P
P. R. Gazis
Researcher at Ames Research Center
Publications - 40
Citations - 2721
P. R. Gazis is an academic researcher from Ames Research Center. The author has contributed to research in topics: Coronal mass ejection & Heliosphere. The author has an hindex of 20, co-authored 39 publications receiving 2545 citations. Previous affiliations of P. R. Gazis include Search for extraterrestrial intelligence.
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Journal ArticleDOI
Kepler Mission Design, Realized Photometric Performance, and Early Science
David G. Koch,William J. Borucki,Gibor Basri,Natalie M. Batalha,Timothy M. Brown,Douglas A. Caldwell,Jørgen Christensen-Dalsgaard,William D. Cochran,Edna DeVore,Edward W. Dunham,Thomas N. Gautier,John C. Geary,Ronald L. Gilliland,Alan Gould,Jon M. Jenkins,Yoji Kondo,David W. Latham,Jack J. Lissauer,Geoffrey W. Marcy,David G. Monet,Dimitar Sasselov,Alan P. Boss,Donald E. Brownlee,John Caldwell,Andrea K. Dupree,Steve B. Howell,Hans Kjeldsen,Søren Meibom,David Morrison,Tobias Owen,Harold J. Reitsema,Jill Tarter,Stephen T. Bryson,Jessie L. Dotson,P. R. Gazis,Michael R. Haas,Jeffrey Kolodziejczak,Jason F. Rowe,Jeffrey Van Cleve,Christopher Allen,Hema Chandrasekaran,Bruce D. Clarke,Jie Li,Elisa V. Quintana,Peter Tenenbaum,Joseph D. Twicken,Hayley Wu +46 more
TL;DR: The Kepler mission as mentioned in this paper was designed with the explicit capability to detect Earth-size planets in the habitable zone of solar-like stars using the transit photometry method, and the results from just 43 days of data along with ground-based follow-up observations have identified five new transiting planets with measurements of their masses, radii, and orbital periods.
Journal ArticleDOI
INSTRUMENT PERFORMANCE IN KEPLER's FIRST MONTHS
Douglas A. Caldwell,Jeffery J. Kolodziejczak,Jeffrey Van Cleve,Jon M. Jenkins,P. R. Gazis,Vic S. Argabright,Eric Bachtell,Edward W. Dunham,John C. Geary,Ronald L. Gilliland,Hema Chandrasekaran,Jie Li,Peter Tenenbaum,Hayley Wu,William J. Borucki,Stephen T. Bryson,Jessie L. Dotson,Michael R. Haas,David G. Koch +18 more
TL;DR: The Kepler mission relies on precise differential photometry to detect the 80 parts per million (ppm) signal from an Earth-Sun equivalent transit, which requires superb instrument stability on timescales up to ~2 days and systematic error removal to better than 20 ppm as discussed by the authors.
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Solar cycle changes in coronal holes and space weather cycles
TL;DR: In this article, potential field source surface models of the coronal magnetic field, based on Mt. Wilson Observatory synoptic magnetograms, are used to infer the CORonal hole sources of low-heliolatitude solar wind over approximately the last three solar cycles.
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On the sources of interplanetary shocks at 0.72 AU
TL;DR: In this paper, a survey of Pioneer Venus Orbiter (PVO) magnetometer and plasma data from 1979-1988 has been conducted to understand the solar cycle variation of interplanetary shocks and their driving source.
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Solar and interplanetary control of the location of the Venus bow shock
TL;DR: The location of the bow shock has been measured at nearly 2000 shock crossings, and its dependence on solar EUV, solar wind conditions, and the interplanetary magnetic field determined.