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13 papers
Testing Modules for Experiments in Stellar Astrophysics (MESA)
William M. Wolf, Josiah Schwab, R. Farmer +1
Regular, automated testing is a foundational principle of modern software development. Numerous widely-used continuous integration systems exist, but they are often not suitable fo…
Modules for Experiments in Stellar Astrophysics (MESA): Time-Dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure
Adam S. Jermyn, Evan B. Bauer, Josiah Schwab +19
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). The new auto_diff module implements automatic different…
Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation
Bill Paxton, R. Smolec, Josiah Schwab +14
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). RSP is a new functionality in MESAstar that models the…
The Impact of White Dwarf Luminosity Profiles on Oscillation Frequencies
F. X. Timmes, Richard H. D. Townsend, Evan B. Bauer +3
KIC 08626021 is a pulsating DB white dwarf of considerable recent interest, and first of its class to be extensively monitored by Kepler for its pulsation properties. Fitting the o…
Non-Radial Pulsations in Post-Outburst Novae
William M. Wolf, Richard H. D. Townsend, Lars Bildsten
After an optical peak, a classical or recurrent nova settles into a brief (days to years) period of quasi-stable thermonuclear burning in a compact configuration nearly at the whit…
The Impact of Nuclear Reaction Rate Uncertainties On The Evolution of Core-Collapse Supernova Progenitors
C. E. Fields, F. X. Timmes, R. Farmer +3
We explore properties of core-collapse supernova progenitors with respect to the composite uncertainties in the thermonuclear reaction rates by coupling the reaction rate probabili…
The Volumetric Rate of Superluminous Supernovae at z~1
S. Prajs, M. Sullivan, M. Smith +12
We present a measurement of the volumetric rate of superluminous supernovae (SLSNe) at z~1, measured using archival data from the first four years of the Canada-France-Hawaii Teles…
Rapidly Rising Transients in the Supernova - Superluminous Supernova Gap
Iair Arcavi, William M. Wolf, D. Andrew Howell +26
We present observations of four rapidly rising (t_{rise}~10d) transients with peak luminosities between those of supernovae (SNe) and superluminous SNe (M_{peak}~-20) - one discove…
Population of post-nova supersoft X-ray sources
Monika D. Soraisam, Marat Gilfanov, William M. Wolf +1
Novae undergo a supersoft X-ray phase of varying duration after the optical outburst. Such transient post-nova supersoft X-ray sources (SSSs) are the majority of the observed SSSs…
Photoionization Heating of Nova Ejecta by the Post-Outburst Supersoft Source
Timothy Cunningham, William M. Wolf, Lars Bildsten
The expanding ejecta from a classical nova remains hot enough () to be detected in thermal radio emission for up to years after the cessation of mass loss tri…
Identification of the Optical Counterpart of Fermi Black Widow Millisecond Pulsar PSR J1544+4937
Sumin Tang, David L. Kaplan, Sterl Phinney +10
We report the optical identification of the companion to the {\it Fermi} black widow millisecond pulsar PSR J1544+4937. We find a highly variable source on Keck LRIS images at the…
An Accreting White Dwarf near the Chandrasekhar Limit in the Andromeda Galaxy
Sumin Tang, Lars Bildsten, William M. Wolf +13
The iPTF detection of the most recent outburst of the recurrent nova system RX J0045.4+4154 in the Andromeda Galaxy has enabled the unprecedented study of a massive ($M>1.3\ M_\odo…
Hydrogen Burning on Accreting White Dwarfs: Stability, Recurrent Novae, and the Post-Novae Supersoft Source
William M. Wolf, Lars Bildsten, Jared Brooks +1
We examine the properties of white dwarfs (WDs) accreting hydrogen-rich matter in and near the stable burning regime of accretion rates as modeled by time-dependent calculations do…