Space Based Gravitational Wave Astronomy Beyond LISA

Baker, John ; Barke, Simon F ; Bender, Peter L ; Berti, Emanuele ; Caldwell, Robert ; Conklin, John W ; Cornish, Neil ; Ferrara, Elizabeth C ; Holley-Bockelmann, Kelly ; Kamai, Brittany(California Institute of Technology (CalTech), Pasadena, CA, United States)

关键词: BLACK HOLES (ASTRONOMY);    COSMOLOGY;    ELECTROMAGNETIC SPECTRA;    GRAVITATIONAL WAVES;    LASER INTERFEROMETRY;    LISA (OBSERVATORY);    MASS RATIOS;    MISSION PLANNING;    NEUTRON STARS;    PHASE TRANSFORMATIONS;    RED SHIFT;    SIGNAL TO NOISE RATIOS;    STELLAR MASS;    STRING THEORY;   

RP-ID  :  GSFC-E-DAA-TN70893

学科分类：天体物理学

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来源: NASA Technical Reports Server

【 摘 要 】

The Laser Interferometer Space Antenna (LISA) will open three decades of gravitational wave(GW) spectrum between 0.1 and 100 mHz, the mHz band [1]. This band is expected to be the richest part of the GW spectrum, in types of sources, numbers of sources, signal-to-noise ratios and discovery potential. When LISA opens the low-frequency window of the gravitational wave spectrum,around 2034, the surge of gravitational-wave astronomy will strongly compel a subsequent mission to further explore the frequency bands of the GW spectrum that can only be accessed from space. The 2020's is the time to start developing technology and studying mission concepts for a large-scale mission to be launched in the 2040's. The mission concept would then be proposed to Astro2030. Only space-based missions can access the GW spectrum between 108 and 1 Hz because of the Earth's seismic noise. This white paper surveys the science in this band and mission concepts that could accomplish that science. The proposed small scale activity is a technology development program that would support a range of concepts and a mission concept study to choose a specific mission concept for Astro2030. In this white paper, we will refer to a generic GW mission beyond LISA as bLISA.