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相关论文: SS 433: O I lines and the circumbinary disk

200 篇论文

Circumbinary disks have been hypothesized to exist around a number of binary post-AGB stars. Although most of the circumbinary disks have been inferred through the near IR excess, a few of them are strong emitters of molecular emission.…

天体物理学 · 物理学 2011-02-11 Dinh-V-Trung

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

The Galactic microquasar SS 433 is a member of a binary system but there is a lack of data on the orbital velocities of the components. The emission lines of the C II doublet at 7231 and 7236 Angstrom have been tracked nightly over two…

太阳与恒星天体物理 · 物理学 2020-09-02 M. G. Bowler

We report the discovery of circularly polarised radio emission from the radio-jet X-ray binary SS 433 with the Australia Telescope Compact Array. The flux density spectrum of the circular polarization, clearly detected at four frequencies…

天体物理学 · 物理学 2009-10-31 Robert Fender , David Rayner , Ray Norris , R. J. Sault , Guy Pooley

The first complete far-infrared spectrum (43-197um) of the Seyfert 2 galaxy NGC 1068 as observed with the LWS onboard ISO is reported. In addition to the expected ionic fine structure emission lines, the OH rotational lines at 79, 119 and…

Variable non-thermal radio emission from Galactic X-ray binaries is a trace of relativistic jets, created near accretion disks. The spectral characteristics of a lot of radio flares in the X-ray binaries with jets (RJXB) is discussed in…

天体物理学 · 物理学 2009-10-31 S. A. Trushkin

Narrow passband optical images of the large Galactic supernova remnant G179.0+2.6 reveal a faint but nearly complete emission shell dominated by strong [O III] 4959,5007 A line emission. The remnant's optical emission, which consists of…

高能天体物理现象 · 物理学 2018-05-02 Thomas How , Robert Fesen , Jack Neustadt , Christine Black , Nicolas Outters

We present results from a short series of blue, moderate resolution spectra of the microquasar binary, SS 433. The observations were made at a time optimized to find the spectrum of the donor star, i.e., when the donor was in the foreground…

天体物理学 · 物理学 2009-11-07 D. R. Gies , W. Huang , M. V. McSwain

We fit Chandra HETGS data obtained for the unusual X-ray binary SS 433. While line strengths and continuum levels hardly change, the jet Doppler shifts show aperiodic variations that probably result from shocks in interactions with the…

B[e] supergiants have unusual circumstellar environments which may include thin, concentric rings displaying atomic line emission. GG Carinae is a B[e] supergiant binary which exhibits such a geometry in its circumbinary environment. We…

太阳与恒星天体物理 · 物理学 2021-10-25 Augustus Porter , Katherine Blundell , Steven Lee

The Seyfert 1 galaxy NGC 7469 possesses a prominent nuclear starburst ring and a luminous active galactic nucleus (AGN). Evidence of an outflow in the innermost nuclear region has been found in previous works. We detect the ionized gas…

星系天体物理 · 物理学 2022-07-20 Xiaoyu Xu , Junfeng Wang

We identify optical emission-line features 700" (12 kpc) southwest of the nucleus of Centaurus A, roughly opposite the radio jet and well-known optical emission filaments associated with the northern radio structure. These regions are…

星系天体物理 · 物理学 2019-01-30 William C. Keel , Julie K. Banfield , Anne Medling , Susan G. Neff

An object discovered during an infrared survey of the field near the quasar B2 0149+33 has an emission line at 2.25$\mu$m that we interpret as H$\alpha$ at a redshift of 2.43. The K-band image shows two compact components 10 kpc apart…

天体物理学 · 物理学 2009-10-30 S. V. W. Beckwith , D. Thompson , F. Mannucci , S. G. Djorgovski

The occurrence of new FU Orionis-like objects is fundamental to understand the outburst mechanism in young stars and their role in star formation and disk evolution. Our work is aimed at investigating the properties of the recent outburst…

天体物理学 · 物理学 2009-11-13 D. Fedele , M. E. van den Ancker , M. G. Petr-Gotzens , P. Rafanelli

The SS433 objects is a well-known source of relativistic jets, which are formed in supercritical accretion disk. It is very probable that the disk has polar channels and their radiation is collimated (the photocones). The face-on SS433…

天体物理学 · 物理学 2007-05-23 S. Fabrika , A. Mescheryakov

We present observations of the SS 433 jets using the Chandra High Energy Transmission Grating Spectrometer with contemporaneous optical and VLBA observations. The X-ray and optical emission line regions are found to be related but not…

We present integral field spectroscopy of a small sample of radio-loud quasars at intermediate redshift (0.26<z<0.60), most of which are associated with large radio sources. All have oxygen line emission extended over tens of kiloparcsecs,…

天体物理学 · 物理学 2009-10-31 C. S. Crawford , C. Vanderriest

We have obtained ALMA Band 7 observations of the FU Ori outburst system at 0.6"x0.5" resolution to measure the link between the inner disk instability and the outer disk through sub-mm continuum and molecular line observations. Our…

太阳与恒星天体物理 · 物理学 2015-10-28 A. S. Hales , S. A. Corder , W. R. D. Dent , S. M. Andrews , J. A. Eisner , L. A. Cieza

In order to identify the dominant nuclear outflow mechanisms in Active Galactic Nuclei, we have undertaken deep, high resolution observations of two compact radio sources (PKS 1549-79 and PKS 1345+12) with the Advanced Camera for Surveys…