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Radio variability of blazars

Published online by Cambridge University Press:  24 February 2011

J. H. Fan ,
W. Xu ,
J. Pan  and
Y. H. Yuan
J. H. Fan
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China email: jhfan_cn@yahoo.com.cn Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province, Guangzhou 510006, China
W. Xu
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China email: jhfan_cn@yahoo.com.cn Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province, Guangzhou 510006, China
J. Pan
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China email: jhfan_cn@yahoo.com.cn Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province, Guangzhou 510006, China
Y. H. Yuan
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China email: jhfan_cn@yahoo.com.cn Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province, Guangzhou 510006, China
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Abstract

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In this work, we present the analysis results using UMRAO preliminary data base. We used the light curves 1) to get the shortest timescales and then to get the brightness temperature so that we can estimate the Doppler factors; 2) to investigate the periodicity and discuss the variability index. We also used the data base to discuss the polarization properties of blazars. We found that the periodicity distribution in BL Lacs and that in the flat spectrum radio quasars should be from the same distribution. The Doppler factor in FSRQs is higher than that in BL. The polarization in BLs are higher than that in the flat spectrum radio quasars

Keywords

galaxies: nuclei-galaxies: jets-radio continuum: galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 164 - 167
Copyright
Copyright © International Astronomical Union 2011

References

Aller, M. F., Aller, H. D., & Hughes, P. A., 1992, ApJ, 399, 16CrossRefGoogle Scholar
Aller, M. F., Aller, H. D., & Hughes, P. A., 2003, ApJ, 586, 33CrossRefGoogle Scholar
Bai, J. M., et al. , 1998, ApJSS, 132, 83.Google Scholar
Boettcher, M., Fultz, K., Aller, H. D., et al. , 2009, ApJ, 694, 174.CrossRefGoogle Scholar
Cellone, S. A., et al. , 2007, MNRAS, 381, 60CrossRefGoogle Scholar
Dai, B., 2010 Multiwavelength Variability of Blazars, Sept. 22-24, 2010, Guangzhou, ChinaGoogle Scholar
de Vries, W. H., Becker, R. H., & White, R. L., 2006, ASPC, 360, 29.Google Scholar
Edelson, R. A., Alexander, T., Crenshaw, D. M., et al. , 1996, ApJ, 470, 364CrossRefGoogle Scholar
Efimov, Yu., 2010 Multiwavelength Variability of Blazars, Sept. 22-24, 2010, Guangzhou, ChinaGoogle Scholar
Fan, J. H., et al. , 1997, A&A, 125, 525.Google Scholar
Fan, J. H., Xie, G. Z., Pecontal, E. et al. , 1998, ApJ, 507, 173CrossRefGoogle Scholar
Fan, J. H., Yuan, Yu-Hai, Liu, Yi, et al. , 2002, PASJ, 60, 1217CrossRefGoogle Scholar
Fan, J. H., 2002, PASJ, 54, 55CrossRefGoogle Scholar
Fan, J. H., et al. , 2002, A&A, 381, 1Google Scholar
Fan, J. H., Romero, Gustavo E., Wang, Yong-Xiang, et al. 2005, ChJAA, 5, 457Google Scholar
Fan, Jun-Hui, 2005, ChJAS, 5, 213Google Scholar
Fan, J. H., Liu, Y., Yuan, Y. H.. et al. , 2007, A&A, 462, 547Google Scholar
Fan, J. H., Peng, Q. S., Tao, J., Qian, B. C., & Shen, Z. Q., 2009a, AJ, 138, 1428.CrossRefGoogle Scholar
Fan, J. H., Zhang, Y. W., Qian, B. C., et al. , 2009b, ApJSS, 181, 466.CrossRefGoogle Scholar
Fan, J. H., Huang, Y., He, T. M., et al. , 2009c, PASJ, 61, 639.CrossRefGoogle Scholar
Fan, J. H., Lu, Y., Qian, B. C., et al. , 2010, RAA, 10, 1100.Google Scholar
Fidelis, V. V., Yakubovskyi, D. A. & Voytkova, Yu. V., 2009, Astron. Let., 35, 579.CrossRefGoogle Scholar
Gupta, A. C., Deng, W. G., Joshi, U. C., et al. , 2008a, New Astron., 13, 3759.CrossRefGoogle Scholar
Gupta, A. C., Cha, S.-M., Lee, S., et al. , 2008b, AJ, 136, 2359.CrossRefGoogle Scholar
Gupta, A. C., Acharya, B. S., Bose, D. et al. , 2008c, CJA&A, 8, 395.Google Scholar
Kembhavi, A. K. & Narlika, J. V., 1999, Quasars and Active Galactic Nuclei, Cambridge Uni. PressCrossRefGoogle Scholar
Liu, X., 2010, Multiwavelength Variability of Blazars, Sept. 22-24, 2010, Guangzhou, ChinaGoogle Scholar
Poon, H., Fan, J. H., & Fu, J. N., 2009, ApJSS, 185, 511.CrossRefGoogle Scholar
Pyatunina, T. B., Rakhimov, I. A., & Zborovskii, A. A., 2004, Astron. Rep., 48, 439.CrossRefGoogle Scholar
Qian, B. C. & Tao, J., 2003, PASP, 115, 490CrossRefGoogle Scholar
Qian, B. C. & Tao, J., 2004, PASP, 116, 161CrossRefGoogle Scholar
Raiteri, C. M., Villata, M., Tosti, G., et al. , 2003, A&A, 402, 151Google Scholar
Romero, G. E., et al. , 1999, A&AS, 135, 477Google Scholar
Romero, G. E., Cellone, S. A., & Combi, J. A., 2000, AJ, 120, 1192CrossRefGoogle Scholar
Romero, G. E., Cellone, S. A., Combi, J. A., et al. , 2002, A&A, 390, 431Google Scholar
Sillanpaa, A., Haarala, S., Valtonen, M. J., et al. , 1988, ApJ, 325, 628.CrossRefGoogle Scholar
Sillanpaa, A., Takalo, L. O., Pursimo, T. et al. , 1996, A&A, 305, L17Google Scholar
Takalo, L. O., et al. , 2010, A&A, 517, 63.Google Scholar
Villata, M., Raiteri, C. M., Kurtanidze, O. M., et al. , 2004, A&A, 421, 103Google Scholar
Wanger, S. J. & Witzel, A., 1995, ARA&A, 33, 163Google Scholar
Webb, J. R., et al. , 1998, AJ, 115, 2244CrossRefGoogle Scholar
Wills, Beverley J., Wills, D., Breger, Michel, Antonucci, R. R. J., et al. , 1992, ApJ, 398, 454CrossRefGoogle Scholar
Wu, J. H., 2010, Multiwavelength Variability of Blazars, Sept. 22-24, 2010, Guangzhou, ChinaGoogle Scholar
Xie, G. Z., et al. , 1999, ApJ, 522, 846CrossRefGoogle Scholar
Xie, G. Z., et al. , 2004, MNRAS, 348, 831CrossRefGoogle Scholar
Zhang, Haojing, Zhao, Gang, Zhang, Xiong & Bai, Jinming, 2010, Sc. Ch. G, 53, 252CrossRefGoogle Scholar