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Related papers: HST-STIS Observations of the Cygnus Loop: Spatial …

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The XA region of the Cygnus Loop is a complex zone of radiative and nonradiative shocks interacting with interstellar clouds. We combine five far ultraviolet spectral observations from the Hopkins Ultraviolet Telescope (HUT), a grid of 24…

Astrophysics · Physics 2007-05-23 Charles W. Danforth , William P. Blair , John C. Raymond

We present far ultraviolet spectra of a fast (~ 300 km/s) nonradiative shock in the Cygnus Loop supernova remnant. Our observations were performed with the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite, covering the wavelength…

Astrophysics · Physics 2009-10-31 Parviz Ghavamian , John C. Raymond , William P. Blair

Spatial and spectral profiles of O VI emission behind a shock wave on the northern edge of the Cygnus Loop were obtained with the FUSE satellite. The velocity width of the narrowest O VI profile places a tight constraint on the electron-ion…

Astrophysics · Physics 2009-11-07 John Raymond , Parviz Ghavamian , Ravi Sankrit , William Blair , Salvador Curiel

During the Astro-1 and Astro-2 Space Shuttle missions in 1990 and 1995, far ultraviolet (FUV) images of five 40' diameter fields around the rim of the Cygnus Loop supernova remnant were observed with the Ultraviolet Imaging Telescope (UIT).…

We present far-ultraviolet (FUV) spectral images, measured at C IV 1550, He II 1640, Si IV+O IV] 1400, and O III] 1664, of the entire Cygnus Loop, observed with the Spectroscopy of Plasma Evolution from Astrophysical Radiation (SPEAR)…

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

We present the C III {\lambda}977, O VI {\lambda}{\lambda}1032, 1038 and N IV] {\lambda}1486 emission line maps of the Cygnus Loop, obtained with the newly processed data of Spectroscopy of Plasma Evolution from Astrophysical Radiation…

Astrophysics of Galaxies · Physics 2014-03-05 Il-Joong Kim , Kwang-Il Seon , Yeo-Myeong Lim , Dae-Hee Lee , Wonyong Han , Kyoung-Wook Min , Jerry Edelstein

Radiative shock waves in the Cygnus Loop and other supernova remnants show different morphologies in [O III] and H{\alpha} emission. We use HST spectra and narrowband images to study the development of turbulence in the cooling region…

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 present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of a Balmer filament in the northeast region of the Cygnus Loop supernova remnant. The data consist of one spectrum obtained through the 30"x30" (LWRS) aperture and three…

Astrophysics · Physics 2009-11-07 Ravi Sankrit , William P. Blair

We present high-resolution long-slit spectroscopy of a Balmer-dominated shock in the northeastern limb of the Cygnus Loop with the Subaru high dispersion spectrograph. By setting the slit angle along the shock normal, we investigate…

We have carried out optical observations of the north-eastern part of the supernova remnant IC 443 using the CFHT imaging spectrograph SITELLE. The observations consist of three multispectral cubes covering an 11$^{\prime}$…

Astrophysics of Galaxies · Physics 2019-09-04 Alexandre Alarie , Laurent Drissen

We present the most sensitive ultraviolet observations of Supernova 1987A to date. Imaging spectroscopy from the Hubble Space Telescope-Cosmic Origins Spectrograph shows many narrow (dv \sim 300 km/s) emission lines from the circumstellar…

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

We present spatially resolved spectra observed with HST-STIS of the upper chromosphere and dust envelope of Alpha Orionis (M2 Iab). In the fall of 2002 a set of five high-resolution near-UV spectra was obtained by scanning at intensity…

Astrophysics · Physics 2007-05-23 A. Lobel , J. Aufdenberg , A. K. Dupree , R. L. Kurucz , R. P. Stefanik , G. Torres

We have obtained a contiguous set of long-slit spectra of a shock wave in the Cygnus Loop to investigate its structure, which is far from the morphology predicted by 1D models. Proper motions from Hubble Space Telescope images combined with…

We present a survey of NV and OVI (and where available CIV) in the Galactic halo, using data from the Far Ultraviolet Spectroscopic Explorer (FUSE) and the Hubble Space Telescope (HST) along 34 sightlines. These ions are usually produced in…

Astrophysics · Physics 2009-11-10 Remy Indebetouw , J. Michael Shull

We have analyzed GHRS data of eight CTTS and one WTTS. The GHRS data consists of spectral ranges 40 A wide centered on 1345, 1400, 1497, 1550, and 1900 A. These UV spectra show strong SiIV, and CIV emission, and large quantities of sharp…

Astrophysics · Physics 2009-11-07 D. R. Ardila , G. Basri , F. M. Walter , J. A. Valenti , C. M. Johns-Krull

We present an analysis of STIS/HST optical spectra of a sample of ten Seyfert galaxies aimed at studying the structure and physical properties of the coronal-line region (CLR). The high-spatial resolution provided by STIS allowed us to…

Astrophysics of Galaxies · Physics 2015-05-18 Ximena Mazzalay , Alberto Rodríguez-Ardila , S. Komossa

Diffuse far-ultraviolet (FUV) emissions from the Lupus Loop region (SNR 330.0+15.0) have been observed with Spectroscopy of Plasma Evolution from Astrophysical Radiation (SPEAR), also known as Far-ultraviolet IMaging Spectrograph (FIMS). We…

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