Abstract
The results of the first stage of the “Cosmological Gene” project of the Russian Academy of Sciences are reported. These results consist in the accumulation of multi-frequency data in 31 frequency channels in the wavelength interval 1–55 cm with maximum achievable statistical sensitivity limited by the noise of background radio sources at all wavelengths exceeding 1.38 cm. The survey region is determined by constraints 00h < RA < 24h and 40°30′ < DEC < 42°30′. The scientific goals of the project are refined in view of recent proposals to use cosmological background radiation data for the development of a unified physical theory. Experimental data obtained with the RATAN-600 radio telescope are used to refine the contribution of the main “screens” located between the observer and the formation epoch of cosmic background radiation (z = 1100). Experimental data for synchrotron radiation and free-free noise on scales that are of interest for the anisotropy of cosmic microwave background are reported as well as the contribution of these noise components in millimeter-wave experiments to be performed in the nearest years. The role of dipole radio emission of fullerene-type dust nanostructures is shown to be small. The most precise estimates of the role of background radio sources with inverted spectra are given and these sources are shown to create no serious interference in experiments. The average spectral indices of the weakest sources of the NVSS and FIRST catalogs are estimated. The “saturation” data for all wavelengths allowed a constraint to be imposed on the Sunyaev-Zeldovich noise (the SZ noise) at all wavelengths, and made it possible to obtain independent estimates of the average sky temperature from sources, substantially weaker than those listed in the NVSS catalog. These estimates are inconsistent with the existence of powerful extragalactic synchrotron background associated with radio sources. Appreciable “quadrupole” anisotropy in is detected in the distribution of the spectral index of the synchrotron radiation of the Galaxy, and this anisotropy should be taken into account when estimating the polarization of the cosmic microwave background on small l. All the results are compared to the results obtained by foreign researchers in recent years.
Similar content being viewed by others
References
Yu. N. Parijskij, Atomnaya strategiya 8, 19 (2005).
M. Tegmark, D. J. Eisenstein, Wayne Hu, et al., Astrophys. J. 530, 133 (2000).
N. N. Bursov, Yu. N. Parijskij, E. K. Maiorova, et al., Astronom. Zh. 84, 227 (2007).
N. N. Bursov, Dissertation Cand. Phys.-Math. Sci., (Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, 2003).
T. A. Semenova, N. N. Bursov, and Yu. N. Parijskij, Astronom. Zh. 84, 291 (2007).
T. A. Semenova, Yu. N. Parijskij, and N. N. Bursov, Astronom. Zh. 86, 3 (2007).
T. A. Semenova, Yu. N. Parijskij, and P. G. Tsybulev, Astrophysical Bulletin 64, 191 (2009).
T. A. Semenova, N. N. Bursov, and Yu. N. Parijskij, Astrophysical Bulletin 64, 270 (2009).
T. A. Semenova, Dissertation Cand. Phys.-Math. Sci. (Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, 2009).
P. G. Tsybulev, A. B. Berlin, N. A. Nizhel’skij, et al., Astrophysical Bulletin 62, 193 (2007).
O. V. Verkhodanov, ASPC 125, 46 (1997).
P. D. Nasel’skii, D. I. Novikov, and I. D. Novikov, Reliktovoe isluchnie Vselennoi (Cosmic Background Radiation) (Nauka: Moscow, 2003).
O. V. Verkhodanov and Yu. N. Parijskij, Reliktovoe isluchnie Vselennoi (Cosmic Background Radiation) (Fizmatlit, Moscow, 2009) [in Russian].
H. E. Jorgensen, E. V. Kotok, I. P. Naselsky, et al., astro-ph/9910295v1.
C. G. T. Haslam, U. Klein, C. J. Salter, et al., Astronom. and Astrophys. 100, 209 (1981).
C. G. T. Haslam, C. J. Salter, H. Stoffel, and W. E. Wilson, Astronom. and Astrophys. Suppl. Ser. 47, 1 (1982).
R. D. Ekers, M. Massardi, and E. M. Sadler, Pos(MRU)047, http://pos.sisa.it/cgi-bin//reader/conf.cgi?confid=52
P. Vielva, et al., Monthly Notices Roy. Astronom. Soc. 344, 89 (2003).
http://www.rssd.esa.int/index.php?project=planck, “Bluebook”.
Yu. N. Parijskij and D. V. Korol’kov, Astrofizika i kosmicheskaya fizika, Itogi Nauki Tekhn. Ser. Astronomiya 31, 1 (1986).
A. I. Kopylov, V. M. Goss, Yu. N. Parijskij et al., Pis’ma Astronom. Zh. 32, 483 (2006).
M. G. Mingaliev, Yu. V. Sotnikova, N. N. Bursov et al., Astronom. Zh. 84, 387 (2007).
N. S. Soboleva, E. K. Majorova, O. P. Zhelenkova, et al., Astrophysical Bulletin 65, 42 (2010).
Author information
Authors and Affiliations
Additional information
Original Russian Text © Yu.N. Parijskij, M.G. Mingaliev, N.A. Nizhel’skii, N.N. Bursov, A.B. Berlin, A.A. Grechkin, V.I. Zharov, G.V. Zhekanis, E.K. Majorova, T.A. Semenova, V.A. Stolyarov, P.G. Tsybulev, D.V. Kratov, R.Yu. Udovitskii, V.B. Khaikin, 2011, published in Astrofizicheskii Byulleten, 2011, Vol. 66, No. 4, pp. 453–466.
Rights and permissions
About this article
Cite this article
Parijskij, Y.N., Mingaliev, M.G., Nizhel’skii, N.A. et al. Multi-frequency survey of background radiations of the Universe. The “Cosmological Gene” project. First results. Astrophys. Bull. 66, 424–435 (2011). https://doi.org/10.1134/S1990341311040043
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1990341311040043