Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Marcy, Geoff"'
Autor:
Mawet, Dimitri, Hirsch, Lea, Lee, Eve J., Ruffio, Jean-Baptiste, Bottom, Michael, Fulton, Benjamin J., Absil, Olivier, Beichman, Charles, Bowler, Brendan, Bryan, Marta, Choquet, Elodie, Ciardi, David, Christiaens, Valentin, Defrère, Denis, Gonzalez, Carlos Alberto Gomez, Howard, Andrew W., Huby, Elsa, Isaacson, Howard, Jensen-Clem, Rebecca, Kosiarek, Molly, Marcy, Geoff, Meshkat, Tiffany, Petigura, Erik, Reggiani, Maddalena, Ruane, Garreth, Serabyn, Eugene, Sinukoff, Evan, Wang, Ji, Weiss, Lauren, Ygouf, Marie
We present the most sensitive direct imaging and radial velocity (RV) exploration of $\epsilon$ Eridani to date. $\epsilon$ Eridani is an adolescent planetary system, reminiscent of the early Solar system. It is surrounded by a prominent and complex
Externí odkaz:
http://arxiv.org/abs/1810.03794
Autor:
Hartman, Joel D., Bhatti, Waqas, Bakos, Gáspár Á., Bieryla, Allyson, Kovács, Géza, Latham, David W., Csubry, Zoltan, de Val-Borro, Miguel, Penev, Kaloyan, Buchhave, Lars A., Torres, Guillermo, Howard, Andrew W., Marcy, Geoff W., Johnson, John A., Isaacson, Howard, Sato, Bun'ei, Boisse, Isabelle, Falco, Emilio, Everett, Mark E., Szklenar, Tamas, Fulton, Benjamin J., Shporer, Avi, Kovács, Tamas, Hansen, Terese, Béky, Bence, Noyes, Robert W., Lázár, József, Papp, Istvan, Sári, Pál
We report the discovery and characterization of four transiting exoplanets by the HATNet survey. The planet HAT-P-50b has a mass of 1.35 M_J and a radius of 1.29 R_J, and orbits a bright (V = 11.8 mag) M = 1.27 M_sun, R = 1.70 R_sun star every P = 3.
Externí odkaz:
http://arxiv.org/abs/1503.04149
Autor:
Plavchan, Peter, Latham, Dave, Gaudi, Scott, Crepp, Justin, Dumusque, Xavier, Furesz, Gabor, Vanderburg, Andrew, Blake, Cullen, Fischer, Debra, Prato, Lisa, White, Russel, Makarov, Valeri, Marcy, Geoff, Stapelfeldt, Karl, Haywood, Raphaëlle, Collier-Cameron, Andrew, Quirrenbach, Andreas, Mahadevan, Suvrath, Anglada, Guillem, Muirhead, Philip
[Abridged] The Study Analysis Group 8 of the NASA Exoplanet Analysis Group was convened to assess the current capabilities and the future potential of the precise radial velocity (PRV) method to advance the NASA goal to "search for planetary bodies a
Externí odkaz:
http://arxiv.org/abs/1503.01770
Autor:
Kipping, David M., Torres, Guillermo, Buchhave, Lars A., Kenyon, Scott J., Henze, Christopher E., Isaacson, Howard, Kolbl, Rea, Marcy, Geoff W., Bryson, Stephen T., Stassun, Keivan G., Bastien, Fabienne A.
In most theories of planet formation, the snow-line represents a boundary between the emergence of the interior rocky planets and the exterior ice giants. The wide separation of the snow-line makes the discovery of transiting worlds challenging, yet
Externí odkaz:
http://arxiv.org/abs/1407.4807
Autor:
Tan, Xianyu, Payne, Matthew J., Lee, Man Hoi, Ford, Eric B., Howard, Andrew W., Johnson, John. A., Marcy, Geoff W., Wright, Jason T.
We present an updated analysis of radial velocity data of the HD 82943 planetary system based on 10 years of measurements obtained with the Keck telescope. Previous studies have shown that the HD 82943 system has two planets that are likely in 2:1 me
Externí odkaz:
http://arxiv.org/abs/1306.0687
Autor:
Crepp, Justin R., Johnson, John Asher, Howard, Andrew W., Marcy, Geoff W., Fischer, Debra A., Yantek, Scott M., Wright, Jason T., Isaacson, Howard, Feng, Ying
We present the direct imaging detection of a faint tertiary companion to the single-lined spectroscopic binary HD 8375 AB. Initially noticed as an 53 m/s/yr Doppler acceleration by Bowler et al. 2010, we have obtained high-contrast adaptive optics ob
Externí odkaz:
http://arxiv.org/abs/1210.7374
Autor:
Crepp, Justin R., Johnson, John Asher, Howard, Andrew W., Marcy, Geoff W., Fischer, Debra A., Hillenbrand, Lynne A., Yantek, Scott M., Delaney, Colleen R., Wright, Jason T., Isaacson, Howard T., Montet, Benjamin T.
We present initial results from a new high-contrast imaging program dedicated to stars that exhibit long-term Doppler radial velocity accelerations (or "trends"). The goal of the TRENDS (TaRgetting bENchmark-objects with Doppler Spectroscopy and) ima
Externí odkaz:
http://arxiv.org/abs/1210.3000
Autor:
Kipping, David M., Hartman, Joel, Bakos, Gáspár Á., Torres, Guillermo, Latham, David W., Bayliss, Daniel, Kiss, László L., Sato, Bun'ei, Béky, Bence, Kovács, Géza, Quinn, Sam N., Buchhave, Lars A., Andersen, Jens, Marcy, Geoff W., Howard, Andrew W., Fischer, Debra A., Johnson, John A., Noyes, Robert W., Sasselov, Dimitar D., Stefanik, Robert P., Lázár, József, Papp, István, Sári, Pál, Furesz, Gabor
Publikováno v:
Astronomical Journal 142 95, 2011
We report the discovery of HAT-P-31b, a transiting exoplanet orbiting the V=11.660 dwarf star GSC 2099-00908. HAT-P-31b is the first HAT planet discovered without any follow-up photometry, demonstrating the feasibility of a new mode of operation for
Externí odkaz:
http://arxiv.org/abs/1106.1169
Autor:
Johnson, John Asher, Apps, Kevin, Gazak, J. Zachary, Crepp, Justin R., Crossfield, Ian J., Howard, Andrew W., Marcy, Geoff W., Morton, Timothy D., Chubak, Carly, Isaacson, Howard
We report the discovery of a brown dwarf that transits one member of the M+M binary system LHS6343AB every 12.71 days. The transits were discovered using photometric data from the Kelper public data release. The LHS6343 stellar system was previously
Externí odkaz:
http://arxiv.org/abs/1008.4141
Autor:
Schnupp, Carolin, Bergfors, Carolina, Brandner, Wolfgang, Daemgen, Sebastian, Fischer, Debra, Marcy, Geoff, Henning, Thomas, Hippler, Stefan, Janson, Markus
Sun-like stars are promising candidates to host exoplanets and are often included in exoplanet surveys by radial velocity (RV) and direct imaging. In this paper we report on the detection of a stellar companion to the nearby solar-analogue star HD 10
Externí odkaz:
http://arxiv.org/abs/1005.0620