AST-789intermediate

Type Ia Supernovae & the Distance Ladder: Observation, Measurement & Evidence

Type Ia supernovae extend the distance ladder far beyond Cepheid reach because they are enormously luminous. The ladder measures the local Hubble constant and tests consistency with values inferred from early-universe observations.

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Type Ia Supernovae & the Distance Ladder: Observation, Measurement & Evidence

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AST-788Type Ia Supernovae & the Distance Ladder: Physical Mechanisms→

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AST-790Type Ia Supernovae & the Distance Ladder: Advanced Connections→

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Type Ia supernovae extend the distance ladder far beyond Cepheid reach because they are enormously luminous.

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Once a supernova class is standardized and its absolute luminosity calibrated, observed flux gives luminosity distance.

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