Now showing items 1-20 of 20

  • Characterization of small planets with Kepler and HARPS-N 

    Bonomo, A. S.; Sozzetti, A.; Lovis, C.; Malavolta, L.; Rice, K.; Dumusque, X.; Cameron, A. C.; Latham, D. W.; Molinari, E.; Pepe, F.; Udry, S. (EDP Sciences, 2015-09-23) - Conference item
    The high-accuracy and high-precision HARPS-N spectrograph has been installed at the italian Telescopio Nazionale Galileo in La Palma approximately two years and a half ago. Eighty nights per year of Guaranteed Time of ...
  • 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.; Lopez-Morales, M.; Mayor, M.; Micela, G.; Motalebi, F.; Nascimbeni, V.; Phillips, D.F.; Piotto, G.; Pollacco, D.; Queloz, D.; Ségransan, D.; Szentgyorgyi, A.; Watson, C. (2014-12) - Journal article
    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 ...
  • Chemical abundances and kinematics of 257 G-, K-type field giants. Setting a base for further analysis of giant-planet properties orbiting evolved stars 

    Adibekyan, V. Zh.; Benamati, L.; Santos, N. C.; Alves, S.; Lovis, C.; Udry, S.; Israelian, G.; Sousa, S. G.; Tsantaki, M.; Mortier, A.; Sozzetti, A.; De Medeiros, J. R. (2015-06-01) - Journal article
    We performed a uniform and detailed abundance analysis of 12 refractory elements (Na, Mg, Al, Si, Ca, Ti, Cr, Ni, Co, Sc, Mn, and V) for a sample of 257 G- and K-type evolved stars from the CORALIE planet search programme. ...
  • Disentangling planetary orbits from stellar activity in radial-velocity surveys 

    Haywood, R.D.; Cameron, A.C.; Queloz, D.; Barros, S.C.C.; Deleuil, M.; Fares, R.; Gillon, M.; Hatzes, A.; Lanza, A.F.; Lovis, C.; Moutou, C.; Pepe, F.; Pollacco, D.; Santerne, A.; Ségransan, D.; Unruh, Y. (2014-04-01) - Journal article
    The majority of extra-solar planets have been discovered (or confirmed after follow-up) through radial-velocity (RV) surveys. Using ground-based spectrographs such as High Accuracy Radial Velocity Planetary Search (HARPS) ...
  • EPIC 201702477b : a transiting brown dwarf from K2 in a 41 day orbit 

    Bayliss, D.; Hojjatpanah, S.; Santerne, A.; Dragomir, D.; Zhou, G.; Shporer, A.; Colón, K. D.; Almenara, J.; Armstrong, D. J.; Barrado, D.; Barros, S. C. C.; Bento, J.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Brown, T.; Cameron, A.; Cochran, W. D.; Demangeon, O.; Deleuil, M.; Díaz, R. F.; Fulton, B.; Horne, K.; Hébrard, G.; Lillo-Box, J.; Lovis, C.; Mawet, D.; Ngo, H.; Osborn, H.; Palle, E.; Petigura, E.; Pollacco, D.; Santos, N.; Sefako, R.; Siverd, R.; Sousa, S. G.; Tsantaki, M. (2016-12-20) - Journal article
    We report the discovery of EPIC 201702477b, a transiting brown dwarf in a long period (40.73691 ± 0.00037 day) and eccentric (e = 0.2281 ± 0.0026) orbit. This system was initially reported as a planetary candidate based ...
  • An extreme planetary system around HD 219828 : one long-period super Jupiter to a hot-Neptune host star 

    Santos, N. C.; Santerne, A.; Faria, J. P.; Rey, J.; Correia, A. C. M.; Laskar, J.; Udry, S.; Adibekyan, V.; Bouchy, F.; Delgado-Mena, E.; Melo, C.; Dumusque, X.; Hébrard, G.; Lovis, C.; Mayor, M.; Montalto, M.; Mortier, A.; Pepe, F.; Figueira, P.; Sahlmann, J.; Ségransan, D.; Sousa, S. G. (2016-08) - Journal article
    Context. With about 2000 extrasolar planets confirmed, the results show that planetary systems have a whole range of unexpected properties. This wide diversity provides fundamental clues to the processes of planet formation ...
  • The GAPS programme with HARPS-N at TNG I. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1 

    Covino, E.; Esposito, M.; Barbieri, M.; Mancini, L.; Nascimbeni, V.; Claudi, R.; Desidera, S.; Gratton, R.; Lanza, A. F.; Sozzetti, A.; Biazzo, K.; Affer, L.; Gandolfi, D.; Munari, U.; Pagano, I.; Bonomo, A. S.; Cameron, A. Collier; Hebrard, G.; Maggio, A.; Messina, S.; Micela, G.; Molinari, E.; Pepe, F.; Piotto, G.; Ribas, I.; Santos, N. C.; Southworth, J.; Shkolnik, E.; Triaud, A. H. M. J.; Bedin, L.; Benatti, S.; Boccato, C.; Bonavita, M.; Borsa, F.; Borsato, L.; Brown, D.; Carolo, E.; Ciceri, S.; Cosentino, R.; Damasso, M.; Faedi, F.; Martinez Fiorenzano, A. F.; Latham, D. W.; Lovis, C.; Mordasini, C.; Nikolov, N.; Poretti, E.; Rainer, M.; Rebolo Lopez, R.; Scandariato, G.; Silvotti, R.; Smareglia, R.; Alcala, J. M.; Cunial, A.; Di Fabrizio, L.; Di Mauro, M. P.; Giacobbe, P.; Granata, V.; Harutyunyan, A.; Knapic, C.; Lattanzi, M.; Leto, G.; Lodato, G.; Malavolta, L.; Marzari, F.; Molinaro, M.; Nardiello, D.; Pedani, M.; Prisinzano, L.; Turrini, D. (2013-06) - Journal article
    Context. Our understanding of the formation and evolution of planetary systems is still fragmentary because most of the current data provide limited information about the orbital structure and dynamics of these systems. ...
  • The HARPS search for southern extra-solar planets : XXXVIII. Bayesian re-analysis of three systems. New super-Earths, unconfirmed signals, and magnetic cycles 

    Díaz, R. F.; Ségransan, D.; Udry, S.; Lovis, C.; Pepe, F.; Dumusque, X.; Marmier, M.; Alonso, R.; Benz, W.; Bouchy, F.; Coffinet, A.; Cameron, Andrew Collier; Deleuil, M.; Figueira, P.; Gillon, M.; Lo Curto, G.; Mayor, M.; Mordasini, C.; Motalebi, F.; Moutou, C.; Pollacco, D.; Pompei, E.; Queloz, D.; Santos, N.; Wyttenbach, A. (2016-01) - Journal article
    We present the analysis of the entire HARPS observations of three stars that host planetary systems: HD 1461, HD 40307, and HD 204313. The data set spans eight years and contains more than 200 nightly averaged velocity ...
  • The HARPS search for southern extra-solar planets. XL. Searching for Neptunes around metal-poor stars 

    Faria, J. P.; Santos, N. C.; Figueira, P.; Mortier, A.; Dumusque, X.; Boisse, I.; Lo Curto, G.; Lovis, C.; Mayor, M.; Melo, C.; Pepe, F.; Queloz, D.; Santerne, A.; Ségransan, D.; Sousa, S. G.; Sozzetti, A.; Udry, S. (2016-05) - Journal article
    Context. As a probe of the metallicity of proto-planetary disks, stellar metallicity is an important ingredient for giant planet formation, most likely through its effect on the timescales in which rocky or icy planet cores ...
  • The HARPS search for southern extra-solar planets. XXXIX. HD175607 the most metal-poor G dwarf with an orbiting sub-Neptune 

    Mortier, Annelies; Faria, J. P.; Santos, N. C.; Rajpaul, V.; Figueira, P.; Boisse, I.; Cameron, Andrew Collier; Dumusque, X.; Lo Curto, G.; Lovis, C.; Mayor, M.; Melo, C.; Pepe, F.; Queloz, D.; Santerne, A.; Ségransan, D.; Sousa, S. G.; Sozzetti, A.; Udry, S. (2016-01) - Journal article
    Context. The presence of a small-mass planet (Mp < 0.1 MJup) seems, to date, not to depend on metallicity, however, theoretical simulations have shown that stars with subsolar metallicities may be favoured for harbouring ...
  • HARPS-N @ TNG, two year harvesting data : performances and results 

    Cosentino, R.; Lovis, C.; Pepe, F.; Cameron, A.C.; Latham, D.W.; Molinari, E.; Udry, S.; Bezawada, N.; Buchschacher, N.; Figueira, P.; Fleury, M.; Ghedina, A.; Glenday, A.G.; Gonzalez, M.; Guerra, J.; Henry, D.; Hughes, I.; Maire, C.; Motalebi, F.; Phillips, D.F. (SPIE, 2014) - Conference item
    The planet hunter HARPS-N[1], in operation at the Telescopio Nazionale Galileo (TNG)[13] from April 2012 is a highresolution spectrograph designed to achieve a very high radial velocity precision measurement thanks to an ...
  • The HARPS-N Rocky Planet Search : I. A transiting rocky planet in a 4 planet system at 6.5 pc from the Sun 

    Motalebi, F.; Udry, S.; Gillon, M.; Lovis, C.; Segransan, D.; Buchhave, L. A.; Demory, B. O.; Malavolta, L.; Dressing, C. D.; Sasselov, D.; Rice, K.; Charbonneau, D.; Cameron, Andrew Collier; 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, Raphaelle Dawn; Johnson, J.; Lopez, E.; Lopez-Morales, M.; Mayor, M.; Micela, G.; Mortier, A.; Nascimbeni, V.; Philips, D.; Piotto, G.; Pollacco, D.; Queloz, D.; Sozzetti, A.; Vanderburg, A.; Watson, C. A. (2015-12) - Journal article
    We present here the detection of a system of four low-mass planets around the bright (V=5.5) and close-by (6.5 pc) star HD219134. This is the first result of the Rocky Planet Search program with HARPS-N on the TNG in La ...
  • 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. (2017-08) - Journal article
    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 ...
  • The kepler-10 planetary system revisited by harps-n : A hot rocky world and a solid neptune-mass planet 

    Dumusque, X.; Bonomo, A.S.; Haywood, R.D.; Malavolta, L.; Ségransan, D.; Buchhave, L.A.; Cameron, A.C.; Latham, D.W.; Molinari, E.; Pepe, F.; Udry, S.; Charbonneau, D.; Cosentino, R.; Dressing, C.D.; Figueira, P.; Fiorenzano, A.F.M.; Gettel, S.; Harutyunyan, A.; Horne, K.; Lopez-Morales, M.; Lovis, C.; Mayor, M.; Micela, G.; Motalebi, F.; Nascimbeni, V.; Phillips, D.F.; Piotto, G.; Pollacco, D.; Queloz, D.; Rice, K.; Sasselov, D.; Sozzetti, A.; Szentgyorgyi, A.; Watson, C. (2014-07-10) - Journal article
    Kepler-10b was the first rocky planet detected by the Kepler satellite and confirmed with radial velocity follow-up observations from Keck-HIRES. The mass of the planet was measured with a precision of around 30%, which ...
  • Planets and stellar activity : hide and seek in the CoRoT-7 system 

    Haywood, R. D.; Cameron, A. Collier; Queloz, D.; Barros, S. C. C.; Deleuil, M.; Fares, R.; Gillon, M.; Lanza, A. F.; Lovis, C.; Moutou, C.; Pepe, F.; Pollacco, D.; Santerne, A.; Segransan, D.; Unruh, Y. C. (2014-09-21) - Journal article
    Since the discovery of the transiting super-Earth CoRoT-7b, several investigations have yielded different results for the number and masses of planets present in the system, mainly owing to the star's high level of activity. ...
  • Precise masses for the transiting planetary system HD 106315 with HARPS 

    Barros, S. C. C.; Gosselin, H.; Lillo-Box, J.; Bayliss, D.; Delgado Mena, E.; Brugger, B.; Santerne, A.; Armstrong, D. J.; Adibekyan, V.; Armstrong, J. D.; Barrado, D.; Bento, J.; Boisse, I.; Bonomo, A. S.; Bouchy, F.; Brown, D. J. A.; Cochran, W. D.; Collier Cameron, A.; Deleuil, M.; Demangeon, O.; Díaz, R. F.; Doyle, A.; Dumusque, X.; Ehrenreich, D.; Espinoza, N.; Faedi, F.; Faria, J. P.; Figueira, P.; Foxell, E.; Hébrard, G.; Hojjatpanah, S.; Jackman, J.; Lendl, M.; Ligi, R.; Lovis, C.; Melo, C.; Mousis, O.; Neal, J. J.; Osborn, H. P.; Pollacco, D.; Santos, N. C.; Sefako, R.; Shporer, A.; Sousa, S. G.; Triaud, A. H. M. J.; Udry, S.; Vigan, A.; Wyttenbach, A. (2017-08-09) - Journal article
    The multi-planetary system HD 106315 was recently found in K2 data . The planets have periods of Pb ∼ 9.55 and Pc ∼ 21.06 days, and radii of rb = 2.44 ± 0.17 and rc = 4.35 ± 0.23 R⊕. The brightness of the host star (V=9.0 ...
  • Rossiter–McLaughlin models and their effect on estimates of stellar rotation, illustrated using six WASP systems 

    Brown, D. J. A.; Triaud, A. H. M. J.; Doyle, A. P.; Gillon, M.; Lendl, M.; Anderson, D. R.; Collier Cameron, A.; Hébrard, G.; Hellier, C.; Lovis, C.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Smalley, B. (2017-01-01) - Journal article
    We present new measurements of the projected spin-orbit angle λ for six WASP hot Jupiters, four of which are new to the literature (WASP-61, -62, -76, and -78), and two of which are new analyses of previously measured ...
  • The Sun as a planet-host star : proxies from SDO images for HARPS radial-velocity variations 

    Haywood, Raphaelle Dawn; Cameron, Andrew Collier; Unruh, Y. C.; Lovis, C.; Lanza, A. F.; Llama, Joe; Deleuil, M.; Fares, Rim; Gillon, M.; Moutou, C.; Pepe, F.; Pollacco, D.; Queloz, D.; Segransan, D. (2016-04-21) - Journal article
    The Sun is the only star whose surface can be directly resolved at high resolution, and therefore constitutes an excellent test case to explore the physical origin of stellar radial-velocity (RV) variability. We present ...
  • WASP-80b : a gas giant transiting a cool dwarf 

    Triaud, A.H.M.J.; Anderson, D.R.; Collier Cameron, A.; Doyle, A.P.; Fumel, A.; Gillon, M.; Hellier, C.; Jehin, E.; Lendl, M.; Lovis, C.; Maxted, P.F.L.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Smith, A.M.S.; Udry, S.; West, R.G.; Wheatley, P.J. (2013-03) - Journal article
    We report the discovery of a planet transiting the star WASP-80 (1SWASP J201240.26-020838.2; 2MASS J20124017-0208391; TYC 5165-481-1; BPM 80815; V = 11.9, K = 8.4). Our analysis shows this is a 0.55 ± 0.04 Mjup, 0.95 ± ...
  • The well-aligned orbit of Wasp-84b : evidence for disk migration of a hot Jupiter 

    Anderson, D. R.; Triaud, A. H. M. J.; Turner, O. D.; Brown, D. J. A.; Clark, B. J. M.; Smalley, B.; Cameron, A. Collier; Doyle, A. P.; Gillon, M.; Hellier, C.; Lovis, C.; Maxted, P. F. L.; Pollacco, D.; Queloz, D.; Smith, A. M. S. (2015-02-10) - Journal article
    We report the sky-projected orbital obliquity (spin–orbit angle) of WASP-84 b, a 0.69 planet in an 8.52 day orbit around a G9V/K0V star, to be λ = −0.3 ± 1.7°. We obtain a true obliquity of ψ = 17.3 ± 7.7° from a measurement ...