The Proximity E ect of QSO Metal Line Absorption Systems on Lyman
نویسنده
چکیده
Accepted xx-xx-xxxx; Received xx-xx-xxxx ABSTRACT The proximity eeect of metal line absorption systems in spectra of high redshift quasars and quasar pairs is investigated through the distribution of Ly forests. No strong proximity eeect is found down to 500 km/sec away from a metal line absorption system for lyman clouds with 13:3 log N HI < 13:8 at a redshift of 3. Its implication on properties of high redshift galaxies and Ly clouds is discussed. More high resolution spectra of high redshift quasars and pairs of quasars (whose lines of sight are separated by 0:3h 1 to 1h 1 Mpc) are needed so that the proximity eeect can be reliably determined for Ly clouds with various N HI and down to a closer distance.
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