Daksha: on alert for high energy transients

IF 2.7 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Experimental Astronomy Pub Date : 2024-06-11 DOI:10.1007/s10686-024-09926-y

Varun Bhalerao, Santosh Vadawale, Shriharsh Tendulkar, Dipankar Bhattacharya, Vikram Rana, Hitesh Kumar L. Adalja, Hrishikesh Belatikar, Mahesh Bhaganagare, Gulab Dewangan, Abhijeet Ghodgaonkar, Shiv Kumar Goyal, Suresh Gunasekaran, Guruprasad P J, Jayprakash G. Koyande, Salil Kulkarni, APK Kutty, Tinkal Ladiya, Suddhasatta Mahapatra, Deepak Marla, Sujay Mate, N.P.S. Mithun, Rakesh Mote, Sanjoli Narang, Ayush Nema, Sudhanshu Nimbalkar, Archana Pai, Sourav Palit, Arpit Patel, Jinaykumar Patel, Priya Pradeep, Prabhu Ramachandran, B.S. Bharath Saiguhan, Divita Saraogi, Disha Sawant, 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

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Abstract

We present Daksha, a proposed high energy transients mission for the study of electromagnetic counterparts of gravitational wave sources, and gamma ray bursts. Daksha will comprise of two satellites in low earth equatorial orbits, on opposite sides of the Earth. Each satellite will carry three types of detectors to cover the entire sky in an energy range from 1 keV to \(>1\) MeV. Any transients detected on-board will be announced publicly within minutes of discovery. All photon data will be downloaded in ground station passes to obtain source positions, spectra, and light curves. In addition, Daksha will address a wide range of science cases including monitoring X-ray pulsars, studies of magnetars, solar flares, searches for fast radio burst counterparts, routine monitoring of bright persistent high energy sources, terrestrial gamma-ray flashes, and probing primordial black hole abundances through lensing. In this paper, we discuss the technical capabilities of Daksha, while the detailed science case is discussed in a separate paper.

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达喀尔：警惕高能瞬变

我们提出的达喀尔沙是一项拟议的高能瞬变任务，用于研究引力波源的电磁对应物和伽马射线暴。Daksha 将由两颗卫星组成，分别位于地球两侧的低地球赤道轨道上。每颗卫星将携带三种类型的探测器，覆盖整个天空，能量范围从 1 keV 到 \(>1\) MeV。卫星上探测到的任何瞬变都将在发现后几分钟内公开宣布。所有光子数据都将通过地面站下载，以获得源位置、光谱和光曲线。此外，"达喀尔沙 "号还将处理广泛的科学案例，包括监测 X 射线脉冲星、研究磁星、太阳耀斑、寻找快速射电暴对应物、对明亮的持续高能源进行常规监测、地面伽马射线闪光，以及通过透镜探测原始黑洞的丰度。在本文中，我们将讨论达喀尔沙的技术能力，而详细的科学案例将在另一篇论文中讨论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Experimental Astronomy 地学天文-天文与天体物理

CiteScore

5.30

自引率

3.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Many new instruments for observing astronomical objects at a variety of wavelengths have been and are continually being developed. Furthermore, a vast amount of effort is being put into the development of new techniques for data analysis in order to cope with great streams of data collected by these instruments. Experimental Astronomy acts as a medium for the publication of papers of contemporary scientific interest on astrophysical instrumentation and methods necessary for the conduct of astronomy at all wavelength fields. Experimental Astronomy publishes full-length articles, research letters and reviews on developments in detection techniques, instruments, and data analysis and image processing techniques. Occasional special issues are published, giving an in-depth presentation of the instrumentation and/or analysis connected with specific projects, such as satellite experiments or ground-based telescopes, or of specialized techniques.