Zobrazeno 1 - 10
of 530
pro vyhledávání: '"Mineshige, S"'
The cataclysmic variable MV Lyr was present in the Kepler field yielding a light curve with the duration of almost 1500 days with 60 second cadence. Such high quality data of this nova-like system with obvious fast optical variability show multicompo
Externí odkaz:
http://arxiv.org/abs/1908.11745
We perform two-dimensional radiation hydrodynamical simulations of accretion flows onto a black hole (BH) with a mass of $10^3\leq M_{\rm BH}/M_{\odot} \lesssim 10^6$ in order to study rapid growth of BHs in the early Universe. For spherically symmet
Externí odkaz:
http://arxiv.org/abs/1705.05382
We present spectral and timing analyses of simultaneous X-ray and UV observations of the VY Scl system MV Lyr taken by XMM-Newton, containing the longest continuous X-ray+UV light curve and highest signal-to-noise X-ray (EPIC) spectrum to date. The R
Externí odkaz:
http://arxiv.org/abs/1702.08313
Blazars show rapid and violent variabilities, which timescale are often less than a day. We studied intraday variations by applying a shot analysis technique to Kepler monitoring of blazar W2R 1926+42 in Quarter 14. We obtained a mean profile calcula
Externí odkaz:
http://arxiv.org/abs/1502.02243
The stochastic variability (flickering) of the nova-like system (subclass of cataclysmic variable) MV Lyr yields a complicated power density spectrum with four break frequencies. Scaringi et al. (2012) analysed high-cadence Kepler data of MV Lyr, tak
Externí odkaz:
http://arxiv.org/abs/1412.3719
Autor:
Miller, J. M., Mineshige, S., Kubota, A., Yamada, S., Aharonian, F., Done, C., Kawai, N., Hayashida, K., Reis, R., Mizuno, T., Noda, H., Ueda, Y., Shidatsu, M.
Thanks to extensive observations with X-ray missions and facilities working in other wavelengths, as well as rapidly--advancing numerical simulations of accretion flows, our knowledge of astrophysical black holes has been remarkably enriched. Rapid p
Externí odkaz:
http://arxiv.org/abs/1412.1173
Autor:
Done, C., Tsujimoto, M., Cackett, E., Herder, J. W. den, Dotani, T., Enoto, T., Ferrigno, C., Kallman, T., Kohmura, T., Laurent, P., Miller, J., Mineshige, S., Mori, H., Nakazawa, K., Paerels, F., Sakurai, S., Soong, Y., Sugita, S., Takahashi, H., Tamagawa, T., Tanaka, Y., Terada, Y., Uno, S.
There is still 10-20% uncertainty on the neutron star (NS) mass-radius relation. These uncertainties could be reduced by an order of magnitude through an unambiguous measure of M/R from the surface redshift of a narrow line, greatly constraining the
Externí odkaz:
http://arxiv.org/abs/1412.1164
In order to understand the physical processes underlying clump formation in outflow from supercritical accretion flow, we performed two-dimensional radiation hydrodynamic (RHD) simulations. We focus our discussion on the nature of RHD instability in
Externí odkaz:
http://arxiv.org/abs/1401.2629
We analysed an X-ray light curve of the dwarf nova RU Peg taken by XMM-Newton with a duration of 46300 s. The power density spectrum has a complicated shape with two red noise and two white noise components, indicating the presence of two turbulent r
Externí odkaz:
http://arxiv.org/abs/1311.7487
We study the observational signatures of the relativistic slim disc of 10 M_sun black hole, in a wide range of mass accretion rate, mdot, dimensionless spin parameter, a_ast, and viewing angle, i. In general, the innermost temperature, T_in increases
Externí odkaz:
http://arxiv.org/abs/1308.3291