Open Supernova Catalog objects subsample characteristics

International Conference on Particle Physics and Astrophysics

物理学;天文学

Khyzhniak, E.V.^1 ; Arkhangelskaja, I.V.^1 ; Lyapin, A.R.^2

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

Moscow Institute of Physics and Technology (State University), Institutskiy pereulok 9, Dolgoprudny, Moscow Region

141701, Russia^2

关键词: Astrophysical objects;    Cosmological measurements;    Gamma ray bursts;    Project analysis;    Redshift distribution;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012004/pdf
DOI  :  10.1088/1742-6596/798/1/012004

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The homogeneous subsample characteristics understanding is necessary for the investigation of any astrophysical objects redshift distribution, for example, gamma-ray bursts. The type Ia supernovae considered as a homogeneous subsample because of suggestion that these luminous events might be used as standard candles for cosmological measurements occurs since the earliest studies of supernovae in 1938. The parameters of our Metagalaxy Ω and Λ were determine due sample of Ia supernovae from the Supernova Cosmology Project analysis in 1998. Since then more than 4000 supernovae were added. The results of the redshift distribution analysis for supernova from the two catalogues (Asiago Supernova Catalogue and Open Supernova Catalog) are presented in this work. The ability to use an analyzed dataset as homogeneous subsample also is discussed.