Relevant bibliographies by topics / Gamma-ray blazars

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Gamma-ray blazars'

Author: Grafiati
Published: 4 June 2021
Last updated: 28 January 2023

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Journal articles on the topic "Gamma-ray blazars"

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Salvati, M., M. Spada, and F. Pacini. "Rapid Variability of Gamma-Ray Blazars." Highlights of Astronomy 11, no. 2 (1998): 816–19. http://dx.doi.org/10.1017/s1539299600018864.

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This paper is devoted to a discussion of the rapid variability observed in γ-ray blazars. We do this in the framework of a widely accepted scenario, according to which the blazar emission arises from a jet, i.e. a continuous flow of relativistic fluid, with perturbations occasionally superimposed. The jet is assumed to have a bulk Lorentz factor Γ ≫ 1, and length z and radius r such that r ã z/Γ.
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Massaro, Francesco, R. D'Abrusco, M. Giroletti, A. Paggi, N. Masetti, and G. Tosti. "Unveiling the nature of the unidentified gamma-ray sources: blazar counterparts at low radio frequencies." Proceedings of the International Astronomical Union 9, S304 (2013): 95. http://dx.doi.org/10.1017/s1743921314003433.

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AbstractAbout one third of the gamma-ray sources detected by Fermi have still no firmly established counterpart at lower energies. Here we propose a new approach to find candidate counterparts for the unidentified gamma-ray sources (UGSs) based on the 325 MHz radio survey performed with Westerbork Synthesis Radio Telescope (WSRT) in the northern hemisphere. First we investigate the low-frequency radio properties of blazars, the largest known population of gamma-ray sources; then we search for sources with similar radio properties combining the information derived from the Westerbork Northern Sky Survey (WENSS) with those of the NRAO VLA Sky survey (NVSS). We present a list of candidate counterparts for 32 UGSs with at least one counterpart in the WENSS. We also performed an extensive research in literature to look for infrared and optical counterparts of the gamma-ray blazar candidates selected with the low-frequency radio observations to confirm their nature. On the basis of our multifrequency research we identify 23 new gamma-ray blazar candidates out of 32 UGSs investigated. I will also present the first analysis of very low frequency radio emission of blazars based on the recent Very Large Array Low-Frequency Sky Survey (VLSS) at 74 MHz. I show that blazars present radio flat spectra when evaluated at 74 MHz, about an order of magnitude in frequency lower than previous analyses. The implications of these findings in the contest of the blazars – radio galaxies connection will be discussed.
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Uwitonze, Emmanuel, Pheneas Nkundabakura, and Tom Mutabazi. "Determination of K4000 of potential blazar candidates among EGRET unidentified gamma-ray sources." Proceedings of the International Astronomical Union 15, S356 (2019): 355–57. http://dx.doi.org/10.1017/s1743921320003336.

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AbstractBlazars are radio-loud Active Galactic Nuclei (AGN) with relativistic jets oriented towards the observer’s line-of-sight. Based on their optical spectra, blazars may be classified as flat-spectrum radio quasars (FSRQs) or BL Lacs. FSRQs are more luminous blazars with both narrow and broad emission and absorption lines, while BL Lacs are less luminous and featureless. Recent studies show that blazars dominate (˜93%) the already-identified EGRET sources (142), suggesting that among the unidentified sources (129) there could still be faint blazars. Due to the presence of a strong non-thermal component inside their jets, blazars are found to display a weaker depression at ˜4000 Å (K 4000 ≤ 0.4). In this study, we aimed at determining the K 4000 break for a selected sample among the potential blazar candidates from unidentified EGRET sources to confirm their blazar nature. We used two blazar candidates, 3EG J1800-0146 and 3EG J1709-0817 associated with radio counterparts, J1802-0207 and J1713-0817, respectively. Their optical counterparts were obtained through spectroscopic observations using Robert Stobie spectrograph (RSS) at the Southern African Large Telescope (SALT) in South Africa. The observed Ca II H & K lines depression at ˜4000 Å in spectra of these sources show a shallow depression, K 4000 = 0.35 ± 0.02 and 0.24 ± 0.01, respectively, suggesting that these sources are blazar candidates. Moreover, the redshifts z = 0.165 and 0.26 measured in their spectra confirm the extragalactic nature of these sources.
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Langejahn, M., M. Kadler, J. Wilms, et al. "Hard X-ray properties of radio-selected blazars." Astronomy & Astrophysics 637 (May 2020): A55. http://dx.doi.org/10.1051/0004-6361/202037469.

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Context. Hard X-ray properties of beamed active galactic nuclei have been published in the 105-month Swift/BAT catalog, but there have not been any studies carried out so far on a well-defined, radio-selected sample of low-peaked blazars in the hard X-ray band. Aims. Using the statistically complete MOJAVE-1 sample, we aim to determine the hard X-ray properties of radio-selected blazars, including the enigmatic group of gamma-ray-faint blazars. Additionally, we aim to determine the contribution of radio-selected low-peaked blazars to the diffuse cosmic X-ray background (CXB). Methods. We determined photon indices, fluxes, and luminosities in the range of 20 keV–100 keV of the X-ray spectra of blazars and other extragalactic jets from the MOJAVE-1 sample, derived from the 105-month Swift/BAT survey. We calculated log N–log S distributions and determined the luminosity functions. Results. The majority of the MOJAVE-1 blazars are found to be hard X-ray emitters albeit many at low count rates. The log N–log S distribution for the hard X-ray emission of radio-selected blazars is clearly non-Euclidean, in contrast to the radio flux density distribution. Approximately 0.2% of the CXB in the 20 keV–100 keV band can be resolved into MOJAVE-1 blazars. Conclusions. The peculiar log N–log S distribution disparity might be attributed to different evolutionary paths in the X-ray and radio bands, as tested by luminosity-function modeling. X-ray variability can be ruled out as the dominant contributor. Low-peaked blazars constitute an intrinsically different source population in terms of CXB contribution compared to similar studies of X-ray-selected blazars. The hard X-ray flux and spectral index can serve as a good proxy for the gamma-ray detection probability of individual sources. Future observations combining deep X-ray survey, for example, with eROSITA, and targeted gamma-ray observations with CTA can benefit strongly from the tight connection between these high-energy bands for the different blazar sub-classes.
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Fukazawa, Yasushi, Hiroto Matake, Taishu Kayanoki, Yoshiyuki Inoue, and Justin Finke. "High-energy Emission Component, Population, and Contribution to the Extragalactic Gamma-Ray Background of Gamma-Ray-emitting Radio Galaxies." Astrophysical Journal 931, no. 2 (2022): 138. http://dx.doi.org/10.3847/1538-4357/ac6acb.

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Abstract In this study, we systematically studied the X-ray to GeV gamma-ray spectra of 61 Fermi Large Area Telescope detected radio galaxies. We found an anticorrelation between peak frequency and peak luminosity in the high-energy spectral component of radio galaxies, similar to blazars. With this sample, we also constructed a gamma-ray luminosity function (GLF) of gamma-ray-loud radio galaxies. We found that blazar-like GLF shapes can reproduce their redshift and luminosity distribution, but the log N–log S relation prefers models with more low-z radio galaxies. Utilizing our latest GLF, the contribution of radio galaxies to the extragalactic gamma-ray background is found to be 1%–10%. We further investigated the nature of gamma-ray-loud radio galaxies. Compared to radio or X-ray flux-limited radio galaxy samples, the gamma-ray-selected sample tends to lack high radio power galaxies like FR II radio galaxies. We also found that only ∼10% of radio galaxies are GeV gamma-ray loud. Radio galaxies may contribute to the cosmic MeV gamma-ray background comparable to blazars if gamma-ray-quiet radio galaxies have X-ray to gamma-ray spectra like Cen A, with a small gamma-ray-to-X-ray flux ratio.
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Takahashi, T., H. Kubo, and G. Madejski. "ASCA Observations of Blazars." Highlights of Astronomy 11, no. 2 (1998): 812–15. http://dx.doi.org/10.1017/s1539299600018852.

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During the last years it has become evident that blazar class of AGN emit a lot of energy in the gamma-ray regime. It is generally thought that the non-thermal emission from blazars, observed from radio to GeV/TeV 7-rays, is radiation of very energetic particles via both synchrotron and Compton processes. This underlines the importance of high-energy emission for models of the blazar class of active galactic nuclei. Most of the gamma-bright AGN are variable, and flares with time scales as short as a day have been observed. This suggests that the site of gamma-ray emission is very compact and situated in a fluid which moves relativistically at a small angle towards the observer. It is generally assumed that the emission originates from the jet of these objects.
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Damascène Mbarubucyeye, Jean, Felicia Krauß, and Pheneas Nkundabakura. "Multiwavelength study of potential blazar candidates among Fermi-LAT unidentified gamma-ray sources." Proceedings of the International Astronomical Union 15, S356 (2019): 326–28. http://dx.doi.org/10.1017/s1743921320003245.

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AbstractStudying unidentified γ-ray sources is important as they may hide new discoveries. We conducted a multiwavelength analysis of 13 unidentified Fermi-LAT sources in the 3FGL catalogue that have no known counterparts (Unidentified Gamma-ray Sources, UnIDs). The sample was selected for sources that have a single radio and X-ray candidate counterpart in their uncertainty ellipses. The purpose of this study is to find a possible blazar signature and to model the Spectral Energy Distribution (SED) of the selected sources using an empirical log parabolic model. The results show that the synchrotron emission of all sources peaks in the infrared (IR) band and that the high-energy emission peaks in MeV to GeV bands. The SEDs of sources in our sample are all blazar like. In addition, the peak position of the sample reveals that 6 sources (46.2%) are Low Synchrotron Peaked (LSP) blazars, 4 (30.8%) of them are High Synchrotron Peaked (HSP) blazars, while 3 of them (23.0%) are Intermediate Synchrotron Peaked (ISP) blazars.
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GIEBELS, BERRIE. "VERY HIGH ENERGY GAMMA-RAY MEASUREMENTS OF BLAZARS." International Journal of Modern Physics D 17, no. 09 (2008): 1431–41. http://dx.doi.org/10.1142/s0218271808013005.

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The origin of γ-rays emitted by blazars is widely attributed to radiative cooling of the most energetic particles in a relativistic flow, which itself is thought to originate from the surroundings of a supermassive black hole. The linkage between the accreting gas, the black hole, jet formation, and the observed radiation from the jet, are still very difficult to establish. The most energetic γ-rays are likely to be produced close to the comptonizing particles acceleration zone, and are therefore a unique probe of the underlying physical mechanisms at play. This report contains a review of the status of the field of Very High Energy (VHE) γ-ray astronomy, in the light of measurements from the current generation of Atmospheric Čerenkov Telescopes (ACTs), which have dramatically changed our view of blazars over the last years, and given us new insights about the blazar phenomenon.
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Canac, N. E., K. N. Abazajian, T. Tajima, T. Ebisuzaki, and S. Horiuchi. "Observational signatures of gamma-rays from bright blazars and wakefield theory." Monthly Notices of the Royal Astronomical Society 493, no. 2 (2020): 2229–37. http://dx.doi.org/10.1093/mnras/staa338.

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ABSTRACT Gamma-ray observations have revealed strong variability in blazar luminosities in the gamma-ray band over time-scales as short as minutes. We show, for the first time, that the correlation of the spectrum with intensity is consistent with the behaviour of the luminosity variation of blazar spectral energy distributions (SEDs) along a blazar sequence for low synchrotron peak blazars. We show that the observational signatures of variability with flux are consistent with wakefield acceleration of electrons initiated by instabilities in the blazar accretion disc. This mechanism reproduces the observed time variations as short as 100 s. The wakefield mechanism also predicts a reduction of the electron spectral index with increased gamma-ray luminosity, which could be detected in higher energy observations well above the inverse Compton peak.
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Kreter, Michael. "Search for high-redshift blazars with Fermi-LAT." Proceedings of the International Astronomical Union 15, S356 (2019): 23. http://dx.doi.org/10.1017/s1743921320002501.

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AbstarctHigh-redshift blazars (z ⩾ 2.5) are one of the most powerful classes of gamma-ray sources in the Universe. These objects posses the highest jet powers and luminosities and have black-hole masses often in excess of 109 solar masses. In addition, high-redshift blazars are important cosmological probes and serve as test objects for blazar evolution models. Due to their large distance, their high-energy emission peak is downshifted to energies below the GeV range, which makes them difficult to study with Fermi/LAT and only the very brightest objects are detectable. Hence, only a small number of high-redshift blazars could be detected with Fermi/LAT so far. In this work, we present a strategy to significantly increase the detection statistics at redshift z ⩾ 2.5 via a search for flaring events in high-redshift gamma-ray blazars whose long-term flux remains below the sensitivity limit of Fermi/LAT. Seven previously GeV undetected high-redshift blazars have been identified from their bright monthly outburst periods, while more detections are expected in the future.
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Dissertations / Theses on the topic "Gamma-ray blazars"

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McKenny, Joy Martina. "Observations of southern hemisphere gamma ray emitting blazars." Thesis, Durham University, 2003. http://etheses.dur.ac.uk/3695/.

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This thesis details observations of three Southern hemisphere blazars PKS 2155-304 PKS 2005-489 and PKS 0548-322 using the University of Durham Mark 6 Telescope between 1996 and 1999. The nature of blazars and the physical processes responsible for very high energy emission are also discussed. A signal above 700 GeV was observed from PKS 2155-304 between 1996 and 1997 but not in 1998 and 1999. One plausible explanation for this is a reduction in sensitivity of the Mark 6.Evidence for variability of high energy emission from PKS 2155-304 was search for but no firm conclusion was reached. Upper limits to emission from PKS 2005-489 and PKS 0548-322 were determined. Gamma ray observations for all three objects were tested for correlation with near simultaneous 2-10 keV X-ray emission (taken using the ASM onboard RXTE). No strong evidence for correlation was found. It is worth noting however that gamma ray emission from PKS 2155-304 was detected when the X-ray emission was greatest. No constraints could be made on models of gamma ray production from blazars. No models were excluded. Future observations with the new generation of gamma ray telescopes such as H.E.S.S. and CANGAROO will allow more detailed investigation of these objects and many others and their variability while multiwavelength observations will determine the nature of the acceleration processes at work.
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Harris, Jonathan Daniel. "Physics from the gamma-ray spectra of blazars." Thesis, Durham University, 2014. http://etheses.dur.ac.uk/11446/.

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Blazars are numerous and often bright sources of cosmic γ-rays with several hundred such objects currently detected in this regime. However, there are several outstanding issues surrounding them. For example, it is uncertain exactly where in the kiloparsec- scale blazar jet γ-rays are produced and what the physical mechanisms responsible for the emission are. This thesis is an investigation in the physics and astronomy that can be learnt from studying the γ-ray energy spectra of blazars. Two studies are presented analysing bright blazars with the Fermi-Large Area Telescope (LAT). From the smooth spectral curvature seen in many of the objects and the lack of sharp spectral breaks it is concluded that the emission region is likely beyond the radius of the broad line region of 0.1 pc. It is seen that nearby confusing objects can lead to apparent breaks being ob- served in the spectra. However, a light curve analysis is performed of the bright blazar 3C 454.3 and it is seen that spectral breaks do sometimes occur when the object is in high flux states. From the shift in the peak of the γ-ray emission it is concluded that the high flux states are caused by an increase in the Lorentz factor of the emission region or by changes in the population of electrons in the emission region, but the origin of the breaks remains unexplained. Finally, a study is presented examining the effect that hypothetical axions or axion-like particles (ALPs) would have on the spectra if these particles should exist. It is found that under the right conditions a sudden flux boost could appear in the spectrum at a few TeV. The chances of the future Cherenkov Telescope Array (CTA) detecting the effects of photon-ALP mixing in AGN spectra is considered through simu- lated observations. These effects potentially present themselves in the spectra two ways: firstly the aforementioned flux boost and secondly due to the fact that the existence of ALPs could mitigate the pair absorption that γ-rays undergo when they traverse inter- galactic space. It is concluded that CTA will have good prospects of either detecting these effects or else, if no effect is seen, setting limits on the mass and coupling constant that ALPs could have.
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Dickinson, Mark R. "Very high energy gamma ray observations of southern hemisphere blazars." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4705/.

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This thesis is concerned with very high energy γ-ray observations of blazars observable from the southern hemisphere. The data presented were obtained using the recently deployed University of Durham Mark 6 high sensitivity Čerenkov telescope. Chapters 1 and 2 are introductory; the subjects of γ-ray astronomy, extensive air showers, Čerenkov light production, the development of the atmospheric Čerenkov technique and the current status of TeV astronomy are discussed. Chapter 3 introduces the telescopes operated by the University of Durham. The Mark 6 telescope, designed to have a low threshold energy and a high resolution imaging system, is discussed in detail. Chapter 4 presents the calibration and analysis techniques routinely applied to data obtained with the Mark 6 telescope. The chapter concludes with a set of moment parameter selections designed to reject a significant fraction of the cosmic ray cascades, while retaining the majority of γ-rays cascades. These selections have resulted in a 5σ detection of PSR 1706-44. Chapter 5 discusses active galactic nuclei and in particular blazars. Topics included are recent high energy observations; the differences between the radio/X-ray selected BL Lacs and flat spectrum radio quasars; the infrared background; high energy flux variability and γ-ray production mechanisms within these objects. The chapter concludes with a list of possible very high energy γ-ray emitting blazars observable with the Mark 6 Čerenkov telescope. Chapter 6 presents the results from four of these very high-energy γ-ray blazar candidates; PKS 0548-322, PKS 1514-24, PKS 2005-489 and PKS 2155-304. There is no evidence for γ-ray emission from these sources, either in the form of a steady flux or variable activity. Three sigma integral flux upper limits above 300 GeV are produced for these objects and the implications of these observations are discussed. The conclusions are presented in Chapter 7 as well as ideas for future work.
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Healey, Stephen Edward. "Multiwavelength studies of gamma-ray blazars over the entire sky /." May be available electronically:, 2009. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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Bastin, Fane Troy. "A multiwavelength investigation of blazar-type active galactic nuclei." Thesis, University of Canterbury. Department of Physics and Astronomy, 2013. http://hdl.handle.net/10092/11302.

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A multiwavelength investigation is conducted for nineteen blazar-type active galactic nuclei. Studies of variability timescales and flux duty cycles are performed at x- and gamma-rays for each source, with the relationship between flux and spectral index also being probed at gamma wavelengths. The correlation between these two energy ranges is also investigated, by utilising the Discrete Correlation Function with both one and ten day binning. The sources were chosen for their availability over a range of different x- and gamma-ray data sources: observations utilised include 0.2 - 150 keV x-ray data from the Swift mission and 200 MeV- 300 GeV gamma-ray data from the Fermi mission. Daily-binned Fermi data is used to calculate the smallest rise and decay e-folding times in gamma for each source. The results range from 0.4 to 21 days, corresponding to limits on the size of the gamma emission region ranging from Rd^-1 = 4.39 x 10^12 to Rd^-1 = 5.14 x 10^14 m. Flux duty cycles for fourteen sources are created from Fermi data, with six displaying structure at high fluxes that indicate flaring states have occured. Five of these six sources also display clear flares in their light curves, confirming these results. The relationship between the flux and the spectral index shows eight of nineteen sources exhibit harder-when-brighter behaviour. Four of these eight have been previously confirmed to display such behaviour. Results from the Discrete Correlation Function show a correlation at a time lag of ~ 600 days for H 1426+428, of uncertain origin. Gaussian functions are fitted to possible near-zero peaks in 3C 66A, 3C 454.3 and Mrk 421, which could be indicative of a synchrotron self-Compton component to the emission of these objects.
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Calle, Pérez Ignacio de la. "Detection of high energy gamma rays from X-ray selected blazars." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270857.

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Nandikotkur, Giridhar. "Tracking spectral changes in blazars with the energetic gamma ray experiment telescope (EGRET)." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7747.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Roustazadeh, Sheikhyousefi Parisa. "Pair Cascades in Blazars and Radio Galaxies." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1327333900.

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Wagner, Robert Marcus. "Measurement of very high energy gamma-ray emission from four blazars using the MAGIC telescope and a comparative blazar study." [S.l.] : [s.n.], 2006. http://mediatum2.ub.tum.de/doc/604099/document.pdf.

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Wagner, Robert M. "Very High Blazar Astrophysics : Measurement of Very High Energy Gamma-Ray Emission from Four Blazars Using the MAGIC Telescope and a Comparative Blazar Study /." Fischbachtal, Odenw : HARLAND media, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=3001678&prov=M&dok_var=1&dok_ext=htm.

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Books on the topic "Gamma-ray blazars"

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Fichtel, Carl E. Addendum to Gamma-ray astrophysics: New insight into the universe, second edition (RP 1386, October 1997). National Aeronautics and Space Administration, Goddard Space Flight Center, 1999.

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Bykov, Andrei, Elena Amato, Jonathan Arons, et al., eds. Jets and Winds in Pulsar Wind Nebulae, Gamma-Ray Bursts and Blazars. Springer Netherlands, 2018. http://dx.doi.org/10.1007/978-94-024-1292-5.

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1943-, Miller H. Richard, ed. Blazar Variability Workshop II: Entering the GLAST era : proceedings of a workshop held at Florida International University, Miami, Florida, USA, 10-12 April 2005. Astronomical Society of the Pacific, 2006.

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I, Trombka Jacob, and Goddard Space Flight Center, eds. Addendum to Gamma-ray astrophysics: New insight into the universe, second edition (RP 1386, October 1997). National Aeronautics and Space Administration, Goddard Space Flight Center, 1999.

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I, Trombka Jacob, and Goddard Space Flight Center, eds. Addendum to Gamma-ray astrophysics: New insight into the universe, second edition (RP 1386, October 1997). National Aeronautics and Space Administration, Goddard Space Flight Center, 1999.

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I, Trombka Jacob, and Goddard Space Flight Center, eds. Addendum to Gamma-ray astrophysics: New insight into the universe, second edition (RP 1386, October 1997). National Aeronautics and Space Administration, Goddard Space Flight Center, 1999.

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Bykov, Andrei, Rudolf von Steiger, Luigi Stella, et al. Jets and Winds in Pulsar Wind Nebulae, Gamma-Ray Bursts and Blazars. Springer, 2018.

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Bykov, Andrei, Rudolf von Steiger, Luigi Stella, et al. Jets and Winds in Pulsar Wind Nebulae, Gamma-Ray Bursts and Blazars. Springer, 2019.

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Book chapters on the topic "Gamma-ray blazars"

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Mannheim, Karl. "TeV Gamma-Rays from Proton Blazars." In TeV Gamma-Ray Astrophysics. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0171-1_24.

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Salvati, M., M. Spada, and F. Pacini. "Rapid Variability of Gamma-Ray Blazars." In Highlights of Astronomy. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-4778-1_64.

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Ghisellini, Gabriele. "X-Ray and Gamma-Ray Emission in Blazars." In Extragalactic Radio Sources. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0295-4_146.

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Raiteri, C. M., G. Ghisellini, M. Villata, et al. "Optical Monitoring of Gamma-Ray Loud Blazars." In Extragalactic Radio Sources. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0295-4_105.

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Aller, M. F., H. D. Aller, and P. A. Hughes. "The Radio-Gamma-Ray Connection: The Radio Properties of Gamma-Ray-Bright Blazars." In Extragalactic Radio Sources. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0295-4_103.

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Böttcher, Markus. "Modeling the emission processes in blazars." In The Multi-Messenger Approach to High-Energy Gamma-Ray Sources. Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6118-9_16.

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Mukherjee, R. "High Energy Gamma-Ray Emission from Blazars: Egret Observations." In Observational Evidence for Black Holes in the Universe. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4750-7_15.

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Willingale, R., and P. Mészáros. "Gamma-Ray Bursts and Fast Transients." In Jets and Winds in Pulsar Wind Nebulae, Gamma-Ray Bursts and Blazars. Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1292-5_3.

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Beloborodov, A. M., and P. Mészáros. "Photospheric Emission of Gamma-Ray Bursts." In Jets and Winds in Pulsar Wind Nebulae, Gamma-Ray Bursts and Blazars. Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1292-5_4.

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Reynolds, Stephen P., George G. Pavlov, Oleg Kargaltsev, Noel Klingler, Matthieu Renaud, and Sandro Mereghetti. "Pulsar-Wind Nebulae and Magnetar Outflows: Observations at Radio, X-Ray, and Gamma-Ray Wavelengths." In Jets and Winds in Pulsar Wind Nebulae, Gamma-Ray Bursts and Blazars. Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1292-5_7.

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Conference papers on the topic "Gamma-ray blazars"

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Hartman, R. C., W. Collmar, C. von Montigny, and C. D. Dermer. "Gamma-ray blazars." In The fourth compton symposium. AIP, 1997. http://dx.doi.org/10.1063/1.54033.

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Dermer, Charles D., and Reinhard Schlickeiser. "Gamma-ray bursts and gamma-ray blazars." In Gamma-ray bursts: Second workshop. AIP, 1994. http://dx.doi.org/10.1063/1.45922.

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Tavecchio, Fabrizio. "Gamma rays from blazars." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 6th International Meeting on High Energy Gamma-Ray Astronomy. Author(s), 2017. http://dx.doi.org/10.1063/1.4968892.

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Buckley, James H. "Very high energy gamma rays from blazars." In GAMMA 2001: Gamma-Ray Astrophysics 2001. AIP, 2001. http://dx.doi.org/10.1063/1.1419406.

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Nandikotkur, Giridhar. "High energy observations of blazars-archival analysis." In GAMMA 2001: Gamma-Ray Astrophysics 2001. AIP, 2001. http://dx.doi.org/10.1063/1.1419420.

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Sikora, Marek, Mitchell C. Begelman, and Martin J. Rees. "Comptonization of external radiation in blazars." In COMPTON GAMMA-RAY OBSERVATORY. AIP, 1993. http://dx.doi.org/10.1063/1.44292.

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Sikora, Marek. "Blazars." In The international symposium on high energy gamma-ray astronomy. AIP, 2001. http://dx.doi.org/10.1063/1.1370797.

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Maraschi, Laura. "Gamma-ray Blazars: an overview." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 2nd International Symposium on High Energy Gamma-Ray Astronomy. AIP, 2005. http://dx.doi.org/10.1063/1.1878403.

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Ghisellini, Gabriele. "Blazars and Gamma Ray Bursts." In VI Microquasar Workshop: Microquasars and Beyond. Sissa Medialab, 2007. http://dx.doi.org/10.22323/1.033.0027.

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Kurtanidze, Omar M. "CCD photometry of blazars at abastumani: Progress report." In GAMMA 2001: Gamma-Ray Astrophysics 2001. AIP, 2001. http://dx.doi.org/10.1063/1.1419425.

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Reports on the topic "Gamma-ray blazars"

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Sowards-Emmerd, D. A Northern Survey of Gamma-Ray Blazar Candidates. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/839911.

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Michelson, Peter. The Gamma-Ray Blazar Content of the Northern Sky. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/813316.

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You might also be interested in the extended bibliographies on the topic 'Gamma-ray blazars' for particular source types:
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