George R. Ricker
Massachusetts Institute of Technology
549 Papers
5.4K Citations
George R. Ricker is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Planet & Exoplanet. The author has an hindex of 58, co-authored 422 publications. Previous affiliations of George R. Ricker include Vassar College & Max Planck Society.
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Papers
The physics of the low-energy tail in the ACIS CCD: The spectral redistribution function
TL;DR: In this article, the authors studied the response of high resistivity MOS CCDs to monochromatic X-ray illumination at energies ranging from 1.47 to 5.9 keV and discovered a new feature in the low energy tail of the response function.
Validation of a Third Planet in the LHS 1678 System
Michele L. Silverstein,Thomas Barclay,Joshua E. Schlieder,Karen A. Collins,R. P. Schwarz,Benjamin J. Hord,Jason F. Rowe,Ethan Kruse,Nicola Astudillo-Defru,Xavier Bonfils,Douglas A. Caldwell,D. Charbonneau,Ryan Cloutier,Kevin Collins,Tansu Daylan,William Fong,Jon M. Jenkins,Michelle Kunimoto,S. McDermott,F. G. I. D. A. D. Canarias,Departamento Astrofísica,U. L. Laguna,E. I. D. A. D. Canarias,George R. Ricker,S. Seager,A. Shporer,Evan Tey,Roland Vanderspek,Joshua N. Winn +28 more
TL;DR: Validation and characterization of a third planet in the LHS 1678 system, including its unique orbital and physical properties.
TESS first look at evolved compact pulsators : Discovery and asteroseismic probing of the g-mode hot B subdwarf pulsator EC 21494-7018.
Stéphane Charpinet,Pierre Brassard,Gilles Fontaine,Valérie Van Grootel,Weikai Zong,N. Giammichele,Ulrich Heber,Zs. Bognár,Stephan Geier,Elizabeth M. Green,J. J. Hermes,D. Kilkenny,R. H. Østensen,I. Pelisoli,Roberto Silvotti,J. H. Telting,Maja Vučković,Hannah L. Worters,Andrzej S. Baran,Keaton J. Bell,Paul A. Bradley,John H. Debes,Steven D. Kawaler,P. Kołaczek-Szymański,Simon J. Murphy,Andrzej Pigulski,Ádám Sódor,M. Uzundag,Rasmus Handberg,H. Kjeldsen,George R. Ricker,R. Vanderspek +31 more
TL;DR: In this article, the authors presented the discovery and asteroseismic analysis of a new g-mode hot B subdwarf (sdB) pulsator, EC 21494-7018 (TIC 278659026), monitored in TESS first sector using 120-second cadence.
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A pair of warm giant planets near the 2:1 mean motion resonance around the K-dwarf star TOI-2202
Trifon Trifonov,Rafael Brahm,Néstor Espinoza,Thomas Henning,Andrés Jordán,David Nesvorny,Rebekah I. Dawson,Jack J. Lissauer,Man Hoi Lee,Diana Kossakowski,Felipe Rojas,Melissa J. Hobson,Paula Sarkis,Martin Schlecker,Bertram Bitsch,Gáspár Á. Bakos,Mauro Barbieri,Waqas Bhatti,R. Paul Butler,Jeffrey D. Crane,Sangeetha Nandakumar,Matias Diaz,Stephen A. Shectman,Johanna Teske,Pascal Torres,Vincent Suc,Jose I. Vines,Sharon X. Wang,George R. Ricker,Avi Shporer,Andrew Vanderburg,Diana Dragomir,Roland Vanderspek,Christopher J. Burke,Tansu Daylan,Bernie Shiao,Jon M. Jenkins,Bill Wohler,Sara Seager,Joshua N. Winn +39 more
TL;DR: In this paper, a transiting warm Jovian-mass planet with an orbital period of P=11.91 days was identified from the Full Frame Images data of five different sectors of the TESS mission.
Absolute calibration of ACIS x-ray CCDs using calculable undispersed synchrotron radiation
Marshall W. Bautz,Michael J. Pivovaroff,Steven E. Kissel,Gregory Y. Prigozhin,Takashi Isobe,Stephen E. Jones,George R. Ricker,Reiner Thornagel,Stefan Kraft,Frank Scholze,Gerhard Ulm +10 more
TL;DR: In this article, a series of measurements with the Physikalisch-Technische Bundesanstalt beamline of the electron storage ring BESSY 1 were performed to provide the basis for the absolute calibration of the Advanced CCD Imaging Spectrometer (ACIS).