2011A&A...530A.129M


Query : 2011A&A...530A.129M

2011A&A...530A.129M - Astronomy and Astrophysics, volume 530A, 129-129 (2011/6-1)

On the influence of the Sun on the rapid variability of compact extragalactic sources.

MARCHILI N., KRICHBAUM T.P., LIU X., SONG H.-G., ANDERSON J.M., WITZEL A. and ZENSUS J.A.

Abstract (from CDS):

Since December 2004, we have performed a program to monitor intraday variable sources at a frequency of 5 GHz at the Urumqi Observatory. We present our analysis of the variability characteristics of the flat-spectrum radio source AO 0235+164, which detects an annual cycle in the variability amplitude. This appears to correlate with the solar elongation of the source. A thorough analysis of the results of the MASIV IDV survey - which provides the variability characteristics of a large sample of compact radio sources - confirms that there is a small but detectable component of the observed fractional modulation that increases with decreasing solar elongation. We discuss the hypothesis that the phenomenon is related to interplanetary scintillation.

Abstract Copyright:

Journal keyword(s): scattering - quasars: individual: AO 0235+164 - radio continuum: general - solar wind - surveys

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 QSO B0235+1624 BLL 02 38 38.93010 +16 36 59.2746   16.46 15.50 15.92   ~ 1433 2
2 ICRF J031857.8+162832 AGN 03 18 57.8028254 +16 28 32.689683     22.0     ~ 192 1
3 8C 0716+714 BLL 07 21 53.4484901266 +71 20 36.362058601   15.5 14.17 14.27   ~ 1174 1
4 4C 71.07 QSO 08 41 24.36526906 +70 53 42.1730054     16.5 16.8   ~ 718 1
5 6C 091739+622838 QSO 09 21 36.23106854 +62 15 52.1803472   19.76 19.26 18.96   ~ 326 1
6 QSO B0952+179 QSO 09 54 56.82361250 +17 43 31.2222114   17.31 17.23     ~ 202 1
7 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5481 6
8 6C 095456+654857 BLL 09 58 47.2452838930 +65 33 54.821524491     17.0 15.75   ~ 639 1
9 6C 112519+594222 QSO 11 28 13.34067 +59 25 14.7986   19.78 19.56 19.33   ~ 70 1
10 Ton 599 QSO 11 59 31.83390975 +29 14 43.8268741   14.80 14.41 17.652 13.39 ~ 826 1

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2021.09.21-01:44:15

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