Synchrotron emission from circumstellar disks around massive stars

被引：7
作者：
Shchekinov, YA [1 ]
Sobolev, AM
机构：
[1] Rostov State Univ, Dept Phys, Rostov Na Donu 344090, Russia
[2] Isaac Newton Inst Chile, Rostov Na Donu, Russia
[3] Ural State Univ, Astron Observ, Ekaterinburg 620083, Russia
来源：
ASTRONOMY & ASTROPHYSICS | 2004年 / 418卷 / 03期
关键词：
accretion; accretion disks; stars : circumstellar matter; acceleration of particles;
D O I：
10.1051/0004-6361:20035923
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We argue that the interaction of stellar wind with the surface of a circumstellar accretion (or protoplanetary) disk can result in the acceleration of relativistic electrons in an external layer of the disk, and produce synchrotron radiation. Conservative estimates give a total synchrotron luminosity L(s)similar to10(-5) L-circle dot for a central star with (M)over dot=10(-6) M-circle dot yr(-1), comparable with the value observed around the TW object in the W3(OH) region.
引用
收藏
页码：1045 / 1050
页数：6
相关论文
共 35 条
  • [1] ALCOLEA J, 1992, ASTROPHYSICAL MASERS, P225
  • [2] Radiation-induced warping of protostellar accretion disks
    Armitage, PJ
    Pringle, JE
    [J]. ASTROPHYSICAL JOURNAL, 1997, 488 (01) : L47 - L50
  • [3] THEORY OF EXTRAGALACTIC RADIO-SOURCES
    BEGELMAN, MC
    BLANDFORD, RD
    REES, MJ
    [J]. REVIEWS OF MODERN PHYSICS, 1984, 56 (02) : 255 - 351
  • [4] BURROWS CJ, 1995, BAAS, V187, P32
  • [5] ON NONTHERMAL PARTICLE GENERATION IN SUPERBUBBLES
    BYKOV, AM
    FLEISHMAN, GD
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1992, 255 (02) : 269 - 275
  • [6] THE INSTABILITY OF RADIATION-DRIVEN STELLAR WINDS
    CARLBERG, RG
    [J]. ASTROPHYSICAL JOURNAL, 1980, 241 (03) : 1131 - 1140
  • [7] COHEN NL, 1979, ASTROPHYS LETT COMM, V20, P81
  • [8] Fiebig D, 1996, ASTRON ASTROPHYS, V310, P199
  • [9] FIEBIG D, 1989, ASTRON ASTROPHYS, V214, P333
  • [10] Ginzburg V. L., 1975, THEORETICAL PHYS AST
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