Oscillations and running waves observed in sunspots. II. Photospheric waves

Details Oscillations and running waves observed in sunspots. II. Photospheric waves Oscillations and running waves observed in sunspots. II. Photospheric waves

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...363..306g&link_type=abstract

Astronomy and Astrophysics, v.363, p.306-310 (2000)

Astronomy and Astrophysics

Astrophysics

14

Sun: Sunspots, Sun: Oscillations

Scientific paper

To continue our study of waves related to sunspots in the photosphere, we analyzed CCD, high resolution sunspot observations obtained in the Fe i 557.6 nm line. We produced ``time slice images" which reveal inward slow propagating waves in the photospheric penumbra and outward propagating waves in the area around the sunspot. The phase velocity of the waves is near 0.5 km s-1 in both cases and their horizontal wavelength about 2500 km. The waves could be related either to solar p-modes or to the subphotospheric layer large-scale convection. Based on observations performed on the NSO/SPO Dunn's Solar Telescope (DST).

Affiliated with

Also associated with

No associations

Rating

Oscillations and running waves observed in sunspots. II. Photospheric waves 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 Oscillations and running waves observed in sunspots. II. Photospheric waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oscillations and running waves observed in sunspots. II. Photospheric waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1146848