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相关论文: Consistent extinction model for type Ia supernovae…

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Motivated by the large observed diversity in the properties of extra-galactic extinction by dust, we re-analyse the Cepheid calibration used to infer the Hubble constant, $H_0$, from Type Ia supernovae, using Cepheid data in 19 Type Ia…

宇宙学与河外天体物理 · 物理学 2022-07-27 Edvard Mortsell , Ariel Goobar , Joel Johansson , Suhail Dhawan

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…

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

We reanalyse observations of type Ia supernovae (SNe) and Cepheids used in the local determination of the Hubble constant and find strong evidence that SN standardisation in the calibration sample (galaxies with observed Cepheids) require a…

宇宙学与河外天体物理 · 物理学 2024-08-15 Radosław Wojtak , Jens Hjorth

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

With this paper we continue the preparation for a forthcoming summary report of our experiment with the Hubble Space Telescope (HST) to determine the Hubble constant using type Ia supernovae as standard candles. Two problems are addressed.…

天体物理学 · 物理学 2009-02-16 A. Saha , F. Thim , G. A. Tammann , B. Reindl , A. Sandage

Recent determination of the Hubble constant via Cepheid-calibrated supernovae by \citet{riess_2.4_2016} (R16) find $\sim 3\sigma$ tension with inferences based on cosmic microwave background temperature and polarization measurements from…

宇宙学与河外天体物理 · 物理学 2018-04-04 Brent Follin , Lloyd Knox

In a recent paper, we investigated possible systematic uncertainties related to the Cepheid color-luminosity calibration method and their influence on the tension between the Hubble constant as inferred from distances to Type Ia supernovae…

宇宙学与河外天体物理 · 物理学 2023-01-03 Edvard Mortsell , Ariel Goobar , Joel Johansson , Suhail Dhawan

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 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

Recent observations of Type Ia supernovae (SNe) by SH0ES collaboration (R11 and R16) diverge from the value reported by recent CMBR observations utilising the Planck satellite and application of the $\Lambda CDM$ cosmological model by at…

宇宙学与河外天体物理 · 物理学 2023-04-26 Rahul Kumar Thakur , Harish Kumar , Shashikant Gupta , Dinkar Verma , Rahul Nigam

It is well-known that the peak brightness of the Type Ia supernovae calibrated with Cepheid distances can be used to determine the Hubble constant. The Cepheid distances to host galaxies of the calibrating supernovae are usually obtained…

天体物理学 · 物理学 2009-11-11 C. Ngeow , S. Kanbur

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

We develop a statistical method for using multicolor photometry to determine distances using Cepheid variables including the effects of temperature, extinction, and metallicity and apply it to UBVRIJHK photometry of 694 Cepheids in 17…

天体物理学 · 物理学 2009-10-30 C. S. Kochanek

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

Presently a ${>}3\sigma$ tension exists between values of the Hubble constant $H_0$ derived from analysis of fluctuations in the Cosmic Microwave Background by Planck, and local measurements of the expansion using calibrators of type Ia…

宇宙学与河外天体物理 · 物理学 2017-06-30 Bonnie R. Zhang , Michael J. Childress , Tamara M. Davis , Natallia V. Karpenka , Chris Lidman , Brian P. Schmidt , Mathew Smith

We report observations of two nearby Type Ia supernovae (SNe Ia) for which observations of Cepheid variables in the host galaxies have been obtained with the Hubble Space Telescope: SN 1994ae in NGC 3370 and SN 1998aq in NGC 3982. For NCG…

We present an analysis of the final data release of the Carnegie Supernova Project I, focusing on the absolute calibration of the luminosity-decline-rate relation for Type Ia supernovae (SNeIa) using new intrinsic color relations with…

This is the first of two papers reporting measurements from a program to determine the Hubble constant to 5% precision from a refurbished distance ladder. We present new observations of 110 Cepheid variables in the host galaxies of two…

We report observations of 240 Cepheid variables obtained with the Near Infrared Camera (NICMOS) through the F160W filter on the Hubble Space Telescope (HST). The Cepheids are distributed across six recent hosts of Type Ia supernovae (SNe…

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