The upgraded GMRT: opening new windows on the radio Universe

被引:234
作者
Gupta, Y. [1 ]
Ajithkumar, B. [1 ]
Kale, H. S. [1 ]
Nayak, S. [1 ]
Sabhapathy, S. [1 ]
Sureshkumar, S. [1 ]
Swami, R. V. [1 ]
Chengalur, J. N. [1 ]
Ghosh, S. K. [1 ]
Ishwara-Chandra, C. H. [1 ]
Joshi, B. C. [1 ]
Kanekar, N. [1 ]
Lal, D. V. [1 ]
Roy, S. [1 ]
机构
[1] Natl Ctr Radio Astrophys TIFR, Pune Univ Campus, Pune 411007, Maharashtra, India
来源
CURRENT SCIENCE | 2017年 / 113卷 / 04期
关键词
Radio telescope; upgrade; scientific potential; technical challenges; SINGLE-PULSE OBSERVATIONS; EMISSION; DISCOVERY; ASTRONOMY; ARRAY; MHZ;
D O I
10.18520/cs/v113/i04/707-714
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The Giant Metrewave Radio Telescope (GMRT) is today a frontline international facility for low-frequency radio astronomy, that has produced several exciting and important new results in the 15 years that it has been operational. To keep the GMRT competitive in the global arena in the future, a major upgrade of the observatory is nearing completion that will increase its sensitivity by up to three times and make it a more powerful and versatile facility. We describe the main goals of this upgrade, highlight the technical features and challenges, outline the science potential and update the current status of this venture.
引用
收藏
页码:707 / 714
页数:8
相关论文
共 61 条
[1]   Next Generation Digital Backends for the GMRT [J].
Ajithkumar, B. ;
Choudhari, S. C. ;
Buch, K. D. ;
Muley, M. V. ;
Shelton, G. J. ;
Reddy, S. H. ;
Kudale, S. ;
Roy, J. ;
Gupta, Y. .
RADIO AND ANTENNA DAYS OF THE INDIAN OCEAN (RADIO 2012), 2013, 44
[2]  
Ajithkumar B., 2014, ASI C SERIES, V13, P457
[3]  
Ananthakrishnan S., 1995, Journal of Astrophysics and Astronomy, V16, P427
[4]  
[Anonymous], ASI C SERI
[5]  
Bagde S. K., 2014, ASI C SERIES, V13, P449
[6]   Wideband feeds for the upgraded GMRT [J].
Bandari, Hanumanth Rao ;
Sankarasubramanian, G. ;
Kumar, A. Praveen .
RADIO AND ANTENNA DAYS OF THE INDIAN OCEAN (RADIO 2012), 2013, 44
[7]   DETECTION OF OFF-PULSE EMISSION FROM PSR B0525+21 AND PSR B2045-16 [J].
Basu, Rahul ;
Athreya, Ramana ;
Mitra, Dipanjan .
ASTROPHYSICAL JOURNAL, 2011, 728 (02)
[8]  
Beswick R., 2015, Advancing Astrophysics with the Square Kilometre Array (AASKA14), P70
[9]   Simultaneous single-pulse observations of radio pulsars V. On the broadband nature of the pulse nulling phenomenon in PSR B1133+16 [J].
Bhat, N. D. R. ;
Gupta, Y. ;
Kramer, M. ;
Karastergiou, A. ;
Lyne, A. G. ;
Johnston, S. .
ASTRONOMY & ASTROPHYSICS, 2007, 462 (01) :257-268
[10]   THE GMRT HIGH RESOLUTION SOUTHERN SKY SURVEY FOR PULSARS AND TRANSIENTS. I. SURVEY DESCRIPTION AND INITIAL DISCOVERIES [J].
Bhattacharyya, B. ;
Cooper, S. ;
Malenta, M. ;
Roy, J. ;
Chengalur, J. ;
Keith, M. ;
Kudale, S. ;
McLaughlin, M. ;
Ransom, S. M. ;
Ray, P. S. ;
Stappers, B. W. .
ASTROPHYSICAL JOURNAL, 2016, 817 (02)