A General Gamma‐Ray Source Catalog

Macomb, D. J.; Gehrels, N.

doi:10.1086/313182

Cited by 32 publications

(26 citation statements)

References 432 publications

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“…Future multi-wavelength observations may be able to resolve such short time lags, and provide additional constraints on the models. Observations of the BL Lac Mrk 421 reveal simultaneous X-ray/TeV outbursts with no significant variations of the flux at EGRET energies 29,30 . Such an event has no natural explanation within the framework of inhomogeneous ERC models.…”

Section: Surrounding Mattermentioning

confidence: 95%

High-Energy Aspects of Astrophysical Jets

Levinson

2006

Int. J. Mod. Phys. A

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Various aspects of the high-energy emission from relativistic jets associated with compact astrophysical systems are reviewed. The main leptonic and hadronic processes responsible for the production of high-energy γ-rays, very-high energy neutrinos and ultra-high energy cosmic rays are discussed. Relations between the γγ pair production and photomeson production opacities are derived, and their consequences for the relative emission of γ-rays and neutrinos are examined. The scaling of the size and location of the various emission zones and other quantities with black hole mass and dimensionless luminosity is elucidated. The results are applied to individual classes of objects, including blazars, microquasars and gamma-ray bursts. It is concluded that if baryons are present in the jet at sufficient quantities, then under optimal conditions most systems exhibiting relativistic jets may be detectable by upcoming neutrino telescopes. An exception is the class of TeV blazars, for which γ-ray observations imply neutrino yields well below detection limit.

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Section: Surrounding Mattermentioning

confidence: 95%

High-Energy Aspects of Astrophysical Jets

Levinson

2006

Int. J. Mod. Phys. A

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“…The distances to a number of the HMXBs and LMXBs were found through an examination of the available data as published in the literature (White & van Paradijs 1996;Macomb & Gehrels 1999;Kuulkers et al 2003), thus allowing the construction of a 3D model of the source distribution. An updated list of distances collected from available literature for neutron stars and black holes in LMXB as reported by Jonker & Nelemans (2004) represented one key source of distance information.…”

Section: The Spatial Distributionsmentioning

confidence: 99%

Global characteristics of the first IBIS/ISGRI catalogue sources: unveiling a murky episode of binary star evolution

Dean

Bazzano

Hill

et al. 2005

A&A

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INTEGRAL is the first gamma-ray astronomy mission with a sufficient sensitivity and angular resolution combination appropriate to the detection and identification of considerable numbers of gamma-ray emitting sources. The large field of view (∼30• zero response FWHM) enables INTEGRAL to survey the galactic plane on a regular (∼weekly) basis as part of the core programme. The first source catalogue, based on the 1st year of core programme data (∼5 Ms) has been completed and published (Bird et al. 2004, ApJ, 607, L33). It contained 123 γ-ray sources (24 HMXB, 54 LMXB, 28 "unknown", plus 17 others) -sufficient numbers for a reasonable statistical analysis of their global properties. These were located to a positional accuracy of typically 0.72 arcmin. The detection of previously unknown γ-ray emitting sources generally exhibiting high intrinsic absorption, which do not have readily identifiable counterparts at other wavelengths, is intriguing. The substantial fraction (roughly 20% of the total number) of unclassified γ-ray sources suggests they must constitute a significant family of objects. In this paper we review the global characteristics of the known galactic sources as well as the unclassified objects with the twin aims of investigating how the unclassified set may fit into stellar evolution and improving our understanding of known X-ray binary systems through the non-thermal γ-ray channel. In the context of the known systems we are very conscious that they constitute a γ-ray selected set, and may exhibit subtle generic differences to the rest of the class. We present Log(N)-Log(S ) distributions, angular distributions, and for systems with reliable distance estimates the spatial distributions within the Galaxy and luminosity functions. For the unknown sources, this statistical analysis has shown that they are most likely to be HMXBs containing a highly magnetised neutron star. The lack of X-ray counterparts for these sources indicates a high degree of intrinsic obscuration.

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“…In addition to the list of monitored sources accumulated during the operation of BATSE, we reviewed the HEAO 1 A-4 hard X-ray (Levine et al 1984) catalog and the recent gammaray source compilation of Macomb & Gehrels (1999) for completeness of the known high-energy Galactic sources, and we performed a literature search of other high-energy objects above the BATSE sensitivity threshold. We did not include the EGRET ''unidentified'' sources from Macomb & Gehrels (1999) owing to the probable extragalactic nature of many of them, and the relatively large uncertainty in location ($1 ) that would strongly affect the measured flux using the EOT.…”

Section: Introductionmentioning

confidence: 99%

“…We did not include the EGRET ''unidentified'' sources from Macomb & Gehrels (1999) owing to the probable extragalactic nature of many of them, and the relatively large uncertainty in location ($1 ) that would strongly affect the measured flux using the EOT.…”

Section: Introductionmentioning

confidence: 99%

The Burst and Transient Source Experiment (BATSE) Earth Occultation Catalog of Low‐Energy Gamma‐Ray Sources

Harmon

Wilson

Fishman

et al. 2004

ASTROPHYS J SUPPL S

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The Burst and Transient Source Experiment (BATSE), aboard the Compton Gamma Ray Observatory (CGRO), provided a record of the low-energy gamma-ray sky ($20-1000 keV) between 1991 April and 2000 May (9.1 yr).BATSE monitored the high-energy sky using the Earth occultation technique (EOT) for point sources whose emission extended for times on the order of the CGRO orbital period ($92 min) or greater. Using the EOT to extract flux information, a catalog of sources using data from the BATSE Large Area Detectors has been prepared. The first part of the catalog consists of results from the all-sky monitoring of 58 sources, mostly Galactic, with intrinsic variability on timescales of hours to years. For these sources, we have included tables of flux and spectral data, and outburst times for transients. Light curves (or flux histories) have been placed on the World Wide Web.We then performed a deep-sampling of these 58 objects, plus a selection of 121 more objects, combining data from the entire 9.1 yr BATSE data set. Source types considered were primarily accreting binaries, but a small number of representative active galaxies, X-ray-emitting stars, and supernova remnants were also included. The sample represents a compilation of sources monitored and/or discovered with BATSE and other high-energy instruments between 1991 and 2000, known sources taken from the HEAO 1 A-4 and Macomb & Gehrels catalogs. The deep sample results include definite detections of 83 objects and possible detections of 36 additional objects. The definite detections spanned three classes of sources: accreting black hole and neutron star binaries, active galaxies, and supernova remnants. The average fluxes measured for the fourth class, the X-ray emitting stars, were below the confidence limit for definite detection.Flux data for the deep sample are presented in four energy bands: 20-40, 40-70, 70-160, and 160-430 keV. The limiting average flux level (9.1 yr) for the sample varies from 3.5 to 20 mcrab (5 ) between 20 and 430 keV, depending on systematic error, which in turn is primarily dependent on the sky location.To strengthen the credibility of detection of weaker sources ($5-25 mcrab), we generated Earth occultation images, searched for periodic behavior using FFT and epoch folding methods, and critically evaluated the energy-dependent emission in the four flux bands. The deep sample results are intended for guidance in performing future all-sky surveys or pointed observations in the hard X-ray and low-energy gamma-ray band, as well as more detailed studies with the BATSE EOT.

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A General Gamma‐Ray Source Catalog

Cited by 32 publications

References 432 publications

High-Energy Aspects of Astrophysical Jets

High-Energy Aspects of Astrophysical Jets

Global characteristics of the first IBIS/ISGRI catalogue sources: unveiling a murky episode of binary star evolution

The Burst and Transient Source Experiment (BATSE) Earth Occultation Catalog of Low‐Energy Gamma‐Ray Sources

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