中文
相关论文

相关论文: SS433: a massive X-ray binary at advanced evolutio…

200 篇论文

The analysis of hard X-ray INTEGRAL observations (2003-2008) of superaccreting galactic microquasar SS433 at precessional phases of the source with the maximum disk opening angle is carried out. It is found that the shape and width of the…

高能天体物理现象 · 物理学 2009-04-23 A. M. Cherepashchuk , R. A. Sunyaev , K. A. Postnov , E. A. Antokhina , S. V. Molkov

The analysis of INTEGRAL observations (2003-2008) of superaccreting galactic microquasar SS433 at precessional phases with the maximum disk opening angle is carried out. The shape and width of the primary X-ray eclipse is found to be…

天体物理学 · 物理学 2015-05-13 A. Cherepashchuk , K. Postnov , E. Antokhina , S. Molkov

A huge optical luminosity of the supercritical accretion disc and powerful stellar wind in the high-mass X-ray binary SS433 make it difficult to reliably estimate the mass ratio of the binary components from spectroscopic observations. We…

高能天体物理现象 · 物理学 2018-07-20 Anatol Cherepashchuk , Kosnatntin Postnov , Alexandre Belinski

Based on multiyear INTEGRAL observations of SS433, a composite IBIS/ISGRI 18-60 keV orbital light curve is constructed around zero precessional phase $\psi_{pr}= 0$. It shows a peculiar shape characterized by a significant excess near the…

高能天体物理现象 · 物理学 2012-12-17 A. Cherepashchuk , R. Sunyaev , S. Molkov , E. Antokhina , K. Postnov , A. Bogomazov

Results of simultaneous INTEGRAL and optical observations of galactic microquasar SS433 in May 2003 and INTEGRAL/RXTE observations in March 2004 are presented. Persistent precessional variability with a maximum to minimum uneclipsed hard…

Results of simultaneous {\it INTEGRAL} and optical observations of galactic microquasar SS433 in May 2003 are presented. The analysis of the X-ray and optical eclipse duration and hard X-ray spectra obtained by {\it INTEGRAL} together with…

Based on multiyear INTEGRAL observations of SS433 in 2003-2011, a composite IBIS/ISGRI 18-60 keV orbital light curve is constructed around zero precessional phases psi_{pr}= 0 at the maximim accretion disk opening angle. It shows a peculiar…

高能天体物理现象 · 物理学 2013-10-24 A. M. Cherepashchuk , R. A. Sunyaev , S. V. Molkov , E. A. Antokhina , K. A. Postnov , A. I. Bogomazov

Despite decades of observations across all wavebands and dedicated theoretical modelling, the SS 433 system still poses many questions, especially in the high-energy range. SS 433 is a high-mass X-ray binary at a distance of $\sim 5.5$ kpc,…

高能天体物理现象 · 物理学 2017-08-17 Payel Kar , The VERITAS Collaboration

We present a study of the mass transfer and wind outflows of SS433, focusing on the so-called stationary lines based on archival high and low resolution optical spectra, and new optical multifilter polarimetry and low resolution optical…

太阳与恒星天体物理 · 物理学 2020-08-26 P. Picchi , S. N. Shore , E. J. Harvey , A. Berdyugin

SS433 is an extraordinary X-ray binary which is ejecting bipolar jets with $26\%$ of the speed of light. Associated with the supernova-like shell W50, SS433 is also probably one of the youngest X-ray binaries with an age of $\lesssim 10^5$…

高能天体物理现象 · 物理学 2020-06-17 Qin Han , Xiang-Dong Li

We present results from new optical and UV spectroscopy of the unusual binary system SS 433, and we discuss the relationship of the particular spectral components we observe to the properties of the binary. (1) The continuum spectrum which…

天体物理学 · 物理学 2009-11-07 D. R. Gies , M. V. McSwain , R. L. Riddle , Z. Wang , P. J. Wiita , D. W. Wingert

The so-called "stationary" H-alpha line of SS433 is shown to consist of three components. A broad component is identified as emitted in that wind from the accretion disc which grows in speed with elevation above the plane of the disc. There…

天体物理学 · 物理学 2008-03-06 Katherine Blundell , Michael Bowler , Linda Schmidtobreick

We present results of long-term photometric monitoring of SS433 which proves a secular evolutionary increase of the orbital period of SS433 at a rate of $(1.14\pm 0.25)\times 10^{-7}$ s~s$^{-1}$. Using a physical model of non-conservative…

高能天体物理现象 · 物理学 2023-06-07 Anatol Cherepashchuk , Alexander Belinski , Alexander Dodin , Konstantin Postnov

We have analyzed the observed radial-velocity curve for the X-ray binary M33 X-7 in a Roche model. We have analyzed the dependence between the component masses and the degree of filling of the optical star's Roche lobe to obtain the ratio…

太阳与恒星天体物理 · 物理学 2010-11-02 M. K. Abubekerov , E. A. Antokhina , A. I. Bogomazov , A. M. Cherepashchuk

We present an analysis of the X-ray spectral properties observed from black hole candidate (BHC) binary SS~433. We have analyzed RXTE data from this source, coordinated with Green Bank Interferometer/RATAN-600. We show that SS~433 undergoes…

星系天体物理 · 物理学 2015-05-19 Elena Seifina , Lev Titarchuk

We present our analysis of the extensive monitoring of SS433 by the RXTE observatory collected over the period 1996-2005. The difference between energy spectra taken at different precessional and orbital phases shows the presence of strong…

天体物理学 · 物理学 2008-11-26 E. Filippova , M. Revnivtsev , S. Fabrika , K. Postnov , E. Seifina

The unique microquasar SS433 is a massive X-ray binary system at an advanced evolutionary stage. The optical star overflows its Roche lobe and transfers mass at a very high rate onto a black hole surrounded by a supercritical accretion disk…

高能天体物理现象 · 物理学 2025-11-11 A. M. Cherepashchuk , A. V. Dodin , K. A. Postnov

We revisit the determination of binary mass ratio in the Galactic microquasar SS433 based on recent GRAVITY VLTI measurements of mass and angular momentum outflow through a circumbinary disc. The new observations combined with the constancy…

高能天体物理现象 · 物理学 2019-03-04 A. M. Cherepashchuk , K. A. Postnov , A. A. Belinski

Hard X-ray INT observations of SS 433 carried out during 2003-2005 years with an analysis of precessional and orbital variability is presented. The width of X-ray eclipse in the 25-50 keV range at the precessional phase $\psi=0.1$…

We present analysis of extensive monitoring of SS433 by the RXTE observatory collected over the period 1996-2005. The difference between energy spectra taken at different precessional and orbital phases shows the presence of a strong…

天体物理学 · 物理学 2007-05-23 E. Filippova , M. Revnivtsev , S. Fabrika , K. Postnov , E. Seifina
‹ 上一页 1 2 3 10 下一页 ›