R
Ramesh Narayan
Researcher at Harvard University
Publications - 697
Citations - 73625
Ramesh Narayan is an academic researcher from Harvard University. The author has contributed to research in topics: Black hole & Accretion (astrophysics). The author has an hindex of 129, co-authored 661 publications receiving 63628 citations. Previous affiliations of Ramesh Narayan include University of California, Santa Barbara & Smithsonian Institution.
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Journal ArticleDOI
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
Kazunori Akiyama,Antxon Alberdi,Walter Alef,Keiichi Asada,Rebecca Azulay,Rebecca Azulay,Anne Kathrin Baczko,David Ball,Mislav Baloković,John E. Barrett,Dan Bintley,Lindy Blackburn,W. Boland,Katherine L. Bouman,Katherine L. Bouman,Geoffrey C. Bower,Michael Bremer,Christiaan D. Brinkerink,Roger Brissenden,Silke Britzen,Avery E. Broderick,Avery E. Broderick,Dominique Broguiere,Thomas Bronzwaer,Do-Young Byun,John E. Carlstrom,Andrew Chael,Chi-kwan Chan,Shami Chatterjee,Koushik Chatterjee,Ming-Tang Chen,Yi Chen,Yi Chen,Ilje Cho,Pierre Christian,Pierre Christian,John Conway,James M. Cordes,Geoffrey B. Crew,Yuzhu Cui,Yuzhu Cui,Jordy Davelaar,Mariafelicia De Laurentis,Mariafelicia De Laurentis,Roger Deane,Roger Deane,Jessica Dempsey,Gregory Desvignes,Jason Dexter,Sheperd S. Doeleman,R. P. Eatough,Heino Falcke,Vincent L. Fish,Ed Fomalont,Raquel Fraga-Encinas,William T. Freeman,Per Friberg,Christian M. Fromm,José L. Gómez,Peter Galison,Charles F. Gammie,Roberto Garcia,Olivier Gentaz,Boris Georgiev,Ciriaco Goddi,Ciriaco Goddi,Roman Gold,Minfeng Gu,Minfeng Gu,Mark Gurwell,Kazuhiro Hada,Kazuhiro Hada,Michael H. Hecht,Ronald Hesper,Luis C. Ho,Paul T. P. Ho,Mareki Honma,Mareki Honma,Chih-Wei Locutus Huang,Lei Huang,Lei Huang,David H. Hughes,Shiro Ikeda,Makoto Inoue,Sara Issaoun,David J. James,Buell T. Jannuzi,Michael Janssen,Britton Jeter,Wu Jiang,Michael D. Johnson,Svetlana G. Jorstad,Svetlana G. Jorstad,Taehyun Jung,Mansour Karami,Mansour Karami,Ramesh Karuppusamy,Tomohisa Kawashima,Garrett K. Keating,Mark Kettenis,Jae-Young Kim,Junhan Kim,Jongsoo Kim,Motoki Kino,Motoki Kino,Jun Yi Koay,Patrick M. Koch,Shoko Koyama,Michael Kramer,Carsten Kramer,Thomas P. Krichbaum,C. Y. Kuo,Tod R. Lauer,Sang-Sung Lee,Yan-Rong Li,Zhiyuan Li,Michael Lindqvist,Kuo Liu,Elisabetta Liuzzo,Wen Ping Lo,Wen Ping Lo,Andrei P. Lobanov,Laurent Loinard,Colin J. Lonsdale,Ru-Sen Lu,Ru-Sen Lu,Nicholas R. MacDonald,Jirong Mao,Sera Markoff,Daniel P. Marrone,Alan P. Marscher,Ivan Marti-Vidal,Satoki Matsushita,Lynn D. Matthews,Lia Medeiros,Lia Medeiros,Karl M. Menten,Yosuke Mizuno,Izumi Mizuno,James M. Moran,Kotaro Moriyama,Kotaro Moriyama,Monika Moscibrodzka,Cornelia Müller,Cornelia Müller,Hiroshi Nagai,Hiroshi Nagai,Neil M. Nagar,Masanori Nakamura,Ramesh Narayan,Gopal Narayanan,Iniyan Natarajan,Roberto Neri,Chunchong Ni,Aristeidis Noutsos,Hiroki Okino,Hiroki Okino,Hector Olivares,Gisela N. Ortiz-León,Tomoaki Oyama,Feryal Özel,Daniel C. M. Palumbo,Nimesh A. Patel,Ue-Li Pen,Ue-Li Pen,Ue-Li Pen,Dominic W. Pesce,Vincent Piétu,Richard L. Plambeck,Aleksandar Popstefanija,Oliver Porth,Oliver Porth,Ben Prather,Jorge A. Preciado-López,Dimitrios Psaltis,Hung Yi Pu,Venkatessh Ramakrishnan,Ramprasad Rao,Mark G. Rawlings,Alexander W. Raymond,Luciano Rezzolla,Bart Ripperda,Freek Roelofs,Alan E. E. Rogers,Eduardo Ros,Mel Rose,Arash Roshanineshat,Helge Rottmann,Alan L. Roy,Chet Ruszczyk,Benjamin R. Ryan,Kazi L.J. Rygl,S. Sánchez,David Sánchez-Arguelles,David Sánchez-Arguelles,Mahito Sasada,Mahito Sasada,Tuomas Savolainen,Tuomas Savolainen,F. Peter Schloerb,Karl Friedrich Schuster,Lijing Shao,Lijing Shao,Zhiqiang Shen,Zhiqiang Shen,Des Small,Bong Won Sohn,Bong Won Sohn,Jason SooHoo,Fumie Tazaki,Paul Tiede,Remo P. J. Tilanus,Remo P. J. Tilanus,Michael Titus,Kenji Toma,Pablo Torne,Tyler Trent,Sascha Trippe,Shuichiro Tsuda,Ilse van Bemmel,Huib Jan van Langevelde,Huib Jan van Langevelde,Daniel R. van Rossum,Jan Wagner,John Wardle,Jonathan Weintroub,Norbert Wex,Robert Wharton,Maciek Wielgus,George N. Wong,Qingwen Wu,Ken H. Young,André Young,Ziri Younsi,Ziri Younsi,Feng Yuan,Feng Yuan,Ye-Fei Yuan,J. Anton Zensus,Guang-Yao Zhao,Shan Shan Zhao,Shan Shan Zhao,Ziyan Zhu,Juan-Carlos Algaba,Juan-Carlos Algaba,Alexander Allardi,Rodrigo Amestica,Jadyn Anczarski,Uwe Bach,Frederick K. Baganoff,Christopher Beaudoin,Bradford Benson,Ryan Berthold,J. Blanchard,J. Blanchard,Ray Blundell,Sandra Bustamente,Roger J. Cappallo,E. Castillo-Domínguez,E. Castillo-Domínguez,Chih Cheng Chang,Chih Cheng Chang,Shu Hao Chang,Song Chu Chang,Chung Chen Chen,Ryan Chilson,Timothy C. Chuter,Rodrigo Córdova Rosado,Iain Coulson,T. M. Crawford,Joseph Crowley,John David,Mark Derome,Matthew R. Dexter,Sven Dornbusch,Kevin A. Dudevoir,S. A. Dzib,Andreas Eckart,Andreas Eckart,Chris Eckert,Neal R. Erickson,W. B. Everett,Aaron Faber,Joseph R. Farah,Joseph R. Farah,Vernon Fath,Thomas W. Folkers,David C. Forbes,Robert Freund,Arturo I. Gómez-Ruiz,Arturo I. Gómez-Ruiz,David M. Gale,Feng Gao,Feng Gao,Gertie Geertsema,D. A. Graham,Christopher Greer,Ronald Grosslein,Frederic Gueth,Daryl Haggard,Daryl Haggard,N. W. Halverson,Chih Chiang Han,Kuo Chang Han,Jinchi Hao,Yutaka Hasegawa,Jason W. Henning,Jason W. Henning,Antonio Hernández-Gómez,Antonio Hernández-Gómez,Rubén Herrero-Illana,Stefan Heyminck,Akihiko Hirota,Akihiko Hirota,James Hoge,Yau De Huang,C. M. Violette Impellizzeri,C. M. Violette Impellizzeri,Homin Jiang,Atish Kamble,Ryan Keisler,Kimihiro Kimura,Yusuke Kono,Derek Kubo,John Kuroda,Richard Lacasse,R. Laing,Erik M. Leitch,Chao-Te Li,Lupin C.C. Lin,Lupin C.C. Lin,Ching Tang Liu,Kuan Yu Liu,Li Ming Lu,Ralph G. Marson,Pierre Martin-Cocher,Kyle D. Massingill,Callie Matulonis,Martin P. McColl,Stephen R. McWhirter,Hugo Messias,Hugo Messias,Zheng Meyer-Zhao,Zheng Meyer-Zhao,Daniel Michalik,A. Montaña,A. Montaña,William Montgomerie,M. Mora-Klein,Dirk Muders,A. Nadolski,S. Navarro,Joseph Neilsen,Chi H. Nguyen,Chi H. Nguyen,Hiroaki Nishioka,Timothy Norton,Michael A. Nowak,George Nystrom,Hideo Ogawa,Peter Oshiro,Harriet Parsons,Scott Paine,J. Peñalver,N. Phillips,N. Phillips,M. Poirier,Nicolas Pradel,Rurik A. Primiani,Philippe Raffin,Alexandra S. Rahlin,Alexandra S. Rahlin,George Reiland,Christopher Risacher,Ignacio Ruiz,Alejandro F. Sáez-Madain,Alejandro F. Sáez-Madain,Remi Sassella,Pim Schellart,Pim Schellart,Paul Shaw,Kevin M. Silva,Hotaka Shiokawa,David R. Smith,William Snow,Kamal Souccar,Don Sousa,Tirupati K. Sridharan,Ranjani Srinivasan,William Stahm,A. A. Stark,K. T. Story,Sjoerd T. Timmer,Laura Vertatschitsch,Craig Walther,Ta Shun Wei,Nathan Whitehorn,Alan R. Whitney,David P. Woody,J. G. A. Wouterloot,M. C. H. Wright,Paul Yamaguchi,Chen Yu Yu,M. Zeballos,M. Zeballos,Shuo Zhang,Lucy M. Ziurys +406 more
TL;DR: In this article, the Event Horizon Telescope was used to reconstruct event-horizon-scale images of the supermassive black hole candidate in the center of the giant elliptical galaxy M87.
Journal ArticleDOI
Spectra and light curves of gamma-ray burst afterglows
TL;DR: In this paper, the broadband spectrum and corresponding light curve of synchrotron radiation from a power-law distribution of electrons in an expanding relativistic shock were calculated for the gamma-ray burst afterglow.
Journal ArticleDOI
Advection-dominated Accretion: A Self-similar Solution
Ramesh Narayan,Insu Yi +1 more
TL;DR: In this article, the authors consider viscous rotating accretion flows in which most of the viscously dissipated energy is stored as entropy rather than being radiated, and obtain a family of self-similar solutions where the temperature of the accreting gas is nearly virial and the flow is quasi-spherical.
Journal ArticleDOI
Advection dominated accretion: Underfed black holes and neutron stars
Ramesh Narayan,Insu Yi +1 more
TL;DR: In this article, the authors describe new optically thin solutions for rotating accretion flows around black holes and neutron stars, which are advection dominated, so that most of the viscously dissipated energy is advected radially with the flow.
Journal ArticleDOI
Hot Accretion Flows Around Black Holes
Feng Yuan,Ramesh Narayan +1 more
TL;DR: In this article, the authors classified the hot accretion flows into two broad classes: cold and hot, and showed that hot flows are associated with jets and strong winds, and that they are present in low-luminosity active galactic nuclei and in black hole X-ray binaries in the hard and quiescent states.