Optical and IR monitoring of the BL Lac object S5 0716+714 from 2001-2004

被引：20

作者：

Hagen-Thorn, VA

Larionov, VM

Efimova, NV

Hagen-Thorn, EI

Arkharov, AA

Di Paola, A

Dolci, M

Takalo, LO

Sillanpää, A

Ostorero, L

机构：

[1] St Petersburg State Univ, Sobolev Astron Inst, St Petersburg 198904, Russia

[2] Russian Acad Sci, Pulkovo Observ, St Petersburg 196140, Russia

[3] Osserv Astron Roma, Ist Nazl Astrofis INAF, I-00040 Monte Porzio Catone, Italy

[4] Osservatorio Astron Collurania Teramo, I-64100 Teramo, Italy

[5] Univ Turku, Tuorla Observ, FI-21500 Piikkio, Finland

[6] Landessternwarte Heidelberg Konigstuhl, ZAH, D-69117 Heidelberg, Germany

来源：

ASTRONOMY REPORTS | 2006年 / 50卷 / 06期

基金：

俄罗斯基础研究基金会; 芬兰科学院;

关键词：

D O I：

10.1134/S1063772906060059

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Multicolor (BVRIJHK) observations of the BL Lac object S5 0716+714 carried Out from 2001-2004 indicate that the spectral energy distribution of the slowly varying component remained constant over the entire wavelength interval and over the three-year observation period. The distribution Call be represented by the power law F-nu similar to nu(-1.12) providing evidence that this component has a synchrotron nature. The color characteristics of very rapid variability detected on several nights are the same as those for the slowly varying component. An analysis of published data on the color variability of the object for previous years indicates that the color characteristics of the slowly varying component are stable, independent of the time intervals considered and the characteristic variability time scales.

引用

页码：458 / 467

页数：10

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