Новая сверхсветовая компонента в источнике 1308+326
Transactions of IAA RAS, issue 4, 135–149 (1999)
Keywords: радиоинтерферометрия со сверхдлинными базами (РСДБ), астрометрия, геодинамика, небесная механика, мониторинг структуры радиоисточника, геодезические РСДБ-данные, сверхсветовая компонента в радиоисточнике, радиальная скорость, радиальное перемещение, позиционный угол, спектральные характеристики полного потока источника, поляризационные характеристики потока источника
Abstract
Three-year, from 1994.0 to 1996.69, monitoring of structure variability of the radio sources 1308+326 was performed using 8 GHz geodetic VLBI-data. As a result it was found that between epochs 1995.66 and 1996.56 a new bright superluminal component with apparent radial velocity equal to $\beta_app=13.8h^-1c$ appears in the source. The brightest central component of the source show during all period of the monitoring only mildly superluminal movement with $\beta_app=1.9h^-1c$, which accompanied by change of positional angle, $dPA/dt= -15\pm8$ deg/year. Origin of the new superluminal component is discussed in connection with variation of spectral characteristics of total flux of the source from 37 to 4.8 GHz and its polarization at 8 GHz.
Citation
Пятунина Т. Б., Аллер X. Д., Аллер М. Ф., Тересранта X., Валтойя Е. Новая сверхсветовая компонента в источнике 1308+326 // Transactions of IAA RAS. — 1999. — Issue 4. — P. 135–149.
TY - JOUR
TI - Новая сверхсветовая компонента в источнике 1308+326
AU - Б., Пятунина Т.
AU - Д., Аллер X.
AU - Ф., Аллер М.
AU - X., Тересранта
AU - Е, Валтойя
PY - 1999
T2 - Transactions of IAA RAS
IS - 4
SP - 135
AB - Three-year, from 1994.0 to 1996.69, monitoring of structure
variability of the radio sources 1308+326 was performed using 8 GHz
geodetic VLBI-data. As a result it was found that between epochs
1995.66 and 1996.56 a new bright superluminal component with apparent
radial velocity equal to $\beta_app=13.8h^-1c$ appears in the source.
The brightest central component of the source show during all period
of the monitoring only mildly superluminal movement with
$\beta_app=1.9h^-1c$, which accompanied by change of positional
angle, $dPA/dt= -15\pm8$ deg/year. Origin of the new superluminal
component is discussed in connection with variation of spectral
characteristics of total flux of the source from 37 to 4.8 GHz and
its polarization at 8 GHz.
UR - http://iaaras.ru/en/library/paper/237/
ER -