2023Natur.621..711C

Query : 2023Natur.621..711C

2023Natur.621..711C - Nature, 621, 711-715 (2023/September-0)

Precessing jet nozzle connecting to a spinning black hole in M87.

CUI Y., HADA K., KAWASHIMA T., KINO M., LIN W., MIZUNO Y., RO H., HONMA M., YI K., YU J., PARK J., JIANG W., SHEN Z., KRAVCHENKO E., ALGABA J.-C., CHENG X., CHO I., GIOVANNINI G., GIROLETTI M., JUNG T., LU R.-S., NIINUMA K., OH J., OHSUGA K., SAWADA-SATOH S., SOHN B.W., TAKAHASHI H.R., TAKAMURA M., TAZAKI F., TRIPPE S., WAJIMA K., AKIYAMA K., AN T., ASADA K., BUTTACCIO S., BYUN D.-Y., CUI L., HAGIWARA Y., HIROTA T., HODGSON J., KAWAGUCHI N., KIM J.-Y., LEE S.-S., LEE J.W., LEE J.A., MACCAFERRI G., MELIS A., MELNIKOV A., MIGONI C., OH S.-J., SUGIYAMA K., WANG X., ZHANG Y., CHEN Z., HWANG J.-Y., JUNG D.-K., KIM H.-R., KIM J.-S., KOBAYASHI H., LI B., LI G., LI X., LIU Z., LIU Q., LIU X., OH C.-S., OYAMA T., ROH D.-G., WANG J., WANG N., WANG S., XIA B., YAN H., YEOM J.-H., YONEKURA Y., YUAN J., ZHANG H., ZHAO R. and ZHONG W.

Abstract (from CDS):

The nearby radio galaxy M87 offers a unique opportunity to explore the connections between the central supermassive black hole and relativistic jets. Previous studies of the inner region of M87 revealed a wide opening angle for the jet originating near the black hole. The Event Horizon Telescope resolved the central radio source and found an asymmetric ring structure consistent with expectations from general relativity. With a baseline of 17 years of observations, there was a shift in the jet's transverse position, possibly arising from an 8- to 10-year quasi-periodicity. However, the origin of this sideways shift remains unclear. Here we report an analysis of radio observations over 22 years that suggests a period of about 11 years for the variation in the position angle of the jet. We infer that we are seeing a spinning black hole that induces the Lense-Thirring precession of a misaligned accretion disk. Similar jet precession may commonly occur in other active galactic nuclei but has been challenging to detect owing to the small magnitude and long period of the variation.

Abstract Copyright: 2023 The Author(s), under exclusive licence to Springer Nature Limited

Journal keyword(s):

Simbad objects: 4

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Number of rows : 4

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	PG 0851+202	BLL	08 54 48.8749846272	+20 06 30.639583620		15.649	15.146	15.446		~	2513	1
2	NAME M87 Jet	Rad	12 30 49.423	+12 23 28.04						~	315	1
3	M 87	AGN	12 30 49.42338414	+12 23 28.0436859	10.16	9.59	8.63		7.49	~	7815	3
4	SS 433	HXB	19 11 49.5647697480	+04 58 57.827127648		16.854	14.643			A7Ib	2253	4

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