White-light continuum in stellar flares

被引：4
|
作者：
Kowalski, Adam F. [1 ,2 ]
机构：
[1] Univ Maryland, Dept Astron, Stadium Dr, College Pk, MD 20742 USA
[2] NASA, Goddard Space Flight Ctr, Heliophys Sci Div, Code 671,8800 Greenbelt Rd, Greenbelt, MD 20771 USA
来源：
SOLAR AND STELLAR FLARES AND THEIR EFFECTS ON PLANETS | 2016年 / 11卷 / S320期
关键词：
acceleration of particles; atomic processes; hydrodynamics; radiative transfer; stars: flare; low-mass; chromospheres; Sun: flares; LOOP RADIATIVE HYDRODYNAMICS; X-RAY; MULTIWAVELENGTH OBSERVATIONS; SOLAR-FLARES; SPECTRA; MODELS; DYNAMICS; LINES;
D O I：
10.1017/S1743921316000028
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this talk, we discuss the formation of the near-ultraviolet and optical continuum emission in M dwarf flares through the formation of a dense, heated chromospheric condensation. Results are used from a recent radiative-hydrodynamic model of the response of an M dwarf atmosphere to a high energy flux of nonthermal electrons. These models are used to infer the charge density and optical depth in continuum emitting flare layers from spectra covering the Balmer jump and optical wavelength regimes. Future modeling and observational directions are discussed.
引用
收藏
页码：259 / 267
页数：9
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