Astrophysics (index)

Supernova

(SN)
(stellar explosion larger than a nova)

A Supernova (SN) is a stellar explosion more energetic than an ordinary Nova. It is often briefly brighter than an entire galaxy, and fades away over a period of weeks or months. Energy emitted can be on the order of the Sun's entire lifetime. The explosion ejects most of the star's material at up to 10% of the velocity of light, sweeping up interstellar gas and Cosmic Dust, which is called a Supernova Remnant.

Types:

Supernova are thought to come from a collapse of the core in large stars (Core Collapse Supernova), or in a White Dwarf accreting enough matter that it collapses (Thermonuclear Supernova, Type Ia).

The absolute brightness of a Type Ia Supernova is thought to be determinable from its spectrum and fade time. These factors plus its apparent brightness are used to estimate distance to the supernova and thus to its Galaxy.


(stars,event type,transient)
http://en.wikipedia.org/wiki/Supernova

Referenced by:
Absorption Line
Abundances
All Sky Automated Survey for SuperNovae (ASAS-SN)
Astrocats
Asiago Supernova Catalog (B/SN)
Calcium-Rich Gap Transient
Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS)
Cassiopeia A
Cosmic Gamma Ray Background (CGB)
Chandrasekhar Limit
Core Collapse Supernova
Cosmic Dust
Cosmic Rays
Dark Energy
Eddington Luminosity
Ejection
Star Formation Feedback
FIRE Simulations
Foe
Gamma-Ray Burst (GRB)
Habitable Zone (HZ)
HI Supershell
Hydrodynamics
ITEP-SAI Supernova Light Curve Catalogue
Kilonova
Light Curve
Low-Surface-Brightness Galaxy (LSB Galaxy)
Large Synoptic Survey Telescope (LSST)
Crab Nebula (M1)
Messier 100 (M100)
Messier 74 (M74)
Milky Way Chemical Evolution
Nitrogen (N)
Nova
Nucleosynthesis
Pan-STARRS
PROMETHEUS/VERTEX
Palomar Transient Factory (PTF)
RT Instability
Silicon (Si)
Superluminous Supernova (SLSN)
SN 1987A (1987A)
SN 2014J
Standard Candle
Star Formation (SF)
Stellar Age Determination
Sulfur (S)
Three Dimensional Model
Transient Name Server (TNS)
Transient
Transient Astronomy
Turbulent Pressure
Type Ia Supernova
Virgo
WISeREP

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