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Anthony L. Piro
Researcher at Carnegie Institution for Science
Publications - 298
Citations - 14937
Anthony L. Piro is an academic researcher from Carnegie Institution for Science. The author has contributed to research in topics: Supernova & White dwarf. The author has an hindex of 62, co-authored 268 publications receiving 12532 citations. Previous affiliations of Anthony L. Piro include California Institute of Technology & Carnegie Learning.
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Journal ArticleDOI
The Signature of Single-Degenerate Accretion Induced Collapse
Anthony L. Piro,Todd A. Thompson +1 more
Abstract: The accretion-induced collapse (AIC) of a white dwarf to a neutron star has long been suggested as a natural theoretical outcome in stellar evolution, but there has never been a direct detection of such an event. This is not surprising since the small amount of radioactive nickel synthesized (~10^(−3) M_☉) implies a relatively dim optical transient. Here we argue that a particularly strong signature of an AIC would occur for an oxygen–neon–magnesium (ONeMg) white dwarf accreting from a star that is experiencing Roche-lobe overflow as it becomes a red giant. In such cases, the ~10^(50) erg explosion from the AIC collides with and shock-heats the surface of the extended companion, creating an X-ray flash lasting ~1 hr followed by an optical signature that peaks at an absolute magnitude of ~ −16 to −18 and lasts for a few days to a week. These events would be especially striking in old stellar environments where hydrogen-rich supernova-like transients would not normally be expected. Although the rate of such events is not currently known, we describe observing strategies that could be utilized with high cadence surveys that should either detect these events or place strong constraints on their rates.
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Exoplanets Torqued by the Combined Tides of a Moon and Parent Star
TL;DR: In this paper, the authors proposed a method to solve the problem of Chinese-English language adaptation in space exploration using the China Scholarship Council (CSC). But this method is not suitable for outdoor applications.
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Dynamical Formation Channels for Fast Radio Bursts in Globular Clusters
TL;DR: In this paper, the authors explore dynamical formation scenarios for objects in old globular clusters that may plausibly power fast radio burst (FRB) models, using N-body simulations.
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SN 2013aa and SN 2017cbv: Two Sibling Type Ia Supernovae in the Spiral Galaxy NGC 5643
Christopher R. Burns,Chris Ashall,Carlos Contreras,Peter J. Brown,Maximilian Stritzinger,Mark M. Phillips,Ricardo Flores,Nicholas B. Suntzeff,Eric Hsiao,Syed Uddin,Joshua D. Simon,Kevin Krisciunas,Abdo Campillay,Ryan J. Foley,Wendy L. Freedman,Lluís Galbany,C. Gonzalez,Peter Hoeflich,S. Holmbo,Charles D. Kilpatrick,Robert P. Kirshner,Robert P. Kirshner,Nidia Morrell,Nahir Muñoz-Elgueta,Anthony L. Piro,César Rojas-Bravo,David J. Sand,Jaime Vargas-González,N. Ulloa,J. Vílchez +29 more
TL;DR: In this paper, photometric and spectroscopic observations of SN 2013aa and SN 2017cbv, two nearly identical type Ia supernovae (SNe Ia) in the host galaxy NGC 5643 are presented.
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Evidence for Cocoon Emission from the Early Light Curve of SSS17a
TL;DR: In this article, it was shown that the power-law evolution of the luminosity, temperature, and photospheric radius during these early times can be explained by cooling of shock heated material around the neutron star merger.