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3847. A hot and fast ultra-stripped supernova that likely formed a compact neutron star binaryTanja Petrushevska, 2018, original scientific article Abstract: Compact neutron star binary systems are produced from binary massive stars through stellar evolution involving up to two supernova explosions. The final stages in the formation of these systems have not been directly observed. We report the discovery of iPTF 14gqr (SN 2014ft), a type Ic supernova with a fast-evolving light curve indicating an extremely low ejecta mass (≈0.2 solar masses) and low kinetic energy (≈2 × 1050 ergs). Early photometry and spectroscopy reveal evidence of shock cooling of an extended helium-rich envelope, likely ejected in an intense pre-explosion mass-loss episode of the progenitor. Taken together, we interpret iPTF 14gqr as evidence for ultra-stripped supernovae that form neutron stars in compact binary systems. Keywords: supernova, neutron stars, gravitational waves Published in RUNG: 12.10.2018; Views: 3361; Downloads: 0 This document has many files! More... |
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3849. Nebesa pod Triglavom - samo z današnjimi Gabrščki, Bevki in Poberaji : Od dnevu državnostiZoran Božič, 2018, popular article Abstract: Govor ob državnem prazniku v Krajevni skupnost Solkan. S poudarkom na domoljubni prozi Ivana Cankarja (Kurent) in treh domoljubih v treh obdobjih slovenske zgodovine: Andreju Gabrščku, Francetu Bevku in Vladimirju Poberaju. Keywords: domoljubje, državnost, slovenstvo, Avstro-Ogrska, Bohinjska železnica, Umirajoči bog Triglav, druga svetovna vojna Published in RUNG: 08.10.2018; Views: 4013; Downloads: 141 Full text (127,67 KB) |
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