Abstract
A complete sample of core-dominated radio sources has been studied using the interplanetary-scintillation method. In total, 72 sources were observed, with scintillations detected in 28 of them. The remaining sources have upper limits on their flux densities. Integrated flux densities are estimated for 24 sources. Cut-offs have been observed in the spectra of many sources. The thermal-electron densities have been estimated, assuming that these cut-offs are due to free-free absorption of the synchrotron radio emission.
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K. I. Kellermann and I. I. K. Pauliny-Toth, Ann. Rev. Astron. Astrophys. 19, 373 (1981).
R. Antonucci, Ann. Rev. Astron. Astrophys. 31, 473 (1993).
C.M. Urry and P. Padovani, Publ. Astron. Soc. Pacif. 107, 803 (1995).
N. I. Shakura and R. A. Sunyaev, Astron. Astrophys. 24, 337 (1973).
R. D. Blandford and R. L. Znajek, Mon. Not. R. Astron. Soc. 179, 433 (1977).
I. F. Mirabel and L. F. Rodriguez, Ann. Rev. Astron. Astrophys. 37, 409 (1999).
V. I. Pariev, B. C. Bromley, and W. A. Miller, Astrophys. J. 547, 649 (2001).
V. S. Artyukh and M. A. Ogannisyan, Astrofizika 19, 655 (1983).
V. S. Artyukh and M. A. Ogannisyan, Astrofizika 22, 211 (1985).
V. S. Artyukh, R. A. Kandalyan, M. A. Ogannisyan, and V. A. Sanamyan, Astrofizika 18, 215 (1982).
V. S. Artyukh, R. A. Kandalyan, M. A. Ogannisyan, and V. A. Sanamyan, Astrofizika 23, 27 (1985).
V. S. Artyukh, V. G. Malumyan, and M. A. Ogannisyan, Astron. Zh. 59, 1075 (1982) [Sov. Astron. 26, 650 (1982)].
V. S. Artyukh and Yu. N. Vetukhnovskaya, Pis’ma Astron. Zh. 9, 86 (1983) [Sov. Astron. Lett. 9, 47 (1983)].
V. S. Artyukh, Astron. Zh. 61, 240 (1984) [Sov. Astron. 28, 140 (1984)].
V. S. Artyukh and Yu. N. Vetukhnovskaya, Astron. Zh. 58, 689 (1981) [Sov. Astron. 25, 397 (1981)].
V. S. Artyukh and M. A. Ogannisyan, Pis’ma Astron. Zh. 14, 706 (1988) [Sov. Astron. Lett. 14, 301 (1988)].
V. S. Artyukh, M. A. Ogannisyan, and S. A. Tyul’bashev, Pis’ma Astron. Zh. 20, 258 (1994) [Astron. Lett. 20, 211 (1994)].
V. S. Artyukh, S. A. Tyul’bashev, and M. A. Ogannisyan, Pis’ma Astron. Zh. 20, 178 (1994) [Astron. Lett. 20, 146 (1994)].
P. A. Chernikov, V. S. Artyukh, S. A. Tyul’bashev, and K. A. Lapaev, Astron. Rep. 50, 223 (2006).
V. S. Artyukh, A. V. Zasov, and S. A. Tyul’bashev, Pis’ma Astron. Zh. 21, 723 (1995) [Astron. Lett. 21, 645 (1995)].
V. S. Artyukh, S. A. Tyul’bashev, and P. A. Chernikov, Astron. Zh. 76, 3 (1999) [Astron. Rep. 43, 1 (1999)].
S. A. Tyul’bashev and P. A. Chernikov, Astron. Zh. 77, 331 (2000) [Astron. Rep. 44, 286 (2000)].
S. A. Tyul’bashev and P. A. Chernikov, Astron. Astrophys. 373, 381 (2001).
Yu. N. Vetukhnovskaya, Pis’ma Astron. Zh. 13, 376 (1987) [Sov. Astron. Lett. 13, 154 (1987)].
S. A. Tyul’bashev and P. Augusto, Astron. Astrophys. 439, 963 (2005).
V. S. Artyukh and B. Speed, Astrophys. Space Sci. 61, 229 (1979).
V. S. Artyukh and S. A. Tyul’bashev, Astron. Zh. 73, 661 (1996) [Astron. Rep. 40, 601 (1996)].
V. S. Artyukh, S. A. Tyul’bashev, and E. A. Isaev, Astron. Zh. 75, 323 (1998) [Astron. Rep. 42, 283 (1998)].
D. W. Murphy, I. W. A. Browne, and R. A. Perley, Mon. Not. R. Astron. Soc. 264, 298 (1993).
T. J. Pearson and A. C. S. Readhead, Astrophys. J. 248, 61 (1981).
W. H. de Vries, P. D. Barthel, and C. P. O’Dea, Astron. Astrophys. 321, 105 (1997).
A. B. Peck and G. B. Taylor, Astrophys. J. 534, 90 (2000).
S. A. Tyul’bashev, Astron. Zh. 78, 498 (2001) [Astron. Rep. 45, 428 (2001)].
V. S. Artyukh and V. I. Shishov, Astron. Zh. 59, 896 (1982) [Sov. Astron. 26, 542 (1982)].
K. J. Kellermann, Astrophys. J. 140, 969 (1964).
V. S. Artyukh, Astron. Zh. 58, 208 (1981) [Sov. Astron. 25, 116 (1981)].
V. S. Artyukh and S. A. Tyul’bashev, Astron. Zh. 73, 669 (1996) [Astron. Rep. 40, 608 (1996)].
M. Marians, Radio Sci. 10, 115 (1975).
V. S. Artyukh and T. V. Smirnova, Pis’ma Astron. Zh. 15, 797 (1989) [Sov. Astron. Lett. 15, 344 (1989)].
V. I. Shishov and T. D. Shishova, Astron. Zh. 55, 411 (1978) [Sov. Astron. 22, 235 (1978)].
V. I. Shishov and T. D. Shishova, Astron. Zh. 56, 613 (1979) [Sov. Astron. 23, 345 (1979)].
A. V. Pynzar’ and V. I. Shishov, Radiofizika 18, 506 (1975).
V. I. Shishov, T. V. Smirnova, and S. A. Tyul’bashev, Astron. Zh. 82, 281 (2005) [Astron. Rep. 49, 250 (2005)].
V. I. Shishov, S. A. Tyul’bashev, V. S. Artyukh, et al., Solar Syst. Res. 39, 375 (2005).
Yu. N. Vetukhnovskaya, Astron. Zh. 66, 480 (1988) [Sov. Astron. 32, 249 (1988)].
K. Lang, Astrophysical Formulas (Springer, New York, 1980; Mir,Moscow, 1978).
Y. Y. Kovalev, K. I. Kellermann, M. L. Lister, et al., Astron. J. 130, 2473 (2005).
M. P. Veron-Cetty and P. Veron, Astron. Astrophys. 412, 399 (2003).
B. G. Piner and K. A. Kingham, Astrophys. J. 507, 706 (1998).
S. Frey, L. I. Gurvits, H. D. Aller, et al., Publ. Astron. Soc. Japan. 52, 975 (2000).
A. L. Fey and P. Charlot, Astrophys. J., Suppl. Ser. 128, 17 (2000).
T. A. Small, W. L. Sargent, and C. C. Steidel, Astron. J. 114, 2254 (1997).
A. P. Marscher and J. J. Broderick, Astrophys. J. 290, 735 (1985).
E. B. Fomalont, S. Frey, Z. Paragi, et al., Astrophys. J. 131, 95 (2000).
NASA/IPAC Extragalactic Database (NED), http://ned.ipac.caltech.edu.
A. L. Fey and P. Charlot, Astrophys. J. 111, 95 (1997).
I. Agudo, L. J. Gomez, D. C. Gabuzda, et al., Astron. Astrophys. 453, 477 (2006).
J. L. Gomez, J. C. Guirado, I. Agudo, et al., Mon. Not. R. Astron. Soc. 328, 873 (2001).
S. G. Jorstadt, A. P. Marscher, J. R. Mattox, et al., Astrophys. J., Suppl. Ser. 134, 181 (2001).
M. L. Lister, Astrophys. J. 562, 208 (2001).
K. Otterbein, T. P. Krichbaum, A. Kraus, et al., Astron. Astrophys. 334, 489 (1998).
T. P. Krichbaum, C. A. Hummel, A. Quirrenbach, et al., Astron. Astrophys. 230, 271 (1990).
A. P. Lobanov, T. P. Krichbaum, D. A. Graham, et al., Astron. Astrophys. 364, 391 (2000).
A. Alberdi, T. P. Krichbaum, J. M. Marcaide, et al., Astron. Astrophys. 271, 93 (1993).
A. L. Fey, A. W. Clegg, and E. B. Fomalont, Astrophys. J. Suppl. Ser. 105, 299 (1996).
T. An, X. Y. Hong, W.H. Wang, et al., Chinese J.Astrophys. 1, 305 (2001).
D. R. Jiang, J. F. Zhou, X. Y. Hong, et al., Astrophys. J. 577, 69 (2002).
S. Iguchi, K. Fujisawa, S. Kameno, et al., Publ. Astron. Soc. Japan. 52, 1037 (2000).
D. C. Gabuzda and V. A. Chernetskii, Mon. Not. R. Astron. Soc. 339, 669 (2003).
D. C. Gabuzda and T. V. Cawthorne, Mon. Not. R. Astron. Soc. 319, 1056 (2000).
R. Ojha, D. C. Homan, D. H. Roberts, et al., Astrophys. J. Suppl. Ser. 150, 187 (2004).
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Original Russian Text © S.A. Tyul’bashev, 2009, published in Astronomicheskiĭ Zhurnal, 2009, Vol. 86, No. 1, pp. 23–34.
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Tyul’bashev, S.A. A study of radio sources using interplanetary scintillations at 111 MHz. Core-dominated sources. Astron. Rep. 53, 19–29 (2009). https://doi.org/10.1134/S106377290901003X
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DOI: https://doi.org/10.1134/S106377290901003X