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V. A. Murzin

Publications and source records attributed to V. A. Murzin.

6 recordsLinked to original sources
arXiv2025

Photometric Stability of an EMCCD Camera at 1-s Exposures

We present the results of testing an iXonUltra 888 EMCCDcamera to determine the operating parameters for short-exposure photometry of stars. As a result of the testing, those camera modes were selected in which the temporal instability of the electron multiplication charge does not significantly affect the light curves. In addition, the photometry of the eclipsing variable star ZTFJ 0038+2030, obtained with the Zeiss-1000 telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences, is presented. We have shown the advantages and disadvantages of 1-s exposures for studying variable stars.

astro-ph.IM↗
arXiv2021

Development of Large-Format Camera Systems Based on the Latest Generation Sensors for the 6-m Telescope

The design and implementation of astronomical cameras based on the large-format CCD and CMOS detectors is described in this paper. The Dinacon-5 controller is used for work with the CCDs and to achieve high performance and low noise. A new controller is designed for CMOS sensors. The main characteristics of the provided systems are estimated on the basis of experimental data. The spatial autocorrelation analysis is applied for PSF estimation. The obtained test results are presented.

astro-ph.IM↗
arXiv2013

IR Spectrometer Project for the BTA Telescope

We introduce a project of new cooled infrared spectrometer-photometer for 6-m telescope BTA (Special Astrophysical Observatory of Russian Science Academy). The device would extend the wavelength range accessible for observations on the 6-m BTA telescope toward near infrared (0.8-2.5 um).

astro-ph.IM↗
arXiv2013

Polarization effects in the quasi - elastic (p,2p) reaction with the nuclear S - shell protons at 1 GeV

The polarization of the secondary protons in the (p,2p) reaction with the S - shell protons of nuclei 4He, 6Li, 12C, 28Si, 40Ca was measured at 1 GeV unpolarized proton beam. The spin correlation parameters Cij for the 4He and 12C targets also were for the first time obtained as well. The polarization measurements were performed by means of a two - arm magnetic spectrometer, each arm of which was equipped with the multiwire proportional chamber polarimeter. This experiment was aimed to study a modification of the proton - proton scattering matrix in the nuclear medium.

nucl-ex↗
arXiv2012

Polarization and spin correlation parameters in proton knockout reactions from s1/2 - orbits at 1 GeV

The polarization of the secondary protons (P1,2) in the (p,2p) reaction with the S - shell protons of nuclei 4He, 6Li, 12C, 28Si, 40Ca was measured at 1 GeV unpolarized proton beam. The spin correlation parameters Cij for the 4He and 12C targets also were for the first time obtained. The polarization measurements were performed by means of a two - arm magnetic spectrometer each arm of which was equipped with multiwire - proportional chambers polarimeter.

nucl-ex↗