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Related papers: New lambda6cm observations of the Cygnus Loop

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We report on the continuum and polarization observations of the Cygnus Loop supernova remnant (SNR) conducted by the Five-hundred-meter Aperture Spherical radio Telescope (FAST). FAST observations provide high angular resolution and high…

Astrophysics of Galaxies · Physics 2021-08-24 Xiaohui Sun , Meiniang Meng , Xuyang Gao , Wolfgang Reich , Peng Jiang , Di Li , Huirong Yan , Xianghua Li

We present total-intensity and polarized-intensity images of the Cygnus Loop supernova remnant (SNR) observed by the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The high angular-resolution and high-sensitivity images…

Astrophysics of Galaxies · Physics 2022-11-30 X. H. Sun , X. Y. Gao , W. Reich , P. Jiang , D. Li , H. Yan , X. H. Li

We present a new sensitive 2675 MHz radio continuum map of the Cygnus Loop, which is used in conjunction with 408 MHz, 863 MHz and 1420 MHz maps from both the Effelsberg 100-m telescope and the DRAO Synthesis Telescope for a spectral…

Astrophysics · Physics 2009-11-10 B. Uyaniker , W. Reich , A. Yar-Uyaniker , E. Fuerst

We present 1420 MHz (lambda=21cm) observations of polarized emission from an area of 117 degree square in the Galactic plane in Cygnus, covering 82 < l < 95, -3.5 < b < +5.5, a complex region where the line of sight is directed nearly along…

Astrophysics · Physics 2009-11-07 B. Uyaniker , T. L. Landecker , A. D. Gray , R. Kothes

We have observed 79 supernova remnants (SNRs) with the Urumqi 25m telescope at 6cm during the Sino-German 6cm polarization survey of the Galactic plane. We measured flux densities of SNRs at 6cm, some of which are the first ever measured or…

Astrophysics of Galaxies · Physics 2014-06-03 J. L. Han , X. Y. Gao , X. H. Sun , W. Reich , L. Xiao , P. Reich , J. W. Xu , W. B. Shi , E. Fuerst , R. Wielebinski

Observations of large supernova remnants (SNRs) at high frequencies are rare, but provide valuable information about their physical properties. The total intensity and polarization properties of 16 large SNRs in the Galactic plane were…

Astrophysics of Galaxies · Physics 2015-05-27 X. Y. Gao , J. L. Han , W. Reich , P. Reich , X. H. Sun , L. Xiao

We study the spectral and polarization properties of supernova remnants (SNRs) based on our 6cm survey data. The observations were taken from the Sino-German 6cm polarization survey of the Galactic plane. By using the integrated flux…

Astrophysics of Galaxies · Physics 2015-05-30 X. H. Sun , P. Reich , W. Reich , L. Xiao , X. Y. Gao , J. L. Han

The Cygnus Loop is among the brightest and best studied evolved Galactic supernova remnants. However, its distance has remained uncertain thus undermining quantitative understanding about many of its fundamental properties. Here we present…

High Energy Astrophysical Phenomena · Physics 2018-10-10 Robert A. Fesen , Kathryn E. Weil , Ignacio A. Cisneros , William P. Blair , John C. Raymond

The Galactic supernova remnant (SNR) Cygnus Loop emerges as an ideal laboratory for analyzing the different radiation mechanisms, as well as the particle acceleration mechanisms at different types of shocks. In order to determine radio…

High Energy Astrophysical Phenomena · Physics 2026-05-21 D. Urošević , M. Andjelić , M. D. Filipović , Z. J. Smeaton , E. Crawford , J. Raymond , D. Onić

We present a Hubble Space Telescope/WFPC2 narrow-band H-alpha image of a region on the northeastern limb of the Cygnus Loop supernova remnant. This location provides a detailed example of where the primary blast wave first encounters the…

Astrophysics · Physics 2009-10-31 William P. Blair , Ravi Sankrit , John C. Raymond , Knox S. Long

We conducted a comprehensive study on the shell structure of the Cygnus Loop using 41 observation data obtained by the Suzaku and the XMM-Newton satellites. To investigate the detailed plasma structure of the Cygnus Loop, we divided our…

High Energy Astrophysical Phenomena · Physics 2011-02-11 Hiroyuki Uchida , Hiroshi Tsunemi , Satoru Katsuda , Masashi Kimura , Hiroko Kosugi , Hiroaki Takahashi

We present results from deep, wideband, high spatial and spectral resolution observations of the nearby luminous radio galaxy Cygnus A with the Jansky Very Large Array. The high surface brightness of this source enables detailed…

Astrophysics of Galaxies · Physics 2023-08-10 M. Lerato Sebokolodi , Rick Perley , Jean Eilek , Chris Carilli , Oleg Smirnov , Robert Laing , Eric Greisen , Michael Wise

The Cygnus Loop is classified as a middle-aged supernova remnant (SNR) located below the Galactic equator (l=74, b=-8.6) and 770 pc away from us. Its large size and little confusion with Galactic emission makes it an ideal test ground for…

Astrophysics · Physics 2009-11-07 B. Uyaniker , W. Reich , A. Yar , R. Kothes , E. Fuerst

We have discovered scattered broad Balmer emission lines in the spectrum of Cygnus A, using the Keck II telescope. Broad H-alpha appears in polarized flux from components on either side of the nucleus, and to a lesser extent in the nucleus.…

Astrophysics · Physics 2009-10-30 P. M. Ogle , M. H. Cohen , J. S. Miller , H. D. Tran , R. A. E. Fosbury , R. W. Goodrich

Information of small-diameter sources is extracted from the Sino-German 6cm polarisation survey of the Galactic plane carried out with the Urumqi 25-m telescope. We performed two-dimensional elliptical Gaussian fits to the 6cm maps to…

Astrophysics of Galaxies · Physics 2015-06-17 W. Reich , X. H. Sun , P. Reich , X. Y. Gao , L. Xiao , J. L. Han

We analyze observations from the Chandra X-ray Observatory of the southeast knot of the Cygnus Loop supernova remnant. In this region, the blast wave propagates through an inhomogeneous environment. Extrinsic differences and subsequent…

Astrophysics · Physics 2009-11-10 N. A. Levenson , James R. Graham

We report on spectra of two positions in the XA region of the Cygnus Loop supernova remnant obtained with the InfraRed Spectrograph on the Spitzer Space Telescope. The spectra span the 10-35 micron wavelength range, which contains a number…

Astrophysics of Galaxies · Physics 2015-06-19 R. Sankrit , J. C. Raymond , M. Bautista , T. J. Gaetz , B. J. Williams , W. P. Blair , K. J. Borkowski , K. S. Long

The estimated brightness of the Cygnus loop supernova remnant (SNR) at 2720, 1420, 820, 408 and 34.5 MHz are presented. The observations of the continuum radio emission are used to calculate the mean brightness temperatures and surface…

Astrophysics of Galaxies · Physics 2011-03-14 V. Borka Jovanović , D. Urošević

With Hubble Space Telescope Wide-Field Planetary Camera 2 observations of the Cygnus Loop supernova remnant, we examine the interaction of an interstellar cloud with the blast wave on physical scales of 10^15 cm. The shock front is…

Astrophysics · Physics 2009-11-06 N. A. Levenson , James R. Graham

We present an unbiased spectroscopic study of the Galactic supernova remnant (SNR) Cygnus Loop using the Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) DR5. LAMOST features both a large field of view and a large…

High Energy Astrophysical Phenomena · Physics 2020-04-21 Ji Yeon Seok , Bon-Chul Koo , Gang Zhao , John C. Raymond
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