New Insights into QSO Absorption Lines from Multiple Sightlines

Details New Insights into QSO Absorption Lines from Multiple Sightlines New Insights into QSO Absorption Lines from Multiple Sightlines

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...190.4302c&link_type=abstract

American Astronomical Society, 190th AAS Meeting, #43.02; Bulletin of the American Astronomical Society, Vol. 29, p.837

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Scientific paper

We present Keck HIRES and KPNO 4m/RC Spec spectra of the close QSO triplet 1623+27 (z~ 2.5, separations s= 127-177 arcsec) and close QSO pair 1517+239, and resulting new insights into the clustering, shape and size of both C IV and Ly alpha absorption line objects. The cross-correlation of C IV absorbers between sightlines is much weaker than earlier measurements on corresponding scales along single sightlines of the two-point correlation function xi_a . Internal velocity splittings and/or large deviations from the Hubble flow predominate in establishing xi_a of C IV absorbers, and that spatial clustering alone cannot explain the strong xi_a for single-sightline velocity splittings 200 km s(-1)

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