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Related papers: Supernovae type Ia: non-standard candles of the Un…

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We present data from the Supernova Cosmology Project for five high redshift Type Ia supernovae (SNe Ia) that were obtained using the NICMOS infrared camera on the Hubble Space Telescope. We add two SNe from this sample to a rest-frame…

Type Ia Supernovae (SNe Ia) are powerful standardizable candles for constraining cosmological models and provided the first evidence of the accelerated expansion of the universe. Their precision derives from empirical correlations, now…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-17 B. M. Rose , D. Rubin , A. Cikota , S. E. Deustua , S. Dixon , A. Fruchter , D. O. Jones , A. G. Riess , D. M. Scolnic

Type Ia Supernovae (SNe Ia) are widely used as standard candles to probe the Universe. However, how these fierce explosions are produced itself is still a highly debated issue. There are mainly two popular models for SNe Ia, i.e. the…

High Energy Astrophysical Phenomena · Physics 2020-09-24 Ze-Cheng Zou , Xiao-Long Zhou , Yong-Feng Huang

The second data release of Type Ia supernovae (SNe Ia) observed by the Zwicky Transient Facility has provided a homogeneous sample of 3628 SNe Ia with photometric and spectral information. This unprecedented sample size enables us to better…

The progenitors of Type Ia supernovae (SNe Ia) have not been identified. Though they are no longer fashionable we investigate the consequences if a significant number of SNe Ia were edge-lit detonations (ELDs) of carbon/oxygen white dwarfs…

We study the effect of environment on the properties of type Ia supernovae by analyzing the integrated spectra of 57 host galaxies. Integrated spectra of galaxies best represent the global properties of the host and can be used to directly…

Astrophysics · Physics 2007-05-23 P. M. Garnavich , J. Gallagher

We have analyzed multi-band light curves of 328 intermediate redshift (0.05 <= z < 0.24) type Ia supernovae (SNe Ia) observed by the Sloan Digital Sky Survey-II Supernova Survey (SDSS-II SN Survey). The multi-band light curves were…

We compare two Type Ia supernova (SN Ia) samples that are drawn from a spectroscopically confirmed SN Ia sample: a host-selected sample in which SNe Ia are restricted to those that have a spectroscopic redshift from the host; and a broader,…

Cosmology and Nongalactic Astrophysics · Physics 2017-02-08 Syed A Uddin , Jeremy Mould , Chris Lidman , Vanina Ruhlmann-Kleider , Delphine Hardin

We introduce a metallicity dependence of Type Ia supernova (SN Ia) rate into the Galactic and cosmic chemical evolution models. In our SN Ia progenitor scenario, the accreting white dwarf (WD) blows a strong wind to reach the Chandrasekhar…

Astrophysics · Physics 2009-10-30 Chiaki Kobayashi , Takuji Tsujimoto , Ken'ich Nomoto , Izumi Hachisu , Mariko Kato

We have measured the rest-frame B,V, and I-band light curves of a high-redshift type Ia supernova (SN Ia), SN 1999Q (z=0.46), using HST and ground-based near-infrared detectors. A goal of this study is the measurement of the color excess,…

Type Ia supernovae (SNe Ia) are thought to be thermonuclear explosion of white dwarfs (WDs). Their progenitors are not well understood. One popular scenario is the double-degenerate (DD) scenario, which attributes SNe Ia to WD-WD binary…

High Energy Astrophysical Phenomena · Physics 2018-10-17 Kanji Mori , Michael A. Famiano , Toshitaka Kajino , Motohiko Kusakabe , Xiaodong Tang

The most direct and strongest evidence for the presence of dark energy is provided by the measurement of galaxy distances using SNe Ia. This result is based on the assumption that the corrected brightness of SN Ia through the empirical…

Astrophysics of Galaxies · Physics 2020-02-05 Yijung Kang , Young-Wook Lee , Young-Lo Kim , Chul Chung , Chang Hee Ree

Type Ia supernovae are key tools for measuring distances on a cosmic scale. They are generally thought to be the thermonuclear explosion of an accreting white dwarf in a close binary system. The nature of the mass donor is still uncertain.…

Type Ia supernovae (SNe Ia) play a crucial role as standardizable candles in measurements of the Hubble constant and dark energy. Increasing evidence points towards multiple possible explosion channels as the origin of normal SNe Ia, with…

High Energy Astrophysical Phenomena · Physics 2022-06-30 Vishal Tiwari , Or Graur , Robert Fisher , Ivo Seitenzahl , Shing-Chi Leung , Ken'ichi Nomoto , Hagai Binyamin Perets , Ken Shen

We improve estimates of stellar mass and mass-weighted average age of Type Ia supernova (SN Ia) host galaxies by combining UV and near-IR photometry with optical photometry in our analysis. Using 206 SNe Ia drawn from the full three-year…

Type Ia supernovae (SNe Ia) play an important role in the study of cosmic evolution, especially in cosmology. There are several progenitor models for SNe Ia proposed in the past years. In this paper, by considering the effect of accretion…

Solar and Stellar Astrophysics · Physics 2010-03-25 Bo Wang , Zhanwen Han

Models for Type Ia Supernovae (SNe Ia) are reviewed. It is shown that there are strong reasons to believe that most SNe Ia represent thermonuclear disruptions of C-O white dwarfs, when these white dwarfs reach the Chandrasekhar limit and…

Astrophysics · Physics 2007-05-23 Mario Livio

Type Ia supernovae (SNe Ia) exhibit a wide diversity of peak luminosities and light curve shapes: the faintest SNe Ia are 10 times less luminous and evolve more rapidly than the brightest SNe Ia. Their differing characteristics also extend…

High Energy Astrophysical Phenomena · Physics 2017-12-27 Ken J. Shen , Silvia Toonen , Or Graur