Results 141 to 150 of about 7,025,957 (218)

Cosmology Constraints from Type Ia Supernova Simulations of the Nancy Grace Roman Space Telescope Strategy Recommended by the High-Latitude Time Domain Survey Definition Committee

The Astrophysical Journal
Within the next few years, the upcoming Nancy Grace Roman Space Telescope will be gathering data for the High-Latitude Time Domain Survey (HLTDS) that will be used to significantly improve the Type Ia supernova measurement of the dark energy equation of ...
Richard Kessler, Rebekah Hounsell, Bhavin Joshi, David Rubin, Masao Sako, Rebecca Chen, Vivian Miranda, Benjamin M. Rose   +7 more
doaj   +1 more source

Various Topics in Type Ia Supernovae [PDF]

, 2019
This work takes two approaches to increasing our understanding of type Ia supernovae. The first part uses observations to study their spectral evolution and diversity. The second part uses modeling to investigate a potential progenitor.
Jenks, Malia
core  

Direct analysis of type Ia supernovae spectra.

, 2000
This work describes how to use and modify the highly parameterized spectrum synthesis code (SYNNEW).
Fisher, Adam Keith.
core  

Searching for Type Ia Supernovae in the Dark Energy Spectroscopic Instrument

The Astrophysical Journal
With the development of large-scale photometric surveys, an increasing number of supernova candidates are being discovered, leading to a rapidly growing demand for supernova spectra.
Xiaoyu Zhuang, Song Ran, Dezheng Meng, Weiyu Ding, Ranfang Zheng, Yao Yao, Zheyu Lin, Bingxue Fu, Fujia Li, Zelin Xu, Jie Song, Xu Kong   +11 more
doaj   +1 more source

Uncovering a population of gravitational lens galaxies with magnified standard candle SN Zwicky. [PDF]

Nat Astron, 2023
Goobar A, Johansson J, Schulze S, Arendse N, Carracedo AS, Dhawan S, Mörtsell E, Fremling C, Yan L, Perley D, Sollerman J, Joseph R, Hinds KR, Meynardie W, Andreoni I, Bellm E, Bloom J, Collett TE, Drake A, Graham M, Kasliwal M, Kulkarni SR, Lemon C, Miller AA, Neill JD, Nordin J, Pierel J, Richard J, Riddle R, Rigault M, Rusholme B, Sharma Y, Stein R, Stewart G, Townsend A, Vinko J, Wheeler JC, Wold A.   +37 more
europepmc   +1 more source

Progenitors of Type Ia Supernovae

, 2011
: Type Ia supernovae are important, but mysterious cosmological tools. Their standard brightnesses have enabled cosmologists to measure extreme distances and to discover dark energy.

core  

A helium-burning white dwarf binary as a supersoft X-ray source. [PDF]

Nature, 2023
Greiner J, Maitra C, Haberl F, Willer R, Burgess JM, Langer N, Bodensteiner J, Buckley DAH, Monageng IM, Udalski A, Ritter H, Werner K, Maggi P, Jayaraman R, Vanderspek R.   +14 more
europepmc   +1 more source

Type Ia Supernovae [PDF]

Proceedings of 10th Symposium on Nuclei in the Cosmos — PoS(NIC X), 2009
openaire   +1 more source

K-corrections and Extinction Corrections for Type Ia Supernovae

, 2007
The measurement of the cosmological parameters from Type Ia supernovae hinges on our ability to compare nearby and distant supernovae accurately. Here we present an advance on a method for performing generalized K-corrections for Type Ia supernovae ...
Peter Nugent, Saul Perlmutter, Alex Kim
core  

Accurate determination of chemical abundances near a supermassive black hole. [PDF]

Nat Astron
XRISM Collaboration.
europepmc   +1 more source