The current e-mail address of PI, Tae-Sun Kim, in the STScI database is an older one. I updated the contact information, but somehow seemed to miss the e-mail address update. I updated it again, but approval is still pending. I wonder whether later e-mails from STScI will use the updated e-mail. -271880883 Assigned ID: 724 ----- Attempting Submission 1 (Fri Apr 07 18:39:51 GMT 2017) ----- We propose to conduct the first systematic survey of proximate absorbers within 5000 km/sec of AGN emission redshifts, using ~330 spectra of Seyferts and QSOs at z(em)<0.4 in the COS/FUSE archives. These absorbers are produced by 1) intrinsic weak AGN outflows, 2) the interstellar medium (ISM) or circumgalactic medium (CGM) of host galaxies or 3) the intergalactic medium (IGM) around AGNs. Weak outflows are generally considered to be energetically unimportant for feedbacks, but still a sensitive diagnostic of the ionization structure and kinematics of gas near the AGN engine. Together with weak outflows, proximate ISM/CGM/IGM absorbers provide the physical conditions of gas in the AGN environment. At low redshifts, proximate absorbers have been relatively less studied, as they require high-quality data and reliable physical models to interpret. Our immediate goal is 1) to classify proximate absorbers based on HI, metals and evidence of AGN partial coverage, 2) to quantify their detection rate and correlate between absorbers and intrinsic AGN properties to test the AGN unified schemes, 3) to derive absorber physical conditions from CLOUDY photionization modeling, 4) to constrain the importance of weak outflows to AGN feedback by estimating their mass outflow rates, and 5) to compare low-z and high-z proximate absorbers to study their evolution over cosmic time. Galaxies and the IGM 0 Regular false true false SUPPORTED