Zobrazeno 1 - 10
of 291
pro vyhledávání: '"WeiKang Zheng"'
Autor:
Hongwei Xi, Bo Peng, Lister Staveley-Smith, Bi-Qing For, Bin Liu, Ru-Rong Chen, Lei Yu, Dejian Ding, Wei-Jian Guo, Hu Zou, Suijian Xue, Jing Wang, Thomas G. Brink, WeiKang Zheng, Alexei V. Filippenko, Yi Yang, Jianyan Wei, Y. Sophia Dai, Zi-Jian Li, Zizhao He, Chengzi Jiang, Alexei Moiseev, Sergey Kotov
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 2, p L36 (2024)
Neutral hydrogen (H i ) is the primary component of the cool interstellar medium (ISM) and is the reservoir of fuel for star formation. Owing to the sensitivity of existing radio telescopes, our understanding of the evolution of the ISM in galaxies r
Externí odkaz:
https://doaj.org/article/87fa8a9a14ee4d4fa571ac5273e29b22
Autor:
Kareem El-Badry, Ken J. Shen, Vedant Chandra, Evan B. Bauer, Jim Fuller, Jay Strader, Laura Chomiuk, Rohan P. Naidu, Ilaria Caiazzo, Antonio C. Rodriguez, Pranav Nagarajan, Natsuko Yamaguchi, Zachary P. Vanderbosch, Benjamin R. Roulston, Jan van Roestel, Boris Gänsicke, Jiwon Jesse Han, Kevin B. Burdge, Alexei V. Filippenko, Thomas G. Brink, WeiKang Zheng
Publikováno v:
The Open Journal of Astrophysics, Vol 6 (2023)
We report a spectroscopic search for hypervelocity white dwarfs (WDs) that are runaways from Type Ia supernovae (SNe Ia) and related thermonuclear explosions. Candidates are selected from Gaia data with high tangential velocities and blue colors. We
Externí odkaz:
https://doaj.org/article/cfedf0b6e2dd453e82778a6c31af32e1
Autor:
Yize Dong, Stefano Valenti, Chris Ashall, Marc Williamson, David J. Sand, Schuyler D. Van Dyk, Alexei V. Filippenko, Saurabh W. Jha, Michael Lundquist, Maryam Modjaz, Jennifer E. Andrews, Jacob E. Jencson, Griffin Hosseinzadeh, Jeniveve Pearson, Lindsey A. Kwok, Teresa Boland, Eric Y. Hsiao, Nathan Smith, Nancy Elias-Rosa, Shubham Srivastav, Stephen Smartt, Michael Fulton, WeiKang Zheng, Thomas G. Brink, Melissa Shahbandeh, K. Azalee Bostroem, Emily Hoang, Daryl Janzen, Darshana Mehta, Nicolas Meza, Manisha Shrestha, Samuel Wyatt, Katie Auchettl, Christopher R. Burns, Joseph Farah, Lluís Galbany, Estefania Padilla Gonzalez, Joshua Haislip, Jason T. Hinkle, D. Andrew Howell, Thomas De Jaeger, Vladimir Kouprianov, Sahana Kumar, Jing Lu, Curtis McCully, Shane Moran, Nidia Morrell, Megan Newsome, Craig Pellegrino, Abigail Polin, Daniel E. Reichart, B. J. Shappee, Maximilian D. Stritzinger, Giacomo Terreran, M. A. Tucker
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 316 (2024)
We present optical and near-infrared (NIR) observations of SN 2022crv, a stripped-envelope supernova in NGC 3054, discovered within 12 hr of explosion by the Distance Less Than 40 Mpc Survey. We suggest that SN 2022crv is a transitional object on the
Externí odkaz:
https://doaj.org/article/e5e907cd48684455af1847402b5be629
Autor:
Zeyi Zhao, Jujia Zhang, Liping Li, Qian Zhai, Yongzhi Cai, Shubham Srivastav, Xiaofeng Wang, Han Lin, Yi Yang, Alexei V. Filippenko, Thomas G. Brink, WeiKang Zheng
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 155 (2024)
We present extensive observations and analysis of supernova (SN) SN 2021dbg, utilizing optical photometry and spectroscopy. For approximately 385 days following the explosion, SN 2021dbg exhibited remarkable luminosity, surpassing most Type II SNe (S
Externí odkaz:
https://doaj.org/article/0dcf24b8c826457b8d1db2627b2a8a81
Autor:
Jialian Liu, Xiaofeng Wang, Cristina Andrade, Pierre-Alexandre Duverne, Jujia Zhang, Liping Li, Zhenyu Wang, Felipe Navarete, Andrea Reguitti, Stefan Schuldt, Yongzhi Cai, Alexei V. Filippenko, Yi Yang, Thomas G. Brink, WeiKang Zheng, Ali Esamdin, Abdusamatjan Iskandar, Chunhai Bai, Jinzhong Liu, Xin Li, Maokai Hu, Gaici Li, Wenxiong Li, Xiaoran Ma, Shengyu Yan, Jun Mo, Christophe Adami, Dalya Akl, Sarah Antier, Eric Broens, Jean-Grégoire Ducoin, Eslam Elhosseiny, Thomas M. Esposito, Michael Freeberg, Priyadarshini Gokuldass, Patrice Hello, Sergey Karpov, Isabel Márquez, Martin Mašek, Oleksandra Pyshna, Yodgor Rajabov, Denis Saint-Gelais, Marc Serrau, Oleksii Sokoliuk, Ali Takey, Manasanun Tanasan, Damien Turpin
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 117 (2024)
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:
https://doaj.org/article/ecdf6dac411c4ed8be16942d8d214619
Autor:
Liang-Jun Chen, Xiang-Gao Wang, Qi Wang, Zi-Min Zhou, WeiKang Zheng, Yuan-Zhuo Chen, En-Wei Liang
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 158 (2024)
The afterglows of gamma-ray bursts are believed to have originated from a relativistic jet, which is driven by the merger of compact binary objects or the core collapse of massive stars. Some of their jets may consist of two components: a faster (but
Externí odkaz:
https://doaj.org/article/51b374e8f22c44fe969f60c6ed7396a6
Autor:
Nicolás Meza-Retamal, Yize Dong, K. Azalee Bostroem, Stefano Valenti, Lluís Galbany, Jeniveve Pearson, Griffin Hosseinzadeh, Jennifer E. Andrews, David J. Sand, Jacob E. Jencson, Daryl Janzen, Michael J. Lundquist, Emily T. Hoang, Samuel Wyatt, Peter J. Brown, D. Andrew Howell, Megan Newsome, Estefania Padilla Gonzalez, Craig Pellegrino, Giacomo Terreran, Vladimir Kouprianov, Daichi Hiramatsu, Saurabh W. Jha, Nathan Smith, Joshua Haislip, Daniel E. Reichart, Manisha Shrestha, F. Fabián Rosales-Ortega, Thomas G. Brink, Alexei V. Filippenko, WeiKang Zheng, Yi Yang
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 2, p 141 (2024)
We present comprehensive optical observations of SN 2021gmj, a Type II supernova (SN II) discovered within a day of explosion by the Distance Less Than 40 Mpc survey. Follow-up observations show that SN 2021gmj is a low-luminosity SN II (LL SN II), w
Externí odkaz:
https://doaj.org/article/48594d188ca94f9bb5ef9f55d63cf74e
Autor:
De-Feng Kong, Xiang-Gao Wang, WeiKang Zheng, Hou-Jun Lü, L. P. Xin, Da-Bin Lin, Jia-Xin Cao, Ming-Xuan Lu, B. Ren, Edgar P. Vidal, J. Y. Wei, En-Wei Liang, Alexei V. Filippenko
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 56 (2024)
We present optical photometry for the afterglow of GRB 221009A, in some respects the most extraordinary gamma-ray burst (GRB) ever observed. Good quality in the R -band light curve is obtained, covering 0.32–19.57 days since the Fermi-Gamma-Ray Bur
Externí odkaz:
https://doaj.org/article/2eaa0ae12b504b79888c1a0cd2ef43cc
Autor:
Xiang-Gao Wang, Ji-Wang Zhou, Zi-Min Zhou, WeiKang Zheng, Shuang-Xi Yi, Liang-Jun Chen, Yi-Ning Wei, Da-Bin Lin, En-Wei Liang, Alexei V. Filippenko
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 146 (2024)
We present early-time ground-based optical follow-up observations of GRB 180418A, which was discovered by both Swift/BAT and Fermi/GBM. Its broadband afterglow was well monitored by Swift/XRT and ground-based optical telescopes. The optical light cur
Externí odkaz:
https://doaj.org/article/1df6e46542d84aac972c1e44959f3b77
Autor:
Schuyler D. Van Dyk, Sundar Srinivasan, Jennifer E. Andrews, Monika Soraisam, Tamás Szalai, Steve B. Howell, Howard Isaacson, Thomas Matheson, Erik Petigura, Peter Scicluna, Andrew W. Stephens, Judah Van Zandt, WeiKang Zheng, Sang-Hyun Chun, Alexei V. Fillippenko
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 1, p 27 (2024)
We follow our first paper with an analysis of the ensemble of the extensive preexplosion ground- and space-based infrared observations of the red supergiant (RSG) progenitor candidate for the nearby core-collapse supernova SN 2023ixf in Messier 101,
Externí odkaz:
https://doaj.org/article/df5de7b31d0a4c1cba8c04b95c7c70ee