Solar coronal temperature diagnostics using emission line from multiple stages of ionization of iron

Details Solar coronal temperature diagnostics using emission line from multiple stages of ionization of iron Solar coronal temperature diagnostics using emission line from multiple stages of ionization of iron

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...425..343b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 425, no. 1, p. 343-347

Astronomy and Astrophysics

Astrophysics

13

Astrophysics, Emission Spectra, Ionization, Iron, Line Spectra, Solar Corona, Solar Temperature, Atomic Interactions, Extreme Ultraviolet Radiation, Imaging Spectrometers, Solar Wind, Ultraviolet Telescopes

Scientific paper

We obtained spatially resolved extreme-ultraviolet (EUV) spectra of AR 6615 on 1991 May 7 with NASA/ Goddard Space Flight Center's Solar EUV Rocket Telescope and Spectrograph (SERTS). Included are emission lines from four different stages of ionization of iron: Fe(+15) lambda 335 A, Fe(+14) lambda 327 A, Fe(+13) lambda 334 A, and Fe(+12) lambda 348 A. Using intensity ratios from among these lines, we have calculated the active region coronal temperature along the Solar Extreme Ultraviolet Telescope and Spectrograph (SERTS) slit. Temperatures derived from line ratios which incorporate adjacent stages of ionization are most sensitive to measurement uncertainties and yield the largest scatter. Temperatures derived from line ratios which incorporate nonadjacent stages of ionization are less sensitive to measurement uncertainties and yield little scatter. The active region temperature derived from these latter ratios has an average value of 2.54 x 106 K, with a standard deviation approximately 0.12 x 106 K, and shows no significant variation with position along the slit.

Affiliated with

Also associated with

No associations

Rating

Solar coronal temperature diagnostics using emission line from multiple stages of ionization of iron 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 Solar coronal temperature diagnostics using emission line from multiple stages of ionization of iron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solar coronal temperature diagnostics using emission line from multiple stages of ionization of iron will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1255929