Ralph P. Kraft
Harvard University
368 Papers
3K Citations
Ralph P. Kraft is an academic researcher from Harvard University. The author has contributed to research in topics: Galaxy & Radio galaxy. The author has an hindex of 57, co-authored 331 publications. Previous affiliations of Ralph P. Kraft include CFA Institute & Smithsonian Astrophysical Observatory.
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Papers
Wide-Field Optical Spectroscopy of Abell 133: A Search for Filaments Reported in X-ray Observations.
Thomas Connor,Daniel D. Kelson,John S. Mulchaey,Alexey Vikhlinin,Shannon G. Patel,Michael L. Balogh,Gandhali Joshi,Gandhali Joshi,Ralph P. Kraft,Daisuke Nagai,Svetlana Starikova +10 more
TL;DR: In this article, the authors investigate the kinematic state of Abell 133 and identify the physical locations of filamentary structure in the galaxy distribution, and find no velocity offset between the central galaxy and the cluster.
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The Infrared Jet in 3C 31
Lauranne Lanz,Amelia Bliss,Ralph P. Kraft,Mark Birkinshaw,Dharam V. Lal,William R. Forman,Christine Jones,Diana M Worrall +7 more
TL;DR: In this paper, infrared and X-ray emission from the jet of the nearby Fanaroff-Riley type I radio galaxy 3C 31 was detected with the IRAC instrument on Spitzer at 4.5?m, 5.8?m and 8.0?m out to 30'' (13?kpc) from the nucleus.
Characteristics of Jupiter’s X-ray auroral hot spot emissions using Chandra
Dale Weigt,C. M. Jackman,Marissa F. Vogt,H. Manners,William Dunn,G. R. Gladstone,G. R. Gladstone,Ralph P. Kraft,Graziella Branduardi-Raymont,C. K. Louis,S. C. McEntee,S. C. McEntee +11 more
TL;DR: In this article, the authors focus on the morphology and dynamics of the jovian northern hot spot (NHS) using Chandra data and characterize the typical and extreme behaviour of the concentrated NHS emissions across the catalogue.
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"Normal" FRII Radio Galaxies as a Probe of the Nature of X-Shaped Radio Sources
TL;DR: In this article, a multi-wavelength radio study of a sample of nearby Fanaroff-Riley class II (FRII) radio galaxies, matched with the sample of known X-shaped radio sources in size, morphological properties and redshift, using new giant metrewave Radio Telescope (GMRT) data and archival data from the Very Large Array (VLA).
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Chemical abundances in the outskirts of nearby galaxy groups measured with joint Suzaku and Chandra observations
Arnab Sarkar,Yuanyuan Su,N. Truong,Scott W. Randall,F. Mernier,Fabio Gastaldello,Veronica Biffi,Ralph P. Kraft +7 more
TL;DR: In this article , the authors report results from deep Suzaku and mostly snapshot Chandra observations of four nearby galaxy groups: MKW4, Antlia, RXJ1159+5531, and ESO3060170.
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