Ultraviolet Spectropolarimetry of AGNs with the Faint Object Spectrograph: MRK 486 and I ZW 1

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

We present ultraviolet spectropolarimetry of the highly polarized Seyfert 1 nucleus of Mrk 486 and the low-polarization Seyfert 1/QSO I Zw 1. These data were obtained using the Faint Object Spectrograph aboard the Hubble Space Telescope and span lambda lambda 1600--3300. The high degree of linear polarization (P ~ 2--4%) observed for Mrk 486 at optical wavelengths continues into the UV where P reaches ~ 7--8% at 2000 Angstroms . We detect no difference between the polarization of prominent ultraviolet emission lines and the UV continuum. This is in contrast to previous optical investigations that have shown significant deviations from the local continuum polarization position angle at Hα and Hβ . The UV polarization of I Zw 1 is enigmatic given that optical observations have revealed a strong increase in polarization toward the blue in this object. However, no significant polarization was detected for this object in the HST data. The UV results will be used to test and constrain scattering models proposed to explain the origin of the polarized flux in these AGNs. This work is supported by NASA grant NAG 5-1630.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Ultraviolet Spectropolarimetry of AGNs with the Faint Object Spectrograph: MRK 486 and I ZW 1 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 Ultraviolet Spectropolarimetry of AGNs with the Faint Object Spectrograph: MRK 486 and I ZW 1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultraviolet Spectropolarimetry of AGNs with the Faint Object Spectrograph: MRK 486 and I ZW 1 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1323293

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.