A
Anuradha Koratkar
Researcher at Space Telescope Science Institute
Publications - 68
Citations - 4215
Anuradha Koratkar is an academic researcher from Space Telescope Science Institute. The author has contributed to research in topics: Active galactic nucleus & Galaxy. The author has an hindex of 31, co-authored 68 publications receiving 4106 citations. Previous affiliations of Anuradha Koratkar include University of Maryland, College Park.
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Journal ArticleDOI
The ionized gas and nuclear environment in NGC 3783. I. Time-averaged 900 kilosecond Chandra grating spectroscopy
Shai Kaspi,Shai Kaspi,W. N. Brandt,Ian M. George,Ian M. George,Hagai Netzer,D. Michael Crenshaw,Jack R. Gabel,Jack R. Gabel,Fred Hamann,Mary Elizabeth Kaiser,Anuradha Koratkar,Steven B. Kraemer,Steven B. Kraemer,Gerard A. Kriss,Gerard A. Kriss,Smita Mathur,Richard Mushotzky,K. Nandra,K. Nandra,Bradley M. Peterson,Joseph C. Shields,T. J. Turner,T. J. Turner,Wei Zheng +24 more
TL;DR: In this paper, the authors present results from a 900 ks exposure of NGC 3783 with the High-Energy Transmission Grating Spectrometer on board the Chandra X-Ray Observatory.
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The Ultraviolet and Optical Continuum Emission in Active Galactic Nuclei: The Status of Accretion Disks
Anuradha Koratkar,Omer Blaes +1 more
TL;DR: In this article, the authors review the substantial theoretical and observational progress made in the field and point out future research directions that would be fruitful in trying to obtain a complete, self-consistent model of the continuum-emitting regions.
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Multiwavelength tests of the dusty torus model for Seyfert galaxies
John S. Mulchaey,Anuradha Koratkar,Martin Ward,Andrew S. Wilson,Mark Whittle,Robert Antonucci,Anne L. Kinney,Todd Hurt +7 more
TL;DR: In this article, the authors present a compilation of emission properties for a sample of 116 Seyfert galaxies based on both previously unpublished data and measurements available in the literature, including fluxes in the emission lines (O III) lambda(5007) and H-beta, as well as the infrared (25-60 microns), ultraviolet (1450 A), soft (0.2-4 keV), and hard (2-10 keV) X-ray continua.
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Steps toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. IX. Ultraviolet Observations of Fairall 9
P. M. Rodríguez-Pascual,Danielle Alloin,J. Clavel,D. M. Crenshaw,Keith Horne,Gerard A. Kriss,Julian H. Krolik,M. A. Malkan,Hagai Netzer,P. T. O'Brien,Bradley M. Peterson,Gail A. Reichert,Willem Wamsteker,Tal Alexander,P. Barr,Roger Blandford,Joel N. Bregman,T. E. Carone,S. D. Clements,Thierry J.-L. Courvoisier,M. M. De Robertis,M. Dietrich,Horacio Alberto Dottori,Rick Edelson,Alexei V. Filippenko,C. M. Gaskell,John P. Huchra,J. B. Hutchings,Wolfram Kollatschny,Anuradha Koratkar,Kirk T. Korista,Ari Laor,Gordon M. MacAlpine,Peter G. Martin,D. Maoz,B. McCollum,Simon L. Morris,G. C. Perola,Richard W. Pogge,Roger Ptak,M. C. Recondo‐Gonzalez,J. M. Rodriguez‐Espinoza,E. L. Rokaki,Maria Santos-Lleo,Kazuhiro Sekiguchi,J. M. Shull,M. A. J. Snijders,Linda S. Sparke,G. M. Stirpe,R. Stoner,Wei-Hsin Sun,Stefan Wagner,Ignaz Wanders,Belinda Jane Wilkes,Claudia Winge,W. Zheng +55 more
TL;DR: In this article, an 8-month monitoring campaign on the Seyfert 1 galaxy Fairall 9 has been conducted with the International Ultraviolet Explorer in an attempt to obtain reliable estimates of continuum-continuum and continuum-emission-line delays for a high-luminosity active galactic nucleus (AGN).
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Ultraviolet-Optical Observations of the Seyfert 2 Galaxies NGC 7130, NGC 5135, and IC 3639: Implications for the Starburst-Active Galactic Nucleus Connection
Rosa M. González Delgado,Rosa M. González Delgado,Timothy M. Heckman,Claus Leitherer,Gerhardt R. Meurer,Julian Krolik,Andrew S. Wilson,Anne L. Kinney,Anuradha Koratkar +8 more
TL;DR: In this article, the authors present and discuss the Hubble Space Telescope (HST) (WFPC2 and FOC) images and ultraviolet (GHRS) spectra plus ground-based optical spectra of three Seyfert 2 nuclei (NGC 7130, NGC 5135 and IC 3639).