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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…
Project Lyman
Stephan R. McCandliss, Jeffrey W. Kruk, William P. Blair +20
We explore the design of a space mission, Project Lyman, which has the goal of quantifying the ionization history of the universe from the present epoch to a redshift of z ~ 3. Obs…
The Chandra ACIS Survey of M33 (ChASeM33): Investigating the Hot Ionized Medium in NGC604
R. Tuellmann, T. J. Gaetz, P. P. Plucinsky +7
NGC604 is the largest HII-region in M33, second only within the Local Group to 30 Dor, and is important as a laboratory for understanding how massive young stellar clusters interac…
Chandra ACIS Survey of M33 (ChASeM33): A First Look
Paul P. Plucinsky, Benjamin Williams, Knox S. Long +22
We present an overview of the Chandra ACIS Survey of M33 (ChASeM33): A Deep Survey of the Nearest Face-on Spiral Galaxy. The 1.4 Ms survey covers the galaxy out to $R \approx 18\ar…
Chandra ACIS Survey of M33 (ChASeM33): X-ray Imaging Spectroscopy of M33SNR21, the Brightest X-ray Supernova Remnant in M33
Terrance J. Gaetz, William P. Blair, John P. Hughes +11
We present and interpret new X-ray data for M33SNR21, the brightest X-ray supernova remnant (SNR) in M33. The SNR is in seen projection against (and appears to be interacting with)…
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…
Possible Detection of OVI from the LMC Superbubble N70
Charles W. Danforth, William P. Blair
We present FUSE observations toward four stars in the LMC superbubble N70 and compare these spectra to those of four comparison targets located in nearby field and diffuse regions.…
A high resolution UV absorption spectrum of supernova ejecta in SN1006
Andrew J. S. Hamilton, Robert A. Fesen, William P. Blair
We report a high resolution, far-ultraviolet, STIS E140M spectrum of the strong, broad Si II, III, and IV features produced by the ejecta of SN1006 seen in absorption against the b…
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…
STIS Spectroscopy of Young Star Clusters in "The Antennae" Galaxies (NGC 4038/4039)
Bradley C. Whitmore, Diane Gilmore, C. Leitherer +6
Long-slit spectra of several dozen young star clusters have been obtained at three positions in the Antennae galaxies with the Space Telescope Imaging Spectrograph (STIS) and its 5…
FUV Spectroscopy of the Dwarf Novae SS Cygni and WX Hydri in Quiescence
Knox S. Long, Cynthia S. Froning, Christian Knigge +3
We present time-resolved FUV spectra of the dwarf novae SS Cyg and WX Hyi in quiescence from observations using the Hopkins Ultraviolet Telescope on the Astro-1 and Astro-2 Space S…
Revealing the Supernova Remnant Population of M33 with Chandra
Parviz Ghavamian, William P. Blair, Knox S. Long +3
We present results of a search for supernova remnants (SNRs) in archival Chandra images of M33. We have identified X-ray SNRs by comparing the list of Chandra, X-ray sources in M33…
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…
Kepler's Supernova Remnant: The view at 400 Years
W. P. Blair
October 2004 marks the 400th anniversary of the sighting of SN 1604, now marked by the presence of an expanding nebulosity known as Kepler's supernova remnant. Of the small number…
FORTIS: Pathfinder to the Lyman Continuum
Stephan R. McCandliss, Kevin France, Paul D. Feldman +7
Shull et al. (1999) have asserted that the contribution of stars, relative to quasars, to the metagalactic background radiation that ionizes most of the baryons in the universe rem…
Two New Low Galactic D/H Measurements from FUSE
Brian E. Wood, Jeffrey L. Linsky, Guillaume Hebrard +3
We analyze interstellar absorption observed towards two subdwarf O stars, JL 9 and LSS 1274, using spectra taken by the Far Ultraviolet Spectroscopic Explorer (FUSE). Column densit…
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,…
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…