Method of identifying absorption systems in quasar spectra. II. Application to OQ 172 and discussion

Details Method of identifying absorption systems in quasar spectra. II. Application to OQ 172 and discussion Method of identifying absorption systems in quasar spectra. II. Application to OQ 172 and discussion

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983cha%26a...7..280c&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 7, Issue 4, p. 280-287.

Astronomy and Astrophysics

Astrophysics

Scientific paper

1. According to the principle and procedure given in Ref. [1], we have identified the absorption systems in the spectrum of the high-redshift quasar OQ 172 (PKS 1442 + 101). Four systems were found. Their redshifts are 2.07010, 2.56312, 0.17546 and 0.17910. 2. We have checked the model of random identification in Ref. [1] using Monte Carlo methods [2]. The results were satisfactory. 3. We discuss the advantages of the method of [1] and the problems that await further investigation. It is stressed that the method of [1] avoids certain selection effects that affect the usual methods.

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