Search Results - (Author, Cooperation:R. G. McMahon)

Showing 1 - 5 results of 5, query time: 0.10s Refine Results
  1. 1
    Staff View
    Publication Date:
    2011-07-02
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Warren, S. J. ; Hewett, P. C. ; Irwin, M. J. ; McMahon, R. G. ; Bridgeland, M. T. ; Bunclark, P. S. ; Kibblewhite, E. J.

    [s.l.] : Nature Publishing Group
    Published 1987
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] At present, quasars are the only objects that can be found in significant numbers at large redshifts and are useful in a variety of studies related to the early history of the Universe. Individual quasars are interesting in themselves and they may also be used as probes, to study the properties of ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  3. 3
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The ultimate fate of the Universe, infinite expansion or a big crunch, can be determined by using the redshifts and distances of very distant supernovae to monitor changes in the expansion rate. We can now find large numbers of these distant supernovae, and measure their redshifts and ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  4. 4
    Hazard, C. ; McMahon, R. G. ; Sargent, W. L. W.

    [s.l.] : Nature Publishing Group
    Published 1986
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] Up to z -3.3, searches for high-z QSOs by their Ly-a + N v emission are best carried out on Illa-J prism plates, which have a red cutoff to their spectral response at -5,200 A. The IIIa-F plates, with a corresponding limit at 6,800 A, extend the range above z -3.3 to a possible maximum of z = 4.6. ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  5. 5
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] On the release of the Infrared Astronomy Satellite (IRAS) Faint Source Survey (FSS), we embarked on a redshift survey of a large sample (1,400) of galaxies identified with FSS sources brighter than 0.2 Jy at 60 |xm, covering an area of 700 square degrees1. We have obtained redshifts for 95% of the ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses