Arid
DOI10.1088/1361-6382/ab3583
SAGE: finding IMBH in the black hole desert
Lacour, S.1; Vincent, F. H.1; Nowak, M.2; Le Tiec, A.1; Lapeyrere, V1; David, L.1; Bourget, P.3; Kellerer, A.3; Jani, K.4,5; Martino, J.6; Vinet, J-Y7; Godet, O.8; Straub, O.1; Woillez, J.3
通讯作者Lacour, S.
来源期刊CLASSICAL AND QUANTUM GRAVITY
ISSN0264-9381
EISSN1361-6382
出版年2019
卷号36期号:19
英文摘要SAGE (SagnAc interferometer for Gravitational wavE) is a project for a space observatory based on multiple 12-U CubeSats in geosynchronous equatorial orbit. The objective is a fast track mission which would fill the observational gap between LISA and ground based observatories. With albeit a lower sensitivity, it would allow early investigation of the nature and event rate of intermediate-mass black hole (IMBH) mergers, constraining our understanding of the universe formation by probing the building up of IMBH up to supermassive black holes (SMBH). Technically, the CubeSats would create a triangular Sagnac interferometer with 140.000 km roundtrip arm length, optimised to be sensitive to gravitational waves at frequencies between 10 mHz and 2 Hz. The nature of the Sagnac measurement makes it almost insensitive to position error, a feature enabling the use of spacecrafts in ballistic trajectories instead of perfect free fall. The light source and recombination units of the interferometer are based on compact fibered technologies without bulk optics. A peak sensitivity of 23 pm (root Hz)(-1) is expected at 1 Hz assuming a 200 mW internal laser source and 10-centimeter diameter apertures. Because of the absence of a test mass, the main limitation would come from the non-gravitational forces applied on the spacecrafts. However, conditionally upon our ability to partially post-process the effect of solar wind and solar pressure, SAGE would allow detection of gravitational waves with strains as low as a few 10(-19) within the 0.1 to 1 Hz range. Averaged over the entire sky, and including the antenna gain of the Sagnac interferometer, the SAGE observatory would sense equal mass black hole mergers in the 10(4) to 10(6) solar masses range up to a luminosity distance of 800 Mpc. Additionally, coalescence of stellar black holes (10M(circle dot)) around SMBH (IMBH) forming extreme (intermediate) mass ratio inspirals could be detected within a sphere of radius 200 Mpc.
英文关键词intermediary black holes gravitational waves detector geostationary satellites interferometry
类型Article
语种英语
国家France ; Germany ; USA
开放获取类型Green Submitted
收录类别SCI-E
WOS记录号WOS:000484509400005
WOS关键词HELIOSEISMOLOGY ; EVOLUTION ; MODELS ; VIRGO
WOS类目Astronomy & Astrophysics ; Quantum Science & Technology ; Physics, Multidisciplinary ; Physics, Particles & Fields
WOS研究方向Astronomy & Astrophysics ; Physics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/214897
作者单位1.Univ Paris Diderot, Sorbonne Univ, Univ PSL, CNRS,LESIA,Observ Paris, 5 Pl Jules Janssen, F-92195 Meudon, France;
2.Univ Paris Diderot, LUTH, Observ Paris, PSL Res Univ,CNRS,Sorbonne Paris Cite, F-92190 Meudon, France;
3.ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany;
4.Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA;
5.Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA;
6.Univ Paris Diderot, APC, CNRS, CEA,Irfu,Obs Paris,Sorbonne Paris Cite,IN2P3, Paris, France;
7.Univ Cote Azur, Artemis, Observ Cote Azur, CNRS, CS 34229, F-06304 Nice 4, France;
8.Univ Paul Sabatier, IRAP, CNRS, CNES, 9 Ave Colonel Roche, F-31028 Toulouse 4, France
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GB/T 7714
Lacour, S.,Vincent, F. H.,Nowak, M.,et al. SAGE: finding IMBH in the black hole desert[J],2019,36(19).
APA Lacour, S..,Vincent, F. H..,Nowak, M..,Le Tiec, A..,Lapeyrere, V.,...&Woillez, J..(2019).SAGE: finding IMBH in the black hole desert.CLASSICAL AND QUANTUM GRAVITY,36(19).
MLA Lacour, S.,et al."SAGE: finding IMBH in the black hole desert".CLASSICAL AND QUANTUM GRAVITY 36.19(2019).
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