The Progenitor Systems of Classical Novae in M31 [PDF]
The Astrophysical JournalWe present the first characterization of the statistical relationship between a large sample of novae in M31 and their progenitor stellar populations in the form of a delay time distribution.
C. S. Abelson +6 more
doaj +3 more sources
Search for 22Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes [PDF]
Nature Communications, 2023 Classical novae are thermonuclear explosions in stellar binary systems, and important sources of 26Al and 22Na. While γ rays from the decay of the former radioisotope have been observed throughout the Galaxy, 22Na remains untraceable.
Chloé Fougères +61 more
doaj +2 more sources
The Astrophysical JournalApproximately 30%–40% of classical novae generate dust between 20 and 100 days following the eruption. However, there has yet to be a definitive identification of presolar stardust grains originating from classical novae.
Lauren Ward +5 more
doaj +2 more sources
Binary orbits as the driver of γ-ray emission and mass ejection in classical novae [PDF]
Nature, 2014 Classical novae are the most common astrophysical thermonuclear explosions, occurring on the surfaces of white dwarf stars accreting gas from companions in binary star systems.
Laura Chomiuk +2 more
exaly +3 more sources
Fermi LAT Gamma-ray Detections of Classical Novae V1369 Centauri 2013 and V5668 Sagittarii 2015 [PDF]
, 2016 We report the Fermi Large Area Telescope (LAT) detections of high-energy (>100 MeV) gamma-ray emission from two recent optically bright classical novae, V1369 Centauri 2013 and V5668 Sagittarii 2015.
Cheung, C. C. +11 more
core +3 more sources
Fermi-LAT detections of the classical novae V1723 Sco and V6598 Sgr in a multi-wavelength context
Astronomy & AstrophysicsContext. Numerous classical novae have been observed to emit γ-rays (E > 100 MeV) detected by the Fermi-LAT. The prevailing hypothesis attributes this emission to the interaction of accelerated particles within shocks in the nova ejecta.
Fauverge P. +10 more
doaj +2 more sources
On Presolar Stardust Grains from CO Classical Novae [PDF]
, 2018 About 30% to 40% of classical novae produce dust 20-100 days after the outburst, but no presolar stardust grains from classical novae have been unambiguously identified yet.
Downen, Lori +4 more
core +6 more sources
Classical novae in the ASKAP pilot surveys [PDF]
Publications Astronomical Society of Australia, 2023 We present a systematic search for radio counterparts of novae using the Australian Square Kilometer Array Pathfinder (ASKAP). Our search used the Rapid ASKAP Continuum Survey, which covered the entire sky south of declination $+41^{\circ}$ ( $\sim$
A. Gulati +9 more
semanticscholar +1 more source
Binary Interaction Dominates Mass Ejection in Classical Novae [PDF]
Astrophysical Journal, 2022 Recent observations suggest our understanding of mass loss in classical novae is incomplete, motivating a new theoretical examination of the physical processes responsible for nova mass ejection.
K. Shen, E. Quataert
semanticscholar +1 more source
Nucleosynthesis constraints through gamma-ray line measurements from classical novae. A hierarchical model for the ejecta of 22Na and 7Be [PDF]
Astronomy & Astrophysics, 2021 Context. Classical novae are among the most frequent transient events in the Milky Way, and key agents of ongoing nucleosynthesis. Despite their large numbers, they have never been observed in soft γ-ray emission.
T. Siegert +4 more
semanticscholar +2 more sources