Radio imaging of the very-high-energy γ-ray emission region in the central engine of a radio galaxy

Acciari, V.; Aliu, E.; Arlen, T.; Bautista, M.; Beilicke, M.; Benbow, W.; Bradbury, S.; Buckley, J.; Bugaev, V.; Butt, Y.; Byrum, K.; Cannon, A.; Celik, O.; Cesarini, A.; Chow, Y.; Ciupik, L.; Cogan, P.; Cui, W.; Dickherber, R.; Fegan, S.; et al.

Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/51292

Scopus	Web of Science®	Altmetric
Citations
?	?

Type:	Journal article
Title:	Radio imaging of the very-high-energy γ-ray emission region in the central engine of a radio galaxy
Other Titles:	Radio imaging of the very-high-energy gamma-ray emission region in the central engine of a radio galaxy
Author:	Acciari, V. Aliu, E. Arlen, T. Bautista, M. Beilicke, M. Benbow, W. Bradbury, S. Buckley, J. Bugaev, V. Butt, Y. Byrum, K. Cannon, A. Celik, O. Cesarini, A. Chow, Y. Ciupik, L. Cogan, P. Cui, W. Dickherber, R. Fegan, S. et al.
Citation:	Science, 2009; 325(5939):444-448
Publisher:	American Association for the Advancement of Science
Issue Date:	2009
ISSN:	0036-8075 1095-9203
Statement of Responsibility:	The VERITAS Collaboration, the VLBA 43 GHz M87 Monitoring Team, the H.E.S.S. Collaboration, the MAGIC Collaboration
Abstract:	The accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particles to energies exceeding 10^12 electron Volts (eV) and are bright sources of very-high-energy (VHE) gamma-ray emission, it is not yet known where the VHE emission originates. Here we report on radio and VHE observations of the radio galaxy M87, revealing a period of extremely strong VHE gamma-ray flares accompanied by a strong increase of the radio flux from its nucleus. These results imply that charged particles are accelerated to very high energies in the immediate vicinity of the black hole.
Keywords:	VERITAS Collaboration VLBA 43 GHz M87 Monitoring Team H.E.S.S. Collaboration MAGIC Collaboration
Rights:	© 2009 American Association for the Advancement of Science. Submitted to Cornell University’s online archive www.arXiv.org in 2009 by Matthias Beilicke. Post-print sourced from www.arxiv.org
DOI:	10.1126/science.1175406
Published version:	http://arxiv.org/abs/0908.0511
Appears in Collections:	Aurora harvest Chemistry and Physics publications

Files in This Item:

File	Description	Size	Format
hdl_51292.pdf		2.76 MB	Publisher's post-print	View/Open

Show full item record

Adelaide Research & Scholarship