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4 papers · 2 filters
Dwarf Galaxies and Globular Clusters
Michele Bellazzini
I briefly explore some relevant connections and differences between the evolutionary paths of dwarf galaxies and globular clusters.
No surviving evolved companions to the progenitor of supernova SN 1006
Jonay I. Gonzalez Hernandez, Pilar Ruiz-Lapuente, Hugo M. Tabernero +4
Type Ia supernovae are thought to occur as a white dwarf made of carbon and oxygen accretes sufficient mass to trigger a thermonuclear explosion. The accretion could occur sl…
H2O line mapping at high spatial and spectral resolution - Herschel observations of the VLA1623 outflow
P. Bjerkeli, R. Liseau, B. Larsson +12
Apart from being an important coolant, H2O is known to be a tracer of high-velocity molecular gas. Recent models predict relatively high abundances behind interstellar shockwaves.…
An extremely primitive halo star
E. Caffau, P. Bonifacio, P. François +11
The early Universe had a chemical composition consisting of hydrogen, helium and traces of lithium1, almost all other elements were created in stars and supernovae. The mass fracti…