The Hubble constant from two sibling Type Ia supernovae in the nearby galaxy NGC 4414: SN 1974G and SN 2021J

Having two “sibling” Type Ia supernovae (SNe Ia) in the same galaxy offers additional advantages in reducing a variety of systematic errors involved in estimating the Hubble constant, H 0 . NGC 4414 is a nearby galaxy included in the Hubble Space Telescope Key Project to measure its distance using C...

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Veröffentlicht in:	Astronomy and astrophysics (Berlin) 2022-10, Vol.666, p.A13
Hauptverfasser:	Gallego-Cano, Eulalia, Izzo, Luca, Dominguez-Tagle, Carlos, Prada, Francisco, Pérez, Enrique, Khetan, Nandita, Jang, In Sung
Format:	Artikel
Sprache:	eng
Schlagworte:	Bayesian analysis Cepheid variables Curve fitting Error analysis Galaxies Hubble constant Hubble diagram Hubble Space Telescope Light curve Luminosity Red shift Space telescopes Supernovae Systematic errors
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