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相关论文: A New Method for the Determination of the Hubble P…

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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 ($H_0$). SNe Ia are well suited for measuring $H_0$. A straightforward maximum-light color…

天体物理学 · 物理学 2009-10-30 D. Branch

A sample of 35 SNe Ia with good to excellent photometry in B and V, minimum internal absorption, and 1200 < v < \approx 30000 km/s is compiled from the literature. As far as their spectra are known they are all Branch-normal. For 29 of the…

天体物理学 · 物理学 2009-02-16 B. R. Parodi , A. Saha , A. Sandage , G. A. Tammann

In this paper, we make a comprehensive determination of the Hubble constant $H_0$ by using two parameters - the B-V color and the rate of decline $\Delta m_{15}$ - to simultaneously standardize the luminosities of all nearby…

天体物理学 · 物理学 2009-10-31 R. Tripp , D. Branch

The Hubble diagrams in B, V, and I of a complete sample of 35 SNeIa with (B-V) < 0.06 and 1200 < v < 30000 kms^{-1} have a scatter of only 0.1 mag, after small corrections are applied for differences in decline rate Delta m_{15} and color…

天体物理学 · 物理学 2007-05-23 G. A. Tammann , A. Sandage , A. Saha

An interesting way to calibrate the absolute magnitudes of remote Type Ia supernovae (SNe Ia) that are well out in the Hubble flow, and thus determine the value of the Hubble constant, H_0, has been introduced by van den Bergh. His approach…

天体物理学 · 物理学 2007-05-23 David Branch , Adam Fisher , E. Baron , Peter Nugent

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 Calan-Tololo (C-T) and Center for Astrophysics…

天体物理学 · 物理学 2007-05-23 Brad K. Gibson , Chris B. Brook

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…

We present a measurement of the Hubble constant ($H_0$) using type Ia supernova (SNe Ia) in the near-infrared (NIR) from the recently updated sample of SNe Ia in nearby galaxies with distances measured via Cepheid period-luminosity…

We present a new calibration of the peak absolute magnitude of SNe Type Ia based on the Surface Brightness Fluctuations (SBF) method, aimed at measuring the value of the Hubble constant. We build a sample of calibrating anchors consisting…

The Calan/Tololo supernova survey has discovered ~30 Type Ia supernovae out to z~0.1. Using BVI data for these objects and nearby SNe Ia, we have shown that there exists a significant dispersion in the intrinsic luminosities of these…

天体物理学 · 物理学 2016-08-15 Mario Hamuy , M. M. Phillips , Nicholas B. Suntzeff , Robert A. Schommer , José Maza , R. Avilés

Type Ia supernovae (SNe Ia) provide us with a unique tool for measuring extragalactic distances and determining cosmological parameters. As a result, the precise and effective calibration for peak luminosities of SNe Ia becomes extremely…

天体物理学 · 物理学 2016-08-30 Xiaofeng Wang , Lifan Wang , Xu Zhou , Yuqing Lou , Zongwei Li

Physical models of Type Ia supernovae (SN Ia) that do not depend on secondary calibrators have indicated that the Hubble Constant must be about 65 km/s/Mpc for well over a decade with the range of uncertainty shrinking with the…

天体物理学 · 物理学 2007-05-23 J. C. Wheeler , Peter Hoeflich

The most precise local measurements of $H_0$ rely on observations of Type Ia supernovae (SNe Ia) coupled with Cepheid distances to SN Ia host galaxies. Recent results have shown tension comparing $H_0$ to the value inferred from CMB…

宇宙学与河外天体物理 · 物理学 2018-01-26 Suhail Dhawan , Saurabh W. Jha , Bruno Leibundgut

A sample of 109 type Ia supernovae (SNe Ia) with recession velocity < 30,000 km s^{-1}, is compiled from published SNe Ia light curves to explore the expansion rate of the local Universe. Based on the color parameter delta C_{12} and the…

天体物理学 · 物理学 2010-04-30 Xiaofeng Wang , Lifan Wang , Reynald Pain , Xu Zhou , Zongwei Li

Type Ia supernovae (SNe) are the best standard candles available today in spite of an appreciable intrinsic variation of their luminosities at maximum phase, and of probably non-uniform progenitors. For an unbiased use of type Ia SNe as…

天体物理学 · 物理学 2007-05-23 Tom Richtler , Georg Drenkhahn

Recent studies suggest spectroscopic differences explain a fraction of the variation in Type Ia supernova (SN Ia) luminosities after light-curve/color standardization. In this work, (i) we empirically characterize the variations of…

The most stringent local measurement of the Hubble-Lema\^itre constant from Cepheid-calibrated Type Ia supernovae (SNe~Ia) differs from the value inferred via the cosmic microwave background radiation ({\it Planck}$+\Lambda$CDM) by $\sim…

宇宙学与河外天体物理 · 物理学 2022-06-29 T. de Jaeger , L. Galbany , A. G. Riess , B. E. Stahl , B. J. Shappee , A. V. Filippenko , W. Zheng

Progressive increases in the precision of the Hubble-constant measurement via Cepheid-calibrated Type Ia supernovae (SNe Ia) have shown a discrepancy of $\sim 4.4\sigma$ with the current value inferred from Planck satellite measurements of…

宇宙学与河外天体物理 · 物理学 2020-07-01 T. de Jaeger , B. E. Stahl , W. Zheng , A. V. Filippenko , A. G. Riess , L. Galbany

This is the fifth and final summary paper of our 15 year program using the Hubble Space Telescope (HST) to determine the Hubble constant using Type Ia supernovae, calibrated with Cepheid variables in nearby galaxies that hosted them.…

天体物理学 · 物理学 2008-11-26 A. Sandage , G. A. Tammann , A. Saha , B. Reindl , F. D. Macchetto , N. Panagia
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