no code implementations • 21 Jan 2021 • Xiangyun Zeng, XiaoFeng Wang, Ali Esamdin, Craig Pellegrino, WeiKang Zheng, Jujia Zhang, Jun Mo, Wenxiong Li, D. Andrew Howell, Alexei V. Filippenko, Han Lin, Thomas G. Brink, Edward A. Baron, Jamison Burke, James M. DerKacy, Curtis McCully, Daichi Hiramatsu, Griffin Hosseinzadeh, Benjamin T. Jeffers, Timothy W. Ross, Benjamin E. Stahl, Samantha Stegman, Stefano Valenti, Lifan Wang, Danfeng Xiang, Jicheng Zhang, Tianmeng Zhang
We present extensive, well-sampled optical and ultraviolet photometry and optical spectra of the Type Ia supernova (SN Ia) 2017hpa.
High Energy Astrophysical Phenomena Solar and Stellar Astrophysics
1 code implementation • 12 Oct 2020 • Keto D. Zhang, WeiKang Zheng, Thomas de Jaeger, Benjamin E. Stahl, Thomas G. Brink, Xuhui Han, Daniel Kasen, Ken J. Shen, Kevin Tang, Alexei V. Filippenko
In the two cases we consider, 35\% of SNe Ia are considered to be asymmetric in Case 1, and all SNe Ia are asymmetric in Case 2.
High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics
no code implementations • 1 Jul 1998 • Alexei V. Filippenko, Adam G. Riess
Low-redshift SNe Ia ($z \lesssim 0. 1$) demonstrate that (a) the Hubble expansion is linear, (b) $H_0 = 65 \pm 2$ (statistical) km s$^{-1}$ Mpc$^{-1}$, (c) the bulk motion of the Local Group is consistent with the COBE result, and (d) the properties of dust in other galaxies are similar to those of dust in the Milky Way.
astro-ph
