Stokes Asymmetries In and Around Sunspots

Details Stokes Asymmetries In and Around Sunspots Stokes Asymmetries In and Around Sunspots

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.3802l&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #38.02; Bulletin of the American Astronomical Society, Vol. 34, p.698

Astronomy and Astrophysics

Astronomy

Scientific paper

In an ideal homogeneous atmosphere with minimal complications from gradients or unresolved features, photospheric Stokes Spectra should have a straightforward pattern that is symmetric in wavelength for linear polarization and anti-symmetric for circular. Deviations from these idealized shapes can indicate gradients in the magnetic field, in the velocity of plasma flows (see, e.g., Leka & Steiner 2001), and completely different atmospheres that are unresolved within the pixel. Using Stokes spectra from the NSO/HAO Advanced Stokes Polarimeter of a sunspot obtained with high (sub-arcsecond) spatial resolution, we examine the systematic patterns of asymmetries and multiple-lobes in the spectra over the sunspot. Initial results indicate the presence of high-velocity and even supersonic flows in and around sunspot penumbrae, accompanied by multiple magnetic components (of the same and/or opposite sign) throughout the sunspot structures. This work was funded by NSF-ATM970782.

Affiliated with

Also associated with

No associations

Rating

Stokes Asymmetries In and Around Sunspots 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 Stokes Asymmetries In and Around Sunspots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stokes Asymmetries In and Around Sunspots will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1718504