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MASTER OT J072007.30+451611.6: A Polar with Strong Optical Variability and Suppressed He II Emission
A. V. Bobakov, S. V. Zharikov, A. V. Karpova +8
The transient optical source MASTER OT J072007.30+451611.6 has been recently discovered and proposed as a peculiar polar with an unusually high amplitude of the orbital brightness…
Optical spectral observations of three binary millisecond pulsars
A. V. Bobakov, A. V. Karpova, S. V. Zharikov +3
We present the results of optical spectroscopy of stellar companions to three binary millisecond pulsars, PSRs J06212514, J23171439 and J23024442, obtained with the Gran T…
Searching for optical companions to four binary millisecond pulsars with the Gran Telescopio Canarias
A. Yu. Kirichenko, A. V. Karpova, D. A. Zyuzin +6
We report on multi-band photometric observations of four binary millisecond pulsars with the Gran Telescopio Canarias. The observations led to detection of binary companions to PSR…
Detection of the PSR J1741+1351 white dwarf companion with the Gran Telescopio Canarias
D. A. Zyuzin, A. Yu. Kirichenko, A. V. Karpova +4
We report detection of the binary companion to the millisecond pulsar J1741+1351 with the Gran Telescopio Canarias. The optical source position coincides with the pulsar coordinate…
The ultracool helium-atmosphere white dwarf companion of PSR J0740+6620?
D. M. Beronya, A. V. Karpova, A. Yu. Kirichenko +4
We report the detection of the likely companion of the binary millisecond pulsar J0740+6620 with the Gran Telescopio Canarias in the and bands. The position of the detect…
Optical identification of the binary companion to the millisecond PSR J2302+4442 with the Gran Telescopio Canarias
A. Yu. Kirichenko, S. V. Zharikov, D. A. Zyuzin +4
We report detection of the binary companion to the millisecond pulsar J2302+4442 based on the deep observations performed with the Gran Telescopio Canarias. The observations reveal…
Optical identification of the millisecond pulsar J0621+2514
A. V. Karpova, D. A. Zyuzin, Yu. A. Shibanov +2
Using the SDSS and Pan-STARRS1 survey data, we found a likely companion of the recently discovered binary -ray radio-loud millisecond pulsar J0621+2514. Its visual brightness is…
XMM-Newton Studies of the Supernova Remnant G350.02.0
A. Karpova, P. Shternin, D. Zyuzin +2
We report the results of XMM-Newton observations of the Galactic mixed-morphology supernova remnant G350.02.0. Diffuse thermal X-ray emission fills the north-western part of the…
Thermal properties of the middle-aged pulsar J1741-2054
A. Karpova, A. Danilenko, Yu. Shibanov +2
We present results of the spectral analysis of the X-ray emission from the middle-aged Fermi pulsar J17412054 using all Chandra archival data collected in 2010 and 2013. We conf…