干旱区生态环境知识资源中心(Arid): SAGE: finding IMBH in the black hole desert

Arid

DOI	10.1088/1361-6382/ab3583
	SAGE: finding IMBH in the black hole desert
	Lacour, S.1; Vincent, F. H.1; Nowak, M.2; Le Tiec, A.1; Lapeyrere, V 1; David, L.1; Bourget, P.3; Kellerer, A.3; Jani, K.4,5; Martino, J.6; Vinet, J-Y 7; Godet, O.8; Straub, O.1; Woillez, J.3
通讯作者	Lacour, S.
来源期刊	CLASSICAL AND QUANTUM GRAVITY
ISSN	0264-9381
EISSN	1361-6382
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
推荐引用方式 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).