.; McCullough, Peter R.; Morton, Timothy; Ricker, George R.; Vanderspek, Roland; Woods, Deborah (2017)
    Not Available
  • Exoplanet Characterization by Proxy: A Transiting 2.15 R ? Planet near the Habitable Zone of the Late K Dwarf Kepler-61 
    Ballard, Sarah; Charbonneau, David; Fressin, Francois; Torres, Guillermo; Irwin, Jonathan; Desert, Jean-Michel; Newton, Elisabeth; Mann, Andrew W.; Ciardi, David R.; Crepp, Justin R.; Henze, Christopher E.; Bryson, Stephen T.; Howell, Steven B.; Horch, Elliott P.; Everett, Mark E.; Shporer, Avi (2013)
    We present the validation and characterization of Kepler-61b: a 2.15 R <SUB>?</SUB> planet orbiting near the inner edge of the habitable zone of a low-mass star. Our characterization of the host star Kepler-61 is based ...

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