HETG Observation of AN Unusual Spectral Feature in the Narrow-Line Seyfert 1 Galaxy Ark 564

Details HETG Observation of AN Unusual Spectral Feature in the Narrow-Line Seyfert 1 Galaxy Ark 564 HETG Observation of AN Unusual Spectral Feature in the Narrow-Line Seyfert 1 Galaxy Ark 564

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..135l&link_type=abstract

Chandra Proposal ID #01700703

Physics

Chandra Proposal Id #01700703

Scientific paper

We propose a 50 ks HETG observation to identify an unusual emission feature near 1 keV found in the ASCA and SAX spectra of the bright narrow-line Seyfert 1 galaxy Ark 564. This could be the first clear evidence of the predicted soft X-ray line emission from an ionized accretion disk, which would support the idea that NLS1s are characterized by a high accretion rate. Alternatively, we may discover that this feature originates in emission from a warm absorber with unusual ionization conditions, thereby permitting our study of a broader range of warm absorber behavior. Ark 564 is bright enough that we will also be able to study its X-ray variability and search for the nonlinearity which may be a signature of NLS1s.

Affiliated with

Also associated with

No associations

Rating

HETG Observation of AN Unusual Spectral Feature in the Narrow-Line Seyfert 1 Galaxy Ark 564 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with HETG Observation of AN Unusual Spectral Feature in the Narrow-Line Seyfert 1 Galaxy Ark 564, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HETG Observation of AN Unusual Spectral Feature in the Narrow-Line Seyfert 1 Galaxy Ark 564 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1553636