Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Kashin, A. L."'
The hierarchy of motions that we are participating is well known, from the Earth's motion around the Sun and Sun's motion in the Milky Way, up to the Local Group's motion within the Virgo Supercluster of galaxies. The dipole anisotropy of the Cosmic
Externí odkaz:
http://arxiv.org/abs/2111.01554
Autor:
Gurzadyan, V. G., De Paolis, F., Nucita, A. A., Kashin, A. L., Amekhyan, A., Sargsyan, S., Yegorian, G., Qadir, A., Ingrosso, G., Jetzer, Ph., Vetrugno, D.
Publikováno v:
A&A 609, A131 (2018)
This paper is a follow-up of a previous paper about the M82 galaxy and its halo based on Planck observations. As in the case of M82, so also for the M81 galaxy a substantial North-South and East-West temperature asymmetry is found, extending up to ga
Externí odkaz:
http://arxiv.org/abs/1710.04166
Autor:
Gurzadyan, V. G., Ciufolini, I., Paolozzi, A., Kashin, A. L., Khachatryan, H. G., Mirzoyan, S., Sindoni, G.
Publikováno v:
IJMPD, 26 (2017) 1741020
Laser ranging satellites have proved their efficiency for high precision testing of the effect of frame-dragging, one of remarkable predictions of the General Relativity. The analysis of the randomness properties of the residuals of LAGEOS and LAGEOS
Externí odkaz:
http://arxiv.org/abs/1709.10341
Autor:
De Paolis, F., Gurzadyan, V. G., Nucita, A. A., Chemin, L., Qadir, A., Kashin, A. L., Khachatryan, H. G., Sargsyan, S., Yegorian, G., Ingrosso, G., Jetzer, Ph., Vetrugno, D.
Publikováno v:
A&A 593, A57 (2016)
We used Planck data to study the M33 galaxy and find a substantial temperature asymmetry with respect to its minor axis projected onto the sky plane. This temperature asymmetry correlates well with the HI velocity field at 21 cm, at least within a ga
Externí odkaz:
http://arxiv.org/abs/1607.08099
Autor:
Gurzadyan, V. G., De Paolis, F., Nucita, A. A., Ingrosso, G., Kashin, A. L., Khachatryan, H. G., Sargsyan, S., Yegorian, G., Jetzer, Ph., Qadir, A., Vetrugno, D.
Publikováno v:
A&A 582, A77 (2015)
Planck data towards the galaxy M82 are analyzed in the 70, 100 and 143 GHz bands. A substantial north-south and East-West temperature asymmetry is found, extending up to 1 degree from the galactic center. Being almost frequency-independent, these tem
Externí odkaz:
http://arxiv.org/abs/1509.05212
Autor:
De Paolis, F., Gurzadyan, V. G., Nucita, A. A., Ingrosso, G., Kashin, A. L., Khachatryan, H. G., Mirzoyan, S., Yegorian, G., Jetzer, Ph., Qadir, A., Vetrugno, D.
Planck data towards the active galaxy Centaurus A are analyzed in the 70, 100 and 143 GHz bands. We find a temperature asymmetry of the northern radio lobe with respect to the southern one that clearly extends at least up to 5 degrees from the Cen A
Externí odkaz:
http://arxiv.org/abs/1507.05791
We use the Planck LFI 70GHz data to further probe point source detection technique in the sky maps of the cosmic microwave background (CMB) radiation. The method developed by Tegmark et al. for foreground reduced maps and the Kolmogorov parameter as
Externí odkaz:
http://arxiv.org/abs/1503.00346
Publikováno v:
Astronomy & Astrophysics, 566 (2014) A135
The structure of the cold spot, of a non-Gaussian anomaly in the cosmic microwave background (CMB) sky first detected by Vielva et al. is studied using the data by Planck satellite. The obtained map of the degree of stochasticity (K-map) of CMB for t
Externí odkaz:
http://arxiv.org/abs/1404.6347
Autor:
De Paolis, F., Gurzadyan, V. G., Nucita, A. A., Ingrosso, G., Kashin, A. L., Khachatryan, H. G., Mirzoyan, S., Poghosian, E., Jetzer, Ph., Qadir, A., Vetrugno, D.
Publikováno v:
Astronomy and Astrophysics 565, L3 (2014)
Planck's data acquired during the first 15.4 months of observations towards both the disk and halo of the M31 galaxy are analyzed. We confirm the existence of a temperature asymmetry, previously detected by using the 7-year WMAP data, along the direc
Externí odkaz:
http://arxiv.org/abs/1404.4162
Comment on the 'Excess ellipticity of hot and cold spots WMAP data?' by Berntsen, E. and Hansen, F.K
Autor:
Kashin, A. L., Yegoryan, G.
The recent paper by Berntsen and Hansen devoted to the analysis of elliptic-ity of anisotropies in CMB maps, distorts some statements of previous studies, misses relevant papers, along with superficial comparison of the results (in part of definition
Externí odkaz:
http://arxiv.org/abs/1212.2718