English
Related papers

Related papers: Comparing the light curves of simulated Type Ia Su…

200 papers

Using data from the Sloan Digital Sky Supernova Survey-II, we measure the rate of Type Ia Supernovae (SNe Ia) as a function of galaxy properties at intermediate redshift. A sample of 342 SNe Ia with 0.05<z<0.25 is constructed. Using…

We derive the rates of Type Ia supernovae (SNIa) over a wide range of redshifts using a complete sample from the IfA Deep Survey. This sample of more than 100 SNIa is the largest set ever collected from a single survey, and therefore…

Astrophysics · Physics 2009-11-13 Brian J. Barris , John L. Tonry

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…

Astrophysics · Physics 2016-08-30 Xiaofeng Wang , Lifan Wang , Xu Zhou , Yuqing Lou , Zongwei Li

We present detailed investigation of a specific $i$-band light-curve feature in Type Ia supernovae (SNe Ia) using the rapid cadence and high signal-to-noise ratio light-curves obtained by the Carnegie Supernova Project. The feature is…

We study how future Type-Ia supernovae (SNIa) standard candles detected by the Vera C. Rubin Observatory (LSST) can constrain some cosmological models. We use a realistic three-year SNIa simulated dataset generated by the LSST Dark Energy…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-25 Rahul Shah , Ayan Mitra , Purba Mukherjee , Barun Pal , Supratik Pal

Detailed quantitative spectroscopy of Type Ia supernovae (SNe~Ia) provides crucial information needed to minimize systematic effects in both ongoing SNe Ia observational programs such as the Nearby Supernova Factory, ESSENCE, and the…

We generate bolometric light curves for a variety of type Ia supernova models at late times, simulating gamma-ray and positron transport for various assumptions about the magnetic field and ionization of the ejecta. These calculated light…

Astrophysics · Physics 2009-10-31 P. A. Milne , L. -S. The , M. D. Leising

We report results from the Supernova Photometric Classification Challenge (SNPCC), a publicly released mix of simulated supernovae (SNe), with types (Ia, Ibc, and II) selected in proportion to their expected rate. The simulation was…

We reconstruct the expansion history of the Universe using type Ia supernovae (SN Ia) in a manner independent of any cosmological model assumptions. To do so, we implement a non-parametric iterative smoothing method on the Joint Light-curve…

Cosmology and Nongalactic Astrophysics · Physics 2020-08-12 Hanwool Koo , Arman Shafieloo , Ryan E. Keeley , Benjamin L'Huillier

Type IIP supernovae (SNe IIP) mark the explosive death of red supergiants (RSGs), evolved massive stars with an extended hydrogen envelope. They are the most common supernova type and allow for benchmarking of supernova explosion models by…

High Energy Astrophysical Phenomena · Physics 2023-08-02 Shuai Zha , Bernhard Müller , Amy Weir , Alexander Heger

Type Ia supernovae (SNe Ia) are powerful tools for measuring the expansion history of the universe, but the impact of dust around SNe Ia remains unknown and is a critical systematic uncertainty. One way to improve our empirical description…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-14 Benjamin M. Rose , Brodie Popovic , Dan Scolnic , Dillon Brout

Context. Spectroscopic analyses to interpret the spectra of the brightest supernovae from the UV to the near-IR provide a powerful tool with great astrophysical potential for the determination of the physical state of the ejecta, their…

Solar and Stellar Astrophysics · Physics 2015-06-16 A. W. A. Pauldrach , T. L. Hoffmann , P. J. N. Hultzsch

The nearby, bright, almost completely unreddened Type Ia supernova 2011fe in M101 provides a unique opportunity to test both the precision and the accuracy of the extragalactic distances derived from SNe Ia light curve fitters. We apply the…

The revolutionary discovery of dark energy and accelerating cosmic expansion was made with just 42 type Ia supernovae (SNe Ia) in 1999. Since then, large synoptic surveys, e.g., Dark Energy Survey (DES), have observed thousands more SNe Ia…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-10 Helen Qu

Type Ia supernovae (SNe Ia) are considered standardizable candles and are therefore important probes of the universe's expansion history and cosmic distances. In comparison to the optical and IR photometric observations, NIR light curves of…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-04 Jagriti Gaba , Rahul Kumar Thakur , Dinkar Verma , Naresh Sharma , Shashikant Gupta

We present volumetric rates and luminosity functions (LFs) of Type Ia supernovae (SNe Ia) from the All-Sky Automated Survey for Supernovae (ASAS-SN), covering the 11-year period from 2014 to 2024. By combining the 2014--2017 $V$-band sample…

Type Ia supernovae (SNe Ia) are thermonuclear exploding stars that can be used to put constraints on the nature of our universe. One challenge with population analyses of SNe Ia is Malmquist bias, where we preferentially observe the…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-24 Benjamin M. Boyd , Matthew Grayling , Stephen Thorp , Kaisey S. Mandel

Following up on earlier work on this topic (Reinecke et al. 1999, A&A 347, pp. 724 and 739), we present an improved set of numerical models for simulations of white dwarfs exploding as Type Ia supernovae (SNe Ia). Two-dimensional…

Astrophysics · Physics 2009-11-07 M. Reinecke , W. Hillebrandt , J. C. Niemeyer

Type Ia supernovae (SNae Ia), standardisable candles that allow tracing the expansion history of the Universe, are instrumental in constraining cosmological parameters, particularly dark energy. State-of-the-art likelihood-based analyses…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-14 Konstantin Karchev , Roberto Trotta , Christoph Weniger

Spectroscopy is an important tool for providing insights into the structure of core-collapse supernova explosions. We use the Monte Carlo radiative transfer code ARTIS to compute synthetic spectra and light curves based on a two-dimensional…

Solar and Stellar Astrophysics · Physics 2023-05-30 Thomas Maunder , Bernhard Müller , Fionntan Callan , Stuart Sim , Alexander Heger
‹ Prev 1 8 9 10 Next ›