STUDY OF THE POST-FLARE LOOPS ON 29 JULY 1973 .2. PHYSICAL PARAMETERS IN THE X-RAY LOOPS

被引:24
作者
PETRASSO, RD
NOLTE, JT
GERASSIMENKO, M
KRIEGER, AS
KROGSTAD, R
SEGUIN, FH
SVESTKA, Z
机构
[1] SPACE RES LAB,UTRECHT,NETHERLANDS
[2] UNIV CALIF SAN DIEGO,DEPT PHYS,LA JOLLA,CA 92093
关键词
D O I
10.1007/BF00150140
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We use the filter ratio method of analysis to determine spatially resolved values of plasma parameters in the X-ray emitting post-flare loop system which developed on 29 and 30 July 1973. We find that the loops were hotter and had higher plasma pressure at their tops than near their footpoints. The loop tops were at nearly the same temperature at different places 3 hr after the flare maximum and were also at nearly this same temperature 3 and 8 hr later. Variations in brightness transverse to the loops were due to variations in emission measure. We show by consideration of radiative losses alone that energy must have been added to the hottest part of the flare, at the tops of the loops, late into the decay phase of the flare. © 1979 D. Reidel Publishing Co.
引用
收藏
页码:133 / 144
页数:12
相关论文
共 25 条
[1]   EVOLUTION OF HIGH-TEMPERATURE PLASMA IN 15 JUNE 1973 FLARE [J].
CHENG, CC .
SOLAR PHYSICS, 1977, 55 (02) :413-429
[2]   MULTITHERMAL ANALYSIS OF SOLAR X-RAY-EMISSION [J].
DERE, KP ;
HORAN, DM ;
KREPLIN, RW .
SOLAR PHYSICS, 1974, 36 (02) :459-472
[3]   STRUCTURE AND DYNAMICS OF A SOLAR-FLARE - X-RAY AND XUV OBSERVATIONS [J].
DERE, KP ;
HORAN, DM ;
KREPLIN, RW .
ASTROPHYSICAL JOURNAL, 1977, 217 (03) :976-+
[4]   XUV SPECTRA OF 1973 JUNE 15 SOLAR-FLARE OBSERVED FROM SKYLAB .1. ALLOWED TRANSITIONS IN CHROMOSPHERIC AND TRANSITION ZONE IONS [J].
DOSCHEK, GA ;
FELDMAN, U ;
ROSENBERG, FD .
ASTROPHYSICAL JOURNAL, 1977, 215 (01) :329-&
[5]   XUV SPECTRA OF 1973 JUNE 15 SOLAR-FLARE OBSERVED FROM SKYLAB .2. INTERSYSTEM AND FORBIDDEN TRANSITIONS IN TRANSITION ZONE AND CORONAL IONS [J].
FELDMAN, U ;
DOSCHEK, GA ;
ROSENBERG, FD .
ASTROPHYSICAL JOURNAL, 1977, 215 (02) :652-665
[6]   QUANTITATIVE INTERPRETATION OF SOLAR X-RAY IMAGES [J].
GERASSIMENKO, M ;
NOLTE, JT .
SOLAR PHYSICS, 1978, 60 (02) :299-310
[7]   DETERMINATION OF ENERGY OR PRESSURE OF A SOLAR X-RAY STRUCTURE USING X-RAY FILTERGRAMS FROM A SINGLE FILTER [J].
KAHLER, S .
SOLAR PHYSICS, 1976, 48 (02) :255-259
[8]   RADIATION FROM A HOT, THIN PLASMA FROM 1 TO 250-A [J].
KATO, T .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1976, 30 (04) :397-449
[9]   EUV STRUCTURE OF A SMALL FLARE [J].
LEVINE, RH .
SOLAR PHYSICS, 1978, 56 (01) :185-203
[10]   PHYSICAL PARAMETERS IN LONG-DECAY CORONAL ENHANCEMENTS [J].
MACCOMBIE, WJ ;
RUST, DM .
SOLAR PHYSICS, 1979, 61 (01) :69-88