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Start Date:1956 |
Creator:Papers of Woodruff T. Sullivan III Series:Collected Publications Series Unit:Books Unit Type:Text |
Description:In Russian
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Start Date:2001 |
Creator:Papers of Kenneth I. Kellermann Series:Conferences and Talks Series Unit:Talks Unit Type:Text |
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Start Date:1953? |
Creator:Papers of Grote Reber Series:Correspondence Series Unit:Research Corporation Correspondence Unit Subunit:Miscellaneous Research Corporation Material Subunit Type:Text |
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Creator:Papers of Kenneth I. Kellermann Series:Conferences and Talks Series Unit:Talks Unit Type:Text |
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Start Date:1997 |
Creator:Papers of Kenneth I. Kellermann Series:Conferences and Talks Series Unit:Talks Unit Type:Text |
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Start Date:1974 |
Creator:Papers of Woodruff T. Sullivan III Series:Collected Publications Series Unit:Bibliographies Unit Type:Text |
Description:Bibliography covers 1952-1974
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Start Date:1990 |
Creator:Papers of Kenneth I. Kellermann Series:Conferences and Talks Series Unit:Talks Unit Type:Text |
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Start Date:1965 |
Creator:Papers of John W. Findlay Series:NRAO Instruments and Projects Series Unit:Very Large Array (VLA) Unit Type:Text Subject:Instruments--Very Large Array (VLA) |
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Creator:Papers of Kenneth I. Kellermann Series:Conferences and Talks Series Unit:Talks Unit Type:Text |
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Start Date:1984 |
Creator:Papers of Kenneth I. Kellermann Series:Conferences and Talks Series Unit:Talks Unit Type:Text |
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Creator:Papers of Kenneth I. Kellermann Series:Conferences and Talks Series Unit:Talks Unit Type:Text |
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Start Date:1952-04-26 |
Creator:Papers of Grote Reber Series:Newspaper and Magazine Clippings Series Unit:Miscellaneous Newspaper and Magazine Clippings Unit Type:Text |
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Start Date:1952-04-26 |
Creator:Papers of Grote Reber Series:Newspaper and Magazine Clippings Unit:Miscellaneous Newspaper and Magazine Clippings Type:Text |
Description:Jodrell Bank telescope
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Creator:Legacy Astronomical Images Series:Active Galactic Nuclei Series Unit:Radio Galaxies Unit Type:Legacy Astronomical Image |
Description:VLBA 2 cm image of the radio galaxy 0402+379, which hosts two active supermassive black holes at its center. The location of each supermassive black hole is indicated on the image by an artist's conception of an accretion disk with narrow twin jets. These results are based upon multi-epoch, multi-frequency monitoring with the VLBA. The projected separation between the two black holes is 7.3 parsecs, making this the most compact binary black hole pair yet found by more than two orders of magnitude. The combined mass of the system is estimated at ~1.5 x 10^8 solar masses, and assuming equal masses the orbital period is 150,000 years. Though gravitational radiation from this system is not yet enough to cause the orbit to decay, the discovery of this system has implications for the number of compact binary black holes that might be detectable sources of gravitational radiation. [show more]
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Start Date:1993 |
Creator:Papers of Donald C. Backer Series:Radio Astronomy Research Series Unit:Pulsars Unit |
Description:Notes
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Start Date:1960-10 End Date:1960-12 |
Creator:Papers of David S. Heeschen Series:Scientific Research Series Unit:Discrete Sources Research Type:Text |
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Start Date:1978-05-20 End Date:1987-12-14 |
Creator:Papers of Bernard F. Burke Series:Radio Astronomy Research Series Type:Text |
Description:Correspondence, figures, viewgraphs, preprints, observation applications, reports
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Start Date:1979-05-31 |
Creator:Papers of Kenneth I. Kellermann Series:Kellermann Publications Series Unit:Star Noise Unit Type:Text |
Description:Article from Nature on the subject by D. Walsh, R. F. Carswell and R. J. Weymann, 31 May 1979. Also includes a brief article by F. G. Smith commending the discovery
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Start Date:1981-08-14 End Date:1983-11-15 |
Creator:Papers of Bernard F. Burke Series:Radio Astronomy Research Series Type:Text |
Description:Report, figures, reprints, preprint (Burke preprint)
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Start Date:1985 |
Creator:Papers of Bernard F. Burke Series:Burke Publications Series Type:Text |
Description:Reprints and figures
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Start Date:1988-02-02 |
Creator:Papers of Bernard F. Burke Series:Radio Astronomy Research Series Type:Text |
Description:Correspondence, preprints, figures, notes
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Start Date:1985-02-10 End Date:1985-02-11 |
Creator:Papers of Bernard F. Burke Series:Radio Astronomy Research Series Type:Text |
Description:Computer data, figures, notes
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Creator:Papers of Bernard F. Burke Series:Photographs Series Type:Still Image |
Description:Undated figure
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Start Date:1986 |
Creator:Papers of Kenneth I. Kellermann Series:Kellermann Publications Series Unit:Star Noise Unit Type:Text |
Description:Write up of a speech given by Dennis Walsh, n.d. but sometime after 1986 based on citations
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Start Date:Feb-49 |
Creator:Papers of Kenneth I. Kellermann Series:Kellermann Publications Series Unit:Star Noise Unit Type:Text |
Description:From The Radio-Frequency Link-Spectrum of Atomic Hydrogen early publication of findings for the Council for Scientific and Industrial Research by J. P. Wild, February 1949. Includes five unnumbered pages of front matters and figures.
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