Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Howard Isaacson"'
Autor:
Elliott P. Horch, Jon M. Jenkins, Leslie A. Rogers, Jason F. Rowe, David W. Latham, Søren Meibom, Sydney A. Barnes, Christopher E. Henze, Guillermo Torres, David R. Ciardi, Geoffrey W. Marcy, Francois Fressin, Justin R. Crepp, Kenneth A. Janes, S. T. Bryson, Steve B. Howell, Howard Isaacson, Debra A. Fischer, Simon C. Schuler
Publikováno v:
Nature. 499:55-58
Most stars and their planets form in open clusters. Over 95 per cent of such clusters have stellar densities too low (less than a hundred stars per cubic parsec) to withstand internal and external dynamical stresses and fall apart within a few hundre
Autor:
Steve B. Howell, Joshua A. Carter, Jonathan J. Fortney, William D. Cochran, Daniel C. Fabrycky, Samuel N. Quinn, Guillermo Torres, Donald R. Short, Michael R. Haas, Howard Isaacson, Eric B. Ford, Erik Brugamyer, Elisa V. Quintana, Paul Robertson, Andrej Prsa, Michael Endl, Jerome A. Orosz, Natalie M. Batalha, David R. Ciardi, Tsevi Mazeh, Douglas A. Caldwell, Lars A. Buchhave, William J. Borucki, David W. Latham, Thomas N. Gautier, Ronald L. Gilliland, Jack J. Lissauer, Laurance R. Doyle, Avi Shporer, William F. Welsh, Todd C. Klaus, Caroline Caldwell, Darin Ragozzine, Jie Li, Matthew J. Holman, David G. Koch, Thomas Barclay, Gur Windmiller, Steven Bloemen, Jon M. Jenkins, Jessie L. Christiansen, Geoffrey W. Marcy, Andrew W. Howard, Jason H. Steffen, Joshua N. Winn, Jennifer R. Hall
Publikováno v:
Nature. 481:475-479
Most Sun-like stars in the Galaxy reside in gravitationally bound pairs of stars (binaries). Although long anticipated, the existence of a 'circumbinary planet' orbiting such a pair of normal stars was not definitively established until the discovery
Autor:
William D. Cochran, Martin Bizzarro, Dimitar Sasselov, David W. Latham, Geoffrey W. Marcy, Lars A. Buchhave, Michael Endl, Diana Juncher, Howard Isaacson
Publikováno v:
Nature, vol 509, iss 7502
Approximately half of the extrasolar planets (exoplanets) with radii less than four Earth radii are in orbits with short periods. Despite their sheer abundance, the compositions of such planets are largely unknown. The available evidence suggests tha
Autor:
Howard Isaacson, Daniel C. Fabrycky, S. M. Mills, Eric B. Ford, Erik A. Petigura, Cezary Migaszewski
Publikováno v:
Nature. 533(7604)
Surveys have revealed many multi-planet systems containing super-Earths and Neptunes in orbits of a few days to a few months. There is debate whether in situ assembly or inward migration is the dominant mechanism of the formation of such planetary sy
Autor:
Terese T. Hansen, Michael Endl, Lars A. Buchhave, David W. Latham, David R. Ciardi, Caroline Caldwell, Natalie M. Batalha, Martin Bizzarro, Stephen T. Bryson, Jason F. Rowe, Anders Johansen, Gilbert A. Esquerdo, John C. Geary, Philip W. Lucas, Geoffrey W. Marcy, Ronald L. Gilliland, Martin Still, Samuel N. Quinn, Avi Shporer, William D. Cochran, Robert P. Stefanik, John B. Laird, Eric B. Ford, Jon A. Morse, Erik Brugamyer, Paul Robertson, Howard Isaacson, Guillermo Torres, William J. Borucki
Publikováno v:
Nature
The abundance of heavy elements (metallicity) in the photospheres of stars similar to the Sun provides a 'fossil' record of the chemical composition of the initial protoplanetary disk. Metal-rich stars are much more likely to harbour gas giant planet
Autor:
Avishay Gal-Yam, Robert M. Quimby, J. D. Lyman, Emma S. Walker, D. Bersier, Andrew W. Howard, Howard Isaacson, Shrinivas R. Kulkarni, Federica B. Bianco, David J. Sand, Elena Pian, Eran O. Ofek, Melissa L. Graham, Nicholas M. Law, J. E. Tarlton, Joshua S. Bloom, Jeffrey M. Silverman, Jerod T. Parrent, Geoffrey W. Marcy, Peter Nugent, Benjamin Dilday, Benjamin J. Fulton, Mansi M. Kasliwal, Phil A. James, M. T. Kandrashoff, Paolo A. Mazzali, Philipp Podsiadlowski, Alexei V. Filippenko, R. C. Thomas, Isobel Hook, Kate Maguire, Lars Bildsten, Nao Suzuki, Mark Sullivan, S. Bradley Cenko, Yen-Chen Pan, Daniel Kasen, D. Andrew Howell, Dovi Poznanski
Publikováno v:
Nature. 480(7377)
Type Ia supernovae (SNe Ia) have been used empirically as standardized candles to reveal the accelerating universe even though fundamental details, such as the nature of the progenitor system and how the star explodes, remained a mystery. There is co