Search Results - "Lopez, Laura A."
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1
Temperature and Metallicity Gradients in the Hot Gas Outflows of M82
Published in The Astrophysical journal (01-12-2020)“…We utilize deep Chandra X-ray Observatory imaging and spectra of M82, the prototype of a starbursting galaxy with a multiphase wind, to map the hot plasma…”
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2
Comparing Neutron Star Kicks to Supernova Remnant Asymmetries
Published in The Astrophysical journal (20-07-2017)“…Supernova explosions are inherently asymmetric and can accelerate new-born neutron stars (NSs) to hundreds of km s−1. Two prevailing theories to explain NS…”
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3
The Morphologies and Kinematics of Supernova Remnants
Published in Space science reviews (01-02-2018)“…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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4
Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A
Published in The Astrophysical journal (01-02-2020)“…Supernova remnants (SNRs) offer the means to study supernovae (SNe) long after the original explosion and can provide a unique insight into the mechanism that…”
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5
What Drives the Expansion of Giant H II Regions?: A Study of Stellar Feedback in 30 Doradus
Published in The Astrophysical journal (20-04-2011)“…Observations show that star formation is an inefficient and slow process. This result can be attributed to the injection of energy and momentum by stars that…”
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Estimating Ejecta Mass Ratios in Kepler’s Supernova Remnant: Global X-Ray Spectral Analysis Including Suzaku Systematics and Emitting Volume Uncertainties
Published in The Astrophysical journal (01-09-2023)“…Abstract The exact origins of many Type Ia supernovae—progenitor scenarios and explosive mechanisms—remain uncertain. In this work, we analyze the global…”
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Spatially Resolved Study of Recombining Plasma in W49B Using XMM-Newton
Published in The Astrophysical journal (01-11-2020)“…Abstract W49B is the youngest supernova remnant (SNR) to date that exhibits recombining plasma. The two prevailing theories of this overionization are rapid…”
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THE GALACTIC SUPERNOVA REMNANT W49B LIKELY ORIGINATES FROM A JET-DRIVEN, CORE-COLLAPSE EXPLOSION
Published in The Astrophysical journal (10-02-2013)“…We present results from a 220 ks observation of the Galactic supernova remnant (SNR) W49B using the Advanced CCD Imaging Spectrometer on board the Chanrda…”
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9
Evidence for Cosmic-Ray Escape in the Small Magellanic Cloud Using Fermi Gamma Rays
Published in The Astrophysical journal (01-11-2018)“…Galaxy formation simulations demonstrate that cosmic-ray (CR) feedback may be important in the launching of galactic-scale winds. CR protons dominate the bulk…”
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10
Measurement of the Core-collapse Progenitor Mass Distribution of the Small Magellanic Cloud
Published in The Astrophysical journal (20-01-2019)“…The physics of core-collapse (CC) supernovae (SNe) and how the explosions depend on progenitor properties are central questions in astronomy. For only a…”
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X-Ray Properties of NGC 253's Starburst-driven Outflow
Published in The Astrophysical journal (01-01-2023)“…Abstract We analyze image and spectral data from ≈365 ks of observations from the Chandra X-ray Observatory of the nearby, edge-on starburst galaxy NGC 253 to…”
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12
The Age Evolution of the Radio Morphology of Supernova Remnants
Published in The Astrophysical journal (20-10-2019)“…Recent hydrodynamical models of supernova remnants (SNRs) demonstrate that their evolution depends heavily on the inhomogeneities of the surrounding medium. As…”
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13
Hot Gas Outflow Properties of the Starburst Galaxy NGC 4945
Published in The Astrophysical journal (01-06-2024)“…Abstract We analyze 330 ks of Chandra X-ray imaging and spectra of the nearby, edge-on starburst and Seyfert type 2 galaxy NGC 4945 to measure the hot gas…”
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14
PHANGS–JWST First Results: Mapping the 3.3 μm Polycyclic Aromatic Hydrocarbon Vibrational Band in Nearby Galaxies with NIRCam Medium Bands
Published in Astrophysical journal. Letters (01-02-2023)“…Abstract We present maps of the 3.3 μ m polycyclic aromatic hydrocarbon (PAH) emission feature in NGC 628, NGC 1365, and NGC 7496 as observed with the…”
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15
Element Stratification in the Middle-aged SN Ia Remnant G344.7-0.1
Published in The Astrophysical journal (01-07-2020)“…Despite their importance, a detailed understanding of Type Ia supernovae (SNe Ia) remains elusive. X-ray measurements of the element distributions in supernova…”
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16
Comparing the Locations of Supernovae to CO (2–1) Emission in Their Host Galaxies
Published in The Astrophysical journal (01-02-2023)“…Abstract We measure the molecular gas environment near recent (<100 yr old) supernovae (SNe) using ∼1″ or ≤150 pc resolution CO (2–1) maps from the…”
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17
A Two-Component Probability Distribution Function Describes the Mid-IR Emission from the Disks of Star-forming Galaxies
Published in The Astronomical journal (01-01-2024)“…Abstract High-resolution JWST-MIRI images of nearby spiral galaxies reveal emission with complex substructures that trace dust heated both by massive young…”
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18
Hα Emission and H ii Regions at the Locations of Recent Supernovae in Nearby Galaxies
Published in The Astronomical journal (01-07-2024)“…Abstract We present a statistical analysis of the local, ≈50–100 pc scale, H α emission at the locations of recent (≤125 yr) supernovae (SNe) in nearby…”
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The PHANGS-AstroSat Atlas of Nearby Star-forming Galaxies
Published in The Astrophysical journal. Supplement series (01-03-2024)“…Abstract We present the Physics at High Angular resolution in Nearby GalaxieS (PHANGS)-AstroSat atlas, which contains UV imaging of 31 nearby star-forming…”
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UNRAVELING THE ORIGIN OF OVERIONIZED PLASMA IN THE GALACTIC SUPERNOVA REMNANT W49B
Published in The Astrophysical journal (10-11-2013)“…Recent observations have shown several supernova remnants (SNRs) have overionized plasmas, where ions are stripped of more electrons than they would be if in…”
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