MULTI-EPOCH MULTI-FREQUENCY VLBI STUDY OF THE PARSEC-SCALE JET IN THE BLAZAR 3C 66A

被引：3

作者：

Zhao, Guang-Yao ^{[1
,2
]}

Chen, Yong-Jun ^{[1
,3
]}

Shen, Zhi-Qiang ^{[1
,3
]}

Sudou, Hiroshi ^{[4
]}

Iguchi, Satoru ^{[5
]}

机构：

[1] Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China

[2] Korea Astron & Space Sci Inst, Taejon 305348, South Korea

[3] Chinese Acad Sci, Key Lab Radio Astron, Beijing 100864, Peoples R China

[4] Gifu Univ, Fac Engn, Gifu 5011193, Japan

[5] Natl Astron Observ Japan, Tokyo 1818588, Japan

来源：

ASTRONOMICAL JOURNAL | 2015年 / 149卷 / 02期

基金：

中国国家自然科学基金;

关键词：

galaxies: individual (3C 66A); galaxies: jets; radio continuum: galaxies; ACTIVE GALACTIC NUCLEI; COMPACT RADIO-SOURCES; BL LACERTAE OBJECTS; RAY BRIGHT BLAZARS; BASE-LINE ARRAY; SUPERLUMINAL MOTION; HIGH-FREQUENCY; KINEMATICS; FERMI; QUASARS;

D O I：

10.1088/0004-6256/149/2/46

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present observational results of the gamma-ray blazar 3C 66A at 2.3, 8.4, and 22 GHz at four epochs during 2004-2005 with the VLBA. The resulting images show an overall core-jet structure extending roughly to the south, with two intermediate breaks occurring in the region near the core. By model-fitting to the visibility data, the northmost component, which is also the brightest, is identified as the core according to its relatively flat spectrum and its compactness. Combining our results with previous results to investigate the proper motions of the jet components, we found the kinematics of 3C 66A to be quite complicated, with components of inward and outward, subluminal and superluminal motions all detected in the radio structure. The superluminal motions indicate strong Doppler boosting exists in the jet. The apparent inward motions of the innermost components last for at least 10 years and could not be caused by newborn components. A possible reason could be non-stationarity of the core due to opacity change.

引用

页数：7

共 37 条

[1] MULTI-WAVELENGTH OBSERVATIONS OF THE FLARING GAMMA-RAY BLAZAR 3C 66A IN 2008 OCTOBER [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Blandford, R. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bouvier, A. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Buehler, R. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Carrigan, S. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Celik, Oe. ;

Charles, E. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Conrad, J. ;

Costamante, L. ;

Cutini, S. ;

Davis, D. S. ;

Dermer, C. D. ;

de Palma, F. ;

Digel, S. W. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Dubois, R. ;

Dumora, D. ;

Favuzzi, C. ;

Fegan, S. J. ;

Fortin, P. ;

Frailis, M. .

ASTROPHYSICAL JOURNAL, 2011, 726 (01)

[2] THE SPECTRAL ENERGY DISTRIBUTION OF FERMI BRIGHT BLAZARS [J].

Abdo, A. A. ;

Ackermann, M. ;

Agudo, I. ;

Ajello, M. ;

Aller, H. D. ;

Aller, M. F. ;

Angelakis, E. ;

Arkharov, A. A. ;

Axelsson, M. ;

Bach, U. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Baughman, B. M. ;

Bechtol, K. ;

Bellazzini, R. ;

Benitez, E. ;

Berdyugin, A. ;

Berenji, B. ;

Blandford, R. D. ;

Bloom, E. D. ;

Boettcher, M. ;

Bonamente, E. ;

Borgland, A. W. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Burnett, T. H. ;

Burrows, D. ;

Buson, S. ;

Caliandro, G. A. ;

Calzoletti, L. ;

Cameron, R. A. ;

Capalbi, M. ;

Caraveo, P. A. ;

Carosati, D. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Celik, Oe. ;

Charles, E. ;

Chaty, S. ;

Chekhtman, A. ;

Chen, W. P. ;

Chiang, J. ;

Chincarini, G. ;

Ciprini, S. ;

Claus, R. .

ASTROPHYSICAL JOURNAL, 2010, 716 (01) :30-70

[3] VERITAS OBSERVATIONS OF A VERY HIGH ENERGY γ-RAY FLARE FROM THE BLAZAR 3C 66A [J].

Acciari, V. A. ;

Aliu, E. ;

Arlen, T. ;

Beilicke, M. ;

Benbow, W. ;

Boettcher, M. ;

Bradbury, S. M. ;

Buckley, J. H. ;

Bugaev, V. ;

Butt, Y. ;

Byrum, K. ;

Cannon, A. ;

Celik, O. ;

Cesarini, A. ;

Chow, Y. C. ;

Ciupik, L. ;

Cogan, P. ;

Cui, W. ;

Daniel, M. K. ;

Dickherber, R. ;

Ergin, T. ;

Falcone, A. ;

Fegan, S. J. ;

Finley, J. P. ;

Fortin, P. ;

Fortson, L. ;

Furniss, A. ;

Gall, D. ;

Gibbs, K. ;

Gillanders, G. H. ;

Godambe, S. ;

Grube, J. ;

Guenette, R. ;

Gyuk, G. ;

Hanna, D. ;

Hays, E. ;

Holder, J. ;

Horan, D. ;

Hui, C. M. ;

Humensky, T. B. ;

Imran, A. ;

Kaaret, P. ;

Karlsson, N. ;

Kertzman, M. ;

Kieda, D. ;

Kildea, J. ;

Konopelko, A. ;

Krawczynski, H. ;

Krennrich, F. ;

Lang, M. J. .

ASTROPHYSICAL JOURNAL LETTERS, 2009, 693 (02) :L104-L108

[4]

Alberdi A, 2000, ASTRON ASTROPHYS, V361, P529

[5] DISCOVERY OF A VERY HIGH ENERGY GAMMA-RAY SIGNAL FROM THE 3C 66A/B REGION [J].

Aliu, E. ;

Anderhub, H. ;

Antonelli, L. A. ;

Antoranz, P. ;

Backes, M. ;

Baixeras, C. ;

Balestra, S. ;

Barrio, J. A. ;

Bartko, H. ;

Bastieri, D. ;

Becerra Gonzalez, J. ;

Becker, J. K. ;

Bednarek, W. ;

Berger, K. ;

Bernardini, E. ;

Biland, A. ;

Bock, R. K. ;

Bonnoli, G. ;

Bordas, P. ;

Borla Tridon, D. ;

Bosch-Ramon, V. ;

Bretz, T. ;

Britvitch, I. ;

Camara, M. ;

Carmona, E. ;

Chilingarian, A. ;

Commichau, S. ;

Contreras, J. L. ;

Cortina, J. ;

Costado, M. T. ;

Covino, S. ;

Curtef, V. ;

Dazzi, F. ;

De Angelis, A. ;

De Cea del Pozo, E. ;

de los Reyes, R. ;

De Lotto, B. ;

De Maria, M. ;

De Sabata, F. ;

Delgado Mendez, C. ;

Dominguez, A. ;

Dorner, D. ;

Doro, M. ;

Elsaesser, D. ;

Errando, M. ;

Ferenc, D. ;

Fernandez, E. ;

Firpo, R. ;

Fonseca, M. V. ;

Font, L. .

ASTROPHYSICAL JOURNAL LETTERS, 2009, 692 (01) :L29-L33

[6] VLBI FOR GRAVITY PROBE B. III. A LIMIT ON THE PROPER MOTION OF THE "CORE" OF THE QUASAR 3C 454.3 [J].

Bartel, N. ;

Bietenholz, M. F. ;

Lebach, D. E. ;

Lederman, J. I. ;

Petrov, L. ;

Ransom, R. R. ;

Ratner, M. I. ;

Shapiro, I. I. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2012, 201 (01)

[7] Coordinated multiwavelength observation of 3C 66A during the WEBT campaign of 2003-2004 [J].

Böttcher, M ;

Harvey, J ;

Joshi, M ;

Villata, M ;

Raiteri, CM ;

Bramel, D ;

Mukherjee, R ;

Savolainen, T ;

Cui, W ;

Fossati, G ;

Smith, IA ;

Able, D ;

Aller, HD ;

Aller, MF ;

Arkharov, AA ;

Augusteijn, T ;

Baliyan, K ;

Barnaby, D ;

Berdyugin, A ;

Benítez, E ;

Boltwood, P ;

Carini, M ;

Carosati, D ;

Ciprini, S ;

Coloma, JM ;

Crapanzano, S ;

de Diego, JA ;

Di Paola, A ;

Dolci, M ;

Fan, J ;

Frasca, A ;

Hagen-Thorn, V ;

Horan, D ;

Ibrahimov, M ;

Kimeridze, GN ;

Kovalev, YA ;

Kovalev, YY ;

Kurtanidze, O ;

Lähteenmäki, A ;

Lanteri, L ;

Larionov, VM ;

Larionova, EG ;

Lindfors, E ;

Marilli, E ;

Mirabal, N ;

Nikolashvili, M ;

Nilsson, K ;

Ohlert, JM ;

Ohnishi, T ;

Oksanen, A .

ASTROPHYSICAL JOURNAL, 2005, 631 (01) :169-186

[8] Observations of the BL Lacertae object 3C 66A with STACEE [J].

Bramel, DA ;

Carson, J ;

Covault, CE ;

Fortin, P ;

Gingrich, DM ;

Hanna, DS ;

Jarvis, A ;

Kildea, J ;

Lindner, T ;

Mukherjee, R ;

Mueller, C ;

Ong, RA ;

Ragan, K ;

Scalzo, RA ;

Williams, DA ;

Zweerink, J .

ASTROPHYSICAL JOURNAL, 2005, 629 (01) :108-114

[9] A multi-epoch VLBI survey of the kinematics of CFJ sources - II. Analysis of the kinematics [J].

Britzen, S. ;

Vermeulen, R. C. ;

Campbell, R. M. ;

Taylor, G. B. ;

Pearson, T. J. ;

Readhead, A. C. S. ;

Xu, W. ;

Browne, I. W. ;

Henstock, D. R. ;

Wilkinson, P. .

ASTRONOMY & ASTROPHYSICS, 2008, 484 (01) :119-142

[10] Multi-epoch VLBA observations of 3C 66A [J].

Cai, H.-B. ;

Shen, Z.-Q. ;

Sudou, H. ;

Shang, L.-L. ;

Iguchi, S. ;

Murata, Y. ;

Taniguchi, Y. ;

Wakamatsu, K. ;

Takaba, H. .

ASTRONOMY & ASTROPHYSICS, 2007, 468 (03) :963-971

← 1 2 3 4 →