Spectroscopic determination of intensities of umbral bright features and adjacent background

Details Spectroscopic determination of intensities of umbral bright features and adjacent background Spectroscopic determination of intensities of umbral bright features and adjacent background

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...260..437s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 260, no. 1-2, p. 437-440.

Astronomy and Astrophysics

Astrophysics

11

Brightness Distribution, Solar Spectra, Sunspots, Umbras, Photosphere, Solar Atmosphere, Stellar Models

Scientific paper

Profiles of the Na I D doublet in three bright features (clusters of umbral dots), located in a relatively dark umbra, were analyzed by means of the 'local two-component modeling' to obtain the 'true' continuum intensities and temperatures of the bright features and their dark surroundings (background). The intensities of two central and one peripheral bright feature were 0.31 (background 0.11), 0.33 (0.13), and 0.40 (0.17), respectively. For the ratio of the object and background intensity (assumed to be constant, but unknown until now) the value of 2.6 +/- 0.2 was obtained.

Affiliated with

Also associated with

No associations

Rating

Spectroscopic determination of intensities of umbral bright features and adjacent background 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 Spectroscopic determination of intensities of umbral bright features and adjacent background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic determination of intensities of umbral bright features and adjacent background will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1203181