Intrinsic UV and X-ray Absorption in QSOs

Details Intrinsic UV and X-ray Absorption in QSOs Intrinsic UV and X-ray Absorption in QSOs

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7356h&link_type=abstract

HST Proposal ID #7356

Physics

Hst Proposal Id #7356 Agn/Quasars

Scientific paper

Intrinsic UV absorption lines in QSOs could identify ubiquitous and relatively massive gas components near QSOs. Most of the absorption lines are blueshifted and clearly form in high-velocity ejecta, but little else is known about the physical nature of the absorbers. Several low-redshift QSOs and Seyfert 1 galaxies exhibit blueshifted absorption lines plus continuous soft X-ray absorption due to highly ionized gas {the so-called "warm" absorber}, which has lead to speculation that the UV and X-ray features identify the same environment. We propose STIS observations of the "associated" {za ze} lines in a small number of QSOs with redshifts {0.5

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