Zobrazeno 1 - 10
of 371
pro vyhledávání: '"Afanasiev, A V"'
Autor:
Chilingarian, Igor, Grishin, Kirill, Afanasiev, Anton V., Mironov, Anton, Fabricant, Daniel, Moran, Sean, Caldwell, Nelson, Katkov, Ivan, Ershova, Irina
Ultra-diffuse galaxies (UDGs) are spatially extended, low surface brightness stellar systems with regular elliptical-like morphology found in large numbers in galaxy clusters and groups. Studies of the internal dynamics and dark matter content of UDG
Externí odkaz:
http://arxiv.org/abs/2306.08049
Autor:
Chilingarian, Igor, Grishin, Kirill, Afanasiev, Anton V., Mironov, Anton, Fabricant, Daniel, Moran, Sean, Caldwell, Nelson, Katkov, Ivan, Ershova, Irina
We present preliminary results from our spectroscopic survey of low-luminosity early-type galaxies in the Coma cluster conducted with the Binospec spectrograph at the 6.5~m MMT. From spatially-resolved profiles of internal kinematics and stellar popu
Externí odkaz:
http://arxiv.org/abs/2306.08048
Autor:
Afanasiev, Anton V., Mei, Simona, Fu, Hao, Shankar, Francesco, Amodeo, Stefania, Stern, Daniel, Cooke, Elizabeth A., Gonzalez, Anthony H., Noirot, Gaël, Rettura, Alessandro, Wylezalek, Dominika, De Breuck, Carlos, Hatch, Nina A., Stanford, Spencer A., Vernet, Joël
Publikováno v:
A&A 670, A95 (2023)
(Abridged) We study the galaxy mass-size relation in CARLA spectroscopically confirmed clusters at $1.4
Externí odkaz:
http://arxiv.org/abs/2212.00031
Autor:
Mei, Simona, Hatch, Nina A., Amodeo, Stefania, Afanasiev, Anton V., De Breuck, Carlos, Stern, Daniel, Cooke, Elizabeth A., Gonzalez, Anthony H., Noirot, Gaël, Rettura, Alessandro, Seymour, Nick, Stanford, Spencer A., Vernet, Joël, Wylezalek, Dominika
Publikováno v:
A&A 670, A58 (2023)
(Abridged) To understand if the morphology-density and passive-density relations are already established at z>1.5, we study galaxies in 16 confirmed clusters at $1.3
Externí odkaz:
http://arxiv.org/abs/2209.02078
Autor:
Afanasiev, Anton V., Chilingarian, Igor V., Grishin, Kirill A., Makarov, Dmitry, Makarova, Lidia, Fabricant, Daniel, Caldwell, Nelson, Moran, Sean
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 520, Issue 4, pp.6312-6321, 2023
Low-mass early-type galaxies, including dwarf spheroidals (dSph) and brighter dwarf ellipticals (dE), dominate the galaxy population in groups and clusters. Recently, an additional early-type population of more extended ultradiffuse galaxies (UDGs) h
Externí odkaz:
http://arxiv.org/abs/2206.07059
Autor:
Serebrov, A. P., Samoilov, R. M., Ivochkin, V. G., Fomin, A. K., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Volkov, S. S., Chernyj, A. V., Zherebtsov, O. M., Chaikovskii, M. E., Petelin, A. L., Izhutov, A. L., Tuzov, A. A., Sazontov, S. A., Gromov, M. O., Afanasiev, V. V., Zaytsev, M. E., Gerasimov, A. A., Fedorov, V. V.
Publikováno v:
Phys. Rev. D 104, 032003 (2021)
The experiment Neutrino-4 had started in 2014 with a detector model and then was continued with a full-scale detector in 2016 - 2021. In this article we describe all steps of preparatory work on this experiment. We present all results of the Neutrino
Externí odkaz:
http://arxiv.org/abs/2005.05301
Analysis of data presented in the paper -- Unveiling the double-well energy landscape in a ferroelectric layer, by M. Hoffmann, et al., Nature 565, 464 (2019) -- suggesting the claims of lack of hysteresis and s-curve trajectory are unfounded.
Externí odkaz:
http://arxiv.org/abs/2003.00426
We present a thorough analysis of the foundations of models of stabilization of negative capacitance (NC) in a ferroelectric (FE) layer by capacitance matching to a dielectric layer, which claim that the FE is stabilized in a low polarization state w
Externí odkaz:
http://arxiv.org/abs/2003.00424
Autor:
Chilingarian, Igor V., Grishin, Kirill A., Afanasiev, Anton V., Fabricant, Daniel, Moran, Sean
Spectroscopic studies of low-luminosity early-type galaxies are essential to understand their origin and evolution but remain challenging because of low surface brightness levels. We describe an observational campaign with the new high-throughput Bin
Externí odkaz:
http://arxiv.org/abs/1910.04188
Observational studies of ultra-diffuse galaxies (UDGs) represent a significant challenge because of their very low surface brightnesses. A feasible approach is to identify "future" UDGs when their stars are still young. Using data mining, we found 12
Externí odkaz:
http://arxiv.org/abs/1909.13460