Search Results - "Gnedin, N"

Equation of state of the photoionized intergalactic medium by Hui, Lam, Gnedin, Nickolay Y.

“…We develop an efficient method of studying the effects of reionization history on the temperature-density relation of the intergalactic medium in the…”
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A polarimetric method for measuring black hole masses in Active Galactic Nuclei by Piotrovich, M. Yu, Gnedin, Yu. N., Silant'ev, N. A., Natsvlishvili, T. M., Buliga, S. D.

“…The structure of the broad emission line region (BLR) in active galactic nuclei (AGN) remains unclear. We test in this paper a flattened configuration model…”
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Criteria for retrograde rotation of accreting black holes by Mikhailov, A G, Piotrovich, M Yu, Gnedin, Yu N, Natsvlishvili, T M, Buliga, S D

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Determination of the Spins of Supermassive Black Holes in FR I and FR II Radio Galaxies by Mikhailov, A. G., Gnedin, Yu. N.

“…The spins of supermassive black holes in FR I and FR II radio galaxies are estimated using two models for the generation of the relativisitic jets, based on…”
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H I 21 Centimeter Absorption beyond the Epoch of Reionization by Carilli, C. L, Gnedin, N. Y, Owen, F

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New mechanism of radiation polarization in type 1 Seyfert active galactic nuclei by Silant'ev, N. A., Gnedin, Yu. N., Piotrovich, M. Yu, Natsvlishvili, T. M., Buliga, S. D.

“…In most type 1 Seyfert active galactic nuclei (AGNs), the optical linear continuum polarization degree is usually small (less than 1 per cent) and the…”
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The Santa Barbara Cluster Comparison Project: A Comparison of Cosmological Hydrodynamics Solutions by Frenk, C. S, White, S. D. M, Bode, P, Bond, J. R, Bryan, G. L, Cen, R, Couchman, H. M. P, Evrard, A. E, Gnedin, N, Jenkins, A, Khokhlov, A. M, Klypin, A, Navarro, J. F, Norman, M. L, Ostriker, J. P, Owen, J. M, Pearce, F. R, Pen, U.-L, Steinmetz, M, Thomas, P. A, Villumsen, J. V, Wadsley, J. W, Warren, M. S, Xu, G, Yepes, G

“…We have simulated the formation of an X-ray cluster in a cold dark matter universe using 12 different codes. The codes span the range of numerical techniques…”
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Relationship Between the Spins and Masses of Supermassive Black Holes in Distant Active Galactic Nuclei with z > 4 by Mikhailov, A. G., Piotrovich, M. Yu, Buliga, S. D., Natsvlishvili, T. M., Gnedin, Yu. N.

“…Hybrid models for the generation of relativistic jets are used to place constraints on the spins of supermassive black holes (SMBHs) in active galactic nuclei…”
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Formation Histories of Dwarf Galaxies in the Local Group by Ricotti, Massimo, Gnedin, Nickolay Y

“…We compare the properties of dwarf galaxies in the Local Group with the simulated galaxies formed before reionization in a cosmological simulation of…”
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Spectropolarimetric Observations of Magnetic White Dwarfs with the SAO 6-m Telescope by Afanas’ev, V. L., Piotrovich, M. Yu, Gnedin, Yu. N., Buliga, S. D., Natsvlishvili, T. M.

“…The results of spectropolarimetric observations of a number of magnetic white dwarfs obtained on the 6-m optical telescope of the Special Astrophysical…”
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How Universal is the Relation? by Feldmann, R, Gnedin, N. Y, Kravtsov, A. V

“…It is a well-established empirical fact that the surface density of the star formation rate, Delta *SSFR, strongly correlates with the surface density of…”
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Magnetic field and radius of the innermost stable circular orbit near super-massive black holes in active galactic nuclei by Piotrovich, M. Yu, Gnedin, Yu. N., Silant'ev, N. A., Natsvlishvili, T. M., Buliga, S. D.

“…Magnetic fields in an accretion disk around the central black hole can modify the size of the innermost stable circular orbit (ISCO) and can produce a…”
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The most distant quasar at z = 7.08: Probable retrograde rotation of an accreting supermassive black hole by Gnedin, Yu. N., Mikhailov, A. G., Piotrovich, M. Yu

“…We estimate the value of the spin of the supermassive black hole (SMBH) of the high‐redshift quasar ULAS J112001.48 +064124.3 using new observational data for…”
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Nonlinear Spectroscopy of Alkali Atoms in Cold Medium of Astrophysical Relevance by Efimov, Dmitry, Bruvelis, Martins, Bezuglov, Nikolai, Dimitrijević, Milan, Klyucharev, Andrey, Srećković, Vladimir, Gnedin, Yurij, Fuso, Francesco

“…The time-dependent population dynamics of hyperfine (HF) sublevels of n2p3/2n2p3/2 atomic states upon laser excitation in a cold medium of alkali atoms is…”
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Polarization of Radiation and Basic Parameters of the Circumnuclear Region of Active Galactic Nuclei by Gnedin, Yu. N., Piotrovich, M. Yu, Silant’ev, N. A., Natsvlishvili, T. M., Buliga, S. D.

“…The degree of polarization of the radiation in broad emission lines can be used for a unique determination of the dimensionless radius of the broad line…”
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Dependence of the spins of supermassive black holes in quasars on their cosmological redshifts by Yablokov, S. N., Gnedin, Yu. N.

“…Data on the dependences of the masses and bolometric luminosities of Active Galactic Nuclei on their cosmological redshifts are used to determine the redshift…”
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PVLAS experiment: some astrophysical consequences by Gnedin, Yu. N., Piotrovich, M. Yu, Natsvlishvili, T. M.

“…The birefringent effects of photon–pseudo-scalar boson (Goldstone) particle mixing in intergalactic magnetic field are calculated for cosmological objects. We…”
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Spins of Supermassive Black Holes and the Magnetic Fields of Accretion Disks in Active Galactic Nuclei with Maser Emission by Gnedin, Yu. N., Globina, V. N., Piotrovich, M. Yu, Buliga, S. D., Natsvlishvili, T. M.

“…The major parameters of active galactic nuclei (AGN) with maser emission— the magnetic field in the maser emission region and the spin of the central…”
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The magnetic-field structure in a stationary accretion disk by Piotrovich, M. Yu, Silant’ev, N. A., Gnedin, Yu. N., Natsvlishvili, T. M., Buliga, S. D.

“…The magnetic-field structure in regions of stationary, planar accretion disks around active galactic nuclei where general-relativistic effects can be neglected…”
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Spectropolarimetric observations of active galactic nuclei with the 6-m BTA telescope by Afanasiev, V. L., Borisov, N. V., Gnedin, Yu. N., Natsvlishvili, T. M., Piotrovich, M. Yu, Buliga, S. D.

“…We present the results of our spectropolarimetric observations for a number of active galactic nuclei (AGNs) carried out at the 6-m telescope with the SCORPIO…”
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