𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Spectrograph distortion in sunspot line profiles

✍ Scribed by V. Martínez Pillet; J. Sánchez Almeida

Publisher
Springer
Year
1991
Tongue
English
Weight
391 KB
Volume
134
Category
Article
ISSN
0038-0938

No coin nor oath required. For personal study only.

✦ Synopsis

We show empirically how the effect of the instrumental polarization of the spectrograph can distort the shape of the intensity profiles in sunspots. In order to avoid the problems an analysis of the polarization of the. light should be performed at the entrance slit of the spectrograph.

📜 SIMILAR VOLUMES

Surface distortions of asymmetric line p
Surface distortions of asymmetric line profiles
✍ P.T. Leung; Thomas F. George 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 319 KB

Distortions of asymmetric Fano protiles for a molecular system above a metallic grating surface are investigated within a simple model. A double-peak feature as well as a shift of the profile window are observed due to the surface plasmon mode.

On AlF lines in sunspots
On AlF lines in sunspots
✍ P. S. Murty 📂 Article 📅 1977 🏛 Springer 🌐 English ⚖ 93 KB

intensity factors for bands of the C-A transition of the A1F molecule are calculated. A reinvestigation for the lines of (0, 0) band of the C-A system in sunspot spectra is suggested, so as to resolve the question~tble existence of A1F absorption lines in sunspots.

The Mgiih line in sunspot umbrae
The Mgiih line in sunspot umbrae
✍ J. B. Gurman 📂 Article 📅 1984 🏛 Springer 🌐 English ⚖ 152 KB

Observations of the MglI h line in the umbrae of five sunspots show a spread of a factor of 3 in peak intensity. This range is larger than, and brackets, the range found in a single umbra by Lites and Skumanich (1982).