Type Ia Supernovae and the Value of the Hubble Constant
نویسندگان
چکیده
منابع مشابه
Type Ia Supernovae and the Value of the Hubble Constant
The methodology involved in deriving the Hubble Constant via the calibration of the corrected peak luminosities of Type Ia supernovae (SNe) is reviewed. We first present a re-analysis of the CalánTololo (C-T) and Center for Astrophysics (CfA) Type Ia SN surveys. Bivariate linear least squares and quadratic boot-strapped fits in peak apparent magnitude and light curve shape are employed to corre...
متن کاملTYPE Ia SUPERNOVAE AND THE HUBBLE CONSTANT
The focus of this review is the work that has been done during the 1990s on using Type Ia supernovae (SNe Ia) to measure the Hubble constant (H0). SNe Ia are well suited for measuring H0. A straightforward maximum–light color criterion can weed out the minority of observed events that are either intrinsically subluminous or substantially extinguished by dust, leaving a majority subsample that h...
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We investigate how a different calibration of the Cepheid Period-Luminosity (PL) relation taking into account the metallicity corrections, affects the absolute magnitude calibration of Supernovae (SNe) Ia and, in turn, the determination of the Hubble constant H0. We exploit SN Ia light curves from literature and previously unpublished data, to build the MB – ∆m15(B) relation and we calibrate th...
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چکیده ندارد.
Lower limits on the Hubble Constant from models of Type Ia Supernovae
By coupling observations of type Ia supernovae with results obtained from the best available numerical models we constrain the Hubble constant, independently of any external calibrators. We find an absolute lower limit of H◦ > 50 km s Mpc. In addition, we construct a Hubble diagram with UVOIR light curves of 12 type Ia supernovae located in the Hubble flow, and when adopting the most likely val...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 2005
ISSN: 0074-1809
DOI: 10.1017/s0074180900216264