Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Iskandar Abdusamatjan"'
Autor:
Liu, Jialian, Wang, Xiaofeng, Andrade, Cristina, Duverne, Pierre-Alexandre, Zhang, Jujia, Li, Liping, Wang, Zhenyu, Navarete, Felipe, Reguitti, Andrea, Schuldt, Stefan, Cai, Yongzhi, Filippenko, Alexei V., Yang, Yi, Brink, Thomas G., Zheng, WeiKang, Esamdin, Ali, Iskandar, Abdusamatjan, Bai, Chunhai, Liu, Jinzhong, Li, Xin, Hu, Maokai, Li, Gaici, Li, Wenxiong, Ma, Xiaoran, Yan, Shengyu, Mo, Jun, Adami, Christophe, Akl, Dalya, Antier, Sarah, Broens, Eric, Ducoin, Jean-Grégoire, Elhosseiny, Eslam, Esposito, Thomas M., Freeberg, Michael, Gokulass, Priya, Hello, Patrice, Karpov, Sergey, Márquez, Isabel, Mašek, Martin, Pyshna, Oleksandra, Rajabov, Yodgor, Saint-Gelais, Denis, Serrau, Marc, Sokoliuk, Oleksii, Takey, Ali, Tanasan, Manasanun, Turpin, Damien
We present extensive photometric and spectroscopic observations of the nearby Type Ia supernova (SN) 2023wrk at a distance of about 40 Mpc. The earliest detection of this SN can be traced back to a few hours after the explosion. Within the first few
Externí odkaz:
http://arxiv.org/abs/2407.15768
Autor:
Dong-Xiang Shen, Gang Li, Iskandar Abdusamatjan, Jian-Ning Fu, Chun-Hua Zhu, Jin-Long Yu, Yu Zhang, Guo-Liang Lü, Nan-Nan Zhai, Jin-Zhong Liu
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 2, p 123 (2023)
Magnetic hot stars refer to stars that have effective temperatures approximately in the range from 7000–50,000 K, and with large-scale globally organized magnetic fields. These magnetic fields exhibit strengths ranging from tens of Gauss to tens of
Externí odkaz:
https://doaj.org/article/32584fd9f22440e9b133610ddeaa7d56
Autor:
Liu, Cheng, Wang, Xiaofeng, Zhang, Xiaobing, Kovalev, Mikhail, Lin, Jie, Xi, Gaobo, Mo, Jun, Li, Gaici, Peng, Haowei, Li, Xin, Xia, Qiqi, Iskandar, Abdusamatjan, Zeng, Xiangyun, Wang, Letian, Zhu, Liying, Song, Xuan, Guo, Jincheng, Jiang, Xiaojun, Yan, Shengyu, Zhang, Jicheng
We present a comprehensive photometric and spectroscopic analysis of the short-period ($\sim$5.32 hours) and low-mass eclipsing binary TMTSJ0803 discovered by Tsinghua-Ma Huateng Telescope for Survey (TMTS). By fitting the light curves and radial vel
Externí odkaz:
http://arxiv.org/abs/2405.10595
Autor:
Guo, Jincheng, Chen, Yanhui, Yang, Yonghui, Wang, Xiaofeng, Lin, Jie, Ma, Xiao-Yu, Xi, Gaobo, Mo, Jun, Filippenko, Alexei V., Brink, Thomas G., Zong, Weikai, Yan, Huahui, Zhao, Jingkun, Zeng, Xiangyun, Chen, Zhihao, Esamdin, Ali, Guo, Fangzhou, Iskandar, Abdusamatjan, Jiang, Xiaojun, Li, Wenxiong, Liu, Cheng, Shi, Jianrong, Song, Xuan, Wang, Letian, Xiang, Danfeng, Yan, Shengyu, Zhang, Jicheng
The Tsinghua University-Ma Huateng Telescope for Survey (TMTS) has been constantly monitoring the northern sky since 2020 in search of rapidly variable stars. To find variable white dwarfs (WDs), the TMTS catalog is cross-matched with the WD catalog
Externí odkaz:
http://arxiv.org/abs/2401.14692
Autor:
Li, Gaici, Hu, Maokai, Li, Wenxiong, Yang, Yi, Wang, Xiaofeng, Yan, Shengyu, Hu, Lei, Zhang, Jujia, Mao, Yiming, Riise, Henrik, Gao, Xing, Sun, Tianrui, Liu, Jialian, Xiong, Dingrong, Wang, Lifan, Mo, Jun, Iskandar, Abdusamatjan, Xi, Gaobo, Xiang, Danfeng, Wang, Lingzhi, Sun, Guoyou, Zhang, Keming, Chen, Jian, Lin, Weili, Guo, Fangzhou, Liu, Qichun, Cai, Guangyao, Zhou, Wenjie, Zhao, Jingyuan, Chen, Jin, Zheng, Xin, Li, Keying, Zhang, Mi, Xu, Shijun, Lyu, Xiaodong, Castro-Tirado, A. J., Chufarin, Vasilii, Potapov, Nikolay, Ionov, Ivan, Korotkiy, Stanislav, Nazarov, Sergey, Sokolovsky, Kirill, Hamann, Norman, Herman, Eliot
Publikováno v:
Nature volume 627, pages 754-758 (2024)
Shock breakout emission is light that arises when a shockwave, generated by core-collapse explosion of a massive star, passes through its outer envelope. Hitherto, the earliest detection of such a signal was at several hours after the explosion, thou
Externí odkaz:
http://arxiv.org/abs/2311.14409
Autor:
Liu, Jialian, Wang, Xiaofeng, Filippenko, Alexei V., Brink, Thomas G., Yang, Yi, Zheng, Weikang, Sai, Hanna, Xi, Gaobo, Yan, Shengyu, Elias-Rosa, Nancy, Li, Wenxiong, Zeng, Xiangyun, Iskandar, Abdusamatjan
Late-time spectra of Type Ia supernovae (SNe Ia) are important in clarifying the physics of their explosions, as they provide key clues to the inner structure of the exploding white dwarfs. We examined late-time optical spectra of 36 SNe Ia, includin
Externí odkaz:
http://arxiv.org/abs/2309.05538
Autor:
Guo, Jincheng, Chen, Yanhui, Wang, Xiaofeng, Lin, Jie, Xi, Gaobo, Mo, Jun, Filippenko, Alexei V., Brink, Thomas, Ma, Xiao-Yu, Zong, Weikai, Yang, Yong, Zhao, Jingkun, Zeng, Xiangyun, Chen, Zhihao, Esamdin, Ali, Guo, Fangzhou, Iskandar, Abdusamatjan, Jiang, Xiaojun, Li, Wenxiong, Liu, Cheng, Shi, Jianrong, Song, Xuan, Wang, Letian, Xiang, Danfeng, Yan, Shengyu, Zhang, Jicheng, Yang, Yonghui
Tsinghua university-Ma Huateng Telescope for Survey (TMTS) aims to discover rapidly evolving transients by monitoring the northern sky. The TMTS catalog is cross-matched with the white dwarf (WD) catalog of Gaia EDR3, and light curves of more than a
Externí odkaz:
http://arxiv.org/abs/2305.11585
Autor:
Lin, Jie, Li, Chunqian, Wang, Weiyang, Xu, Heng, Jiang, Jinchen, Yang, Daoye, Yaqup, Shahidin, Iskandar, Abdusamatjan, Ma, Shuguo, Niu, Hubiao, Esamdin, Ali, Liu, Shuai, Ramsay, Gavin, Vines, Jose I., Shi, Jianrong, Xu, Renxin
We report the discovery of a dark companion to 2MASS J15274848+3536572 with an orbital period of 6.14 hr. Combining the radial velocity from LAMOST observations and modelling of the multiband light curve, one obtains a mass function of $\simeq 0.131~
Externí odkaz:
http://arxiv.org/abs/2210.11360
Autor:
Lin, Jie, Wu, Chengyuan, Wang, Xiaofeng, Németh, Péter, Xiong, Herang, Wu, Tao, Filippenko, Alexei, Cai, Yongzhi, Brink, Thomas, Yan, Shengyu, Zeng, Xiangyun, Luo, Yangpin, Xiang, Danfeng, Zhang, Jujia, Zheng, Weikang, Yang, Yi, Mo, Jun, Xi, Gaobo, Zhang, Jicheng, Iskandar, Abdusamatjan, Esamdin, Ali, Jiang, Xiaojun, Sai, Hanna, Wei, Zixuan, Chen, Liyang, Guo, Fangzhou, Chen, Zhihao, Li, Wenxiong, Lin, Weili, Lin, Han, Zhang, Xinghan
Blue large-amplitude pulsators (BLAPs) represent a new and rare class of hot pulsating stars with unusually large amplitudes and short periods. Up to now, only 24 confirmed BLAPs have been identified from more than one billion monitored stars, includ
Externí odkaz:
http://arxiv.org/abs/2209.06617
Autor:
Zeng, Xiangyun, Wang, Xiaofeng, Esamdin, Ali, Pellegrino, Craig, Burke, Jamison, Stahl, Benjamin E., Zheng, WeiKang, Filippenko, Alexei V., Howell, D. Andrew, Sand, D. J., Valenti, Stefano, Mo, Jun, Xi, Gaobo, Liu, Jialian, Zhang, Jujia, Li, Wenxiong, Iskandar, Abdusamatjan, Zhang, Mengfan, Lin, Han, Sai, Hanna, Xiang, Danfeng, Wei, Peng, Zhang, Tianmeng, Reichart, D. E., Brink, Thomas G., McCully, Curtis, Hiramatsu, Daichi, Hosseinzadeh, Griffin, Jeffers, Benjamin T., Ross, Timothy W., Stegman, Samantha, Wang, Lifan, Zhang, Jicheng, Ma, Shuo
We present extensive optical photometric and spectroscopic observations of the high-velocity (HV) Type Ia supernova (SN Ia) 2017fgc, covering the phase from $\sim$ 12 d before to $\sim 389$ d after maximum brightness. SN 2017fgc is similar to normal
Externí odkaz:
http://arxiv.org/abs/2106.12164