Zobrazeno 1 - 10
of 224
pro vyhledávání: '"Titov, O. A."'
Autor:
Frey, S., An, T., Gabányi, K., Gurvits, L., Krezinger, M., Melnikov, A., Mohan, P., Paragi, Z., Perger, K., Shu, F., Titov, O., de Vicente, P., Zhang, Y.
Publikováno v:
Proceedings of Science, Vol. 428, id. PoS(EVN2022)022 (2023)
The powerful high-redshift quasar J2102+6015 (at z=4.575) may provide useful information for studying supermassive black hole growth, galaxy evolution and feedback in the early Universe. The source has so far been imaged with very long baseline inter
Externí odkaz:
http://arxiv.org/abs/2301.07355
Autor:
Velović, Velibor, Filipović, M. D., Barnes, L., Norris, R. P., Tremblay, C. D., Heald, G., Rudnick, L., Shabala, S. S., Pannuti, T. G., Andernach, H., Titov, O., Waddell, S. G. H., Koribalski, B. S., Grupe, D., Jarrett, T., Alsaberi, R. Z. E., Carretti, E., Collier, J. D., Einecke, S., Galvin, T. J., Hotan, A., Manojlović, P., Marvil, J., Nandra, K., Reiprich, T. H., Rowell, G., Salvato, M., Whiting, M.
We present the discovery of highly-collimated radio jets spanning a total of 355 kpc around the nearby elliptical galaxy NGC 2663, and the possible first detection of recollimation on kiloparsec scales. The small distance to the galaxy (~28.5 Mpc) al
Externí odkaz:
http://arxiv.org/abs/2207.06713
We report a reanalysis of the reactor antineutrino energy spectra based on the new relative measurements of the ratio $R=\!^{e}S_5/^{e}S_9$ between cumulative $\beta$ spectra from $^{235}$U and $^{239}$Pu, performed at a research reactor in National
Externí odkaz:
http://arxiv.org/abs/2103.01684
Autor:
Charlot, P., Jacobs, C. S., Gordon, D., Lambert, S., de Witt, A., Böhm, J., Fey, A. L., Heinkelmann, R., Skurikhina, E., Titov, O., Arias, E. F., Bolotin, S., Bourda, G., Ma, C., Malkin, Z., Nothnagel, A., Mayer, D., MacMillan, D. S., Nilsson, T., Gaume, R.
Publikováno v:
A&A 644, A159 (2020)
A new realization of the International Celestial Reference Frame (ICRF) is presented based on the work achieved by a working group of the International Astronomical Union (IAU) mandated for this purpose. This new realization, referred to as ICRF3, is
Externí odkaz:
http://arxiv.org/abs/2010.13625
Autor:
Barabanov, A. L., Titov, O. A.
Publikováno v:
Phys. Rev. C 99, 045502 (2019)
Due to a directional asymmetry of neutrino emission caused by parity violation, a sample of radioactive atoms experiences a small recoil force from neutrino radiation accompanying electron capture by polarized nuclei. An expression for this force is
Externí odkaz:
http://arxiv.org/abs/1810.09896
Publikováno v:
A&A 618, A68 (2018)
Context. Radio-loud active galactic nuclei in the early Universe are rare. The quasars J0906+6930 at redshift z=5.47 and J2102+6015 at z=4.57 stand out from the known sample with their compact emission on milliarcsecond (mas) angular scale with high
Externí odkaz:
http://arxiv.org/abs/1807.06837
Autor:
Titov, O., Krásná, H.
We propose an alternative method to detect the secular aberration drift induced by the solar system acceleration due to the attraction to the Galaxy centre. This method is free of the individual radio source proper motion caused by intrinsic structur
Externí odkaz:
http://arxiv.org/abs/1802.05347
Autor:
Titov, O., Pursimo, T., Johnston, H. M., Stanford, L. M., Hunstead, R. W., Jauncey, D. L., Zenere, K. A.
In extending our spectroscopic program, which targets sources drawn from the International Celestial Reference Frame (ICRF) Catalog, we have obtained spectra for about 160 compact flat-spectrum radio sources and determined redshifts for 112 quasars a
Externí odkaz:
http://arxiv.org/abs/1702.06644
Autor:
Titov, O.
The geodetic VLBI technique is capable of measuring the Sun's gravity light deflection from distant radio sources around the whole sky. This light deflection is equivalent to the conventional gravitational delay used for the reduction of geodetic VLB
Externí odkaz:
http://arxiv.org/abs/1702.06647
Oscillation characteristics of active and sterile neutrinos and neutrino anomalies at shot distances
Publikováno v:
Physics of Atomic Nuclei, 2016, Vol. 79, No. 5, pp. 708-720
A generalized phenomenological (3 + 2 + 1)-model with three active and three sterile neutrinos is considered for the calculation of the neutrino oscillation characteristics at normal mass hierarchy of active neutrinos and significant splitting betwee
Externí odkaz:
http://arxiv.org/abs/1612.06544