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Browsing by Author "Charbonneau, D."

Browsing by Author "Charbonneau, D."

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  • Characterization of the planetary system Kepler-101 with HARPS-N. A hot super-Neptune with an Earth-sized low-mass companion 
    Bonomo, A. S.; Sozzetti, A.; Lovis, C.; Malavolta, L.; Rice, K.; Buchhave, L. A.; Sasselov, D.; Cameron, A. C.; Latham, D. W.; Molinari, E.; Pepe, F.; Udry, S.; Affer, L.; Charbonneau, D.; Cosentino, R.; Dressing, C. D.; Dumusque, X.; Figueira, P.; Fiorenzano, A. F. M.; Gettel, S.; Harutyunyan, A.; Haywood, R. D.; Horne, K.; López-Morales, Mercedes; Mayor, M.; Micela, G.; Motalebi, F.; Nascimbeni, V.; Phillips, D. F.; Piotto, G.; Pollacco, D.; Queloz, D.; Ségransan, D.; Szentgyorgyi, Andrew H.; Watson, C. (2014)
    We characterize the planetary system Kepler-101 by performing a combined differential evolution Markov chain Monte Carlo analysis of Kepler data and forty radial velocities obtained with the HARPS-N spectrograph. This ...
  • Cold Jupiters and improved masses in 38 Kepler and K2 small planet systems from 3661 HARPS-N radial velocities. No excess of cold Jupiters in small planet systems 
    Bonomo, A. S.; Dumusque, X.; Massa, A.; Mortier, A.; Bongiolatti, R.; Malavolta, L.; Sozzetti, A.; Buchhave, L. A.; Damasso, M.; Haywood, R. D.; Morbidelli, A.; Latham, D. W.; Molinari, E.; Pepe, F.; Poretti, E.; Udry, S.; Affer, L.; Boschin, W.; Charbonneau, D.; Cosentino, R.; Cretignier, M.; Ghedina, A.; Lega, E.; López-Morales, M.; Margini, M.; Martínez Fiorenzano, A. F.; Mayor, M.; Micela, G.; Pedani, M.; Pinamonti, M.; Rice, K.; Sasselov, D.; Tronsgaard, R.; Vanderburg, A. (2023)
    The exoplanet population characterized by relatively short orbital periods (P <sub>-2.9</sub><sup>+7.7</sup>% for cold Jupiters with 0.3-13 M<sub>Jup</sub> and 1-10 AU, which is lower but still compatible at 1.3s with the ...
  • Detailed stellar activity analysis and modelling of GJ 832. Reassessment of the putative habitable zone planet GJ 832c 
    Gorrini, P.; Astudillo-Defru, N.; Dreizler, S.; Damasso, M.; Díaz, R. F.; Bonfils, X.; Jeffers, S. V.; Barnes, J. R.; Del Sordo, F.; Almenara, J. -M; Artigau, E.; Bouchy, F.; Charbonneau, D.; Delfosse, X.; Doyon, R.; Figueira, P.; Forveille, T.; Haswell, C. A.; López-González, M. J.; Melo, C.; Mennickent, R. E.; Gaisné, G.; Morales Morales, N.; Murgas, F.; Pepe, F.; Rodríguez, E.; Santos, N. C.; Tal-Or, L.; Tsapras, Y.; Udry, S. (2022)
    Context. Gliese-832 (GJ 832) is an M2V star hosting a massive planet on a decade-long orbit, GJ 832b, discovered by radial velocity (RV). Later, a super Earth or mini-Neptune orbiting within the stellar habitable zone was ...
  • Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey 
    Benni, P.; Burdanov, A. Y.; Krushinsky, V. V.; Bonfanti, A.; Hébrard, G.; Almenara, J. M.; Dalal, S.; Demangeon, O. D. S.; Tsantaki, M.; Pepper, J.; Stassun, K. G.; Vanderburg, A.; Belinski, A.; Kashaev, F.; Barkaoui, K.; Kim, T.; Kang, W.; Antonyuk, K.; Dyachenko, V. V.; Rastegaev, D. A.; Beskakotov, A.; Mitrofanova, A. A.; Pozuelos, F. J.; Kuznetsov, E. D.; Popov, A.; Kiefer, F.; Wilson, P. A.; Ricker, G.; Vanderspek, R.; Latham, D. W.; Seager, S.; Jenkins, J. M.; Sokov, E.; Sokova, I.; Marchini, A.; Papini, R.; Salvaggio, F.; Banfi, M.; Bastürk, Ö.; Torun, S.; Yalçinkaya, S.; Ivanov, K.; Valyavin, G.; Jehin, E.; Gillon, M.; Pakštiene, E.; Hentunen, V. -P; Shadick, S.; Bretton, M.; Wünsche, A.; Garlitz, J.; Jongen, Y.; Molina, D.; Girardin, E.; Grau Horta, F.; Naves, R.; Benkhaldoun, Z.; Joner, M. D.; Spencer, M.; Bieryla, A.; Stevens, D. J.; Jensen, E. L. N.; Collins, K. A.; Charbonneau, D.; Quintana, E. V.; Mullally, S. E.; Henze, C. E. (2021)
    We announce the discovery of GPX-1 b, a transiting brown dwarf with a mass of 19.7 ± 1.6 M<SUB>Jup</SUB> and a radius of 1.47 ± 0.10 R<SUB>Jup</SUB>, the first substellar object discovered by the Galactic Plane eXoplanet ...
  • Eyes on K2-3: A system of three likely sub-Neptunes characterized with HARPS-N and HARPS 
    Damasso, M.; Bonomo, A. S.; Astudillo-Defru, N.; Bonfils, X.; Malavolta, L.; Sozzetti, A.; Lopez, E.; Zeng, L.; Haywood, R. D.; Irwin, J. M.; Mortier, A.; Vanderburg, Andrew; Maldonado, J.; Lanza, A. F.; Affer, L.; Almenara, J. -M; Benatti, S.; Biazzo, K.; Bignamini, A.; Borsa, F.; Bouchy, F.; Buchhave, L. A.; Cameron, A. C.; Carleo, I.; Charbonneau, D.; Claudi, R.; Cosentino, R.; Covino, E.; Delfosse, X.; Desidera, S.; Di Fabrizio, L.; Dressing, C.; Esposito, M.; Fares, R.; Figueira, P.; Fiorenzano, A. F. M.; Forveille, T.; Giacobbe, P.; González-Álvarez, E.; Gratton, R.; Harutyunyan, A.; Johnson, J. Asher; Latham, D. W.; Leto, G.; Lopez-Morales, M.; Lovis, C.; Maggio, A.; Mancini, L.; Masiero, S.; Mayor, M.; Micela, G.; Molinari, E.; Motalebi, F.; Murgas, F.; Nascimbeni, V.; Pagano, I.; Pepe, F.; Phillips, D. F.; Piotto, G.; Poretti, E.; Rainer, M.; Rice, K.; Santos, N. C.; Sasselov, D.; Scandariato, G.; Ségransan, D.; Smareglia, R.; Udry, S.; Watson, C.; Wünsche, A. (2018)
    Context. M-dwarf stars are promising targets for identifying and characterizing potentially habitable planets. K2-3 is a nearby (45 pc), early-type M dwarf hosting three small transiting planets, the outermost of which ...
  • The HARPS-N Rocky Planet Search. I. HD 219134 b: A transiting rocky planet in a multi- planet system at 6.5 pc from the Sun 
    Motalebi, F.; Udry, S.; Gillon, M.; Lovis, C.; Ségransan, D.; Buchhave, L. A.; Demory, B. O.; Malavolta, L.; Dressing, C. D.; Sasselov, D.; Rice, K.; Charbonneau, D.; Collier Cameron, A.; Latham, D.; Molinari, E.; Pepe, F.; Affer, L.; Bonomo, A. S.; Cosentino, R.; Dumusque, X.; Figueira, P.; Fiorenzano, A. F. M.; Gettel, S.; Harutyunyan, A.; Haywood, R. D.; Johnson, J.; Lopez, E.; López-Morales, Mercedes; Mayor, M.; Micela, G.; Mortier, A.; Nascimbeni, V.; Philips, D.; Piotto, G.; Pollacco, D.; Queloz, D.; Sozzetti, A.; Vanderburg, Andrew; Watson, C. A. (2015)
    We know now from radial velocity surveys and transit space missions that planets only a few times more massive than our Earth are frequent around solar-type stars. Fundamental questions about their formation history, ...
  • The HD 260655 system: Two rocky worlds transiting a bright M dwarf at 10 pc 
    Luque, R.; Fulton, B. J.; Kunimoto, M.; Amado, P. J.; Gorrini, P.; Dreizler, S.; Hellier, C.; Henry, G. W.; Molaverdikhani, K.; Morello, G.; Peña-Moñino, L.; Pérez-Torres, M.; Pozuelos, F. J.; Shan, Y.; Anglada-Escudé, G.; Béjar, V. J. S.; Bergond, G.; Boyle, A. W.; Caballero, J. A.; Charbonneau, D.; Ciardi, D. R.; Dufoer, S.; Espinoza, N.; Everett, M.; Fischer, D.; Hatzes, A. P.; Henning, Th; Hesse, K.; Howard, A. W.; Howell, S. B.; Isaacson, H.; Jeffers, S. V.; Jenkins, J. M.; Kane, S. R.; Kemmer, J.; Khalafinejad, S.; Kidwell, R. C.; Kossakowski, D.; Latham, D. W.; Lillo-Box, J.; Lissauer, J. J.; Montes, D.; Orell-Miquel, J.; Pallé, E.; Pollacco, D.; Quirrenbach, A.; Reffert, S.; Reiners, A.; Ribas, I.; Ricker, G. R.; Rogers, L. A.; Sanz-Forcada, J.; Schlecker, M.; Schweitzer, A.; Seager, S.; Shporer, A.; Stassun, K. G.; Stock, S.; Tal-Or, L.; Ting, E. B.; Trifonov, T.; Vanaverbeke, S.; Vanderspek, R.; Villaseñor, J.; Winn, J. N.; Winters, J. G.; Zapatero Osorio, M. R. (2022)
    We report the discovery of a multiplanetary system transiting the M0 V dwarf HD 260655 (GJ 239, TOI-4599). The system consists of at least two transiting planets, namely HD 260655 b, with a period of 2.77 d, a radius of ...
  • K2-110 b: a massive mini-Neptune exoplanet 
    Osborn, H. P.; Santerne, A.; Barros, S. C. C.; Santos, N. C.; Dumusque, X.; Malavolta, L.; Armstrong, D. J.; Hojjatpanah, S.; Demangeon, O.; Adibekyan, V.; Almenara, J. -M; Barrado, D.; Bayliss, D.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Cameron, A. C.; Charbonneau, D.; Deleuil, M.; Delgado Mena, E.; Díaz, R. F.; Hébrard, G.; Kirk, J.; King, G. W.; Lam, K. W. F.; Latham, D.; Lillo-Box, J.; Louden, T. M.; Lovis, C.; Marmier, M.; McCormac, J.; Molinari, E.; Pepe, F.; Pollacco, D.; Sousa, S. G.; Udry, S.; Walker, S. R. (2017)
    We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9, K2-110 is particularly ...
  • A multi-planetary system orbiting the early-M dwarf TOI-1238 
    González-�lvarez, E.; Zapatero Osorio, M. R.; Sanz-Forcada, J.; Caballero, J. A.; Reffert, S.; Béjar, V. J. S.; Hatzes, A. P.; Herrero, E.; Jeffers, S. V.; Kemmer, J.; López-González, M. J.; Luque, R.; Molaverdikhani, K.; Morello, G.; Nagel, E.; Quirrenbach, A.; Rodríguez, E.; Rodríguez-López, C.; Schlecker, M.; Schweitzer, A.; Stock, S.; Passegger, V. M.; Trifonov, T.; Amado, P. J.; Baker, D.; Boyd, P. T.; Cadieux, C.; Charbonneau, D.; Collins, K. A.; Doyon, R.; Dreizler, S.; Espinoza, N.; Fűrész, G.; Furlan, E.; Hesse, K.; Howell, S. B.; Jenkins, J. M.; Kidwell, R. C.; Latham, D. W.; McLeod, K. K.; Montes, D.; Morales, J. C.; O'Dwyer, T.; Pallé, E.; Pedraz, S.; Reiners, A.; Ribas, I.; Quinn, S. N.; Schnaible, C.; Seager, S.; Skinner, B.; Smith, J. C.; Schwarz, R. P.; Shporer, A.; Vanderspek, R.; Winn, J. N. (2022)
    Context. The number of super-Earth and Earth-mass planet discoveries has increased significantly in the last two decades thanks to the Doppler radial velocity and planetary transit observing techniques. Either technique ...
  • Results from the 2014 November 15th Multi-chord Stellar Occultation by the TNO (229762) 2007 UK126 
    Benedetti-Rossi, G.; Sicardy, B.; Buie, M. W.; Ortiz, J. L.; Vieira-Martins, R.; Keller, J. M.; Braga-Ribas, F.; Camargo, J. I. B.; Assafin, M.; Morales, N.; Duffard, R.; Dias-Oliveira, A.; Santos-Sanz, P.; Desmars, J.; Gomes-Júnior, A. R.; Leiva, R.; Bardecker, J.; Bean, J. K., Jr.; Olsen, A. M.; Ruby, D. W.; Sumner, R.; Thirouin, A.; Gómez-Muñoz, M. A.; Gutierrez, L.; Wasserman, L.; Charbonneau, D.; Irwin, J.; Levine, S.; Skiff, B. (2016)
    We present results derived from the first multi-chord stellar occultation by the trans-Neptunian object (229762) 2007 UK<SUB>126</SUB>, observed on 2014 November 15. The event was observed by the Research and Education ...
  • A review of planetary systems around HD 99492, HD 147379, and HD 190007 with HARPS-N 
    Stalport, M.; Cretignier, M.; Udry, S.; John, A. Anna; Wilson, T. G.; Delisle, J. -B; Bonomo, A. S.; Buchhave, L. A.; Charbonneau, D.; Dalal, S.; Damasso, M.; Di Fabrizio, L.; Dumusque, X.; Fiorenzano, A.; Harutyunyan, A.; Haywood, R. D.; Latham, D. W.; López-Morales, M.; Lorenzi, V.; Lovis, C.; Malavolta, L.; Molinari, E.; Mortier, A.; Pedani, M.; Pepe, F.; Pinamonti, M.; Poretti, E.; Rice, K.; Sozzetti, A. (2023)
    Context. The Rocky Planet Search (RPS) program is dedicated to a blind radial velocity (RV) search of planets around bright stars in the northern hemisphere, using the high-resolution echelle spectrograph HARPS-N installed ...
  • A review of planetary systems around HD 99492, HD 147379, and HD 190007 with HARPS-N 
    Stalport, M.; Cretignier, M.; Udry, S.; John, A. Anna; Wilson, T. G.; Delisle, J. -B; Bonomo, A. S.; Buchhave, L. A.; Charbonneau, D.; Dalal, S.; Damasso, M.; Di Fabrizio, L.; Dumusque, X.; Fiorenzano, A.; Harutyunyan, A.; Haywood, R. D.; Latham, D. W.; López-Morales, M.; Lorenzi, V.; Lovis, C.; Malavolta, L.; Molinari, E.; Mortier, A.; Pedani, M.; Pepe, F.; Pinamonti, M.; Poretti, E.; Rice, K.; Sozzetti, A. (2023)
    Context. The Rocky Planet Search (RPS) program is dedicated to a blind radial velocity (RV) search of planets around bright stars in the northern hemisphere, using the high-resolution echelle spectrograph HARPS-N installed ...
  • Simultaneous Multiwavelength Observations of Magnetic Activity in Ultracool Dwarfs. IV. The Active, Young Binary NLTT 33370 AB (= 2MASS J13142039+1320011) 
    Williams, P. K. G.; Berger, E.; Irwin, J.; Berta-Thompson, Z. K.; Charbonneau, D. (2015)
    We present multi-epoch simultaneous radio, optical, Ha, UV, and X-ray observations of the active, young, low-mass binary NLTT 33370 AB (blended spectral type M7e). This system is remarkable for its extreme levels of magnetic ...
  • TOI-1201 b: A mini-Neptune transiting a bright and moderately young M dwarf 
    Kossakowski, D.; Kemmer, J.; Bluhm, P.; Stock, S.; Caballero, J. A.; Béjar, V. J. S.; Guillén, C. Cardona; Lodieu, N.; Collins, Karen A.; Oshagh, M.; Schlecker, M.; Espinoza, N.; Pallé, E.; Henning, Th; Kreidberg, L.; Kürster, M.; Amado, P. J.; Anderson, D. R.; Morales, J. C.; Cartwright, S.; Charbonneau, D.; Chaturvedi, P.; Cifuentes, C.; Conti, D. M.; Cortés-Contreras, M.; Dreizler, S.; Galadí-Enríquez, D.; Guerra, P.; Hart, R.; Hellier, C.; Henze, C.; Herrero, E.; Jeffers, S. V.; Jenkins, J. M.; Jensen, E. L. N.; Kaminski, A.; Kielkopf, J. F.; Kunimoto, M.; Lafarga, M.; Latham, D. W.; Lillo-Box, J.; Luque, R.; Molaverdikhani, K.; Montes, D.; Morello, G.; Morgan, E. H.; Nowak, G.; Pavlov, A.; Perger, M.; Quintana, E. V.; Quirrenbach, A.; Reffert, S.; Reiners, A.; Ricker, G.; Ribas, I.; López, C. Rodríguez; Osorio, M. R. Zapatero; Seager, S.; Schöfer, P.; Schweitzer, A.; Trifonov, T.; Vanaverbeke, S.; Vanderspek, R.; West, R.; Winn, J.; Zechmeister, M. (2021)
    We present the discovery of a transiting mini-Neptune around TOI-1201, a relatively bright and moderately young early M dwarf (J ˜ 9.5 mag, ~600-800 Myr) in an equal-mass ~8 arcsecond-wide binary system, using data from ...
  • TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf 
    Schanche, N.; Pozuelos, F. J.; Günther, M. N.; Wells, R. D.; Burgasser, A. J.; Chinchilla, P.; Delrez, L.; Ducrot, E.; Garcia, L. J.; Gómez Maqueo Chew, Y.; Jofré, E.; Rackham, B. V.; Sebastian, D.; Stassun, K. G.; Stern, D.; Timmermans, M.; Barkaoui, K.; Belinski, A.; Benkhaldoun, Z.; Benz, W.; Bieryla, A.; Bouchy, F.; Burdanov, A.; Charbonneau, D.; Christiansen, J. L.; Collins, K. A.; Demory, B. -O; Dévora-Pajares, M.; de Wit, J.; Dragomir, D.; Dransfield, G.; Furlan, E.; Ghachoui, M.; Gillon, M.; Gnilka, C.; Gómez-Muñoz, M. A.; Guerrero, N.; Harris, M.; Heng, K.; Henze, C. E.; Hesse, K.; Howell, S. B.; Jehin, E.; Jenkins, J.; Jensen, E. L. N.; Kunimoto, M.; Latham, D. W.; Lester, K.; McLeod, K. K.; Mireles, I.; Murray, C. A.; Niraula, P.; Pedersen, P. P.; Queloz, D.; Quintana, E. V.; Ricker, G.; Rudat, A.; Sabin, L.; Safonov, B.; Schroffenegger, U.; Scott, N.; Seager, S.; Strakhov, I.; Triaud, A. H. M. J.; Vanderspek, R.; Vezie, M.; Winn, J. (2022)
    Context. Thanks to the relative ease of finding and characterizing small planets around M-dwarf stars, these objects have become cornerstones in the field of exoplanet studies. The current paucity of planets in long-period ...
  • TOI-3884 b: A rare 6-R<SUB>E</SUB> planet that transits a low-mass star with a giant and likely polar spot 
    Almenara, J. M.; Bonfils, X.; Forveille, T.; Astudillo-Defru, N.; Ciardi, D. R.; Schwarz, R. P.; Collins, K. A.; Cointepas, M.; Lund, M. B.; Bouchy, F.; Charbonneau, D.; Díaz, R. F.; Delfosse, X.; Kidwell, R. C.; Kunimoto, M.; Latham, D. W.; Lissauer, J. J.; Murgas, F.; Ricker, G.; Seager, S.; Vezie, M.; Watanabe, D. (2022)
    The Transiting Exoplanet Survey Satellite mission identified a deep and asymmetric transit-like signal with a periodicity of 4.5 days orbiting the M4 dwarf star TOI-3884. The signal has been confirmed by follow-up observations ...
  • Two sub-Neptunes around the M dwarf TOI-1470 
    González-Álvarez, E.; Zapatero Osorio, M. R.; Caballero, J. A.; Béjar, V. J. S.; Cifuentes, C.; Fukui, A.; Herrero, E.; Kawauchi, K.; Livingston, J. H.; López-González, M. J.; Morello, G.; Murgas, F.; Narita, N.; Pallé, E.; Passegger, V. M.; Rodríguez, E.; Rodríguez-López, C.; Sanz-Forcada, J.; Schweitzer, A.; Tabernero, H. M.; Quirrenbach, A.; Amado, P. J.; Charbonneau, D.; Ciardi, D. R.; Cikota, S.; Collins, K. A.; Conti, D. M.; Fausnaugh, M.; Hatzes, A. P.; Hedges, C.; Henning, Th; Jenkins, J. M.; Latham, D. W.; Massey, B.; Moldovan, D.; Montes, D.; Panahi, A.; Reiners, A.; Ribas, I.; Ricker, G. R.; Seager, S.; Shporer, A.; Srdoc, G.; Tenenbaum, P.; Vanderspek, R.; Winn, J. N.; Fukuda, I.; Ikoma, M.; Isogai, K.; Kawai, Y.; Mori, M.; Tamura, M.; Watanabe, N. (2023)
    Aims: A transiting planet candidate with a sub-Neptune radius orbiting the nearby (d = 51.9 ± 0.07 pc) M1.5 V star TOI-1470 with a period of ~2.5 d was announced by the NASA Transiting Exoplanet Survey Satellite (TESS), ...
  • Unsigned Magnetic Flux as a Proxy for Radial-velocity Variations in Sun-like Stars 
    Haywood, R. D.; Milbourne, Timothy W.; Saar, S. H.; Mortier, A.; Phillips, David F.; Charbonneau, D.; Cameron, A. Collier; Cegla, H. M.; Meunier, N.; Palumbo, M. L., III (2022)
    A major obstacle to detecting and characterizing long-period, low-mass exoplanets is the intrinsic radial-velocity (RV) variability of host stars. To better understand RV variability, we estimate disk-averaged RV variations ...

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