88 citations · 675 across the 17 of their papers we have counts for
16 papers
Searching for redshifted 2.2 MeV neutron-capture lines from accreting neutron stars: Theoretical X-ray luminosity requirements and INTEGRAL/SPI observations
L. Ducci, A. Santangelo, S. Tsygankov +2
Accreting neutron stars (NSs) are expected to emit a redshifted 2.2 MeV line due to the capture of neutrons produced through the spallation processes of He and heavier ions in…
INTEGRAL/IBIS 17-yr hard X-ray all-sky survey
Roman Krivonos, Sergey Sazonov, Ekaterina Kuznetsova +3
The International Gamma-Ray Astrophysics Laboratory (INTEGRAL), launched in 2002, continues its successful work in observing the sky at energies E>20 keV. The legacy of the mission…
15 years of Galactic surveys and hard X-ray Background measurements
Roman A. Krivonos, Antony J. Bird, Eugene M. Churazov +15
The INTEGRAL hard X-ray surveys have proven to be of fundamental importance. INTEGRAL has mapped the Galactic plane with its large field of view and excellent sensitivity. Such har…
An upper limit on nickel overabundance in the supercritical accretion disk wind of SS 433 from X-ray spectroscopy
P. Medvedev, I. Khabibullin, S. Sazonov +2
We take advantage of a long (with a total exposure time of 120 ks) X-ray observation of the unique Galactic microquasar SS 433, carried out with the XMM-Newton space observatory, t…
New hard X-ray sources discovered in the ongoing INTEGRAL Galactic Plane survey after 14 years of observations
Roman Krivonos, Sergey Tsygankov, Ilya Mereminskiy +3
The International Gamma-Ray Astrophysics Laboratory (INTEGRAL) continues to successfully work in orbit after its launch in 2002. The mission provides the deepest ever survey of har…
Galactic survey of 44Ti sources with the IBIS telescope onboard INTEGRAL
Sergey S. Tsygankov, Roman A. Krivonos, Alexander A. Lutovinov +4
We report the results of the deepest Galactic Plane (|b| < 17.5 deg) survey in the 67.9 and 78.4 keV nuclear de-excitation lines of titanium-44 (44Ti) performed using the data acqu…
INTEGRAL 11-year hard X-ray survey above 100 keV
Roman A. Krivonos, Sergey S. Tsygankov, Alexander A. Lutovinov +3
We present results of all sky survey, performed with data acquired by the IBIS telescope onboard the INTEGRAL observatory over eleven years of operation, at energies above 100 keV.…
Identification of Four X-ray Sources from the INTEGRAL and Swift Catalogs
A. A. Lutovinov, A. I. Mironov, R. A. Burenin +5
Four hard X-ray sources from the INTEGRAL and Swift catalogs have been identified. X-ray and optical spectra have been obtained for each of the objects being studied by using data…
Population of persistent high mass X-ray binaries in the Milky Way
A. A. Lutovinov, M. G. Revnivtsev, S. S. Tsygankov +1
We present results of the study of persistent high mass X-ray binaries (HMXBs) in the Milky Way, obtained from the deep INTEGRAL Galactic plane survey. This survey provides us a ne…
Broadband Observations of the Be/X-ray Binary Pulsar RX J0440.9+4431: Discovery of a Cyclotron Absorption Line
S. Tsygankov, R. Krivonos, A. Lutovinov
We report the results of an analysis of data obtained with the INTEGRAL, Swift and RXTE observatories during the 2010 April and September outbursts of the X-ray pulsar RX J0440.9+4…
INTEGRAL constraints on the Galactic hard X-ray background from the Milky Way anticenter
R. Krivonos, S. Tsygankov, M. Revnivtsev +3
We present results of a study of the Galactic ridge X-ray emission (GRXE) in hard X-rays with the IBIS telescope on board INTEGRAL in the region near the Galactic Anticenter (GA) a…
Positron annihilation spectrum from the Galactic Centre region observed by SPI/INTEGRAL, revisited: annihilation in a cooling ISM?
E. Churazov, S. Sazonov, S. Tsygankov +2
We analyse SPI/INTEGRAL data on the 511 keV line from the Galactic Centre, accumulated over ~6 years of observations. We decompose the X-ray and soft gamma-ray emission of the cent…
INTEGRAL/IBIS 7-year All-Sky Hard X-Ray Survey. Part II: Catalog of Sources
R. Krivonos, S. Tsygankov, M. Revnivtsev +3
This paper is the second in a series devoted to the hard X-ray (17-60 keV) whole sky survey performed by the INTEGRAL observatory over seven years. Here we present a catalog of det…
INTEGRAL/IBIS 7-year All-Sky Hard X-Ray Survey. Part I: Image Reconstruction
R. Krivonos, M. Revnivtsev, S. Tsygankov +5
This paper is the first in a series devoted to the hard X-ray whole sky survey performed by the INTEGRAL observatory over seven years. Here we present an improved method for image…
Iron line emission from X-ray pulsars: physical conditions and geometry of the system
S. Tsygankov, A. Lutovinov
We present here the preliminary results of the study of the fluorescent iron line emission from X-ray pulsars with Be companions. We propose to use properties of this emission to i…
Quenching of the accretion disk strong aperiodic variability at the magnetospheric boundary
M. Revnivtsev, E. Churazov, K. Postnov +1
We study power density spectra (PDS) of X-ray flux variability in binary systems where the accretion flow is truncated by the magnetosphere. PDS of accreting X-ray pulsars where th…