1,211 research outputs found
Observations of Sy2 galaxy NGC 3281 by XMM-Newton and INTEGRAL satellites
We present here the results of our analysis of X-ray properties of Seyfert 2
galaxy NGC 3281, based on the observational data obtained by XMM-Newton and
INTEGRAL within the energy ranges 0.2-12 keV and 20-150 keV, respectively. The
XMM-Newton spectrum of this object is presented for the first time. We show
that fitting the X-ray spectrum of this galaxy with models based on the
reflection from the disc with infinite column density yields non-physical
results. More appropriate fit takes into account both transmitted and reflected
emission, passed through a gas-dusty torus-like structure. Keeping this in
mind, to model the inhomogeneous clumpy torus, we used the MYTorus model.
Hence, we propose that the torus of NGC 3281 is not continuous structure, but
it consists of separate clouds, which is in a good agreement with the results
of near-IR observations. Using this assumption, we found that the torus
inclination angle and the hydrogen column density are 66.98^{+2.63}_{-1.34}
degrees and 2.08^{+0.35}_{-0.18}x10^{24} cm^{-2}, respectively. Also, the
emission of the hot diffuse gas with temperature ~590 eV and warm absorption
were detected.Comment: 8 pages, 5 figures, 2 tables, accepted for publication in Advances in
Astronomy and Space Physic
The role of elective courses in training students ΠΎf preventive medicine faculty
By the example of professional training of students of medical-prophylactic faculty the role of disciplines at the choice was substantiated in the organization of educational process at medical high schoolΠΠ° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠΈ ΡΡΡΠ΄Π΅Π½ΡΠΎΠ² ΠΌΠ΅Π΄ΠΈΠΊΠΎ-ΠΏΡΠΎΡΠΈΠ»Π°ΠΊΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°ΠΊΡΠ»ΡΡΠ΅ΡΠ° ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½Π° ΡΠΎΠ»Ρ Π΄ΠΈΡΡΠΈΠΏΠ»ΠΈΠ½ ΠΏΠΎ Π²ΡΠ±ΠΎΡΡ Π² ΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΈ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° Π² ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΎΠΌ Π²ΡΠ·
Studying the long-time variability of the Seyfert 2 galaxy NGC 4388 with INTEGRAL and Swift
We present analysis results on the Seyfert 2 galaxy NGC 4388 based on 6 yr of INTEGRAL data combined with Swift/Burst Alert Telescope survey and Swift/X-Ray Telescope pointed observations. These data, taken from 2003 to 2009, allow us to study the broad-band properties of this active galactic nucleus in the 0.3-300 keV energy range. The continuum emission of NGC 4388 is well represented by an absorbed power-law model with exponential cut-off at high energies and an upper limit on the reflection component of R < 0.5. We find slow strong variations of the hard X-ray emission, indicating both flux and spectral slope changes on the 3-6 months time-scale. In comparison with previous results on NGC 4388, the source shows a complex variability behaviour, i.e. the spectral shape and the 20-60 keV flux vary independentl
Is KPD 1930+2752 a good SN Ia progenitor?
We investigate the evolution of a binary system which initially has an orbital period of 2^h 17^m and contains a 0.5 M_sun helium star with a white dwarf companion of 0.97 M_sun, similarly to suggested SN Ia candidate progenitor KPD 1930+2752. We show that the helium star completes core helium burning and becomes a white dwarf before components merge. The most probable outcome of the merger of components is formation of a massive white dwarf, despite initially the total mass of the system is above the Chandrasekhar mass
The experience of interdepartmental interaction for doctors of preventive medicine
The article describes the possibility of effective interdepartmental cooperation in doctors trainingΠ ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ ΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΎΠ½Π½ΠΎ-ΠΏΠ΅Π΄Π°Π³ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π°ΡΠΏΠ΅ΠΊΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΌΠ΅ΠΆΠΊΠ°ΡΠ΅Π΄ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΏΡΠΈ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠ΅ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠΎΠ² Ρ Π²ΡΡΡΠΈΠΌ ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΈΠΌ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅
FrΓ©chet mimo-filters
ΠΠ΅Π΄ΠΈΠ°Π½Π½Π°Ρ ΡΠΈΠ»ΡΡΡΠ°ΡΠΈΡ ΠΏΠΎΠ»ΡΡΠΈΠ»Π° ΡΠΈΡΠΎΠΊΠΎΠ΅ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½ΠΈΠ΅ ΠΏΡΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ΅ ΡΠΊΠ°Π»ΡΡΠ½ΡΡ
ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΠΉ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² ΡΠΈΠ»ΡΡΡΠ°ΡΠΈΠΈ, ΡΠΎΡ
ΡΠ°Π½ΡΡΡΠΈΡ
ΠΏΠ΅ΡΠ΅ΠΏΠ°Π΄Ρ ΡΡΠΊΠΎΡΡΠΈ. ΠΠ»Π°Π²Π½Π°Ρ ΠΈΠ΄Π΅Ρ ΠΌΠ΅Π΄ΠΈΠ°Π½Π½ΠΎΠΉ ΡΠΈΠ»ΡΡΡΠ°ΡΠΈΠΈ ΡΠΎΡΡΠΎΠΈΡ Π² ΡΠΎΠΌ, ΡΡΠΎ ΡΠ΅Π½ΡΡΠ°Π»ΡΠ½ΡΠΉ ΠΏΠΈΠΊΡΠ΅Π»Ρ ΡΠΊΠ°Π½ΠΈΡΡΡΡΠ΅ΠΉ ΠΌΠ°ΡΠΊΠΈ Π·Π°ΠΌΠ΅Π½ΡΠ΅ΡΡΡ ΠΌΠ΅Π΄ΠΈΠ°Π½ΠΎΠΉ Π²ΡΠ΅Ρ
ΠΏΠΈΠΊΡΠ΅Π»Π΅ΠΉ, ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΡΡ Π² ΠΌΠ°ΡΠΊΠ΅. Π ΡΡΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΈΠ΄Π΅Ρ ΡΠ°ΡΡΠΈΡΡΠ΅ΡΡΡ Π½Π° Π²Π΅ΠΊΡΠΎΡΠ½ΠΎ-Π·Π½Π°ΡΠ½ΡΠ΅ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ. Π Π°ΡΡΠΈΡΠ΅Π½ΠΈΠ΅ ΠΎΡΠ½ΠΎΠ²ΡΠ²Π°Π΅ΡΡΡ Π½Π° ΡΠΎΠΌ ΡΠ°ΠΊΡΠ΅, ΡΡΠΎ ΠΌΠ΅Π΄ΠΈΠ°Π½Π° ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ°ΠΊΠΆΠ΅ ΡΠΎΡΠΊΠΎΠΉ, ΠΊΠΎΡΠΎΡΠ°Ρ ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·ΠΈΡΡΠ΅Ρ ΡΡΠΌΠΌΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠΉ ΠΌΠ΅ΠΆΠ΄Ρ Π½Π΅ΠΉ ΠΈ Π²ΡΠ΅ΠΌΠΈ ΡΠΊΠ°Π»ΡΡΠ½ΡΠΌΠΈ ΠΏΠΈΠΊΡΠ΅Π»ΡΠΌΠΈ Π²Π½ΡΡΡΠΈ ΠΌΠ°ΡΠΊΠΈ. Π’ΠΎΡΠΊΠΎΠΉ Π€ΡΠ΅ΡΠ΅ ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²Π° Π²Π΅ΠΊΡΠΎΡΠ½ΠΎ-Π·Π½Π°ΡΠ½ΡΡ
ΠΏΠΈΠΊΡΠ΅Π»Π΅ΠΉ Π² Π½Π΅ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΌ ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π΅ (Ρ Π·Π°Π΄Π°Π½Π½ΠΎΠΉ ΠΌΠ΅ΡΡΠΈΠΊΠΎΠΉ) ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ°ΠΊΠΎΠΉ Π²Π΅ΠΊΡΠΎΡ, ΡΡΠΌΠΌΠ° ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠΉ Π΄ΠΎ ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ ΠΎΡ Π²ΡΠ΅Ρ
Π²Π΅ΠΊΡΠΎΡΠ½ΡΡ
ΠΏΠΈΠΊΡΠ΅Π»Π΅ΠΉ (Π½Π°Ρ
ΠΎΠ΄ΡΡΠΈΡ
ΡΡ Π²Π½ΡΡΡΠΈ ΠΌΠ°ΡΠΊΠΈ) ΠΈΠΌΠ΅Π΅Ρ ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅. Π Π΄Π°Π½Π½ΠΎΠΉ ΡΡΠ°ΡΡΠ΅ ΠΏΠΎΠ½ΡΡΠΈΠ΅ ΡΠΎΡΠΊΠΈ Π€ΡΠ΅ΡΠ΅ ΡΠ°ΡΡΠΈΡΡΠ΅ΡΡΡ Π΄ΠΎ ΠΎΠ±ΠΎΠ±ΡΠ΅Π½Π½ΠΎΠΉ ΠΌΠ΅Π΄ΠΈΠ°Π½Ρ Π€ΡΠ΅ΡΠ΅, Π² ΠΊΠΎΡΠΎΡΠΎΠΉ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΡΡΡ Π°Π³ΡΠ΅Π³Π°ΡΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠΉ, Π° Π½Π΅ ΠΈΡ
ΡΡΠΌΠΌΠ°. ΠΠΎΠ»Π΅Π΅ ΡΠΎΠ³ΠΎ, ΠΏΡΠΈ ΠΎΠ±ΠΎΠ±ΡΠ΅Π½ΠΈΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΡΡ Π½Π΅ ΠΊΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ, Π° ΠΈΡ
Π°Π³ΡΠ΅Π³Π°ΡΠΈΠΎΠ½Π½ΡΠ΅ ΠΎΠ±ΠΎΠ±ΡΠ΅Π½ΠΈΡ. ΠΠ±ΠΎΠ±ΡΠ΅Π½Π½ΡΠ΅ ΠΌΠ΅Π΄ΠΈΠ°Π½Ρ Π€ΡΠ΅ΡΠ΅ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΡΡ Π΄Π»Ρ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ Π½ΠΎΠ²ΡΡ
ΠΌΠ΅Π΄ΠΈΠ°Π½Π½ΡΡ
MIMO-ΡΠΈΠ»ΡΡΡΠΎΠ²
- β¦