Extension of Lyman-alpha Complexes from HST Observations of Four Pairs of Quasars

Details Extension of Lyman-alpha Complexes from HST Observations of Four Pairs of Quasars Extension of Lyman-alpha Complexes from HST Observations of Four Pairs of Quasars

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002sf2a.conf...37a&link_type=abstract

SF2A-2002: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 24-29, 2002, Eds.: F. Combes and D. Barret,

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present HST observations of four pairs of quasars with 2,3 arcmin angular separation and redshift z 0.9. We apply the Nearest-Neighbor method to the sample of observed Lyman-alpha lines with rest equivalent width greater than 0.3 Angstrum. According to Monte-Carlo simulations, we detect an excess of coincidences with velocity difference smaller than 500 km/s.

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