Simultaneous Chandra, HST and FUSE Observations of Warm Absorbers in AGN

Details Simultaneous Chandra, HST and FUSE Observations of Warm Absorbers in AGN Simultaneous Chandra, HST and FUSE Observations of Warm Absorbers in AGN

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..942k&link_type=abstract

Chandra Proposal ID #03700611

Computer Science

Chandra Proposal Id #03700611

Scientific paper

Photoionized, warm absorbing gas is an important component of the nuclear structure of AGN. About half of all low-z AGN show X-ray warm absorbers and high-ionization UV absorption lines, but the relationship of the X-ray absorber to the UV-absorbing gas is not clear. Only a handful of high-spectral-resolution observations with Chandra, HST, or FUSE currently exist (NGC4151, NGC3516, NGC3783, NGC5548, Mrk 509). These show a diversity of kinematic structure and ionization states in the absorbers. We propose to increase significantly the sample of low-redshift AGN studied at high spectral resolution in the X-ray and the UV by obtaining simultaneous HST, Chandra, and FUSE spectra of NGC5548 and Mrk279. Our HETGS spectra will also probe the origin of narrow Fe Kalpha emission in Seyfert 1s.

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