Zobrazeno 1 - 10
of 360
pro vyhledávání: '"Ansari, Réza"'
Autor:
Yu, Zijie, Deng, Furen, Sun, Shijie, Niu, Chenhui, Li, Jixia, Wu, Fengquan, Wang, Wei-Yang, Wang, Yougang, Zuo, Shifan, Shu, Lin, Hao, Jie, Liu, Xiaohui, Ansari, Reza, Pen, Ue-Li, Stebbins, Albert, Timbie, Peter, Chen, Xuelei
This paper presents the design, calibration, and survey strategy of the Fast Radio Burst (FRB) digital backend and its real-time data processing pipeline employed in the Tianlai Cylinder Pathfinder array. The array, consisting of three parallel cylin
Externí odkaz:
http://arxiv.org/abs/2406.15740
Autor:
Kwak, Juhun, Podczerwinski, John, Timbie, Peter, Ansari, Réza, Marriner, John, Stebbins, Albert, Wu, Fengquan, Cao, Haotian, Chen, Xuelei, He, Kai, Li, Jixia, Sun, Shijie, Zhu, Jiacong
The visibilities measured by radio astronomical interferometers include non-astronomical correlated signals that arise from the local environment of the array. These correlated signals are especially important in compact arrays such as those under de
Externí odkaz:
http://arxiv.org/abs/2311.03494
Autor:
Li, Yichao, Wang, Yougang, Deng, Furen, Yang, Wenxiu, Hu, Wenkai, Liu, Diyang, Zhao, Xinyang, Zuo, Shifan, Shu, Shuanghao, Li, Jixia, Timbie, Peter, Ansari, Reza, Perdereau, Olivier, Stebbins, Albert, Wolz, Laura, Wu, Fengquan, Zhang, Xin, Chen, Xuelei
This work presents the initial results of the drift-scan observation for the neutral hydrogen (HI) intensity mapping survey with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The data analyzed in this work were collected in night
Externí odkaz:
http://arxiv.org/abs/2305.06405
Autor:
Yu, Zijie, Deng, Furen, Sun, Shijie, Niu, Chenhui, Li, Jixia, Wu, Fengquan, Wang, Wei-Yang, Wang, Yougang, Feng, Hui, Shu, Lin, Hao, Jie, Ansari, Reza, Stebbins, Albert, Chen, Xuelei
Publikováno v:
Research in Astronomy and Astrophysics, 22, 125007 (2022)
The Tianlai Dish Pathfinder array is a radio interferometer array consisting of 16 six meter dish antennas. The original digital backend integration time is at the seconds level, designed for HI intensity mapping experiment. A new digital backend wit
Externí odkaz:
http://arxiv.org/abs/2210.03272
Autor:
Perdereau, Olivier, Ansari, Réza, Stebbins, Albert, Timbie, Peter T., Chen, Xuelei, Wu, Fengquan, Li, Jixia, Marriner, John P., Tucker, Gregory S., Cong, Yanping, Das, Santanu, Li, Yichao, Liu, Yingfeng, Magneville, Christophe, Peterson, Jeffrey B., Phan, Anh, Robinthal, Lily, Sun, Shijie, Wang, Yougang, Wu, Yanlin, Xu, Yidong, Yu, Kaifeng, Yu, Zijie, Zhang, Jiao, Zhang, Juyong, Zuo, Shifan
We present the science case for surveys with the Tianlai dish array interferometer tuned to the $\left[ 1300, 1400 \right] \mathrm{MHz}$ frequency range. Starting from a realistic generation of mock visibility data according to the survey strategy, w
Externí odkaz:
http://arxiv.org/abs/2205.06086
Autor:
Sun, Shijie, Li, Jixia, Wu, Fengquan, Timbie, Peter, Ansari, Reza, Geng, Jingchao, Shi, Huli, Stebbins, Albert, Wang, Yougang, Zhang, Juyong, Chen, Xuelei
Publikováno v:
RAA 22:065020 (2022)
A great challenge for 21 cm intensity mapping experiments is the strong foreground radiation which is orders of magnitude brighter than the 21cm signal. Removal of the foreground takes advantage of the fact that its frequency spectrum is smooth while
Externí odkaz:
http://arxiv.org/abs/2204.08632
Autor:
Ansari, Reza
21cm Intensity Mapping (IM) has been proposed about 15 years ago as a cost effective method to carry out cosmological surveys and to map the 3D distribution of matter in the universe, over a large range of post EoR redshifts, from z=0 to z=6. Since t
Externí odkaz:
http://arxiv.org/abs/2203.17039
Publikováno v:
In Journal of Energy Storage 15 October 2024 100 Part A
Autor:
Saberi, Maedeh, Moradi, Alireza, Ansari, Reza, Hassanzadeh-Aghdam, Mohammad Kazem, Jamali, Jamaloddin
Publikováno v:
In Composites Part A October 2024 185
Publikováno v:
In Composites Part A October 2024 185