Zobrazeno 1 - 10
of 904
pro vyhledávání: '"Shibanov, A. A."'
Autor:
Karpova, A. V., Zharikov, S. V., Zyuzin, D. A., Kirichenko, A. Yu., Shibanov, Yu. A., Márquez, I. F.
Context. Spider pulsars are millisecond pulsars in tight binary systems, in which a low-mass companion star is heated and ablated by the pulsar wind. Their observations allow one to study stellar evolution with formation of millisecond pulsars and ph
Externí odkaz:
http://arxiv.org/abs/2411.16350
Autor:
Kolbin, A. I., Karpova, A. V., Suslikov, M. V., Bikmaev, I. F., Gilfanov, M. R., Khamitov, I. M., Shibanov, Yu. A., Zyuzin, D. A., Beskin, G. M., Plokhotnichenko, V. L., Gutaev, A. G., Karpov, S. V., Lyapsina, N. V., Medvedev, P. S., Sunyaev, R. A., Kirichenko, A. Yu., Gorbachev, M. A., Irtuganov, E. N., Gumerov, R. I., Sakhibullin, N. A., Shablovinskaya, E. S., Malygin, E. A.
SRGe J194401.8+284452 is the brightest point-like X-ray object within the position uncertainty ellipse of an unidentified $\gamma$-ray source 4FGL J1943.9+2841. We performed multi-wavelength spectral and photometric studies to determine its nature an
Externí odkaz:
http://arxiv.org/abs/2408.14136
Autor:
Bobakov, A. V., Kirichenko, A. Yu., Zharikov, S. V., Karpova, A. V., Zyuzin, D. A., Shibanov, Yu. A., Mennickent, R. E., Garcia-Álvarez, D.
Context. Two millisecond pulsars, PSR J1513$-$2550 and PSR J2017$-$1614, with spin periods of about 2.1 and 2.3 ms were recently discovered in the radio and $\gamma$-rays and classified as black widow pulsars in tight binary stellar systems with orbi
Externí odkaz:
http://arxiv.org/abs/2407.17187
Autor:
Zyuzin, D. A., Kirichenko, A. Yu., Karpova, A. V., Shibanov, Yu. A., Zharikov, S. V., Gilfanov, M. R., Tórtola, C. Perez
An unidentified $\gamma$-ray source 4FGL J1838.2+3223 has been proposed as a pulsar candidate. We present optical time-series multi-band photometry of its likely optical companion obtained with the 2.1-m telescope of Observatorio Astron\'omico Nacion
Externí odkaz:
http://arxiv.org/abs/2311.09108
Autor:
Kirichenko, A. Yu., Zharikov, S. V., Karpova, A. V., Fonseca, E., Zyuzin, D. A., Shibanov, Yu. A., López, E. A., Gilfanov, M. R., Cabrera-Lavers, A., Geier, S., Dong, F. A., Good, D. C., McKee, J. W., Meyers, B. W., Stairs, I. H., McLaughlin, M. A., Swiggum, J. K.
PSR J1641+8049 is a 2 ms black widow pulsar with the 2.2 h orbital period detected in the radio and $\gamma$-rays. We performed new phase-resolved multi-band photometry of PSR J1641+8049 using the OSIRIS instrument at the Gran Telescopio Canarias. Th
Externí odkaz:
http://arxiv.org/abs/2311.08688
Autor:
Bobakov, A. V., Karpova, A. V., Zharikov, S. V., Kirichenko, A. Yu., Shibanov, Yu. A., Zyuzin, D. A.
We present the results of optical spectroscopy of stellar companions to three binary millisecond pulsars, PSRs J0621$+$2514, J2317$+$1439 and J2302$+$4442, obtained with the Gran Telescopio Canarias. The spectrum of the J0621$+$2514 companion shows a
Externí odkaz:
http://arxiv.org/abs/2307.02167
The Fermi catalogue contains about 2000 unassociated $\gamma$-ray sources. Some of them were recently identified as pulsars, including so called redbacks and black widows, which are millisecond pulsars in tight binary systems with non- and partially-
Externí odkaz:
http://arxiv.org/abs/2306.17593
Publikováno v:
MNRAS 516, 13-25 (2022)
XMM-Newton observations of the middle-aged radio-quiet $\gamma$-ray pulsar J0554+3107 allowed us, for the first time, firmly identify it in X-rays by detection of pulsations with the pulsar period. In the 0.2-2 keV band, the pulse profile shows two p
Externí odkaz:
http://arxiv.org/abs/2208.06160
Publikováno v:
In Vacuum January 2025 231 Part A
Autor:
Zyuzin, D. A., Zharikov, S. V., Karpova, A. V., Kirichenko, A. Yu., Shibanov, Yu. A., Geier, S., Potekhin, A. Yu., Suleimanov, V. F., Cabrera-Lavers, A.
Publikováno v:
Mon. Not. R. Astron. Soc., 513, 6088-6094 (2022)
The 840 kyr old pulsar PSR J1957+5033, detected so far only in $\gamma$- and X-rays, is a nearby and rather cool neutron star with a temperature of 0.2--0.3 MK, a distance of $\la$1 kpc, and a small colour reddening excess $E(B-V) \approx 0.03$. Thes
Externí odkaz:
http://arxiv.org/abs/2205.13606