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1821. http://hea.iki.rssi.ru/integral06/papers/I32_Kalemci01-13Feb07_15:37:29_bandw.pdf
... Using multipledetector coincidence events in the 100-350 keV energy band, our analysis yields a polarization fraction from this GRB of 98 Б 33%. ... For a source count rate of S , and fractional polarization of s , the expected azimuthal scattering angle () distribution is S dS = [1 - Q s cos 2( - )]. d 2 (1) 2.4. ... Simulated azimuthal scattering angle distribution of 100% polarized photons at 200 keV originating at the GRB position. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/I32_Kalemci01-13Feb07_15:37:29_bandw.pdf -- 127.0 Кб -- 13.02.2007
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1822. http://hea.iki.rssi.ru/integral06/papers/E34_Masetti01-09Feb07_17:09:40.pdf
NEW RESULTS ON OPTICAL IDENTIFICATIONS OF INTEGRAL SOURCES N. Masetti1 , L. Morelli2 , E. Palazzi1 , G. Galaz2 , L. Bassani1 , A. Bazzano3 , A.J. Bird4 , A.J. Dean4 , G.L. Israel5 , R. Landi1 ... Italy 4 5 University of Southampton, Southampton, United Kingdom 6 INAF-Osservatorio Astronomico di Roma, Monteporzio Catone, Italy INTEGRAL Science Data Centre, Versoix, Switzerland ABSTRACT Optical spectroscopic identification of the nature of 21 unidentified southern hard Xґ ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/E34_Masetti01-09Feb07_17:09:40.pdf -- 57.6 Кб -- 09.02.2007
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1823. http://hea.iki.rssi.ru/integral06/papers/D37_Tsang01-08Feb07_19:28:05.pdf
... Kellermann and Pauliny-Toth [5] showed that the maximum brightness temperature that a source can sustain is limited by the cooling due to inverse Compton scattering in the Thomson regime, which rises rapidly when the source exceeds TB > 3 в 1011 K. As pointed out by Crusius-Waetzel [6], brightness temperatures higher than 1012 K can be produced by monoenergetic electron, since the GHz photons can emerge from the source without being absorbed by low energy electrons. ... High energy astrophysics. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/D37_Tsang01-08Feb07_19:28:05.pdf -- 131.8 Кб -- 08.02.2007
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1824. http://hea.iki.rssi.ru/integral06/papers/G07_Falanga01-08Feb07_17:04:22.pdf
... Out of seven recently discovered accretion-powered pulsars (one discovered by INTEGRAL), three were observed with the INTEGRAL satellite up to 300 keV. ... They are also a good laboratory in which to study the source spectra, pulse profile, and phase shift between X-ray pulses in different energy ranges which give additional information of the X-ray production processes and emission environment. ... This allowed us to study the pulsed fraction up to this high energy. ... X-RAY SPECTRA Figure 2. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/G07_Falanga01-08Feb07_17:04:22.pdf -- 977.6 Кб -- 08.02.2007
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1825. http://hea.iki.rssi.ru/integral06/papers/G41_Schoenherr01-07Feb07_16:54:04.pdf
... Key words: X-rays: stars; stars: neutron; magnetic fields; line: formation. в 1 1+z (n = 0, 1, 2, . ... Line profiles are shown for a continuum spectrum of the form of a power law with a high-energy exponential cutoff f (E ) = const. в E - в exp (-E / ) (XSPECs cutoffpl) and for different cutoff energies. fit (Fig. 4, bottom) was obtained for cylinder geometry, revealing a magnetic field strength of B = 2.95 в 1012 G, a viewing angle of ? = 0.76 and the plasma electron temperature of k Te = 3.4 keV....
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Ссылки http://hea.iki.rssi.ru/integral06/papers/G41_Schoenherr01-07Feb07_16:54:04.pdf -- 385.0 Кб -- 07.02.2007
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1826. http://hea.iki.rssi.ru/integral06/papers/I02_Gotz01-07Feb07_12:30:31.pdf
... The increase of its bursting activity eventually led to the December 2004 Giant Flare for which a possible soft gamma-ray (>80 keV) early afterglow has been detected with INTEGRAL. ... We will focus here on the SGR 1806-20 persistent emission and on the Giant Flare of December 2004. ... The Giant Flare of December 27 2004 A giant flare from SGR 1806-20 was discovered with the INTEGRAL gamma-ray observatory on 2004 December 27 [2], and detected with many other satellites (e.g. [40, 16, 45]). ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/I02_Gotz01-07Feb07_12:30:31.pdf -- 299.8 Кб -- 07.02.2007
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1827. http://hea.iki.rssi.ru/integral06/papers/E33_Munz01-07Feb07_12:30:06.pdf
SEARCH FOR WEAK AND TRANSIENT SOURCES IN INTEGRAL ARCHIVE Filip Munz1,2 , Jan Strobl1 , and Rene Hudec1,2 1 Astronomical institute, Academy of Sciences of Czech Republic, 251 65 Ondrejov 2 INTEGRAL Science Data Center, CH-1290 Versoix, Switzerland ABSTRACT Large field of view of INTEGRAL imaging instruments allows us to study many sources besides the nominal target. ... These mosaics contain 75 of our primary targets, and in addition 560 other CV sources. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/E33_Munz01-07Feb07_12:30:06.pdf -- 401.9 Кб -- 07.02.2007
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1828. http://hea.iki.rssi.ru/integral06/papers/H30_Terada01-07Feb07_06:25:26.pdf
... A trial to detect non-thermal emission from a best candidate among WDs, AE Aquarii, was performed with the hard X-ray detector (HXD) on-board the fifth Japaneses X-ray satellite, Suzaku. ... NSs data [25, 24]; WDs [39, 34, 35]) 2. ... In addition to the HXD, which covers 10ґ70 keV with PIN diodes and 40ґ 600 keV with Gd 2 SiO5 :Ce (GSO) scintillators [33, 22], it carries onboard the X-ray Imaging Spectrometer (XIS), operating at 0.2ґ12 keV [26, 23]. ... X-ray spectra of AE Aqrarii with HXD PIN...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/H30_Terada01-07Feb07_06:25:26.pdf -- 537.5 Кб -- 07.02.2007
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1829. http://hea.iki.rssi.ru/integral06/papers/F03_Cherepashchuk01-06Feb07_17:34:47.pdf
INTEGRAL OBSERVATIONS OF SS433: ANALYSIS OF PRECESSIONAL AND ORBITAL X-RAY PERIODICITIES A.M. Cherepashchuk1 , R.A. Sunyaev2 , E.V. Seifina3 , E.A. Antokhina3 , D.I. Kosenko3 , S.V. Molkov4 , N.I. Shakura5 , K.A. Postnov5 , A.N. Timokhin5 , and I.E. Panchenko5 Sternberg Astronomical Institute, Universitetsky pr. ... The width of X-ray eclipse in the 25 - 50 keV range at the precessional phase = 0.1 (accretion disk is open to observer) is higher than that in the Ginga 18.4 - 27.6 keV range. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/F03_Cherepashchuk01-06Feb07_17:34:47.pdf -- 424.7 Кб -- 06.02.2007
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1830. http://hea.iki.rssi.ru/integral06/papers/D40_Hartmann03-02Feb07_18:27:29.pdf
GRMHD SIMULATIONS OF JET FORMATION WITH RAISHIN Y. Mizuno1 , D. H. Hartmann2 , K.-I. Nishikawa3 , S. Koide4 , P. Hardee5 , and G. J. Fishman 1 3 6 National ... Flight Center, NSSTC, 320 Sparkman Drive, VP 62,Huntsville, AL 35805, USA ABSTRACT We have developed a new three dimensional general relativistic magnetohydrodynamic ( GRMHD ) code , RAISHIN, using a conservative, high-resolution shock capturing scheme ... The background corona is free-falling into the black hole (Bondi flow). ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/D40_Hartmann03-02Feb07_18:27:29.pdf -- 217.9 Кб -- 05.02.2007
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1831. http://hea.iki.rssi.ru/integral06/papers/G42_Klochkov01-05Feb07_15:40:11.pdf
... The cyclotron line in the X-ray spectrum is well observed and its position and shape, as well as its variability with time and phase of the 1.24 s pulsation are explored. X-ray pulse profiles for different energy bands are studied throughout the observation. ... Figure 3 shows the pulse phase of the decay as a function of time. ... PULSE-PHASE-RESOLVED SPECTROSCOPY In order to measure parameters of the cyclotron line as a function of the pulse phase we have split the data into four time intervals. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/G42_Klochkov01-05Feb07_15:40:11.pdf -- 173.0 Кб -- 05.02.2007
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1832. http://hea.iki.rssi.ru/integral06/papers/D39_Hartmann02-29Jan07_19:13:43.pdf
PARTICLE ACCELERATION , MAGNETIC FIELD GENERATION AND EMISSION FROM RELATIVISTIC JETS AND SUPERNOVA REMNANTS K.-I. Nishikawa1 , D. H. Hartmann2 , P. Hardee3 , C. Hededal4 , Y. Mizunno5 , and G. J. Fishman 1 6 ... and Technology Center, 320 Sparkman Drive, SD 50, Huntsville, AL 35805 ABSTRACT We performed numerical simulations of particle acceleration , magnetic field generation, and emission from shocks in order to understand the observed emission from ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/D39_Hartmann02-29Jan07_19:13:43.pdf -- 691.8 Кб -- 05.02.2007
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1833. http://hea.iki.rssi.ru/integral06/papers/D31_Bikmaev01-05Feb07_11:12:42.pdf
OPTICAL IDENTIFICATIONS OF INTEGRAL / RXTE SOURCES WITH 1.5-METER OPTICAL TELESCOPE RTT150 I.Bikmaev (1,2), M.Revnivtsev (3,4) , R.Burenin (3) R.Sunyaev (3,4) , N.Sakhibullin (1,2) (1) Kazan State University, Kremlevskaya Str., ... 1, D-85741, Garching bei MЭnchen , Germany (3 (4) ABSTRACT We present the first results of our project on optical identifications of INTEGRAL / RXTE hard X-ray sources by using scientific instrumentations of the 1.5meter joint Russian-Turkish optical telescope RTT150. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/D31_Bikmaev01-05Feb07_11:12:42.pdf -- 102.9 Кб -- 05.02.2007
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1834. http://hea.iki.rssi.ru/integral06/papers/E38_Shtykovskiy01-04Feb07_21:29:13_color.pdf
HIGH MASS X-RAY BINARIES AND RECENT STAR FORMATION HISTORY P. Shtykovskiy 1 1,2 and M. Gilfanov 2,1 Space Research Institute of Russian Academy of Sciences, Moscow, Russia 2 Max-Planck-Institut fur Astrophysik, Garching b. Munchen, Germany ? ? ABSTRACT Based on the XMM-Newton observations of Magellanic Clouds we consider the dependence of population of high mass X-ray binaries on the recent star formation history in the host galaxy. ... HMXBS AND RECENT STAR FORMATION IN MAGELLANIC CLOUDS 4.1. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/E38_Shtykovskiy01-04Feb07_21:29:13_color.pdf -- 50.2 Кб -- 04.02.2007
[ Текст ] Ссылки http://hea.iki.rssi.ru/integral06/papers/E38_Shtykovskiy01-04Feb07_21:30:21_bandw.pdf -- 50.2 Кб -- 04.02.2007
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[ Текст ] Ссылки http://hea.iki.rssi.ru/integral06/papers/E38_Shtykovskiy01-04Feb07_21:30:21_bandw.pdf -- 50.2 Кб -- 04.02.2007
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1835. http://hea.iki.rssi.ru/integral06/papers/A32_Gillard01-02Feb07_19:34:45.pdf
... Below the threshold, collisions take over and deflect e+ in their motion parallel to magnetic-field lines. ... On average, there is neither gain nor loss in energy and e+ diffuse over a distance = 2D along magnetic-field lines until they annihilate directly with bound e- ( is the e+ lifetime [7]). ... Average distance z travelled by e+ during the slowing-down period and spatial dispersion of the distribution z 2 1/2 in the warm ionized and hot ionized phases. n is the total gas density. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/A32_Gillard01-02Feb07_19:34:45.pdf -- 244.9 Кб -- 02.02.2007
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1836. http://hea.iki.rssi.ru/integral06/papers/A31_Sizun01-02Feb07_12:40:09.pdf
CONSTRAINTS ON THE INJECTION ENERGY OF POSITRONS IN THE GALACTIC CENTRE REGION Є P. Sizun1 , M. Casse1,2 , S. Schanne1 , and B. Cordier1 1 DAPNIA/Service d'Astrophysique, CEA Saclay ... d'Astrophysique de Paris, 98 bis Bd Arago, F-75014 Paris, France ABSTRACT Recent observations of the 511 keV positron-electron annihilation line in the Galactic centre region by the INTEGRAL/SPI spectrometer have stirred up new speculations about the origin of the large ... Radiation spectra Figure 5. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/A31_Sizun01-02Feb07_12:40:09.pdf -- 177.3 Кб -- 02.02.2007
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1837. http://hea.iki.rssi.ru/integral06/papers/C03_Krivonos01-02Feb07_00:18:48.pdf
HARD X-RAY EMISSION FROM THE GALACTIC RIDGE R. Krivonos 1 2 1,2 , M. Revnivtsev 1,2 , E. Churazov 1,2 , S. Sazonov 1,2 , S. Grebenev1, and R. Sunyaev 1,2 Space Research Institute, Russian Academy of Sciences, Profsoyuznaya 84/32, 117997 Moscow, Russia Max-Planck-Institute fur Astrophysik, Karl-Schwarzschild-Str. ... Extensive study of the IBIS/ISGRI detector background allowed us to construct a model that predicts the detector count rate with 1 - 2% accuracy in the energy band 17-60 keV. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/C03_Krivonos01-02Feb07_00:18:48.pdf -- 205.0 Кб -- 01.02.2007
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1838. http://hea.iki.rssi.ru/integral06/papers/B03_Wang01-31Jan07_17:59:26.pdf
... q z Wy p k Wp k U 1325 1330 1335 Energy (keV) 1340 {r ?z хp {r bz jp R (? R? ? qk p e Wr R и y и y t? {r vk вz гu в m ? ... z - 0.04 - 0.02 Intensity ( rel . units ) Intensity ( rel . units ) 0.00 0.02 0.04 - 0.04 - 0.02 Intensity ( rel . units ) Intensity ( rel . units ) 0.00 0.02 0.04 0.06 0.08 E=1173.34 (?0.58) FWHM = 2.76 (? 0.00 ) I=0.09 (? 0.04 ) 1165 E=1172.29 (?0.84) FWHM = 2.76 (? 0.00 ) I=0.09 (?0.05) 1165 1170 1175 Energy ( ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/B03_Wang01-31Jan07_17:59:26.pdf -- 175.6 Кб -- 31.01.2007
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1839. http://hea.iki.rssi.ru/integral06/papers/G05_Kreykenbohm01-30Jan07_19:21:43.pdf
... Of vital importance is the study of cyclotron lines as they provide the only direct link to the magnetic field of the pulsar. ... Key words: X-rays: stars ґ stars: magnetic fields ґ stars: flare ґ stars: pulsars: individual: 4U 1907+09 ґ stars: pulsars: individual: V0332+53 . ... Similar to other accreting neutron stars, the X-ray continuum of 4U 1907+09 can be described by a power-law spectrum with an exponential turnover at 13 keV [25]. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/G05_Kreykenbohm01-30Jan07_19:21:43.pdf -- 296.5 Кб -- 30.01.2007
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1840. http://hea.iki.rssi.ru/integral06/papers/B06_Iyudin01-29Jan07_13:07:48.pdf
... Here we present and discuss Vela Jr. properties revealed by these multiwavelength observations, and confront them with the SNR model expectations. ... Multiple observations of Vela Jr. in the radio band confirmed the shell-like structure and supported the identification of RX J0852.0-4622 as a SNR [8,11,12,13,14,16,46]. ... The X-ray emission line feature at 4.2 keV found by ASCA [48] in the NW rim spectrum of RX J0852.0-4622 was confirmed by XMM-Newton data (Fig. 4, 5, and [22]), and by Chandra [4]...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/B06_Iyudin01-29Jan07_13:07:48.pdf -- 1132.4 Кб -- 29.01.2007
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