Parviz Ghavamian

Details der Publikationsliste

Zeitraum

2000 - 2009

Anzahl

29

Co-Autoren

Spitzer Spectroscopy of the Galactic Supernova Remnant G292.0+1.8: Structure and Composition of the Oxygen-Rich Ejecta (2009)

Ghavamian, Parviz, Raymond, John C., Blair, William P., Long, Knox S., Tappe, Achim, Park, Sangwook, ...

We present mid-infrared (5-40 micron) spectra of shocked ejecta in the Galactic oxygen-rich supernova remnant G292.0+1.8, acquired with the IRS spectrograph on board the Spitzer Space Telescope. The...

Ejecta, Dust, and Synchrotron Radiation in B0540-69.3: A More Crab-Like Remnant than the Crab (2008)

Williams, Brian J., Borkowski, Kazimierz J., Reynolds, Stephen P., Raymond, John C., Long, Knox S., Morse, Jon A., ...

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 detections of the...

The Heating of Thermal Electrons in Fast Collisionless Shocks: The Integral Role of Cosmic Rays (2008)

Rakowski, Cara E., Laming, J. Martin, Ghavamian, Parviz

Understanding the heating of electrons to quasi-thermal energies at collisionless shocks has broad implications for plasma astrophysics. It directly impacts the interpretation of X-ray spectra from...

The Chandra ACIS Survey of M33 (ChASeM33): Transient X-ray Sources Discovered in M33 (2008)

Williams, Benjamin F., Gaetz, Terrance J., Haberl, Frank, Pietsch, Wolfgang, Shporer, Avi, Ghavamian, Parviz, ...

The Chandra ACIS Survey of M33 (ChASeM33) has acquired 7 fields of ACIS data covering M33 with 200 ks of exposure in each field. A catalog from the first 10 months of data, along with archival...

A Half-Megasecond Chandra Observation of the Oxygen-Rich Supernova Remnant G292.0+1.8 (2007)

Park, Sangwook, Hughes, John P., Slane, Patrick O., Burrows, David N., Gaensler, B. M., Ghavamian, Parviz

We report on our initial analysis of a deep 510 ks observation of the Galactic oxygen-rich supernova remnant (SNR) G292.0+1.8 with the {\it Chandra X-ray Observatory}. Our new {\it Chandra} ACIS-I...

Chandra ACIS Survey of M33 (ChASeM33): A First Look (2007)

Plucinsky, Paul P., Williams, Benjamin, Long, Knox S., Gaetz, Terrance J., Sasaki, Manami, Pietsch, Wolfgang, ...

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 $R \approx 18\arcmin (\approx 4$...

Chandra ACIS Survey of M33 (ChASeM33): X-ray Imaging Spectroscopy of M33SNR21, the Brightest X-ray Supernova Remnant in M33 (2007)

Gaetz, Terrance J., Blair, William P., Hughes, John P., Winkler, P. Frank, Long, Knox S., Pannuti, Thomas G., ...

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 bright HII...

SUBARU HDS Observations of a Balmer-Dominated Shock in Tycho's Supernova Remnant (2007)

Lee, Jae-Joon, Koo, Bon-Chul, Raymond, John, Ghavamian, Parviz, Pyo, Tae-Soo, Jitsu, Akito Ta, ...

We present an Ha spectral observation of a Balmer-dominated shock on the eastern side of Tycho's supernova remnant using the Subaru Telescope. Utilizing the High Dispersion Spectrograph (HDS), we...

The Detection of Far Ultraviolet Line Emission from Balmer-Dominated Supernova Remnants in the Large Magellanic Cloud (2007)

Ghavamian, Parviz, Blair, William P., Sankrit, Ravi, Hughes, John P., Raymond, John C.

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 Spectroscopic...

Spitzer Space Telescope Observations of Kepler's Supernova Remnant: A Detailed Look at the Circumstellar Dust Component (2007)

Blair, William P., Ghavamian, Parviz, Long, Knox S., Williams, Brian J., Borkowski, Kazimierz J., Reynolds, Stephen P., ...

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 SED low resolution...

A Physical Relationship Between Electron-Proton Temperature Equilibration and Mach Number in Fast Collisionless Shocks (2006)

Ghavamian, Parviz, Laming, J. Martin, Rakowski, Cara E.

The analysis of Balmer-dominated optical spectra from non-radiative (adiabatic) SNRs has shown that the ratio of the electron to proton temperature temperature at the blast wave is close to unity at...

Far Ultraviolet Spectroscopic Explorer Survey of Magellanic Cloud Supernova Remnants (2006)

Blair, William P., Ghavamian, Parviz, Sankrit, Ravi, Danforth, Charles W.

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) satellite. This...

Dust Destruction in Type Ia Supernova Remnants in the Large Magellanic Cloud (2006)

Borkowski, Kazimierz J., Williams, Brian J., Reynolds, Stephen P., Blair, William P., Ghavamian, Parviz, Sankrit, Ravi, ...

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 3.6, 4.5, 5.8, 8,...

Exploring the Kinematics of the Oxygen-Rich Supernova Remnant G292.0+1.8: Ejecta Shells, Fast-Moving Knots and Shocked Circumstellar Material (2005)

Ghavamian, Parviz, Hughes, John P., Willliams, T. B.

We present results of an in-depth optical study of the core collapse supernova remnant G292.0+1.8 using the Rutgers Fabry-Perot (RFP) imaging spectrometer. Our observations provide a detailed picture...

Revealing the Supernova Remnant Population of M33 with Chandra (2005)

Ghavamian, Parviz, Blair, William P., Long, Knox S., Sasaki, Manami, Gaetz, Terrance J., Plucinsky, Paul P.

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 with tabulations...

An Unbiased Far Ultraviolet Survey of Magellanic Cloud Supernova Remnants (2004)

Ghavamian, Parviz, Blair, William P., Sankrit, Ravi, Danforth, Charles, Sembach, Kenneth

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 optical and/or X-ray...

A Million-Second Chandra View of Cassiopeia A (2004)

Hwang, Una, Laming, J. Martin, Badenes, Carles, Berendse, Fred, Blondin, John, Cioffi, Denis, ...

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 counterpart) is clearly...

Pulsar bow shocks as probes of warm neutral gas (2003)

Gaensler, Bryan, Stappers, Ben, Chatterjee, Shami, Ghavamian, Parviz, Jones, Heath, Cordes, James

Pulsars have mean space velocities >~500 km/s. The consequent ram pressure results in tight confinement of the star's energetic wind, driving a bow shock into the surrounding medium. Pulsar bow...

High Resolution Spectroscopy of Balmer-Dominated Shocks in the RCW 86, Kepler and SN 1006 Supernova Remnants (2003)

Sollerman, Jesper, Ghavamian, Parviz, Lundqvist, Peter, Smith, R. Chris

We report results from high resolution optical spectroscopy of three non-radiative galactic supernova remnants, RCW 86, Kepler's supernova remnant and SN 1006. We have measured the narrow component...

The Physics of Supernova Remnant Blast Waves. II. Electron-Ion Equilibration in DEM L71 in the Large Magellanic Cloud (2003)

Rakowski, Cara E., Ghavamian, Parviz, Hughes, John P.

We present analysis and modeling of X-ray spectra from the blast wave shock of DEM L71. We have used both Chandra ACIS-S data and optical Fabry-Perot spectra of the blast wave to measure the electron...

The Physics of Supernova Remnant Blast Waves. I. Kinematics of DEM L71 in the Large Magellanic Cloud (2003)

Ghavamian, Parviz, Rakowski, Cara E., Hughes, John P., Williams, T. B.

We present the results from Fabry-Perot imaging spectroscopy of the Balmer-dominated supernova remnant DEM L71 (0505-67.9) in the LMC. Spectra extracted from the entire circumference of the blast...

Iron-Rich Ejecta in the Supernova Remnant DEM L71 (2002)

Hughes, John P., Ghavamian, Parviz, Rakowski, Cara E., Slane, Patrick O.

Chandra X-ray observations of DEM L71, a supernova remnant (SNR) in the Large Magellanic Cloud (LMC), reveal a clear double shock morphology consisting of an outer blast wave shock surrounding a...

Far Ultraviolet Spectra of a Non-Radiative Shock Wave in the Cygnus Loop (2002)

Raymond, John, Ghavamian, Parviz, Sankrit, Ravi, Blair, William, Curiel, Salvador

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...

The Optical Spectrum of the SN 1006 Supernova Remnant Revisited (2002)

Ghavamian, Parviz, Winkler, P. Frank, Raymond, John C., Long, Knox S.

We present the deepest optical spectrum acquired to date of Balmer-dominated shocks in the NW rim of SN 1006. We detect the broad and narrow components of H-alpha, H-beta and H-gamma and report the...

Far Ultraviolet Spectroscopy of a Nonradiative Shock in the Cygnus Loop: Implications for the Postshock Electron-Ion Equilibration (2000)

Ghavamian, Parviz, Raymond, John C., Blair, William P.

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...

Balmer-Dominated Spectra of Nonradiative Shocks in the Cygnus Loop, RCW 86 and Tycho Supernova Remnants (2000)

Ghavamian, Parviz, Raymond, John, Smith, R. Chris, Hartigan, Patrick

We present an observational and theoretical study of the optical emission from nonradiative shocks in three supernova remnants: the Cygnus Loop, RCW 86 and Tycho. The spectra of these shocks are...

Optical spectroscopy and numerical modeling of nonradiative shocks in supernova remnants (2000)

Ghavamian, Parviz, Ghavamian, Parviz

This thesis is an observational and theoretical study of the optical emission from nonradiative shocks in three supernova remnants: the Cygnus Loop, RCW 86 and Tycho, which together span a wide range...