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GW Detection in Space: An Overview
2017-06-08  【 】【打印】【关闭

Institute of Theoretical Physics

Chinese Academy of Sciences

 Key Laboratory of Theoretical Physics

Seminar

Title

题目

GW Detection in Space: An Overview

Speaker

报告人

Wei-Tou Ni

Affiliation

所在单位

Department of Physics, Tsing Hua Univ., Hsinchu

Date

日期

2017-06-08 14:00

Venue

地点

ITP New Building 6420 room

Abstract

摘要

Gravitational wave (GW) detection in space is aimed at low frequency band (100 nHz – 100 mHz) and middle frequency band (100 mHz – 10 Hz). The science goals are the detection of GWs from (i) Supermassive Black Holes; (ii) Extreme-Mass-Ratio Black Hole Inspirals; (iii) Intermediate-Mass Black Holes; (iv) Galactic Compact Binaries and (v) Relic GW Background. In this talk, we present an overview on the sensitivity, orbit design, basic orbit configuration, angular resolution, orbit optimization, deployment, time-delay interferometry and payload concept of the current proposed GW detectors in space under study. The detector proposals under study have arm length ranging from 100 km to 1.3 × 10^9 km (8.6 AU) including (a) Solar orbiting detectors -- ASTROD-GW (ASTROD [Astrodynamical Space Test of Relativity using Optical Devices] optimized for GW detection), BBO (Big Bang Observer), DECIGO (DECi-hertz Interferometer GW Observatory), DECIGO-B, new LISA (Laser Interferometer Space Antenna), TAIJI (in Earth-like solar orbits), and Super-ASTROD (in Jupiter-like solar orbits); and (b) Earth orbiting detectors -- ASTROD-EM/LAGRANGE, GADFLI/GEOGRAWI/g-LISA, OMEGA and TIANQIN. Orbit design study and TDI (Time Delay Interferometry) study of LISA, TAIJI and ASTROD-GW will also be reported.

Contact person

所内联系人

Rong-Gen Cai
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