Search Results - "Shen, Ken"

THE INITIATION AND PROPAGATION OF HELIUM DETONATIONS IN WHITE DWARF ENVELOPES by Shen, Ken J, Moore, Kevin

“…Detonations in helium-rich envelopes surrounding white dwarfs have garnered attention as triggers of faint thermonuclear ".Ia" supernovae and double detonation…”
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Binary Interaction Dominates Mass Ejection in Classical Novae by Shen, Ken J., Quataert, Eliot

“…Abstract Recent observations suggest our understanding of mass loss in classical novae is incomplete, motivating a new theoretical examination of the physical…”
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New Insights into Classical Novae by Chomiuk, Laura, Metzger, Brian D, Shen, Ken J

“…We survey our understanding of classical novae-nonterminal, thermonuclear eruptions on the surfaces of white dwarfs in binary systems. The recent and…”
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WAIT FOR IT: POST-SUPERNOVA WINDS DRIVEN BY DELAYED RADIOACTIVE DECAYS by Shen, Ken J., Schwab, Josiah

“…ABSTRACT In most astrophysical situations, the radioactive decay of to occurs via electron capture with a fixed half-life of 6.1 days. However, this decay rate…”
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THE IGNITION OF CARBON DETONATIONS VIA CONVERGING SHOCK WAVES IN WHITE DWARFS by Shen, Ken J, Bildsten, Lars

“…The progenitor channel responsible for the majority of Type Ia supernovae is still uncertain. One emergent scenario involves the detonation of a He-rich layer…”
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Sub-Chandrasekhar-mass White Dwarf Detonations Revisited by Shen, Ken J., Kasen, Daniel, Miles, Broxton J., Townsley, Dean M.

“…The detonation of a sub-Chandrasekhar-mass white dwarf (WD) has emerged as one of the most promising Type Ia supernova (SN Ia) progenitor scenarios. Recent…”
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The Progenitors of Calcium-strong Transients by Shen, Ken J., Quataert, Eliot, Pakmor, Rüdiger

“…A new class of faint, spectroscopically peculiar transients has emerged in the last decade. We term these events "calcium-strong transients" (CaSTs) because of…”
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Birth of the ELMs: a ZTF survey for evolved cataclysmic variables turning into extremely low-mass white dwarfs by El-Badry, Kareem, Rix, Hans-Walter, Quataert, Eliot, Kupfer, Thomas, Shen, Ken J

“…ABSTRACT We present a systematic survey for mass-transferring and recently detached cataclysmic variables (CVs) with evolved secondaries, which are progenitors…”
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Multidimensional Radiative Transfer Calculations of Double Detonations of Sub-Chandrasekhar-mass White Dwarfs by Shen, Ken J., Boos, Samuel J., Townsley, Dean M., Kasen, Daniel

“…Abstract Study of the double-detonation Type Ia supernova scenario, in which a helium-shell detonation triggers a carbon-core detonation in a…”
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THE LONG-TERM EVOLUTION OF DOUBLE WHITE DWARF MERGERS by SHEN, Ken J, BILDSTEN, Lars, KASEN, Daniel, QUATAERT, Eliot

“…In this paper, we present a model for the long-term evolution of the merger of two unequal mass C/O white dwarfs (WDs). After the dynamical phase of the…”
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Multidimensional Parameter Study of Double Detonation Type Ia Supernovae Originating from Thin Helium Shell White Dwarfs by Boos, Samuel J., Townsley, Dean M., Shen, Ken J., Caldwell, Spencer, Miles, Broxton J.

“…Abstract Despite the importance of Type Ia supernovae (SNe Ia) throughout astronomy, the precise progenitor systems and explosion mechanisms that drive SNe Ia…”
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Unstable Helium Shell Burning on Accreting White Dwarfs by Shen, Ken J, Bildsten, Lars

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Three Hypervelocity White Dwarfs in Gaia DR2: Evidence for Dynamically Driven Double-degenerate Double-detonation Type Ia Supernovae by Shen, Ken J., Boubert, Douglas, Gänsicke, Boris T., Jha, Saurabh W., Andrews, Jennifer E., Chomiuk, Laura, Foley, Ryan J., Fraser, Morgan, Gromadzki, Mariusz, Guillochon, James, Kotze, Marissa M., Maguire, Kate, Siebert, Matthew R., Smith, Nathan, Strader, Jay, Badenes, Carles, Kerzendorf, Wolfgang E., Koester, Detlev, Kromer, Markus, Miles, Broxton, Pakmor, Rüdiger, Schwab, Josiah, Toloza, Odette, Toonen, Silvia, Townsley, Dean M., Williams, Brian J.

“…Double detonations in double white dwarf (WD) binaries undergoing unstable mass transfer have emerged in recent years as one of the most promising Type Ia…”
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The Q Branch Cooling Anomaly Can Be Explained by Mergers of White Dwarfs and Subgiant Stars by Shen, Ken J., Blouin, Simon, Breivik, Katelyn

“…Abstract Gaia's exquisite parallax measurements allowed for the discovery and characterization of the Q branch in the Hertzsprung–Russell diagram, where…”
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Almost All Carbon/Oxygen White Dwarfs Can Host Double Detonations by Shen, Ken J., Boos, Samuel J., Townsley, Dean M.

“…Abstract Double detonations of sub-Chandrasekhar-mass white dwarfs (WDs) in unstably mass-transferring double WD binaries have become one of the leading…”
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Manganese Indicates a Transition from Sub- to Near-Chandrasekhar Type Ia Supernovae in Dwarf Galaxies by de los Reyes, Mithi A. C., Kirby, Evan N., Seitenzahl, Ivo R., Shen, Ken J.

“…Abstract Manganese abundances are sensitive probes of the progenitors of Type Ia supernovae (SNe Ia). In this work, we present a catalog of manganese…”
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Type Ia Supernovae Can Arise from the Detonations of Both Stars in a Double Degenerate Binary by Boos, Samuel J., Townsley, Dean M., Shen, Ken J.

“…Abstract The precise origin of Type Ia supernovae (SNe Ia) is unknown despite their value to numerous areas in astronomy. While it is a long-standing consensus…”
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Transients from the Cataclysmic Deaths of Cataclysmic Variables by Metzger, Brian D., Zenati, Yossef, Chomiuk, Laura, Shen, Ken J., Strader, Jay

“…Abstract We explore the observational appearance of the merger of a low-mass star with a white dwarf (WD) binary companion. We are motivated by recent work…”
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Evidence for Sub-Chandrasekhar Type Ia Supernovae from Stellar Abundances in Dwarf Galaxies by Kirby, Evan N., Xie, Justin L., Guo, Rachel, de los Reyes, Mithi A. C., Bergemann, Maria, Kovalev, Mikhail, Shen, Ken J., Piro, Anthony L., McWilliam, Andrew

“…Abstract There is no consensus on the progenitors of Type Ia supernovae (SNe Ia) despite their importance for cosmology and chemical evolution. We address this…”
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The viscous evolution of white dwarf merger remnants by Schwab, Josiah, Shen, Ken J., Quataert, Eliot, Dan, Marius, Rosswog, Stephan

“…Abstract The merger of two white dwarfs (WDs) creates a differentially rotating remnant which is unstable to magnetohydrodynamic instabilities. These…”
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