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Related papers: The Eastern Filament of W50

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The radio nebula W50 is a unique object interacting with the jets of the microquasar SS433. The SS433/W50 system is a good target for investigating the energy of cosmic-ray particles accelerated by galactic jets. We report observations of…

High Energy Astrophysical Phenomena · Physics 2021-04-14 Haruka Sakemi , Rikuto Omae , Takumi Ohmura , Mami Machida

Four mosaics of deep, continuum-subtracted, CCD images have been obtained over the extensive galactic radio continuum shell, W 50, which surrounds the remarkable stellar system SS 433. Two of these mosaics in the Halpha+[N II] and [O III]…

The W50/SS433 system is an unusual Galactic outflow-driven object of debatable origin. We have used the Australia Telescope Compact Array (ATCA) to observe a new 198 pointing mosaic, covering $3^\circ \times 2^\circ$, and present the…

Astrophysics of Galaxies · Physics 2017-03-14 J. S. Farnes , B. M. Gaensler , C. Purcell , X. H. Sun , M. Haverkorn , E. Lenc , S. P. O'Sullivan , T. Akahori

The Galactic microquasar SS 433 and the radio nebula W50 surrounding it present a prototypical example of a hyper-Eddington binary system shaping its ambient interstellar medium via energetic outflows. In this paper, we present X-ray…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Rashid Sunyaev , Ildar Khabibullin , Eugene Churazov , Marat Gilfanov , Pavel Medvedev , Sergey Sazonov

We report on observations of several optical emission lines toward a variety of newly revealed faint, large-scale Halpha-emitting regions in the Galaxy. The lines include [NII] 6583, [NII] 5755, [SII] 6716, [OIII] 5007, and HeI 5876…

Astrophysics · Physics 2011-02-11 G. J. Madsen , R. J. Reynolds , L. M. Haffner

The microquasar SS433 features the most energetic jets known in our Galaxy. A large fraction of the jet kinetic power is delivered to the surrounding W50 nebula at the jet termination shock, from which high-energy emission and cosmic-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-30 Pol Bordas , Ruizhi Yang , Ervin Kafexhiu , Felix Aharonian

We report on observations of several optical emission lines toward a variety of newly revealed faint, large-scale H-alpha-emitting structures in the warm ionized medium (WIM) of the Galaxy. The lines include [N II] 6583, [N II] 5755, [S II]…

Astrophysics · Physics 2007-05-23 G. J. Madsen

SS433 is a jet emitting X-ray binary surrounded by the W50 radio nebula. The SS433/W50 system is an excellent laboratory for studying relativistic jet interaction with the surrounding interstellar medium. In this context, part of the W50…

Astrophysics · Physics 2007-05-23 Yael Fuchs

SS433 is an X-ray binary emitting persistent relativistic double sided jets that expand into the surrounding W50 radio nebula. The SS433/W50 system is then an excellent laboratory for studying relativistic jet interaction with the…

Astrophysics · Physics 2007-05-23 Yael Fuchs

Diffuse X-ray emission of the radio nebula W50 along the line of the of jets of the microquasar SS433 has a non-thermal power law component. This could be the inverse-Compton scattered emission of the SS433 accretion disk funnel, which is…

Solar and Stellar Astrophysics · Physics 2013-06-20 A. A. Panferov , A. A. Kabanov

We present the first CCD flux-calibrated images of the snr G 82.2+5.3 in major optical emission lines. The [O III] 5007 line provides the first direct evidence of optical emission originating from G 82.2+5.3. Filamentary emission is…

Astrophysics · Physics 2009-11-10 F. Mavromatakis , B. Aschenbach , P. Boumis , J. Papamastorakis

We present a broadband X-ray study of W50 (`the Manatee nebula'), the complex region powered by the microquasar SS 433, that provides a test-bed for several important astrophysical processes. The W50 nebula, a Galactic PeVatron candidate,…

We present the results of a kinematical study of the W50 nebula using high resolution radio observations from the Very Large Array (VLA) spanning a 12-year period, sampled in 1984, 1993 and 1996. We conduct a careful analysis of the proper…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Paul T. Goodall , Katherine M. Blundell , S. Jocelyn Bell Burnell

We analyze 10 years of Fermi-LAT data towards the SS433/W50 region. With the latest source catalog and diffuse background models, the gamma-ray excess from SS433/W50 is detected with a significance of 6{\sigma} in the photon energy range of…

High Energy Astrophysical Phenomena · Physics 2019-06-26 Xiao-Na Sun , Rui-Zhi Yang , Bing Liu , Shao-Qiang Xi , Xiang-Yu Wang

We present the results of a narrow-band survey of QSO fields at redshifts that place the [OIII](5007) emission line in the 1% 2.16micron filter. We have observed 3 square arcminutes and detected one emission line candidate object in the…

Astrophysics · Physics 2009-10-31 Harry I. Teplitz , Matthew A. Malkan , Ian S. McLean

SS 433, located at the center of the W 50 radio nebula, is a binary system that ejects jets oriented east-west with precessional motion. X-ray lobes, containing compact "knots" labeled as head (e1), lenticular (e2), and ring (e3) in the…

High Energy Astrophysical Phenomena · Physics 2025-05-19 Kazuho Kayama , Takaaki Tanaka , Hiroyuki Uchida , Takeshi Go Tsuru , Yoshiyuki Inoue , Dmitry Khangulyan , Naomi Tsuji , Hiroaki Yamamoto

We present results of Hubble Space Telescope observations of the radio galaxy 3C 244.1. The broadband F702W (R) and F555W (V) images (WFPC2/PC) show an elliptical galaxy and gaseous filaments and blobs surrounding it. In the narrow-band…

Astrophysics · Physics 2009-11-07 Carlos Feinstein , F. Duccio Macchetto , Andre R. Martel , William B. Sparks

We present high resolution radio continuum maps of the Galactic nebula Simeis 57 (= HS 191 = G 80.3+4.7) made with the WSRT and the DRAObservatory at frequencies of 609, 1412 and 1420 MHz. At optical and at radio wavelengths, the nebula has…

Astrophysics · Physics 2014-10-13 F. P. Israel , M. Kloppenburg , P. E. Dewdney , J. Bally

With new high-resolution CO and HI data, we revisited the large-scale interstellar medium (ISM) environment toward the SS 433/W50 system. We find that two interesting molecular cloud (MC) concentrations, G39.315-1.155 and G40.331-4.302, are…

Astrophysics of Galaxies · Physics 2019-01-08 Yang Su , Xin Zhou , Ji Yang , Yang Chen , Xuepeng Chen , Shaobo Zhang

The nearby dwarf starburst galaxy NGC 5253 hosts a deeply embedded radio-infrared supernebula excited by thousands of O stars. We have observed this source in the 10.5{\mu}m line of S+3 at 3.8 kms-1 spectral and 1.4" spatial resolution,…

Astrophysics of Galaxies · Physics 2015-06-05 Sara C. Beck , John H. Lacy , Jean L. Turner , Andrew Kruger , Matt Richter , Lucian P. Crosthwaite
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