The first COMPTEL source catalogue

Schönfelder, V.; Bennett, K.; Blom, J. J.; Bloemen, H.; Collmar, W.; Connors, A.; Diehl, R.; Hermsen, W.; Iyudin, A. F.; Kippen, R. M.; Knödlseder, J.; Kuiper, L.; Lichti, G.; McConnell, Mark L.; Morris, D.; Much, R.; Oberlack, U.; Ryan, J. M.; Stacy, G.; Steinle, H.; Strong, A. W.; Suleiman, R. M.; Dijk, R. van; Varendorff, M.; Winkler, C.; Williams, O. R.

doi:10.1051/aas:2000101

Cited by 153 publications

(100 citation statements)

References 11 publications

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“…Apart from γ-ray bursts and AGN, the majority of the COMPTEL sources are unidentified objects. The first COMPTEL source catalogue lists 10 AGN and 9 unidentified γ-ray sources (Schönfelder et al, 2000). One of these unidentified sources is GRO J1823-12, which is significantly visible in time-averaged Send offprint requests to: W. Collmar Correspondence to: wec@mpe.mpg.de COMPTEL maps of all standard energy bands between 1 and 30 MeV (e.g.…”

Section: Introductionmentioning

confidence: 99%

LS 5039 – the counterpart of the unidentified MeV source GRO J1823-12

Collmar

Zhang

2014

A&A

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Context. The COMPTEL experiment on CGRO observed the γ-ray sky at energies from 0.75 MeV to 30 MeV between April 1991 and June 2000. COMPTEL detected many γ-ray sources, among them an unidentified one labeled GRO J1823-12. It is located near l/b=17.5 • /-0.5 • and positionally consistent with the prominent γ-ray binary LS 5039. Aims. LS 5039 was established as a γ-ray source at TeV energies by HESS and at GeV energies by Fermi/LAT during recent years, whose γ-ray radiation is modulated along its binary orbit. Given this new information we reanalysed the COMPTEL data of GRO J1823-12 including an orbital resolved analysis. Methods. We applied the standard methods, proper event selections and data binning with subsequent maximum-likelihood deconvolution, to analyse the COMPTEL data. In addition we developed a tool to select and bin the COMPTEL data in a phase-resolved manner. We present the orbit-averaged as well as orbit-resolved MeV analyses, lightcurves and spectra, and put them into multifrequency context. Results. The COMPTEL data show a significant MeV source, which is positionally consistent with LS 5039, however also with other closeby Fermi/LAT sources. The orbit-resolved analysis provides strong evidence, at about the 3σ level, that the MeV flux of GRO J1823-12 is modulated along the binary orbit of about 3.9 days of LS 5039. We show that at MeV energies the source is brighter at the orbital part around the inferior conjuction than at the part of the superior conjunction, being in phase with X-rays and TeV γ-rays, however being in anti-phase with GeV γ-rays. The high-energy SED (X-rays to TeV γ-rays) shows the high-energy emission maximum of LS 5039 at MeV energies. Conclusions. We conclude that the COMPTEL source GRO J1823-12 is the counterpart of the microquasar LS 5039, at least for the majority of its MeV emission. The COMPTEL fluxes, put into multifrequency perspective, provide new constraints on the modelling of the high-energy emission pattern of the γ-ray binary LS 5039.

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Section: Introductionmentioning

confidence: 99%

LS 5039 – the counterpart of the unidentified MeV source GRO J1823-12

Collmar

Zhang

2014

A&A

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“…Apart from γ-ray bursts, unidentified sources and AGN are the majority of the COMPTEL detections. While the sum of all others (pulsars, stellar black-hole candidates, supernova remnants and γ-ray line sources) are about 12, the first COMPTEL catalogue lists 10 AGN and 9 unidentified γ-ray sources (Schönfelder et al 2000). In this paper we report the detection of a further unidentified COMPTEL source, which shows a variable MeV flux and is located in the galactic plane.…”

Section: Introductionmentioning

confidence: 78%

An unidentified variable gamma-ray source near the galactic plane detected by COMPTEL

Zhang

Collmar

Schönfelder

2002

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Abstract. We report the detection of an unidentified γ-ray source near the Galactic plane by the COMPTEL experiment aboard the Compton Gamma-Ray Observatory. The source is detected at a significance level of ∼7.2σ in the energy range 1-3 MeV and at ∼4.6σ in the lower 0.75-1 MeV band in the time period March to July 1995. At energies above 3 MeV are only marginal hints or upper limits obtained. The MeV spectrum has a soft shape. Strong flux variability is found within one year at energies below 3 MeV. Possible counterparts of galactic and extragalactic nature are discussed.

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“…In addition, the complete table reported on line will make faster the searches for given GRBs. The following satellite missions and the associated catalogues have been taken into account: Agile by Galli, M. et al (2013);Pal'shin et al (2013); Longo, F. et al (2012); Hurley et al (2013), BeppoSAX by Frontera et al (2009), CGRO by Stern et al (2001); Kommers et al (2001);Schönfelder et al (2000) and the batsegrb catalogue Meegan et al 1996) in HEASARC web site 3 , Fermi with Paciesas et al (2012);von Kienlin et al (2014) and the fermigbrst catalogue in HEASARC archive 4 von Kienlin et al 2014;Goldstein et al 2012;Paciesas et al 2012), GRANAT, HETE-2, INTEGRAL by Minaev et al (2014); Bošnjak,Ž. et al (2014); Mereghetti (2013), Konus/Wind by Pal'shin et al (2013), Swift by Sakamoto et al (2011) and the "Swift GRB Table and Lookup" 5 ; ULYSSES by Hurley et al (1999).…”

Section: The Sample Selectionmentioning

confidence: 99%

Possible gamma-ray burst radio detections by the Square Kilometre Array. New perspectives

Ruggeri¹,

Capozziello²

2016

Astrophys Space Sci

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The next generation interferometric radio telescope, the Square Kilometre Array (SKA), which will be the most sensitive and largest radio telescope ever constructed, could greatly contribute to the detection, survey and characterization of Gamma Ray Bursts (GRBs). By the SKA, it will be possible to perform the follow up of GRBs even for several months. This approach would be extremely useful to extend the Spectrum Energetic Distribution (SED) from the gamma to the to radio band and would increase the number of radio detectable GRBs. In principle, the SKA could help to understand the physics of GRBs by setting constraints on theoretical models. This goal could be achieved by taking into account multiple observations at different wavelengths in order to obtain a deeper insight of the sources. Here, we present an estimation of GRB radio detections, showing that the GRBs can really be observed by the SKA. The approach that we present consists in determining blind detection rates derived by a very large sample consisting of merging several GRB catalogues observed by current missions as Swift, Fermi, Agile and INTEGRAL and by previous missions as BeppoSAX, CGRO, GRANAT, HETE-2, Ulysses and Wind. The final catalogue counts 7516 distinct sources. We compute the fraction of GRBs that could be observed by the SKA at high and low frequencies, above its observable sky. Considering the planned SKA sensitivity and through an extrapolation Alan Cosimo Ruggeri Salvatore Capozziello 1 Dipartimento di Fisica, Università di Napoli "Federico II", Compl. Univ. Monte S. Angelo, Via Cinthia 9, I -80126, Napoli, Italy. 2 I.N.F.N., Sez. di Napoli, Compl. Univ. Monte S. Angelo, Edificio G, Via Cintia, Napoli, Italy. 3 Gran Sasso Science Institute (INFN), Viale F. Crispi, 7, I-67100, L'Aquila, Italy. * acruggeri@na.infn.it; capozziello@na.infn.it based on previous works and observations, we deduce the minimum fluence in the range 15 -150 keV. This is the energy interval where a GRB should emit to be detectable in the radio band by the SKA. Results seem consistent with observational capabilities.

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The first COMPTEL source catalogue

Cited by 153 publications

References 11 publications

LS 5039 – the counterpart of the unidentified MeV source GRO J1823-12

LS 5039 – the counterpart of the unidentified MeV source GRO J1823-12

An unidentified variable gamma-ray source near the galactic plane detected by COMPTEL

Possible gamma-ray burst radio detections by the Square Kilometre Array. New perspectives

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