R
Roger Penrose
Researcher at University of Oxford
Publications - 210
Citations - 42482
Roger Penrose is an academic researcher from University of Oxford. The author has contributed to research in topics: General relativity & Quantum gravity. The author has an hindex of 78, co-authored 201 publications receiving 39379 citations. Previous affiliations of Roger Penrose include University College London & King's College London.
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Reply to "A comment on "A test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth gravity model, by I. Ciufolini et al."".
Ignazio Ciufolini,Erricos C. Pavlis,John C Ries,Richard A. Matzner,Rolf Koenig,Antonio Paolozzi,Giampiero Sindoni,Vahe Gurzadyan,Roger Penrose,Claudio Paris +9 more
TL;DR: Ciufolini et al. as discussed by the authors published a test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth's gravity model, and the formal error was about 0.2% of frame-dragging, whereas the systematic error was estimated to be about 5%.
Journal ArticleDOI
An Improved Test of the General Relativistic Effect of Frame-Dragging Using the LARES and LAGEOS Satellites
Ignazio Ciufolini,Antonio Paolozzi,Erricos C. Pavlis,Giampiero Sindoni,John C Ries,Richard A. Matzner,Rolf Koenig,Claudio Paris,Vahe Gurzadyan,Roger Penrose +9 more
TL;DR: In this article, an improved test of frame-dragging, an intriguing phenomenon predicted by Einstein's General Relativity, obtained using 7 years of Satellite Laser Ranging (SLR) data of the satellite LARES (ASI, 2012) and 26 years of SLR data of LAGEOS (NASA, 1976) and LAGE OSI and NASA, 1992, was reported.
Posted Content
Correlated "noise" in LIGO gravitational wave signals: an implication of Conformal Cyclic Cosmology
TL;DR: In this article, it has been suggested that what seems to be spuriously generated noise may in fact be gravitational events caused by the decay of dark-matter particles (erebons) of mass around 10^-5g, the existence of such events being a clear implication of the cosmological scheme of conformal cyclic cosmology.
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Stephen William Hawking CH CBE. 8 January 194214 March 2018
Bernard Carr,George F. R. Ellis,Gary W. Gibbons,James B. Hartle,Thomas Hertog,Roger Penrose,Malcolm J. Perry,Kip S. Thorne +7 more
TL;DR: Stephen Hawking's contributions to the understanding of gravity, black holes and cosmology were truly immense as mentioned in this paper, and they began with the singularity theorems in the 1960s followed by his discovery that b...