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
相关论文
共 50 条
  • [1] RADIATIVE HYDRODYNAMIC SIMULATION OF THE CONTINUUM EMISSION IN SOLAR WHITE-LIGHT FLARES
    Cheng, J. X.
    Ding, M. D.
    Carlsson, Mats
    ASTROPHYSICAL JOURNAL, 2010, 711 (01) : 185 - 191
  • [2] The Sun as a star: observations of white-light flares
    Kretzschmar, M.
    ASTRONOMY & ASTROPHYSICS, 2011, 530
  • [3] Parametric study of the continuum emission of white-light flares
    Ding, MD
    Fang, C
    ASTRONOMY & ASTROPHYSICS, 1996, 314 (02): : 643 - 649
  • [4] A Possible Mechanism for the "Late Phase" in Stellar White-light Flares
    Yang, Kai E.
    Sun, Xudong
    Kerr, Graham S.
    Hudson, Hugh S.
    ASTROPHYSICAL JOURNAL, 2023, 959 (01)
  • [5] Heating in the lower atmosphere and the continuum emission of solar white-light flares
    Ding, MD
    Fang, C
    Yun, HS
    ASTROPHYSICAL JOURNAL, 1999, 512 (01) : 454 - 457
  • [6] The Energetics of White-light Flares Observed by SDO/HMI and RHESSI
    Huang, Neng-Yi
    Xu, Yan
    Wang, Haimin
    RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2016, 16 (11)
  • [7] Hydrogen Emission in Type II White-light Solar Flares
    Prochazka, Ondrej
    Reid, Aaron
    Mathioudakis, Mihalis
    ASTROPHYSICAL JOURNAL, 2019, 882 (02)
  • [8] WHITE-LIGHT FLARES OBSERVED BY YOHKOH
    HUDSON, HS
    ACTON, LW
    HIRAYAMA, T
    UCHIDA, Y
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 1992, 44 (05) : L77 - L81
  • [9] On the origin of solar white-light flares
    Gan, WQ
    Hénoux, JC
    Fang, C
    ASTRONOMY & ASTROPHYSICS, 2000, 354 (02) : 691 - 696
  • [10] WHITE-LIGHT FLARES ON COOL STARS IN THE KEPLER QUARTER 1 DATA
    Walkowicz, Lucianne M.
    Basri, Gibor
    Batalha, Natalie
    Gilliland, Ronald L.
    Jenkins, Jon
    Borucki, William J.
    Koch, David
    Caldwell, Doug
    Dupree, Andrea K.
    Latham, David W.
    Meibom, Soeren
    Howell, Steve
    Brown, Timothy M.
    Bryson, Steve
    ASTRONOMICAL JOURNAL, 2011, 141 (02)