Search Publications
Search for Candidate Objects with the Sunyaev–Zeldovich Effect in the Radio Source Vicinities—galaxies: clusters: general
Verkhodanov, O. V.; Solovyov, D. I.; Khabibullina, M. L. +2 more
Based on the data from the Westerbork Northern Sky Survey performed at a frequency of 325 MHz in the range of right ascensions 0h ≤ α < 2h and declinations 29° < δ < 78° and using multi-frequency Planck maps, we selected candidate objects with the Sunyaev–Zeldovich effect. The list of the most probable candidates inc…
A comparison of properties of different population radio galaxies based on the Planck mission microwave data
Verkhodanov, O. V.; Solovyov, D. I.; Khabibullina, M. L. +1 more
Applying the stacking method, we examine the areas of the cosmic microwave background radiation (CMB) maps, constructed according to the Planck SpaceObservatory data in the neighbourhood of different populations of radio sources and giant elliptical galaxies. The samples of objects include giant radio galaxies (GRG), radio sources, selected by the…
A comparison of anisotropic statistical properties of CMB maps based on the WMAP and planck space mission data
Verkhodanov, O. V.; Naiden, Ya. V.
We compare the anisotropic properties of the cosmic microwave background (CMB) maps constructed based on the data of NASA's WMAP (9th year of observations) and ESA's Planck (2015 release) space missions. In our analysis, we use two two-dimensional estimators of the scatter of the signal on a sphere, which amount to algorithms of mapping the ratio …
Investigation of the RCR catalog sources in the millimeter and submillimeter ranges based on the Planck mission data
Verkhodanov, O. V.; Majorova, E. K.; Zhelenkova, O. P. +3 more
We have studied the regions of the microwave background radiation maps of the Planck experiment in the neighborhood of the RCR catalog radio sources. From the processed data for bright radio sources in the microwave range, we plotted the calibration curves which allow the brightness of the objects to be measured. For the first time, for 117 object…
Comparison of low-harmonics spectra and maps according to the WMAP and Planck space missions
Verkhodanov, O. V.
We present a comparison of the angular power spectra and maps represented by the WMAP and Planck mission teams. The spectra are compared in the the multi pole range (2 ≤ ℓ ≤ 50). The ℓ =5, 7, 13, 29, 37, 41–46 harmonics have a discrepancy in the angular power spectra. The maps of the microwave background and their phase characteristics are studied…
Two-dimensional spectral estimators of statistical anisotropy and search for the isolated directions in Planck mission data
Verkhodanov, O. V.; Naiden, Ya. V.
We describe a method for the analysis of homogeneity of the microwave background maps based on the behavior of the angular power spectrum C(ℓ) and parity parameter P. The estimator is built using the dispersion variation of the power spectrum of the background signal hemisphere and allows to visualize the statistical anisotropy as a new map which …
Does the contribution of infrared and submillimeter sources reveal itself at low harmonics of the CMB?
Verkhodanov, O. V.; Naiden, Ya. V.
We have computed and studied the mosaic correlation maps of the ILC WMAP microwave background data with the positions of infrared and submillimeter sources. Using the histograms of the signal values in pixels and angular power spectra, we studied the statistical properties of these maps. We discovered similar behavior of a number of harmonics in t…
On two low harmonics of CMB correlation maps
Verkhodanov, O. V.; Naiden, Ya. V.; Keshelava, T. V.
We have analyzed two powerful correlation harmonics (ℓ = 3and ℓ = 6) found in the correlation of the ILC WMAP signal with the submillimeter and infrared range data from the FSC IRAS and Planck catalogs. The mode phases of thesemultipoles were computed. In the spots we have found in the harmonics, the source counts were made from the NVSS, FIRST, F…