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7 papers · 2 filters
The physical properties of T Pyx as measured by MUSE I. The geometrical distribution of the ejecta and the distance to the remnant
L. Izzo, L. Pasquini, E. Aydi +8
T Pyx is one of the most enigmatic recurrent novae, and it has been proposed as a potential Galactic type-Ia supernova progenitor. Using spatially-resolved data obtained with MUSE,…
Scalable stellar evolution forecasting: Deep learning emulation vs. hierarchical nearest neighbor interpolation
K. Maltsev, F. R. N. Schneider, F. K. Roepke +5
Many astrophysical applications require efficient yet reliable forecasts of stellar evolution tracks. One example is population synthesis, which generates forward predictions of mo…
A Luminous Red Supergiant and Dusty Long-period Variable Progenitor for SN 2023ixf
Jacob E. Jencson, Jeniveve Pearson, Emma R. Beasor +23
We analyze pre-explosion near- and mid-infrared (IR) imaging of the site of SN 2023ixf in the nearby spiral galaxy M101 and characterize the candidate progenitor star. The star dis…
BU Canis Minoris -- the Most Compact Known Flat Doubly Eclipsing Quadruple System
Theodor Pribulla, Tamás Borkovits, Rahul Jayaraman +25
We have found that the 2+2 quadruple star system BU CMi is currently the most compact quadruple system known, with an extremely short outer period of only 121 days. The previous re…
No Surviving SN Ia Companion In SNR 0509-67.5: Stellar Population Characterization and Comparison To Models
Joshua V. Shields, Prasiddha Arunachalam, Wolfgang Kerzendorf +4
The community agrees that Type Ia supernovae arise from Carbon/Oxygen white dwarfs undergoing thermonuclear runaway. However, the full progenitor system and the process that prompt…
Shock shaping? Nebular Spectroscopy of Nova V906 Carinae
É. J. Harvey, E. Aydi, L. Izzo +7
V906 Carinae was one of the best observed novae of recent times. It was a prolific dust producer and harboured shocks in the early evolving ejecta outflow. Here, we take a close lo…