H. Abdalla
A search for very high-energy flares from the microquasars GRS 1915+105, Circinus X-1, and V4641 Sgr using contemporaneous H.E.S.S. and RXTE observations
Abdalla, H.; Abramowski, A.; Aharonian, F.; Benkhali, F. Ait; Akhperjanian, A.G.; Angüner, E.O.; Arrieta, M.; Aubert, P.; Backes, M.; Balzer, A.; Barnard, M.; Becherini, Y.; Tjus, J. Becker; Berge, D.; Bernhard, S.; Bernlöhr, K.; Birsin, E.; Blackwell, R.; Böttcher, M.; Boisson, C.; Bolmont, J.; Bordas, P.; Bregeon, J.; Brun, F.; Brun, P.; Bryan, M.; Bulik, T.; Capasso, M.; Carr, J.; Casanova, S.; Chadwick, P.M.; Chakraborty, N.; Chalme-Calvet, R.; Chaves, R.C.G.; Chen, A.; Chevalier, J.; Chrétien, M.; Colafrancesco, S.; Cologna, G.; Condon, B.; Conrad, J.; Couturier, C.; Cui, Y.; Davids, I.D.; Degrange, B.; Deil, C.; deWilt, P.; Dickinson, H.J.; Djannati-Ataï, A.; Domainko, W.; Donath, A.; Drury, L.O’C.; Dubus, G.; Dutson, K.; Dyks, J.; Dyrda, M.; Edwards, T.; Egberts, K.; Eger, P.; Ernenwein, J.-P.; Eschbach, S.; Farnier, C.; Fegan, S.; Fernandes, M.V.; Fiasson, A.; Fontaine, G.; Förster, A.; Funk, S.; Füßling, M.; Gabici, S.; Gajdus, M.; Gallant, Y.A.; Garrigoux, T.; Giavitto, G.; G...
Authors
A. Abramowski
F. Aharonian
F. Ait Benkhali
A.G. Akhperjanian
E.O. Angüner
M. Arrieta
P. Aubert
M. Backes
A. Balzer
M. Barnard
Y. Becherini
J. Becker Tjus
D. Berge
S. Bernhard
K. Bernlöhr
E. Birsin
R. Blackwell
M. Böttcher
C. Boisson
J. Bolmont
P. Bordas
J. Bregeon
F. Brun
P. Brun
M. Bryan
T. Bulik
M. Capasso
J. Carr
S. Casanova
Professor Paula Chadwick p.m.chadwick@durham.ac.uk
Head Of Department
N. Chakraborty
R. Chalme-Calvet
R.C.G. Chaves
A. Chen
J. Chevalier
M. Chrétien
S. Colafrancesco
G. Cologna
B. Condon
J. Conrad
C. Couturier
Y. Cui
I.D. Davids
B. Degrange
C. Deil
P. deWilt
H.J. Dickinson
A. Djannati-Ataï
W. Domainko
A. Donath
L.O’C. Drury
G. Dubus
K. Dutson
J. Dyks
M. Dyrda
T. Edwards
K. Egberts
P. Eger
J.-P. Ernenwein
S. Eschbach
C. Farnier
S. Fegan
M.V. Fernandes
A. Fiasson
G. Fontaine
A. Förster
S. Funk
M. Füßling
S. Gabici
M. Gajdus
Y.A. Gallant
T. Garrigoux
G. Giavitto
B. Giebels
J.F. Glicenstein
D. Gottschall
A. Goyal
M.-H. Grondin
M. Grudzińska
D. Hadasch
J. Hahn
J. Hawkes
G. Heinzelmann
G. Henri
G. Hermann
O. Hervet
A. Hillert
J.A. Hinton
W. Hofmann
C. Hoischen
M. Holler
D. Horns
A. Ivascenko
A. Jacholkowska
M. Jamrozy
M. Janiak
D. Jankowsky
F. Jankowsky
M. Jingo
T. Jogler
L. Jouvin
I. Jung-Richardt
M.A. Kastendieck
K. Katarzyński
U. Katz
D. Kerszberg
B. Khélifi
M. Kieffer
J. King
S. Klepser
D. Klochkov
W. Kluźniak
D. Kolitzus
Nu Komin
K. Kosack
S. Krakau
M. Kraus
F. Krayzel
P.P. Krüger
H. Laffon
G. Lamanna
J. Lau
J.-P. Lees
J. Lefaucheur
V. Lefranc
A. Lemière
M. Lemoine-Goumard
J.-P. Lenain
E. Leser
T. Lohse
M. Lorentz
R. Liu
I. Lypova
V. Marandon
A. Marcowith
C. Mariaud
R. Marx
G. Maurin
N. Maxted
M. Mayer
P.J. Meintjes
U. Menzler
M. Meyer
A.M.W. Mitchell
R. Moderski
M. Mohamed
K. Morå
E. Moulin
T. Murach
M. de Naurois
F. Niederwanger
J. Niemiec
L. Oakes
H. Odaka
S. Öttl
S. Ohm
M. Ostrowski
I. Oya
M. Padovani
M. Panter
R.D. Parsons
M. Paz Arribas
N.W. Pekeur
G. Pelletier
P.-O. Petrucci
B. Peyaud
S. Pita
H. Poon
D. Prokhorov
H. Prokoph
G. Pühlhofer
M. Punch
A. Quirrenbach
S. Raab
A. Reimer
O. Reimer
M. Renaud
R. de los Reyes
F. Rieger
C. Romoli
S. Rosier-Lees
G. Rowell
B. Rudak
C.B. Rulten
V. Sahakian
D. Salek
D.A. Sanchez
A. Santangelo
M. Sasaki
R. Schlickeiser
F. Schüssler
A. Schulz
U. Schwanke
S. Schwemmer
A.S. Seyffert
N. Shafi
I. Shilon
R. Simoni
H. Sol
F. Spanier
G. Spengler
F. Spies
Ł Stawarz
R. Steenkamp
C. Stegmann
F. Stinzing
K. Stycz
I. Sushch
J.-P. Tavernet
T. Tavernier
A.M. Taylor
R. Terrier
M. Tluczykont
C. Trichard
R. Tuffs
J. van der Walt
C. van Eldik
B. van Soelen
G. Vasileiadis
J. Veh
C. Venter
A. Viana
P. Vincent
J. Vink
F. Voisin
H.J. Völk
T. Vuillaume
Z. Wadiasingh
S.J. Wagner
P. Wagner
R.M. Wagner
R. White
A. Wierzcholska
P. Willmann
A. Wörnlein
D. Wouters
R. Yang
V. Zabalza
D. Zaborov
M. Zacharias
A.A. Zdziarski
A. Zech
F. Zefi
A. Ziegler
N. Żywucka
Abstract
Context. Microquasars are potential γ-ray emitters. Indications of transient episodes of γ-ray emission were recently reported in at least two systems: Cyg X-1 and Cyg X-3. The identification of additional γ-ray-emitting microquasars is required to better understand how γ-ray emission can be produced in these systems. Aim. Theoretical models have predicted very high-energy (VHE) γ-ray emission from microquasars during periods of transient outburst. Observations reported herein were undertaken with the objective of observing a broadband flaring event in the γ-ray and X-ray bands. Methods. Contemporaneous observations of three microquasars, GRS 1915+105, Circinus X-1, and V4641 Sgr, were obtained using the High Energy Spectroscopic System (H.E.S.S.) telescope array and the Rossi X-ray Timing Explorer (RXTE) satellite. X-ray analyses for each microquasar were performed and VHE γ-ray upper limits from contemporaneous H.E.S.S. observations were derived. Results. No significant γ-ray signal has been detected in any of the three systems. The integral γ-ray photon flux at the observational epochs is constrained to be I(>560 GeV) < 7.3 × 10−13 cm−2 s−1, I(>560 GeV ) < 1.2 × 10−12 cm−2 s−1, and I(>240 GeV) < 4.5 × 10−12 cm−2 s−1 for GRS 1915+105, Circinus X-1, and V4641 Sgr, respectively. Conclusions. The γ-ray upper limits obtained using H.E.S.S. are examined in the context of previous Cherenkov telescope observations of microquasars. The effect of intrinsic absorption is modelled for each target and found to have negligible impact on the flux of escaping γ-rays. When combined with the X-ray behaviour observed using RXTE, the derived results indicate that if detectable VHE γ-ray emission from microquasars is commonplace, then it is likely to be highly transient.
Citation
Abdalla, H., Abramowski, A., Aharonian, F., Benkhali, F. A., Akhperjanian, A., Angüner, E., …Żywucka, N. (2017). A search for very high-energy flares from the microquasars GRS 1915+105, Circinus X-1, and V4641 Sgr using contemporaneous H.E.S.S. and RXTE observations. Astronomy & Astrophysics, 612, Article A10. https://doi.org/10.1051/0004-6361/201527773
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 28, 2017 |
Online Publication Date | Apr 9, 2017 |
Publication Date | Apr 9, 2017 |
Deposit Date | Apr 26, 2018 |
Publicly Available Date | Apr 26, 2018 |
Journal | Astronomy and astrophysics. |
Print ISSN | 0004-6361 |
Electronic ISSN | 1432-0746 |
Publisher | EDP Sciences |
Peer Reviewed | Peer Reviewed |
Volume | 612 |
Article Number | A10 |
DOI | https://doi.org/10.1051/0004-6361/201527773 |
Files
Published Journal Article
(10.4 Mb)
PDF
Copyright Statement
Reproduced with permission from Astronomy & Astrophysics, © ESO 2018
You might also like
Gadolinium loaded Cherenkov detectors for neutron monitoring in high energy air showers
(2022)
Journal Article
The Galactic high mass X-ray binary population with Fermi-LAT
(2022)
Journal Article
35 Years of Ground-Based Gamma-ray Astronomy
(2021)
Journal Article
V404 Cygni with Fermi-LAT
(2021)
Journal Article
Axion constraints from quiescent soft gamma-ray emission from magnetars
(2021)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search