Science with the Daksha high energy transients mission

Varun Bhalerao, Disha Sawant, Archana Pai, Shriharsh Tendulkar, Santosh Vadawale, Dipankar Bhattacharya, Vikram Rana, Hitesh Kumar L. Adalja, G. C. Anupama, Suman Bala, Smaranika Banerjee, Judhajeet Basu, Hrishikesh Belatikar, Paz Beniamini, Mahesh Bhaganagare, Ankush Bhaskar, Soumyadeep Bhattacharjee, Sukanta Bose, Brad Cenko, Mehul Vijay ChandaGulab Dewangan, Vishal Dixit, Anirban Dutta, Priyanka Gawade, Abhijeet Ghodgaonkar, Shiv Kumar Goyal, Suresh Gunasekaran, Manikantan Hemanth, Kenta Hotokezaka, Shabnam Iyyani, P. J. Guruprasad, Mansi Kasliwal, Jayprakash G. Koyande, Salil Kulkarni, A. P.K. Kutty, Tinkal Ladiya, Suddhasatta Mahapatra, Deepak Marla, Sujay Mate, Advait Mehla, N. P.S. Mithun, Surhud More, Rakesh Mote, Dipanjan Mukherjee, Sanjoli Narang, Shyama Narendranath, Ayush Nema, Sudhanshu Nimbalkar, Samaya Nissanke, Sourav Palit, Jinaykumar Patel, Arpit Patel, Biswajit Paul, Priya Pradeep, Prabhu Ramachandran, Kinjal Roy, B. S.Bharath Saiguhan, Joseph Saji, M. Saleem, Divita Saraogi, Parth Sastry, M. Shanmugam, Piyush Sharma, Amit Shetye, Nishant Singh, Shreeya Singh, Akshat Singhal, S. Sreekumar, Srividhya Sridhar, Rahul Srinivasan, Siddharth Tallur, Neeraj K. Tiwari, Amrutha Lakshmi Vadladi, C. S. Vaishnava, Sandeep Vishwakarma, Gaurav Waratkar

Research output: Contribution to journalArticlepeer-review

Abstract

We present the science case for the proposed Daksha high energy transients mission. Daksha will comprise of two satellites covering the entire sky from 1 keV to >1 MeV. The primary objectives of the mission are to discover and characterize electromagnetic counterparts to gravitational wave source; and to study Gamma Ray Bursts (GRBs). Daksha is a versatile all-sky monitor that can address a wide variety of science cases. With its broadband spectral response, high sensitivity, and continuous all-sky coverage, it will discover fainter and rarer sources than any other existing or proposed mission. Daksha can make key strides in GRB research with polarization studies, prompt soft spectroscopy, and fine time-resolved spectral studies. Daksha will provide continuous monitoring of X-ray pulsars. It will detect magnetar outbursts and high energy counterparts to Fast Radio Bursts. Using Earth occultation to measure source fluxes, the two satellites together will obtain daily flux measurements of bright hard X-ray sources including active galactic nuclei, X-ray binaries, and slow transients like Novae. Correlation studies between the two satellites can be used to probe primordial black holes through lensing. Daksha will have a set of detectors continuously pointing towards the Sun, providing excellent hard X-ray monitoring data. Closer to home, the high sensitivity and time resolution of Daksha can be leveraged for the characterization of Terrestrial Gamma-ray Flashes.

Original languageEnglish
Article number23
JournalExperimental Astronomy
Volume57
Issue number3
DOIs
StatePublished - Jun 2024

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive licence to Springer Nature B.V. 2024.

Keywords

  • Gamma-ray bursts (629)
  • Gravitational wave astronomy (675)
  • Space telescopes (1547)
  • Time domain astronomy (2109)

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