Polarized Broad H-alpha Emission from the LINER Nucleus of NGC 1052

Details Polarized Broad H-alpha Emission from the LINER Nucleus of NGC 1052 Polarized Broad H-alpha Emission from the LINER Nucleus of NGC 1052

1999-02-12

arxiv.org/abs/astro-ph/9902193v1

Astronomy and Astrophysics

Astrophysics

6 pages, 2 figures, prepared using the emulateapj style file, accepted for publication in The Astrophysical Journal Letters

Scientific paper

10.1086/311976

Optical spectropolarimetry of the nucleus of the LINER NGC 1052, obtained at the Keck Observatory, reveals a rise in polarization in the wings of the H-alpha line profile. The polarization vector of H-alpha is offset by 67 degrees from the parsec-scale radio axis and by 83 degrees from the kiloparsec-scale radio axis, roughly in accord with expectations for scattering within the opening cone of an obscuring torus. The broad component of H-alpha has FWHM ~ 2100 km/s in total flux and FWHM ~ 5000 km/s in polarized light. Scattering by electrons is the mechanism most likely responsible for this broadening, and we find T_e ~ 10^5 K for the scattering medium, similar to values observed in Seyfert 2 nuclei. This is the first detection of a polarized broad emission line in a LINER, demonstrating that unified models of active galactic nuclei are applicable to at least some LINERs.

Affiliated with

Also associated with

No associations

Rating

Polarized Broad H-alpha Emission from the LINER Nucleus of NGC 1052 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 Polarized Broad H-alpha Emission from the LINER Nucleus of NGC 1052, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarized Broad H-alpha Emission from the LINER Nucleus of NGC 1052 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-362422