Search Results - "Fesen, Robert A."

The bubble-like interior of the core-collapse supernova remnant Cassiopeia A by Milisavljevic, Dan, Fesen, Robert A.

“…The death of massive stars is believed to involve aspheric explosions initiated by the collapse of an iron core. The specifics of these catastrophic explosions…”
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AN HST SURVEY OF THE HIGHEST-VELOCITY EJECTA IN CASSIOPEIA A by Fesen, Robert A, Milisavljevic, Dan

“…ABSTRACT We present Hubble Space Telescope WFC3/IR images of the Cassiopeia A supernova remnant that survey its high-velocity, S-rich debris in the NE jet and…”
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The Morphologies and Kinematics of Supernova Remnants by Lopez, Laura A., Fesen, Robert A.

“…We review the major advances in understanding the morphologies and kinematics of supernova remnants (SNRs). Simulations of SN explosions have improved…”
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Discovery of an Exceptional Optical Nebulosity in the Suspected Galactic SN Iax Remnant Pa 30 Linked to the Historical Guest Star of 1181 CE by Fesen, Robert A., Schaefer, Bradley E., Patchick, Dana

“…Abstract A newly recognized young Galactic supernova (SN) remnant, Pa 30 (G123.1+4.6), centered on a hot central star with a ∼16,000 km s −1 wind velocity, has…”
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Late-time Circumstellar Interaction of SN 2017eaw in NGC 6946 by Weil, Kathryn E., Fesen, Robert A., Patnaude, Daniel J., Milisavljevic, Dan

“…SN 2017eaw, the tenth supernova observed in NGC 6946, was a normal Type II-P supernova with an estimated 11-13 M red supergiant progenitor. Here we present…”
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The Cygnus Loop’s distance, properties, and environment driven morphology by Fesen, Robert A, Weil, Kathryn E, Cisneros, Ignacio A, Blair, William P, Raymond, John C

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G107.0+9.0: a new large optically bright, radio, and X-Ray faint galactic supernova remnant in Cepheus by Fesen, Robert A, Weil, Kathryn E, Raymond, John C, Huet, Laurent, Rusterholz, Martin, di Cicco, Dennis, Mittelman, David, Walker, Sean, Drechsler, Marcel, Faworski, Sheldon

“…ABSTRACT Wide-field H α images of the Galactic plane have revealed a new supernova remnant (SNR) nearly 3 deg in diameter centred at l = 107.0, b = +9.0. Deep…”
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Hubble Space Telescope Proper Motion Measurements of Supernova Remnant N132D: Center of Expansion and Age by Banovetz, John, Milisavljevic, Dan, Sravan, Niharika, Weil, Kathryn E., Subrayan, Bhagya, Fesen, Robert A., Patnaude, Daniel J., Plucinsky, Paul P., Law, Charles J., Blair, William P., Morse, Jon A.

“…Abstract We present proper motion measurements of the oxygen-rich ejecta of the LMC supernova remnant N132D using two epochs of Hubble Space Telescope Advanced…”
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LATE-TIME OPTICAL EMISSION FROM CORE-COLLAPSE SUPERNOVAE by MILISAVLJEVIC, Dan, FESEN, Robert A, CHEVALIER, Roger A, KIRSHNER, Robert P, CHALLIS, Peter, TURATTO, Massimo

“…Ground-based optical spectra and Hubble Space Telescope images of 10 core-collapse supernovae (CCSNe) obtained several years to decades after outburst are…”
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The Spatial and Emission Properties of the Large [O iii] Emission Nebula Near M31 by Fesen, Robert A., Kimeswenger, Stefan, Shull, J. Michael, Drechsler, Marcel, Strottner, Xavier, Sainty, Yann, Falls, Bray, Vergnes, Christophe, Martino, Nicolas, Walker, Sean, Rupert, Justin

“…Abstract Drechsler et al. reported the unexpected discovery of a 1.°5 long [O iii ] emission nebula 1.°2 southeast of the M31 nucleus. Here we present…”
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Detection of the Red Supergiant Wind from the Progenitor of Cassiopeia A by Weil, Kathryn E., Fesen, Robert A., Patnaude, Daniel J., Raymond, John C., Chevalier, Roger A., Milisavljevic, Dan, Gerardy, Christopher L.

“…Cassiopeia A (Cas A) is one of the best studied young Galactic supernova remnants. While it provides a rare opportunity to study in detail the remnant of a…”
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Deep Optical Emission-line Images of Nine Known and Three New Galactic Supernova Remnants by Fesen, Robert A., Drechsler, Marcel, Strottner, Xavier, Falls, Bray, Sainty, Yann, Martino, Nicolas, Galli, Richard, Ludgate, Mathew, Blauensteiner, Markus, Reich, Wolfgang, Walker, Sean, di Cicco, Dennis, Mittelman, David, Morgan, Curtis, Kaeouach, Aziz Ettahar, Rupert, Justin, Benkhaldoun, Zouhair

“…Deep optical emission-line images are presented for nine known plus three new Galactic supernova remnants (SNRs), all but one having at least one angular…”
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The Center of Expansion and Age of the Oxygen-rich Supernova Remnant 1E 0102.2-7219 by Banovetz, John, Milisavljevic, Dan, Sravan, Niharika, Fesen, Robert A., Patnaude, Daniel J., Plucinsky, Paul P., Blair, William P., Weil, Kathryn E., Morse, Jon A., Margutti, Raffaella, Drout, Maria R.

“…Abstract We present new proper-motion measurements of optically emitting oxygen-rich knots of supernova remnant 1E 0102.2-7219 (E0102), which are used to…”
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A distance estimate to the Cygnus Loop based on the distances to two stars located within the remnant by Fesen, Robert A, Neustadt, Jack M M, Black, Christine S, Milisavljevic, Dan

“…Abstract Underlying nearly every quantitative discussion of the Cygnus Loop supernova remnant is uncertainty about its distance. Here, we present optical…”
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ELECTRON-ION EQUILIBRIUM AND SHOCK PRECURSORS IN THE NORTHEAST LIMB OF THE CYGNUS LOOP by Medina, Amber A, Raymond, John C, Edgar, Richard J, Caldwell, Nelson, Fesen, Robert A, Milisavljevic, Dan

“…We present an observational study using high-resolution echelle spectroscopy of collisionless shocks in the Cygnus Loop supernova remnant. Measured H alpha…”
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Doublets and Double Peaks: Late-Time [O I] λλ6300, 6364 Line Profiles of Stripped-Envelope, Core-Collapse Supernovae by Milisavljevic, Dan, Fesen, Robert A, Gerardy, Christopher L, Kirshner, Robert P, Challis, Peter

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Detection of extensive optical emission from the extremely radio faint Galactic supernova remnant G182.4+4.3 by Fesen, Robert A, Neustadt, Jack M M, How, Thomas G, Black, Christine S

“…Abstract Wide-field H α images of the radio faint Galactic supernova remnant G182.4+4.2 reveal a surprisingly extensive and complex emission structure, with an…”
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A 3D kinematic study of the northern ejecta ‘jet’ of the Crab nebula by Black, Christine S, Fesen, Robert A

“…We present moderate resolution [O III] ...4959, 5007 line emission spectra of the Crab nebula's northern ejecta jet. These data along with an [O III] image of…”
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The Expansion Asymmetry and Age of the Cassiopeia A Supernova Remnant by Fesen, Robert A, Hammell, Molly C, Morse, Jon, Chevalier, Roger A, Borkowski, Kazimierz J, Dopita, Michael A, Gerardy, Christopher L, Lawrence, Stephen S, Raymond, John C, van den Bergh, Sidney

“…HST images of the young supernova remnant Cas A are used to explore the expansion and spatial distribution of its highest velocity debris. ACS WFC images taken…”
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A DETAILED KINEMATIC MAP OF CASSIOPEIA A'S OPTICAL MAIN SHELL AND OUTER HIGH-VELOCITY EJECTA by Milisavljevic, Dan, Fesen, Robert A

“…We present three-dimensional (3D) kinematic reconstructions of optically emitting material in the young Galactic supernova remnant Cassiopeia A (Cas A). These…”
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