Abstract
Observations of the RRAT pulsars J0627+16, J0628+09, J1819−1458, J1826−1419, J1839−01, J1840−1419, J1846−0257, J1848−12, J1850+15, J1854+0306, J1919+06, J1913+1330, J1919+17, J1946+24, and J2033+00 observed earlier on the 64-m Parkes telescope (Australia) and the 300-m Arecibo radio telescope (Puerto Rico) at 1400 MHz were conducted at 111 MHz on the LSA radio telescope of the Pushchino Radio Astronomy observatory in 2010–2012. A characteristic feature of these pulsars is their sporadic radio emission during rare active epochs and the absence of radio emission during long time intervals. No appreciable flare activity of these pulsars was detected in the Pushchino observations. However, processing the observations using the Fast Folding Algorithm taking into account known information about the pulsar dispersion measures and periods shows that, even during quiescent intervals, the majority of the studied pulsars generate weak radio pulses with a period corresponding to that of the radio emission of the sporadic pulses observed at active epochs. The flux of this radio emission does not exceed 100 mJy at the pulse peak, even at the low frequency of 111 MHz. This considerably hinders detection of the radio emission of RRAT pulsars at high frequencies, since the radio fluxes of RRAT pulsars decreases with increasing frequency.
Similar content being viewed by others
References
Ya. N. Istomin and D. N. Sob’yanin, Astron. Rep. 54, 338 (2010).
M. Cramer, A. G. Lyne, J. T. O’Brien, C. A. Jordan, and D. R. Lorimer, Science 312, 549 (2006).
R. T. Ritching, Mon. Not. R. Astron. Soc. 176, 249 (1976).
N. Wang, R. N. Manchester, and S. Jonston, Mon. Not. R. Astron. Soc. 377, 1383 (2007).
S. A. Suleimanova, S. V. Logvinenko, and T. V. Smirnova, Astron. Rep. 56, 207 (2012).
M. A. McLaughlin, A. G. Lyne, D. R. Lorimer, M. Kramer, A. J. Faulkner, R. N. Manchester, J. M. Cordes, F. Camilo, A. Possenti, I. H. Stairs, G. Hobbs, N. D’Amico, M. Burgay, and J. T. O’Brien, Nature 439, 817 (2006).
E. F. Keane, M. Kramer, A. G. Lyne, B. W. Stappers, and M. A. McLaughlin, Mon. Not. R. Astron. Soc. 415, 3065 (2011).
B. Cui, J. Boyles, M. McLaughlin, and N. Palliyaguru, in Neutron Stars and Pulsars: Challenges and Opportunities after 80 Years, Ed. by J. van Leeuwen, Proc. IAU Symp. 291, 366 (2012); arXiv:1210. 6992v2 [astro-ph. SR] (2012).
D. R. Lorimer, AIP Conf. Proc. 1357, 11 (2011).
I. F. Malov, Radiopulsars (Nauka, Moscow, 2004) [in Russian].
E. F. Keane, in Proceedings of High Time Resolution Astrophysics-The Era of Extremely Large Telescopes (HTRA-IV), May 5–7, 2010, Agios Nikolaos, Crete, Greece, ID 015. http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=108.
M. A. McLaughlin, A. G. Lyne, E. F. Keane, M. Kramer, J. J. Miller, D. R. Lorimer, R. N. Manchester, F. Camilo, and I. H. Stairs, Mon. Not. R. Astron. Soc. 400, 1431 (2009).
S. Burke-Spolaor and M. Bailes, Mon. Not. R. Astron. Soc. 402, 855 (2010).
N. T. Palliyaguru, M. A. McLaughlin, E. F. Keane, M. Kramer, A. G. Lyne, D. R. Lorimer, R. N. Manchester, F. Camilo, and I. H. Stairs, Mon. Not. R. Astron. Soc. 417, 1871 (2011).
Yu. P. Shitov, A. D. Kuz’min, D. V. Dumskii, and B. Ya. Losovskii, Astron. Rep. 53, 561 (2009).
A. Esamdin, A. G. Lyne, F. Graham-Smith, M. Kramer, R. N. Manchester, and X. Wu, Mon. Not. R. Astron. Soc. 356, 59 (2005).
J. S. Deneva, J. M. Cordes, M. A. McLaughlin, D. J. Nice, D. R. Lorimer, F. Crawford, N. D. R. Bhat, F. Camilo, D. J. Champion, P. C. C. Freire, S. Edel, V. I. Kondratiev, J. W. T. Hessels, F. A. Jenet, L. Kasian, V. M. Kaspi, M. Kramer, P. Lazarus, S. M. Ransom, I. H. Stairs, B. W. Stappers, J. van Leeuwen, A. Brazier, A. Venkataraman, J. A. Zollweg, and S. Bogdanov, Astrophys. J. 703, 2259 (2009).
E. F. Keane, D. A. Ludovici, R. P. Eatough, M. Kramer, A. G. Lyne, M. A. McLaughlin, and B. W. Stappers, Mon. Not. R. Astron. Soc. 401, 1057 (2010).
V. A. Izvekova, A. D. Kuzmin, V. M. Malofeev, and Yu. P. Shitov, Astrophys. Space Sci. 78, 45 (1981).
W. Lewandowski, A. Wolszczan, G. Feiler M. Konacki, and N. Sołtysiński, Astrophys. J. 600, 905 (2004).
V. I. Kondratiev, M. A. McLaughlin, D. R. Lorimer, M. Burgay, A. Possenti, R. Turolla, S. B. Popov, and S. Zane, Astrophys. J. 702, 692 (2009).
E. F. Keane and M. A. McLaughlin, Bull. Astron. Soc. India 39, 1 (2011).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © B.Ya. Losovsky, D.V. Dumsky, 2014, published in Astronomicheskii Zhurnal, 2014, Vol. 91, No. 8, pp. 626–633.
Rights and permissions
About this article
Cite this article
Losovsky, B.Y., Dumsky, D.V. Radio emission of RRAT pulsars at 111 MHz. Astron. Rep. 58, 537–544 (2014). https://doi.org/10.1134/S1063772914080034
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063772914080034