Chromospheric jets around the edges of sunspots
نویسندگان
چکیده
منابع مشابه
Two-dimensional spectral observations of sunspots in chromospheric lines
We present two-dimensional spectral observations of two closely located small sunspots in chromospheric lines. Line asymmetries and shifts are derived for the Ca ii K line in particular. It is found that the majority of Ca ii K profiles show a blue asymmetry. Red asymmetry may also appear, but only in some tiny regions. Some ephemeral blue asymmetry patches are found in the umbrae, which seem t...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201219137