Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Murphy, Jeremiah W."'
Autor:
Murphy, Jeremiah W., Barrientos, Andres F., Andrae, Rene, Guzman, Joseph, Williams, Benjamin F., Dalcanton, Julianne J., Koplitz, Brad
Stellar evolution theory restricted to single stars predicts a minimum mass for core-collapse supernovae (CCSNe) of around eight solar masses; this minimum mass corresponds to a maximum age of around 45 million years for the progenitor and the coeval
Externí odkaz:
http://arxiv.org/abs/2406.04075
Most massive stars end their lives with core collapse. However, it is not clear which explode as a Core-collapse Supernova (CCSN), leaving behind a neutron star and which collapse to black hole, aborting the explosion. One path to predict explodabili
Externí odkaz:
http://arxiv.org/abs/2311.02179
Autor:
Koplitz, Brad, Johnson, Jared, Williams, Benjamin F., Diaz-Rodriguez, Mariangelly, Murphy, Jeremiah W., Lazzarini, Margaret, Guzman, Joseph, Dalcanton, Julianne J., Dolphin, Andrew, Durbin, Meredith
Using resolved optical stellar photometry from the Panchromatic Hubble Andromeda Treasury Triangulum Extended Region (PHATTER) survey, we measured the star formation history (SFH) near the position of 85 supernova remnants (SNRs) in M33. We constrain
Externí odkaz:
http://arxiv.org/abs/2303.07318
One of the major challenges in Core-collapse Supernova (CCSN) theory is to predict which stars explode and which collapse to black holes. Gogilashvili and Murphy (2022) derived an analytic force explosion condition (FEC) and showed that the FEC is co
Externí odkaz:
http://arxiv.org/abs/2302.04890
Publikováno v:
Monthly Notices of The Royal Astronomical Society, Volume 515, Issue 2, September 2022, Pages 1610-1623
Understanding which stars explode leaving behind neutron stars and which stars collapse forming black holes remains a fundamental astrophysical problem. We derive an analytic explosion condition for spherically symmetric core-collapse supernovae. The
Externí odkaz:
http://arxiv.org/abs/2110.10173
Autor:
Koplitz, Brad, Johnson, Jared, Williams, Benjamin F., Long, Knox S., Blair, William P., Murphy, Jeremiah W., Dolphin, Andrew, Hillis, Tristan
We constrained the progenitor masses for 169 supernova remnants, 8 historically observed supernovae, and the black hole formation candidate in NGC 6946, finding that they are consistent with originating from a standard initial mass function. Addition
Externí odkaz:
http://arxiv.org/abs/2104.11118
Autor:
Díaz-Rodríguez, Mariangelly, Murphy, Jeremiah W., Williams, Benjamin F., Dalcanton, Julianne J., Dolphin, Andrew E.
We infer the progenitor mass distribution for 22 historic core-collapse supernovae (CCSNe) using a Bayesian hierarchical model. For this inference, we use the local star formation histories to estimate the age for each supernova (SN). These star form
Externí odkaz:
http://arxiv.org/abs/2101.11012
Autor:
Aghakhanloo, Mojgan, Murphy, Jeremiah W., Smith, Nathan, Parejko, John, Díaz-Rodríguez, Mariangelly, Drout, Maria R., Groh, Jose H., Guzman, Joseph, Stassun, Keivan G.
Using {\it Gaia} Early Data Release 3 (EDR3) parallaxes and Bayesian inference, we infer a parallax of the Westerlund 1 (Wd1) cluster. We find a parallax of $0.34\pm{0.05}$ mas corresponding to a distance of $2.8^{+0.7}_{-0.6}$ kpc. The new {\it Gaia
Externí odkaz:
http://arxiv.org/abs/2101.06285
Recent multi-dimensional simulations of core-collapse supernovae are producing successful explosions and explosion-energy predictions. In general, the explosion-energy evolution is monotonic and relatively smooth, suggesting a possible analytic solut
Externí odkaz:
http://arxiv.org/abs/2007.06087
Autor:
DuPont, Marcus, Murphy, Jeremiah W.
Mars lacks a substantial magnetic field; as a result, the solar wind ablates the Martian atmosphere, making the surface uninhabitable. Therefore, any terraforming attempt will require an artificial Martian magnetic shield. The fundamental challenge o
Externí odkaz:
http://arxiv.org/abs/2006.05546