Recalibration of the Hubble constant
E911975
Recalibration of the Hubble constant is a landmark astrophysical study by Allan R. Sandage that refined the value of the universe’s expansion rate using improved distance measurements to galaxies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Recalibration of the Hubble constant canonical | 1 |
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysical study
ⓘ
scientific paper ⓘ |
| aimsTo |
reduce uncertainties in the cosmic distance scale
ⓘ
refine the value of the Hubble constant ⓘ |
| author | Allan R. Sandage NERFINISHED ⓘ |
| contribution |
corrected earlier overestimates of the Hubble constant
ⓘ
helped establish a modern value for the Hubble constant ⓘ provided a more accurate estimate of the universe’s expansion rate ⓘ |
| describedAs | landmark astrophysical study ⓘ |
| field |
cosmology
ⓘ
extragalactic astronomy ⓘ observational astronomy ⓘ |
| focusesOn |
distance scale of the universe
ⓘ
universe expansion rate ⓘ |
| genre | peer‑reviewed research article ⓘ |
| hasImpactOn |
cosmological distance ladder
ⓘ
estimates of the age of the universe ⓘ modern cosmological models ⓘ |
| influencedBy |
Edwin Hubble’s original measurements
ⓘ
better calibration of standard candles ⓘ improvements in photometric techniques ⓘ |
| language | English ⓘ |
| mainSubject | Hubble constant NERFINISHED ⓘ |
| partOf |
efforts to resolve discrepancies in the Hubble constant
ⓘ
historical development of the cosmic distance scale ⓘ |
| relatesTo |
Hubble–Lemaître law
NERFINISHED
ⓘ
cosmic expansion ⓘ |
| studies | relationship between galaxy distances and recession velocities ⓘ |
| topic |
calibration of extragalactic distance indicators
ⓘ
precision measurement of cosmological parameters ⓘ systematic errors in distance measurements ⓘ |
| usesMethod |
Cepheid variable stars
NERFINISHED
ⓘ
galaxy distance indicators ⓘ improved distance measurements to galaxies ⓘ standard candles ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Allan R. Sandage