Zobrazeno 1 - 10
of 326
pro vyhledávání: '"Sung Chul Yoon"'
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 63 (2023)
Previous numerical simulations of double-peaked Type IIb supernova (SN IIb) light curves have demonstrated that the radius and mass of the hydrogen-rich envelope of the progenitor star can significantly influence the brightness and timescale of the e
Externí odkaz:
https://doaj.org/article/173b9738966347119425dcfbe4b2016d
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 2, p 131 (2023)
The Cassiopeia A supernova remnant has a complex structure, manifesting the multidimensional nature of core-collapse supernova explosions. To further understand this, we carried out near-infrared multiobject spectroscopy on the ejecta knots located i
Externí odkaz:
https://doaj.org/article/1bc00544f9594b52b7e09f8cc7d66522
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 1, p 44 (2023)
Type Ib and Ic supernovae (SNe Ib/Ic) originate from hydrogen-deficient massive star progenitors, of which the exact properties are still much debated. Using SN data in the literature, we investigate the optical B − V color of SNe Ib/Ic at the V -b
Externí odkaz:
https://doaj.org/article/8b5eff7bef8a41a688959ac881b740b5
Autor:
Aravind P. Ravi, Jeonghee Rho, Sangwook Park, Seong Hyun Park, Sung-Chul Yoon, T. R. Geballe, Jozsef Vinkó, Samaporn Tinyanont, K. Azalee Bostroem, Jamison Burke, Daichi Hiramatsu, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Craig Pellegrino, Regis Cartier, Tyler Pritchard, Morten Andersen, Sergey Blinnikov, Yize Dong, Peter Blanchard, Charles D. Kilpatrick, Peter Hoeflich, Stefano Valenti, Alexei V. Filippenko, Nicholas B. Suntzeff, Ji Yeon Seok, R. Könyves-Tóth, Ryan J. Foley, Matthew R. Siebert, David O. Jones
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 1, p 14 (2023)
We present near-infrared (NIR) and optical observations of the Type Ic supernova (SN Ic) SN 2021krf obtained between days 13 and 259 at several ground-based telescopes. The NIR spectrum at day 68 exhibits a rising K -band continuum flux density longw
Externí odkaz:
https://doaj.org/article/3fdffd2e8ec947a2b9dd6a692a757a03
Autor:
Gu Lim, Myungshin Im, Gregory S. H. Paek, Sung-Chul Yoon, Changsu Choi, Sophia Kim, J. Craig Wheeler, Benjamin P. Thomas, Jozsef Vinkó, Dohyeong Kim, Jinguk Seo, Wonseok Kang, Taewoo Kim, Hyun-Il Sung, Yonggi Kim, Joh-Na Yoon, Haeun Kim, Jeongmook Kim, Hana Bae, Shuhrat Ehgamberdiev, Otabek Burhonov, Davron Mirzaqulov
Publikováno v:
The Astrophysical Journal, Vol 949, Iss 1, p 33 (2023)
The progenitor system of Type Ia supernovae (SNe Ia) is expected to be a close binary system consisting of a carbon/oxygen white dwarf (WD) and a nondegenerate star or another WD. Here, we present results from high-cadence monitoring observations of
Externí odkaz:
https://doaj.org/article/05277b6147094df89715e582c5b44834
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 2, p 158 (2023)
We report on the result of He abundance analysis of dense circumstellar clumps in the young supernova remnant Cassiopeia A. These clumps, which are called quasi-sta tionary flocculi (QSFs), are known from previous optical studies to be enriched in He
Externí odkaz:
https://doaj.org/article/fe30b7fefcc04ab5ad5584db03c89539
Autor:
Seong Hyun Park, Jeonghee Rho, Sung-Chul Yoon, Gutierrez, Claudia, Ravi, Aravind P., Carter, Regis, Geballe, Tom R., Hoeflich, Peter, Tinyanont, Samaporn, Bostroem, K. Azalee, Farah, Joseph, Howell, D. Andrew, McCully, Curtis, Newsome, Megan, Gonzalez, Estefania Padilla, Pellegrino, Craig, Terreran, Giacomo, Yijung Kang
Publikováno v:
ASP Conference Series; 2024, Vol. 536, p165-168, 4p
Autor:
Yongje Jeong, Sung-Chul Yoon
Publikováno v:
ASP Conference Series; 2024, Vol. 536, p105-109, 5p
Autor:
Moo-Keon Jung, Sung-Chul Yoon
Publikováno v:
ASP Conference Series; 2024, Vol. 536, p41-46, 6p