Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Hansen, Brad"'
We describe the evolution of low mass planets in a dispersing protoplanetary disk around a Solar mass star. The disk model is based on the results of Yu, Hansen & Hasegawa (2023), which describes a region of the inner disk where the direction of the
Externí odkaz:
http://arxiv.org/abs/2405.12388
Autor:
Kipping, David, Teachey, Alex, Yahalomi, Daniel A., Cassese, Ben, Quarles, Billy, Bryson, Steve, Hansen, Brad, Szulágyi, Judit, Burke, Chris, Hardegree-Ullman, Kevin
Recently, Heller & Hippke argued that the exomoon candidates Kepler-1625 b-i and Kepler-1708 b-i were allegedly 'refuted'. In this Matters Arising, we address these claims. For Kepler-1625 b, we show that their Hubble light curve is identical to that
Externí odkaz:
http://arxiv.org/abs/2401.10333
Autor:
Hansen, Brad M. S., Hayakawa, Kevin
Publikováno v:
Open Journal of Astrophysics, 02/29/2024
We examine the population of simply periodic orbits in the Hill problem with radiation pressure included, in order to understand the distribution of gravitationally bound dust in orbit around a planet. We study a wide range of radiation pressure stre
Externí odkaz:
http://arxiv.org/abs/2308.07994
Autor:
Christiansen, Jessie L., Vanderburg, Andrew, Burt, Jennifer, Fulton, B. J., Batygin, Konstantin, Benneke, Björn, Brewer, John M., Charbonneau, David, Ciardi, David R., Cameron, Andrew Collier, Coughlin, Jeffrey L., Crossfield, Ian J. M., Dressing, Courtney, Greene, Thomas P., Howard, Andrew W., Latham, David W., Molinari, Emilio, Mortier, Annelies, Mullally, Fergal, Pepe, Francesco, Rice, Ken, Sinukoff, Evan, Sozzetti, Alessandro, Thompson, Susan E., Udry, Stéphane, Vogt, Steven S., Barman, Travis S., Batalha, Natasha E., Bouchy, François, Buchhave, Lars A., Butler, R. Paul, Cosentino, Rosario, Dupuy, Trent J., Ehrenreich, David, Fiorenzano, Aldo, Hansen, Brad M. S., Henning, Thomas, Hirsch, Lea, Holden, Bradford P., Isaacson, Howard T., Johnson, John A., Knutson, Heather A., Kosiarek, Molly, López-Morales, Mercedes, Lovis, Christophe, Malavolta, Luca, Mayor, Michel, Micela, Giuseppina, Motalebi, Fatemeh, Petigura, Erik, Phillips, David F., Piotto, Giampaolo, Rogers, Leslie A., Sasselov, Dimitar, Schlieder, Joshua E., Ségransan, Damien, Watson, Christopher A., Weiss, Lauren M.
HD 3167 is a bright (V = 8.9), nearby KO star observed by the NASA K2 mission (EPIC 220383386), hosting two small, short-period transiting planets. Here we present the results of a multi-site, multi-instrument radial-velocity campaign to characterize
Externí odkaz:
http://hdl.handle.net/10150/625817
http://arizona.openrepository.com/arizona/handle/10150/625817
http://arizona.openrepository.com/arizona/handle/10150/625817
Autor:
Crossfield, Ian J. M., Ciardi, David R., Petigura, Erik A., Sinukoff, Evan, Schlieder, Joshua E., Howard, Andrew W., Beichman, Charles A., Isaacson, Howard, Dressing, Courtney D., Christiansen, Jessie L., Fulton, Benjamin J., Lepine, Sebastien, Weiss, Lauren, Hirsch, Lea, Livingston, John, Baranec, Christoph, Law, Nicholas M., Riddle, Reed, Ziegler, Carl, Howell, Steve B., Horch, Elliott, Everett, Mark, Teske, Johanna, Martinez, Arturo O., Obermeier, Christian, Benneke, Bjorn, Scott, Nic, Deacon, Niall, Aller, Kimberly M., Hansen, Brad M. S., Mancini, Luigi, Ciceri, Simona, Brahm, Rafael, Jordan, Andres, Knutson, Heather A., Henning, Thomas, Bonnefoy, Michael, Liu, Michael C., Crepp, Justin R., Lothringer, Joshua, Hinz, Phil, Bailey, Vanessa, Skemer, Andrew, Defrere, Denis
We present 197 planet candidates discovered using data from the first year of the NASA K2 mission (Campaigns 0-4), along with the results of an intensive program of photometric analyses, stellar spectroscopy, high-resolution imaging, and statistical
Externí odkaz:
http://hdl.handle.net/10150/624074
http://arizona.openrepository.com/arizona/handle/10150/624074
http://arizona.openrepository.com/arizona/handle/10150/624074
Autor:
Sinukoff, Evan, Howard, Andrew W., Petigura, Erik A., Schlieder, Joshua E., Crossfield, Ian J. M., Ciardi, David R., Fulton, Benjamin J., Isaacson, Howard, Aller, Kimberly M., Baranec, Christoph, Beichman, Charles A., Hansen, Brad M. S., Knutson, Heather A., Law, Nicholas M., Liu, Michael C., Riddle, Reed, Dressing, Courtney D.
We present a catalog of 11 multiplanet systems from Campaigns 1 and 2 of the K2 mission. We report the sizes and orbits of 26 planets split between seven two-planet systems and four three-planet systems. These planets stem from a systematic search of
Externí odkaz:
http://hdl.handle.net/10150/621388
http://arizona.openrepository.com/arizona/handle/10150/621388
http://arizona.openrepository.com/arizona/handle/10150/621388
Autor:
Ngo, Henry, Knutson, Heather A., Hinkley, Sasha, Bryan, Marta, Crepp, Justin R., Batygin, Konstantin, Crossfield, Ian, Hansen, Brad, Howard, Andrew W., Johnson, John A., Mawet, Dimitri, Morton, Timothy D., Muirhead, Philip S., Wang, Ji
Stellar companions can influence the formation and evolution of planetary systems, but there are currently few observational constraints on the properties of planet-hosting binary star systems. We search for stellar companions around 77 transiting ho
Externí odkaz:
http://hdl.handle.net/10150/621385
http://arizona.openrepository.com/arizona/handle/10150/621385
http://arizona.openrepository.com/arizona/handle/10150/621385
We present a physically motivated model for the manner in which a stellar magnetic field sculpts the inner edge of a protoplanetary disk, and examine the consequence for the migration and stopping of sub-Neptune and super-Earth planets. This model in
Externí odkaz:
http://arxiv.org/abs/2210.13674
Autor:
Kipping, David, Bryson, Steve, Burke, Chris, Christiansen, Jessie, Hardegree-Ullman, Kevin, Quarles, Billy, Hansen, Brad, Szulágyi, Judit, Teachey, Alex
Exomoons represent a crucial missing puzzle piece in our efforts to understand extrasolar planetary systems. To address this deficiency, we here describe an exomoon survey of 70 cool, giant transiting exoplanet candidates found by Kepler. We identify
Externí odkaz:
http://arxiv.org/abs/2201.04643