Type IIb supernova

GPTKB entity

Statements (52)
Predicate Object
gptkbp:instance_of gptkb:Supernova
gptkbp:associated_with gptkb:Wolf-Rayet_stars
gptkbp:bomb_load neutrino-driven explosion
gptkbp:characterized_by hydrogen depletion
gptkbp:collaboration other astronomical phenomena
gptkbp:collapsing_core leads to supernova explosion
gptkbp:composed_of enriched in elements like iron and nickel
gptkbp:contribution cosmic ray production
gptkbp:cosmological_importance helps in understanding the universe's expansion
gptkbp:discovery observational astronomy
gptkbp:distance can be used as standard candles
gptkbp:emissions_standard produces intense light and heat
gptkbp:energy_release 10^51 ergs
gptkbp:first_appearance 1993 J
gptkbp:followed_by can be detected in radio wavelengths
gptkbp:has_spectral_type Type IIb spectrum
gptkbp:historical_significance contributed to the understanding of supernovae
https://www.w3.org/2000/01/rdf-schema#label Type IIb supernova
gptkbp:impact galactic chemical evolution
may have influenced Earth's atmosphere in the past
gptkbp:is_a_phenomenon_that gamma-ray bursts
gptkbp:is_observed_in various galaxies
gptkbp:light_curve_duration weeks to months
gptkbp:lighting gptkb:plateau
important for cosmology
brighter than Type II supernova
declines after peak
gptkbp:model core-collapse supernova models
informs about stellar mass loss.
gptkbp:notable_examples SN 1993 J
gptkbp:nucleosynthesis produces heavy elements
gptkbp:occurrence_rate 1 in 100 years per galaxy
gptkbp:occurs_in massive stars
gptkbp:power_source radiates energy across the electromagnetic spectrum
gptkbp:preserved_by neutron star or black hole
can be several kilometers in radius
gptkbp:progenitor_mass 8 to 20 solar masses
gptkbp:redshift can be used to measure distance
gptkbp:research gptkb:spectroscopy
documented since the 17th century
dust obscuration
collected from telescopes worldwide
gptkbp:research_focus stellar death processes
gptkbp:research_importance understanding stellar evolution
gptkbp:scientific_classification part of the broader Type II category
gptkbp:spectral_features hydrogen and helium lines
gptkbp:stellar_evolution_stage final stages of massive stars
gptkbp:theoretical_predictions models predict various outcomes
gptkbp:type stellar explosion
gptkbp:was_a_result_of core collapse
gptkbp:bfsParent gptkb:SN_2011dh
gptkbp:bfsLayer 6