SUMMARY OF SEQUENCE NUMBER 700138

SUMMARY OF SEQUENCE NUMBER 700138

Title: THE ULTRA-HIGH VELOCITY (-56,000 KM/S) ABSORBER IN THE QSO PG2302+029

Observer: HAMANN

Subject Category: Active Galaxies and Quasars

Seq: 700138 ObsId: 00833

Long-term Plan bin: 5-Jan-2000

ABSTRACT

We will combine new AXAF/ACIS-S-BI spectra with existing and forthcoming HST UV spectra to study the extreme high-velocity absorber (detached by ~56,000 km/s from the emission redshift) in the bright (V = 16.0) QSO, PG 2302+029. The UV line profiles have moderate widths (FWHM ~ 4000 km/s) but the outflow velocities are higher than in any previously measured system. Our combined X-ray and UV observations should 1) determine for the first time if there is OUTFLOWING X-ray absorption in QSOs, 2) improve our understanding of QSO metal abundances, and 3) yield the best information to date on the physical conditions, the acceleration mechanism(s), and the relationship between UV and X-ray absorption in QSO outflows.

TARGET SUMMARY

TARGET NAME RADEC TIME SI GRAT TYPE TC ROLL PRE PHASE MULTI PRI
PG 2302+029
346.187083
3.196056
50.00000
ACIS-S
NONE
GO
no
no
no
no
no
5

IMAGES

(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)

Roll/Visibility

PARAMETERS

Obscat Parameters