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Ejecta, Dust, and Synchrotron Radiation in B0540-69.3: A More Crab-Like Remnant than the Crab
Brian J. Williams, Kazimierz J. Borkowski, Stephen P. Reynolds +10
We present near and mid-infrared observations of the pulsar-wind nebula (PWN) B0540-69.3 and its associated supernova remnant made with the {\it Spitzer Space Telescope}. We report…
Recent FUSE Observations of Diffuse O VI Emission from the Interstellar Medium
W. Van Dyke Dixon, Ravi Sankrit
We present new results from our survey of diffuse O VI-emitting gas in the interstellar medium with the Far Ultraviolet Spectroscopic Explorer (FUSE). Background observations obtai…
The Far Ultraviolet Spectroscopic Explorer Survey of OVI Absorption in the Disk of the Milky Way
D. V. Bowen, E. B. Jenkins, T. M. Tripp +12
To probe the distribution and physical characteristics of interstellar gas at temperatures T ~ 3e5 K in the disk of the Milky Way, we have used the Far Ultraviolet Spectroscopic Ex…
Far-Ultraviolet Cooling Features of the Antlia Supernova Remnant
Jong-Ho Shinn, Kyoung Wook Min, Ravi Sankrit +7
We present far-ultraviolet observations of the Antlia supernova remnant obtained with Far-ultraviolet IMaging Spectrograph (FIMS, also called SPEAR). The strongest lines observed a…
The Detection of Far Ultraviolet Line Emission from Balmer-Dominated Supernova Remnants in the Large Magellanic Cloud
Parviz Ghavamian, William P. Blair, Ravi Sankrit +2
We present the first far ultraviolet (FUV) spectra of the four known Balmer-dominated supernova remnants (SNRs) in the Large Magellanic Cloud, acquired with the Far Ultraviolet Spe…
Spitzer Space Telescope Observations of Kepler's Supernova Remnant: A Detailed Look at the Circumstellar Dust Component
William P. Blair, Parviz Ghavamian, Knox S. Long +4
We present 3.6 - 160 micron infrared images of Kepler's supernova remnant (SN1604) obtained with the IRAC and MIPS instruments on the Spitzer Space Telescope. We also present MIPS…
The pre-shock gas of SN1006 from HST/ACS observations
J. C. Raymond, K. E. Korreck, Q. C. Sedlacek +3
We derive the pre-shock density and scale length along the line of sight for the collisionless shock from a deep HST image that resolves the H alpha filament in SN1006 and updated…
Dust Destruction in Fast Shocks of Core-Collapse Supernova Remnants in the Large Magellanic Cloud
Brian J. Williams, K. J. Borkowski, S. P. Reynolds +9
We report observations with the MIPS instrument aboard the {\it Spitzer Space Telescope} (SST) of four supernova remnants (SNRs) believed to be the result of core-collapse SNe: N13…
Far Ultraviolet Spectroscopic Explorer Survey of Magellanic Cloud Supernova Remnants
William P. Blair, Parviz Ghavamian, Ravi Sankrit +1
We report the progress to date from an ongoing unbiased ultraviolet survey of supernova remnants in the Magellanic Clouds using the Far Ultraviolet Spectroscopic Explorer (FUSE) sa…
An Extended FUSE Survey of Diffuse O VI Emission in the Interstellar Medium
W. Van Dyke Dixon, Ravi Sankrit, Birgit Otte
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, fr…
Dust Destruction in Type Ia Supernova Remnants in the Large Magellanic Cloud
Kazimierz J. Borkowski, Brian J. Williams, Stephen P. Reynolds +9
We present first results from an extensive survey of Magellanic Clouds supernova remnants (SNRs) with the Spitzer Space Telescope. We describe IRAC and MIPS imaging observations at…
SPEAR Far Ultraviolet Spectral Images of the Cygnus Loop
Kwang-Il Seon, Wonyong Han, Uk-Won Nam +7
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…
Far Ultraviolet Spectral Images of the Vela Supernova Remnant
K. Nishikida, J. Edelstein, E. J. Korpela +8
We present far-ultraviolet (FUV) spectral-imaging observations of the Vela supernova remnant (SNR), obtained with the Spectroscopy of Plasma Evolution from Astrophysical Radiation…
The Nature of Ultra Luminous X-ray Sources
C. M. Gutierrez, M. Lopez-Corredoira
We present spectroscopic observations of six optical counterparts of intermediate luminosity X-ray sources (ULXs) around nearby galaxies. The spectra of the six objects show the pr…
An Unbiased Far Ultraviolet Survey of Magellanic Cloud Supernova Remnants
Parviz Ghavamian, William P. Blair, Ravi Sankrit +2
We have undertaken a FUSE survey of Magellanic Cloud supernova remnants, looking primarily for O VI and C III emission lines. Work in earlier cycles with FUSE indicates that optica…
A Million-Second Chandra View of Cassiopeia A
Una Hwang, J. Martin Laming, Carles Badenes +20
We introduce a million-second observation of the supernova remnant Cassiopeia A with the Chandra X-ray Observatory. The bipolar structure of the Si-rich ejecta (NE jet and SW count…
Discovery of an OVI Emitting Nebula around the Hot White Dwarf KPD 0005+5106
Birgit Otte, W. Van Dyke Dixon, Ravi Sankrit
A survey of diffuse interstellar sight lines observed with the Far Ultraviolet Spectroscopic Explorer has led to the serendipitous discovery of a high-ionization nebula around the…
Optical and Far-UV Spectroscopy of Knot D in the Vela Supernova Remnant
Ravi Sankrit, William P. Blair, John C. Raymond
We present spectra of optical filaments associated with the X-ray knot D in the Vela supernova remnant. It has been suggested that Knot D is formed by a bullet of supernova ejecta,…
FUSE Detection of Galactic OVI Emission in the Halo above the Perseus Arm
Birgit Otte, W. Van Dyke Dixon, Ravi Sankrit
Background observations obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) toward l=95.4, b=36.1 show OVI 1032,1038 in emission. This sight line probes a region of str…
Far-Ultraviolet & Halpha Spectroscopy of SNR0057-7226 in the SMC HII Region N66
Charles Danforth, Ravi Sankrit, William Blair +2
N66/NGC346 is the largest and brightest HII region in the Small Magellanic Cloud and contains at least one known supernova remnant SNR0057-7226. Optical emission from the remnant i…
Far Ultraviolet Spectra of a Non-Radiative Shock Wave in the Cygnus Loop
John Raymond, Parviz Ghavamian, Ravi Sankrit +2
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 narrowes…
FUSE Observations of the Cygnus Loop: OVI Emission from a Nonradiative Shock
Ravi Sankrit, William P. Blair
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 spe…
Observations of O VI Emission from the Diffuse Interstellar Medium
R. L. Shelton, J. W. Kruk, E. M. Murphy +22
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 outsi…
Resonance Line Scattering in Supernova Remnant Shocks
Ravi Sankrit, Kenneth Wood
We present a three dimensional radiative transfer model to examine the effects of resonance line scattering in the post-shock flow behind a non-radiative supernova remnant shock. F…