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Related papers: Diffuse Far-ultraviolet Observation of the Lupus L…

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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)…

The distribution of a low-density transition temperature (10^4.5 - 10^5.5 K) gas in the interstellar medium conveys the character and evolution of diffuse matter in the Galaxy. This difficult to observe component of the ISM emits mainly in…

Astrophysics of Galaxies · Physics 2011-09-09 Eric J. Korpela , Martin Sirk , Jerry Edelstein , Kwangil Seon , Kyoung-Wook Min , Wonyong Han

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

Diffuse far-UV emission arising from the edge of the Orion-Eridanus superbubble was observed with the SPEAR imaging spectrometer, revealing numerous emission lines arising from both atomic species and H2. Spatial variations in line…

Astrophysics · Physics 2009-11-11 J. Kregenow , J. Edelstein , E. Korpela , B. Welsh , C. Heiles , K. Ryu , K. Min , Y. Lim , I. Yuk , H. Jin , K. Seon

We present SPEAR/FIMS far-ultraviolet observations near the North Ecliptic Pole. This area, at b~30 degrees and with intermediate HI column, seems to be a fairly typical line of sight that is representative of general processes in the…

We used the FUSE (Far Ultraviolet Spectroscopic Explorer) satellite to observe OVI emission along two sightlines towards the edge of the interaction zone (IZ) between the Loop I superbubble and the Local Bubble. One sightline was chosen…

Astrophysics · Physics 2009-08-12 Shauna M. Sallmen , Eric J. Korpela , Hiroki Yamashita

We present far ultraviolet (FUV: 912 - 1750AA) spectral imaging observations recorded with the SPEAR satellite of the interstellar OVI (1032AA), CIV (1550AA), SiIV (1394AA), SiII* (1533AA) and AlII (1671AA) emission lines originating in a…

Astrophysics · Physics 2009-11-13 B. Y. Welsh , J. Edelstein , E. Korpela

We present the general properties of the far-ultraviolet (FUV; 1370-1720A) continuum background over most of the sky, obtained with the Spectroscopy of Plasma Evolution from Astrophysical Radiation instrument (SPEAR, also known as FIMS),…

Astrophysics of Galaxies · Physics 2015-05-19 K. -I. Seon , J. Edelstein , E. Korpela , A. Witt , K. -W. Min , W. Han , J. Shinn , I. -J. Kim , J. -W. Park

One of the keys to interpreting the character and evolution of interstellar matter in the galaxy is understanding the distribution of the low density hot (10^5 K -10^6 K) phase of the interstellar medium (ISM). This phase is much more…

Astrophysics · Physics 2009-10-30 Eric J. Korpela , Stuart Bowyer , Jerry Edelstein

Diffuse far-ultraviolet (FUV: 1370-1670 A) flux from the Taurus molecular cloud region has been observed with the SPEAR/FIMS imaging spectrograph. An FUV continuum map of the Taurus region, similar to the visual extinction maps, shows a…

We report the analysis results of far ultraviolet (FUV) observations, made for a broad region around $\alpha$ Vir (Spica) including the interaction zone of Loop I and the Local Bubble. The whole region was optically thin and a general…

Astrophysics of Galaxies · Physics 2015-06-16 Yeon-Ju Choi , Kyoung-Wook Min , Kwang-Il Seon , Tae-Ho Lim , Young-Soo Jo , Jae-Woo Park

Dust scattering is the main source of diffuse emission in the far-ultraviolet (FUV). For several locations in the Large Magellanic Cloud (LMC), Far Ultraviolet Spectroscopic Explorer (FUSE) satellite has observed diffuse radiation in the…

Astrophysics of Galaxies · Physics 2016-04-05 Gautam Saikia , P. Shalima , Rupjyoti Gogoi , Amit Pathak

We present new HST-COS G130M spectroscopy for a sightline toward a filament projected 1.9 kpc from the nucleus of M87. The combination of the sensitivity of COS and the proximity of M87 allows us to study the structure of this filament in…

Astrophysics of Galaxies · Physics 2018-10-03 Michael E. Anderson , Rashid Sunyaev

We present a survey of diffuse O VI emission in the interstellar medium obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE). Spanning 5.5 years of FUSE observations, from launch through 2004 December, our data set consists of…

Astrophysics · Physics 2008-11-26 W. Van Dyke Dixon , Ravi Sankrit , Birgit Otte

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 report the first Far Ultraviolet Spectroscopic Explorer (FUSE) measurements of diffuse O VI (lambda,lambda 1032,1038) emission from the general diffuse interstellar medium outside of supernova remnants or superbubbles. We observed a…

The SPEAR (or 'FIMS') instrumentation has been used to conduct the first large-scale spectral mapping of diffuse cosmic far ultraviolet (FUV, 900-1750 AA) emission, including important diagnostics of interstellar hot (10^4 K - 10^6 K) and…

We present the first far-ultraviolet (FUV) emission-line morphologies of the whole region of the supernova remnant (SNR) G65.3+5.7 using the FIMS/SPEAR data. The morphologies of the C IV {\lambda}{\lambda}1548, 1551, He II {\lambda}1640,…

Astrophysics of Galaxies · Physics 2015-05-19 I. -J. Kim , K. -I. Seon , K. -W. Min , J. -H. Shinn , W. Han , J. Edelstein

We present Herschel PACS and SPIRE spectroscopy of the most important far-infrared cooling lines in M51, [CII](158 \mu m), [NII](122 & 205 \mu m), [OI](63 and 145 \mu m) and [OIII](88 \mu m). We compare the observed flux of these lines with…

After discovery of the Fermi bubbles, giant structures observed in radio to X-rays have been discussed as possi- ble evidence of past activities in the Galactic Center (GC). We report here on the analysis of Suzaku data pointing around the…

Astrophysics of Galaxies · Physics 2018-08-08 Masahiro Akita , Jun Kataoka , Makoto Arimoto , Yoshiaki Sofue , Tomonori Totani , Yoshiyuki Inoue , Shinya Nakashima
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