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相关论文: The Equatorial Outflow of SS433

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We summarize the results of VLBA and global VLBI observations of SS433 between 1995 and 2000. With these observations we resolve the inner jet of the source and identify an absorption region (~25 AU), the "central radio gap". The radio gap…

天体物理学 · 物理学 2007-05-23 Z. Paragi , I. Fejes , R. C. Vermeulen , R. T. Schilizzi , R. E. Spencer , A. M. Stirling

The microquasar SS 433 is the only known steady supercritical accretor in the Galaxy. It is well-known for its relativistic baryonic jets, but the system also drives equatorial outflows. These have been routinely detected in radio images,…

太阳与恒星天体物理 · 物理学 2025-06-04 Idel Waisberg , Jason Dexter , Pierre Olivier-Petrucci , Guillaume Dubus , Karine Perraut

We present multi-frequency VLBA+VLA observations of SS433 at 1.6, 5 and 15 GHz. These observations provide the highest angular resolution radio spectral index maps ever made for this object. Motion of the components of SS433 during the…

天体物理学 · 物理学 2011-05-23 Z. Paragi , R. C. Vermeulen , I. Fejes , R. T. Schilizzi , R. E. Spencer , A. M. Stirling

We have imaged the X-ray binary SS433 with unprecedented Fourier-plane coverage at 6cm using simultaneously the VLBA, MERLIN, and the VLA, and also at 20cm with the VLBA. At both wavelengths we have securely detected smooth, low-surface…

天体物理学 · 物理学 2009-11-07 Katherine Blundell , Amy Mioduszewski , Tom Muxlow , Philipp Podsiadlowski , Michael Rupen

We present unique radio observations of SS433, using MERLIN, the VLBA, and the VLA, which allow us to, for the first time, properly image and derive a meaningful spectral index for the `ruff' of equatorial emission which surrounds SS433's…

The Galactic microquasar SS\,433 is very luminous and launches oppositely-directed jets of cool hydrogen at a quarter of the speed of light. Observations of emission lines from the circumbinary disk imply a system mass exceeding 40 $…

星系天体物理 · 物理学 2010-09-14 M. G. Bowler

Context. SS 433 is historically a well-known microquasar in the Galaxy that has been deeply studied during the four decades elapsed since its discovery. However, observations at very high radio frequencies with good angular resolution are…

We report our analysis of the data obtained with the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope (Fermi) for the SS 433/W50 region. The total data length is ten years. Different from the previous results reported…

高能天体物理现象 · 物理学 2021-06-03 Yi Xing , Zhongxiang Wang , Xiao Zhang , Yang Chen , V. Jithesh

In this paper we present our study of the gamma-ray emission from the microquasar SS433. Integrating over 9 years of Fermi-LAT \textsc{pass8} data, we detect SS433 with a significance of ~13$\sigma$ in the 200 to 500 MeV photon energy…

高能天体物理现象 · 物理学 2019-03-13 Kajwan Rasul , Paula M. Chadwick , Jamie A. Graham , Anthony M. Brown

We present observations of SS 433 using the Chandra High Energy Transmission Grating Spectrometer. Many emission lines of highly ionized elements are detected with the relativistic blue and red Doppler shifts. The lines are measurably…

天体物理学 · 物理学 2009-11-07 Herman L. Marshall , Claude R. Canizares , Norbert S. Schulz

SS433 is a Galactic microquasar with powerful outflows (double jet, accretion disk and winds) with well known orbital, precessional and nutational period. In this work we characterise different outflow parameters throughout the precessional…

Microquasars occasionally exhibit massive jet ejections which are distinct from the continuous or quasi-continuous weak jet ejections. Because those massive jet ejections are rare and short events, they have hardly been observed in X-ray so…

天体物理学 · 物理学 2009-11-13 T. Kotani , S. A. Trushkin , R. Valiullin , K. Kinugasa , S. Safi-Harb , N. Kawai , M. Namiki

ABRIDGED We present new results on the variations in speed and direction of the jet bolides in the Galactic microquasar SS433, from high resolution spectra, taken with the ESO 3.6-m New Technology Telescope almost nightly over 0.4 of a…

天体物理学 · 物理学 2009-11-13 Katherine Blundell , Michael Bowler , Linda Schmidtobreick

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

SS433 is a Galactic microquasar with powerful jets, where very-high-energy particles are produced. We study particle acceleration in the jets of SS433 in the light of the recent multi-wavelength data from radio to TeV gamma ray. We first…

高能天体物理现象 · 物理学 2020-02-12 Takahiro Sudoh , Yoshiyuki Inoue , Dmitry Khangulyan

The Galactic microquasar SS433 occasionally exhibits a major flare when the intensity of its emission increases significantly and rapidly. We present an analysis of high-resolution, almost-nightly optical spectra obtained before, during and…

星系天体物理 · 物理学 2015-05-27 Katherine Blundell , Linda Schmidtobreick , Sergei Trushkin

Some stationary lines in the emission spectra of SS 433 are eclipsed, but most are not. Lines attributed to a circumbinary disk are not eclipsed, but double in relative intensity during primary eclipse. A C II doublet is eclipsed and…

太阳与恒星天体物理 · 物理学 2015-10-14 M. G. Bowler

We present an analysis of 17 years of Fermi-LAT observations of the microquasar SS~433. We detect four GeV sources in the region: a newly identified source, PS J1910+0550, located outside W50; the previously reported source J1913+0512; and…

高能天体物理现象 · 物理学 2026-05-15 Qiwang Sun , Dmitry Khangulyan , Jiren Liu , Siming Liu

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
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