The bulk kinetic power of the jets of GRS 1915+105

被引：22

作者：

Gliozzi, M

Bodo, G

Ghisellini, G

机构：

[1] Dipartimento Fis Gen Torino, I-10125 Turin, Italy

[2] Osservatorio Astron Torino, I-10025 Pino Torinese, Italy

[3] Osservatorio Astron Brera, I-23807 Merate, Italy

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1999年 / 303卷 / 03期

关键词：

radiative mechanisms; non-thermal; stars : individual : GRS 1915+105;

D O I：

10.1046/j.1365-8711.1999.02436.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the minimum value of the power in kinetic bulk motion of the galactic superluminal source: GRS 1915+105. This value far exceeds the Eddington luminosity for accretion on to a black hole of mass 10 M.. This large value severely limits the possible carriers of the kinetic luminosity at the base of the jet, and favours a jet production and acceleration controlled by a magnetic field, the value of which, at the base of the jet, exceeds 10(8) G. The Blandford & Znajek process can be responsible for the extraction of the rotational energy of a Kerr black hole, if it lasts long enough to provide the required kinetic energy. The time required, of the order of a day, implies that the process must operate in a stationary, not impulsive, mode.

引用

页码：L37 / L40

页数：4

共 25 条

[11]

GHISELLINI G, 1999, UNPUB MNRAS

[12] Rossi x-ray timing explorer observations of GRS 1915+105 [J].