Browsing by Author "2c3ef708-0ae8-4593-b881-ca19edd71d43"

Now showing items 1-12 of 12

    • A low-mass planet candidate orbiting Proxima Centauri at a distance of 1.5 AU 
      Damasso, Mario; Sordo, Fabio del; Anglada-Escude, Guillem; Giacobbe, Paolo; Sozzetti, Alessandro; Morbidelli, Alessandro; Pojmanski, Grzegorz; Barbato, Doménico; Butler, R. Paul; Jones, Hugh R. A.; Hambsch, Franz-Josef; Jenkins, James; López González, María José; Morales, Nicolás; Peña Rojas, Pablo; Rodríguez López, Cristina; Rodríguez, Eloy; Amado, Pedro J.; Anglada, Guillem; Feng, Fabo; Gómez, José F. (Amer Assoc Advancement Science, 2020)
      Our nearest neighbor, Proxima Centauri, hosts a temperate terrestrial planet. We detected in radial velocities evidence of a possible second planet with minimum mass mc sin ic = 5.8 ± 1.9M⊕ and orbital period P c = 5.21 ...
    • A six planet system around the Star HD 34445 
      Vogt, Steven S.; Butler, R. Paul; Burt, Jennifer; Tuomi, Mikko; Laughlin, Gregory; Holden, Brad; Teske, Johanna K.; Shectman, Stephen A.; Crane, Jeffrey D.; Díaz, Matias; Thompson, Ian B.; Arriagada, Pamela; Keiser, Sandy (IOP Publishing Ltd., 2017)
      We present a new precision radial velocity (RV) data set that reveals a multi-planet system orbiting the G0V star HD 34445. Our 18-year span consists of 333 precision RV observations, 56 of which were previously published ...
    • A terrestrial planet candidate in a temperate orbit around Proxima Centauri 
      Anglada Escudé, Guillem; Amado, Pedro J.; Barnes, John; Berdinas, Zaira M.; Butler, R. Paul; Coleman, Gavin A. L.; Cueva, Ignacio de la; Dreizler, Stefan; Endl, Michael; Giesers, Benjamin; Jeffers, Sandra V.; Jenkins, James Stewart; Jones, Hugh R. A.; Kiraga, Marcin; Kuerster, Martin; López González, María J.; Marvin, Christopher J.; Morales, Nicolás; Morín, Julien; Nelson, Richard P.; Ortiz, José L.; Ofir, Aviv; Paardekooper, Sijme-Jam; Reiners, Ansgar; Rodríguez, Eloy; Rodríguez López, Cristina; Sarmiento, Luis F.; Strachan, John P.; Tsapras, Yiannis; Tuomi, Mikko; Zechmeister, Mathias (Nature, 2016)
      At a distance of 1.295 parsecs(1), the red dwarf Proxima Centauri (a Centauri C, GL 551, HIP 70890 or simply Proxima) is the Sun's closest stellar neighbour and one of the best-studied low-mass stars. It has an effective ...
    • Erratum: “Search for Nearby Earth Analogs. II. Detection of Five New Planets, Eight Planet Candidates, and ... 
      Feng, Fabo; Butler, R. Paul; Shectman, Stephen A.; Crane, Jeffrey D.; Vogt, Steve; Chambers, John; Jones, Hugh R. A.; Wang, Sharon Xuesong; Teske, Johanna K.; Burt, Jennifer; Díaz, Matías R.; Thompson, Ian B. (IOP Publishing, 2020)
    • Four new planets around giant stars and the mass-metallicity correlation of planet-hosting stars 
      Jones, M. L.; Jenkins, James Stewart; Brahm, R.; Wittenmyer, R. A.; Olivares, E. F.; Melo, C. H.; Rojo Rubke, Patricio; Jordan, A.; Drass, H.; Butler, R.; Wang, L. (EDP Sciences, 2016)
      Context. Exoplanet searches have revealed interesting correlations between the stellar properties and the occurrence rate of planets. In particular, different independent surveys have demonstrated that giant planets are ...
    • MagAO imaging of long-period objects (MILO). II. A puzzling white dwarfaround the sun-like star HD 11112 
      Rodigas, Timothy J.; Bergeron, P.; Simon, Amélie; Arriagada, Pamela; Faherty, Jacqueline K.; Anglada Escudé, Guillem; Mamajek, Eric E.; Weinberger, Alycia; Butler, R. Paul; Males, Jared R.; Morzinski, Katie; Close, Laird M.; Hinz, Philip M.; Bailey, Jeremy; Carter, Brad; Jenkins, James Stewart; Jones, Hugh; O’Toole, Simon; Tinney, C. G.; Wittenmyer, Rob; Debes, John (IOP Publishing, 2016)
      HD 11112 is an old, Sun-like star that has a long-term radial velocity (RV) trend indicative of a massive companion on a wide orbit. Here we present direct images of the source responsible for the trend using the Magellan ...
    • Search for Nearby Earth Analogs .III. Detection of 10 New Planets, 3 Planet Candidates, and Confirmation ... 
      Feng, Fabo; Shectman, Stephen A.; Clement, Matthew S.; Vogt, Steven S.; Tuomi, Mikko; Teske, Johanna K.; Burt, Jennifer; Crane, Jeffrey D.; Holden, Bradford; Xuesong Wang, Sharon; Thompson, Ian B.; Díaz, Matías; Butler, R. Paul (IOP Publishing, 2020)
      Earth-sized planets in the habitable zones of M dwarfs are good candidates for the study of habitability and detection of biosignatures. To search for these planets, we analyze all available radial velocity data and apply ...
    • Search for Nearby Earth Analogs. II. Detection of Five New Planets, Eight Planet Candidates, and Confirmation ... 
      Feng, Fabo; Butler, R. Paul; Shectman, Stephen A.; Crane, Jeffrey D.; Vogt, Steve; Chambers, John; Jones, Hugh R. A.; Wang, Sharon Xuesong; Teske, Johanna K.; Burt, Jenn; Díaz, Matías R.; Thompson, Ian B. (IOP Publishing, 2020)
      Zechmeister et al. surveyed 38 nearby M dwarfs from 2000 to 2007 March with VLT2 and the Ultraviolet and Visual Echelle Spectrograph (UVES) spectrometer. These data have recently been reanalyzed, yielding a significant ...
    • The Magellan PFS planet search program: radial velocity and stellar abundance analyses of the 360 au, ... 
      Teske, Johanna K.; Shectman, Stephen A.; Vogt, Steve S.; Díaz, Matías; Butler, R. Paul; Crane, Jeffrey D.; Thompson, Ian B.; Arriagada, Pamela (2016)
      We present a new precision radial velocity (RV) data set that reveals multiple planets orbiting the stars in the similar to 360 au, G2+G2 "twin" binary HD 133131AB. Our six years of high-resolution echelle observations ...
    • The Magellan/PFS Exoplanet Search: a 55-d period dense Neptune transiting the bright (V = 8.6) star HD 95338 
      Díaz, Matías R.; Jenkins, James; Feng, Fabo; Butler, R. Paul; Tuomi, Mikko; Shectman, Stephen A.; Thorngren, Daniel; Soto, Maritza G.; Vines, José I.; Teske, Johanna K.; Dragomir, Diana; Villanueva, Steven; Kane, Stephen R.; Berdiñas, Zaira M.; Crane, Jeffrey D.; Wang, Sharon; Arriagada, Pamela (Oxford University Press, 2020)
      We report the detection of a transiting, dense Neptune planet candidate orbiting the bright (V = 8.6) K0.5V star HD 95338. Detection of the 55-d periodic signal comes from the analysis of precision radial velocities from ...
    • The test case of HD 26965: difficulties disentangling weak doppler signals from stellar activity 
      Díaz, Matias R.; Jenkins, James Stewart; Tuomi, Mikko; Butler, R. Paul; Soto, Maritza G.; Teske, Johanna K.; Feng, Fabo; Shectman, Stephen A.; Arriagada, Pamela; Crane, Jeffrey D.; Thompson, Ian B.; Vogt, Steven S. (IOP Publishing Ltd, 2018)
      We report the discovery of a radial velocity signal that can be interpreted as a planetary-mass candidate orbiting the K dwarf HD 26965, with an orbital period of 42.364 +/- 0.015 days, or alternatively, as the presence ...
    • TOI-150: A Transiting Hot Jupiter in the TESS Southern CVZ 
      Cañas, Caleb I.; Stefansson, Gudmundur; Monson, Andrew J.; Teske, Johanna K.; Bender, Chad F.; Mahadevan, Suvrath; Aerts, Conny; Beaton, Rachael L.; Butler, R. Paul; Covey, Kevin R.; Crane, Jeffrey D.; De Lee, Nathan; Díaz, Matías R.; Fleming, Scott W.; García Hernández, D. A.; Hearty, Fred R.; Kollmeier, Juna A.; Majewski, Steven R.; Nitschelm, Christian; Schneider, Donald P.; Shectman, Stephen A.; Stassun, Keivan G.; Tkachenko, Andrew; Wang, Sharon X.; Wang, Songhu; Wilson, John C.; Wilson, Robert F. (IOP Publishing, 2019)
      We report the detection of a hot Jupiter (M-p = 1.75(-0.17)(+0.14) M-J, R-p = 1.38 +/- 0.04R(J)) orbiting a middle-aged star (log g = 4.152(-0.043)(+0.030)) in the Transiting Exoplanet Survey Satellite (TESS) southern ...