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Very high energy gamma rays from the direction of Sagittarius A<SUP>*</SUP>

Aharonian, F.; Akhperjanian, A.G.; Aye, K.-M.; Bazer-Bachi, A.R.; Beilicke, M.; Benbow, W.; Berge, D.; Berghaus, P.; Bernlöhr, K.; Bolz, O.; Boisson, C.; Borgmeier, C.; Breitling, F.; Brown, A.M.; Bussons, Gordo J.; Chadwick, P.M.; Chitnis, V.R.; Chounet, L.-M.; Cornils, R.; Costamante, L.; Degrange, B.; Djannati-Ataï, A.; Drury, L. O'C.; Ergin, T.; Espigat, P.; Feinstein, F.; Fleury, P.; Fontaine, G.; Funk, S.; Gallant, Y.A.; Giebels, B.; Gillessen, S.; Goret, P.; Guy, J.; Hadjichristidis, C.; Hauser, M.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, J.A.; Hofmann, W.; Holleran, M.; Horns, D.; de Jager, O.C.; Jung, I.; Khélifi, B.; Komin, N.; Konopelko, A.; Latham, I.J.; Le Gallou, R.; Lemoine, M.; Lemière, A.; Leroy, N.; Lohse, T.; Marcowith, A.; Masterson, C.; McComb, T.J.L.; de Naurois, M.; Nolan, S.J.; Noutsos, A.; Orford, K.J.; Osborne, J.L.; Ouchrif, M.; Panter, M.; Pelletier, G.; Pita, S.; Pohl, M.; Pühlhofer, G.; Punch, M.; Raubenheimer, B.C.; Raue, M.; Raux, J.; Rayner, S....

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Authors

F. Aharonian

A.G. Akhperjanian

K.-M. Aye

A.R. Bazer-Bachi

M. Beilicke

W. Benbow

D. Berge

P. Berghaus

K. Bernlöhr

O. Bolz

C. Boisson

C. Borgmeier

F. Breitling

A.M. Brown

Gordo J. Bussons

V.R. Chitnis

L.-M. Chounet

R. Cornils

L. Costamante

B. Degrange

A. Djannati-Ataï

L. O'C. Drury

T. Ergin

P. Espigat

F. Feinstein

P. Fleury

G. Fontaine

S. Funk

Y.A. Gallant

B. Giebels

S. Gillessen

P. Goret

J. Guy

C. Hadjichristidis

M. Hauser

G. Heinzelmann

G. Henri

G. Hermann

J.A. Hinton

W. Hofmann

M. Holleran

D. Horns

O.C. de Jager

I. Jung

B. Khélifi

N. Komin

A. Konopelko

I.J. Latham

R. Le Gallou

M. Lemoine

A. Lemière

N. Leroy

T. Lohse

A. Marcowith

C. Masterson

T.J.L. McComb

M. de Naurois

A. Noutsos

K.J. Orford

M. Ouchrif

M. Panter

G. Pelletier

S. Pita

M. Pohl

G. Pühlhofer

M. Punch

B.C. Raubenheimer

M. Raue

J. Raux

S.M. Rayner

I. Redondo

A. Reimer

O. Reimer

J. Ripken

M. Rivoal

L. Rob

L. Rolland

G. Rowell

V. Sahakian

L. Saugé

S. Schlenker

R. Schlickeiser

C. Schuster

U. Schwanke

M. Siewert

H. Sol

R. Steenkamp

C. Stegmann

J.-P. Tavernet

C.G. Théoret

M. Tluczykont

D.J. van der Walt

G. Vasileiadis

P. Vincent

B. Visser

H.J. Völk

S. Wagner



Abstract

We report the detection of a point-like source of very high energy (VHE) -rays coincident within 1' of Sgr A *, obtained with the HESS array of Cherenkov telescopes. The -rays exhibit a power-law energy spectrum with a spectral index of and a flux above the 165 GeV threshold of m -2 s -1. The measured flux and spectrum differ substantially from recent results reported in particular by the CANGAROO collaboration.

Citation

Aharonian, F., Akhperjanian, A., Aye, K., Bazer-Bachi, A., Beilicke, M., Benbow, W., …Wagner, S. (2004). Very high energy gamma rays from the direction of Sagittarius A*. Astronomy & Astrophysics, 425(1), L13-L17. https://doi.org/10.1051/0004-6361%3A200400055

Journal Article Type Article
Publication Date Oct 1, 2004
Deposit Date May 29, 2008
Publicly Available Date May 29, 2008
Journal Astronomy and astrophysics.
Print ISSN 0004-6361
Electronic ISSN 1432-0746
Publisher EDP Sciences
Peer Reviewed Peer Reviewed
Volume 425
Issue 1
Pages L13-L17
DOI https://doi.org/10.1051/0004-6361%3A200400055
Keywords Gamma-rays, Observations, Galaxy centre.

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Copyright Statement
Reproduced with permission from Astronomy & Astrophysics, © ESO





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