Gravitational Wave Astronomy With TianQin

TL;DR

TianQin is a planned space-based gravitational wave observatory set for launch in the 2030s, aiming to detect and analyze gravitational waves from diverse cosmic sources to enhance our understanding of the universe's evolution.

Contribution

This paper provides an overview of TianQin's capabilities, potential sources, and the scientific impact of its gravitational wave observations.

Findings

Identification of key gravitational wave sources for TianQin

Expected insights into cosmic structure formation

Challenges in detecting and interpreting signals

Abstract

The opening of the gravitational wave window has significantly enhanced our capacity to explore the universe's most extreme and dynamic sector. In the mHz frequency range, a diverse range of compact objects, from the most massive black holes at the farthest reaches of the Universe to the lightest white dwarfs in our cosmic backyard, generate a complex and dynamic symphony of gravitational wave signals. Once recorded by gravitational wave detectors, these unique fingerprints have the potential to decipher the birth and growth of cosmic structures over a wide range of scales, from stellar binaries and stellar clusters to galaxies and large-scale structures. The TianQin space-borne gravitational wave mission is scheduled for launch in the 2030s, with an operational lifespan of five years. It will facilitate pivotal insights into the history of our universe. This document presents a concise overview of the detectable sources of TianQin, outlining their characteristics, the challenges they present, and the expected impact of the TianQin observatory on our understanding of them.