29 citations · 127 across the 12 of their papers we have counts for
6 papers · 1 filter
Instability of reconstruction of the low CMB multipoles
Pavel D. Naselsky, Oleg V. Verkhodanov, Mikkel T. B. Nielsen
We discuss the problem of the bias of the Internal Linear Combination (ILC) CMB map and show that it is closely related to the coefficient of cross-correlation K(l) of the true CMB…
A cool R Coronae Borealis star Z UMi
Tonu Kipper, Valentina Klochkova
The high resolution spectra of a R CrB type star Z UMi are analysed. The atmospheric parameters of Z UMi are estimated: Teff=5250+/-250K and log g=0.5+/-0.3. This places Z UMi amon…
The optical spectrum of R Coronae Borealis close to 2003 decline
Tonu Kipper, Valentina Klochkova
Two sets of high-resolution spectra of R CrB obtained during the 2003 light decline are described. The first set was obtained on the descending branch of the light curve when V ~12…
On the Photometric Redshift Estimates for FR II Radio Galaxies
O. V. Verkhodanov, A. I. Kopylov, Yu. N. Pariiskii +2
Using the photometric data on FR II radio galaxies obtained in the Big Trio Program and data from other sources, we confirmed the stable correlation between the spectroscopic and p…
Current status of the CATS database
O. V. Verkhodanov, S. A. Trushkin, H. Andernach +1
We describe the current status of CATS, a publicly accessible database (web-server http://cats.sao.ru) allowing one to search in hundreds of catalogs of astronomical objects discov…
Determination of Ω_Λand H_0 from photometric data of radio galaxies
O. V. Verkhodanov, Yu. N. Parijskij, A. A. Starobinsky
From photometric observations of elliptical galaxies, among which are both radio galaxies and radio-quiet objects, an investigation was carried out of the relationship `redshift --…