Search for gamma-ray emission from the Coma Cluster with six years of Fermi-LAT data

Ackermann, M.

doi:10.3847/0004-637X/819/2/149

Title: Search for gamma-ray emission from the Coma Cluster with six years of Fermi-LAT data

Journal Article · Tue Mar 08 00:00:00 EST 2016 · The Astrophysical Journal (Online)

DOI:https://doi.org/10.3847/0004-637X/819/2/149· OSTI ID:1355684

Ackermann, M. ^[1]

Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)

We present results from γ-ray observations of the Coma cluster incorporating 6 years of Fermi-LAT data and the newly released “Pass 8” event-level analysis. Our analysis of the region reveals low-significance residual structures within the virial radius of the cluster that are too faint for a detailed investigation with the current data. Using a likelihood approach that is free of assumptions on the spectral shape we derive upper limits on the γ-ray flux that is expected from energetic particle interactions in the cluster. We also consider a benchmark spatial and spectral template motivated by models in which the observed radio halo is mostly emission by secondary electrons. In this case, the median expected and observed upper limits for the flux above 100MeV are 1.7 x 10^-9 ph cm^-2 s^-1and 5.2 x 10^-9 ph cm^-2 s^-1 respectively (the latter corresponds to residual emission at the level of 1:8σ). These bounds are comparable to or higher than predicted levels of hadronic gamma-ray emission in cosmic-ray models with or without reacceleration of secondary electrons, although direct comparisons are sensitive to assumptions regarding the origin and propagation mode of cosmic rays and magnetic field properties. The minimal expected γ-ray flux from radio and star-forming galaxies within the Coma cluster is roughly an order of magnitude below the median sensitivity of our analysis.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: The Fermi-LAT Collaboration

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1355684

Journal Information:: The Astrophysical Journal (Online), Vol. 819, Issue 2; ISSN 1538-4357

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 61 works

Citation information provided by
Web of Science

References (45)

Fermi Gamma-Ray Imaging of a Radio Galaxy Abdo, A. A.; Ackermann, M.; Ajello, M. Science, Vol. 328, Issue 5979 https://doi.org/10.1126/science.1184656	journal	April 2010
FERMI LARGE AREA TELESCOPE THIRD SOURCE CATALOG Acero, F.; Ackermann, M.; Ajello, M. The Astrophysical Journal Supplement Series, Vol. 218, Issue 2 https://doi.org/10.1088/0067-0049/218/2/23	journal	June 2015
THE FERMI LARGE AREA TELESCOPE ON ORBIT: EVENT CLASSIFICATION, INSTRUMENT RESPONSE FUNCTIONS, AND CALIBRATION Ackermann, M.; Ajello, M.; Albert, A. The Astrophysical Journal Supplement Series, Vol. 203, Issue 1 https://doi.org/10.1088/0067-0049/203/1/4	journal	October 2012
Search for Cosmic-Ray-Induced Gamma-Ray Emission in Galaxy Clusters Ackermann, M.; Ajello, M.; Albert, A. The Astrophysical Journal, Vol. 787, Issue 1 https://doi.org/10.1088/0004-637X/787/1/18	journal	April 2014
GeV GAMMA-RAY FLUX UPPER LIMITS FROM CLUSTERS OF GALAXIES Ackermann, M.; Ajello, M.; Allafort, A. The Astrophysical Journal, Vol. 717, Issue 1 https://doi.org/10.1088/2041-8205/717/1/L71	journal	June 2010
FERMI -LAT OBSERVATIONS OF THE DIFFUSE γ-RAY EMISSION: IMPLICATIONS FOR COSMIC RAYS AND THE INTERSTELLAR MEDIUM Ackermann, M.; Ajello, M.; Atwood, W. B. The Astrophysical Journal, Vol. 750, Issue 1 https://doi.org/10.1088/0004-637X/750/1/3	journal	April 2012
Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope Ackermann, M.; Albert, A.; Anderson, B. Physical Review D, Vol. 89, Issue 4 https://doi.org/10.1103/PhysRevD.89.042001	journal	February 2014
Constraints on the multi-TeV particle population in the Coma galaxy cluster with HESS observations Aharonian, F.; Akhperjanian, A. G.; Anton, G. Astronomy & Astrophysics, Vol. 502, Issue 2 https://doi.org/10.1051/0004-6361/200912086	journal	June 2009
GALAXY CLUSTERS IN THE SWIFT /BURST ALERT TELESCOPE ERA: HARD X-RAYS IN THE INTRACLUSTER MEDIUM Ajello, M.; Rebusco, P.; Cappelluti, N. The Astrophysical Journal, Vol. 690, Issue 1 https://doi.org/10.1088/0004-637X/690/1/367	journal	December 2008
CONSTRAINTS ON COSMIC RAYS, MAGNETIC FIELDS, AND DARK MATTER FROM GAMMA-RAY OBSERVATIONS OF THE COMA CLUSTER OF GALAXIES WITH VERITAS AND FERMI Arlen, T.; Aune, T.; Beilicke, M. The Astrophysical Journal, Vol. 757, Issue 2 https://doi.org/10.1088/0004-637X/757/2/123	journal	September 2012
THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION Atwood, W. B.; Abdo, A. A.; Ackermann, M. The Astrophysical Journal, Vol. 697, Issue 2 https://doi.org/10.1088/0004-637X/697/2/1071	journal	May 2009
Positions of Three Discrete Sources of Galactic Radio-Frequency Radiation Bolton, J. G.; Stanley, G. J.; Slee, O. B. Nature, Vol. 164, Issue 4159 https://doi.org/10.1038/164101b0	journal	July 1949
The Coma cluster magnetic field from Faraday rotation measures Bonafede, A.; Feretti, L.; Murgia, M. Astronomy and Astrophysics, Vol. 513 https://doi.org/10.1051/0004-6361/200913696	journal	April 2010
Diffuse radio emission in/around the Coma cluster: beyond simple accretion: Diffuse Coma Brown, Shea; Rudnick, Lawrence Monthly Notices of the Royal Astronomical Society, Vol. 412, Issue 1 https://doi.org/10.1111/j.1365-2966.2010.17738.x	journal	February 2011
Cosmic rays in Galaxy Clusters and Their Nonthermal Emission Brunetti, Gianfranco; Jones, Thomas W. International Journal of Modern Physics D, Vol. 23, Issue 04 https://doi.org/10.1142/S0218271814300079	journal	March 2014
Acceleration of primary and secondary particles in galaxy clusters by compressible MHD turbulence: from radio haloes to gamma-rays: Turbulent acceleration in galaxy clusters Brunetti, G.; Lazarian, A. Monthly Notices of the Royal Astronomical Society, Vol. 410, Issue 1 https://doi.org/10.1111/j.1365-2966.2010.17457.x	journal	September 2010
Probing the origin of giant radio haloes through radio and γ-ray data: the case of the Coma cluster: Probing radio haloes through radio and γ-rays Brunetti, G.; Blasi, P.; Reimer, O. Monthly Notices of the Royal Astronomical Society, Vol. 426, Issue 2 https://doi.org/10.1111/j.1365-2966.2012.21785.x	journal	September 2012
Statistics of X-ray observables for the cooling-core and non-cooling core galaxy clusters Chen, Y.; Reiprich, T. H.; Böhringer, H. Astronomy & Astrophysics, Vol. 466, Issue 3 https://doi.org/10.1051/0004-6361:20066471	journal	April 2007
A stacked analysis of brightest cluster galaxies observed with the Fermi Large Area Telescope Dutson, K. L.; White, R. J.; Edge, A. C. Monthly Notices of the Royal Astronomical Society, Vol. 429, Issue 3 https://doi.org/10.1093/mnras/sts477	journal	December 2012
Observations of Extended Radio Emission in Clusters Ferrari, C.; Govoni, F.; Schindler, S. Space Science Reviews, Vol. 134, Issue 1-4 https://doi.org/10.1007/s11214-008-9311-x	journal	February 2008
On the detectability of gamma rays from clusters of galaxies: mergers versus secondary infall Gabici, Stefano; Blasi, Pasquale Astroparticle Physics, Vol. 20, Issue 5 https://doi.org/10.1016/j.astropartphys.2003.09.002	journal	February 2004
A NuSTAR OBSERVATION OF THE CENTER OF THE COMA CLUSTER Gastaldello, Fabio; Wik, Daniel R.; Molendi, S. The Astrophysical Journal, Vol. 800, Issue 2 https://doi.org/10.1088/0004-637X/800/2/139	journal	February 2015
HEALPix: A Framework for High‐Resolution Discretization and Fast Analysis of Data Distributed on the Sphere Gorski, K. M.; Hivon, E.; Banday, A. J. The Astrophysical Journal, Vol. 622, Issue 2 https://doi.org/10.1086/427976	journal	April 2005
New Limits on Gamma-Ray Emission from Galaxy Clusters Griffin, Rhiannon D.; Dai, Xinyu; Kochanek, Christopher S. The Astrophysical Journal, Vol. 795, Issue 1 https://doi.org/10.1088/2041-8205/795/1/L21	journal	October 2014
Constraining extended gamma-ray emission from galaxy clusters: Extended gamma-ray emission in clusters Han, Jiaxin; Frenk, Carlos S.; Eke, Vincent R. Monthly Notices of the Royal Astronomical Society, Vol. 427, Issue 2 https://doi.org/10.1111/j.1365-2966.2012.22080.x	journal	November 2012
Probing the cosmic-ray content of galaxy clusters by stacking Fermi -LAT count maps Huber, B.; Tchernin, C.; Eckert, D. Astronomy & Astrophysics, Vol. 560 https://doi.org/10.1051/0004-6361/201321947	journal	December 2013
Roma-BZCAT: a multifrequency catalogue of blazars Massaro, E.; Giommi, P.; Leto, C. Astronomy & Astrophysics, Vol. 495, Issue 2 https://doi.org/10.1051/0004-6361:200810161	journal	December 2008
On the Nonthermal Emission and Acceleration of Electrons in Coma and Other Clusters of Galaxies Petrosian, Vahe The Astrophysical Journal, Vol. 557, Issue 2 https://doi.org/10.1086/321557	journal	August 2001
Simulating the γ-ray emission from galaxy clusters: a universal cosmic ray spectrum and spatial distribution: Simulating γ-rays from galaxy clusters Pinzke, Anders; Pfrommer, Christoph Monthly Notices of the Royal Astronomical Society, Vol. 409, Issue 2 https://doi.org/10.1111/j.1365-2966.2010.17328.x	journal	September 2010
Planck intermediate results : X. Physics of the hot gas in the Coma cluster Ade, P. A. R.; Aghanim, N.; Arnaud, M. Astronomy & Astrophysics, Vol. 554 https://doi.org/10.1051/0004-6361/201220247	journal	June 2013
Planck 2013 results. XVI. Cosmological parameters Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C. Astronomy & Astrophysics, Vol. 571 https://doi.org/10.1051/0004-6361/201321591	journal	October 2014
An analysis of Fermi-LAT observations of the outskirts of the Coma cluster of galaxies Prokhorov, D. A. Monthly Notices of the Royal Astronomical Society, Vol. 441, Issue 3 https://doi.org/10.1093/mnras/stu707	journal	May 2014
Counting gamma rays in the directions of galaxy clusters Prokhorov, D. A.; Churazov, E. M. Astronomy & Astrophysics, Vol. 567 https://doi.org/10.1051/0004-6361/201322454	journal	July 2014
The Coma Cluster at γ -ray energies: Multifrequency constraints Reimer, A.; Reimer, O.; Schlickeiser, R. Astronomy & Astrophysics, Vol. 424, Issue 3 https://doi.org/10.1051/0004-6361:20041174	journal	September 2004
EGRET Upper Limits on the High‐Energy Gamma‐Ray Emission of Galaxy Clusters Reimer, O.; Pohl, M.; Sreekumar, P. The Astrophysical Journal, Vol. 588, Issue 1 https://doi.org/10.1086/374046	journal	May 2003
The Mass Function of an X‐Ray Flux–limited Sample of Galaxy Clusters Reiprich, Thomas H.; Bohringer, Hans The Astrophysical Journal, Vol. 567, Issue 2 https://doi.org/10.1086/338753	journal	March 2002
Nonthermal Phenomena in Clusters of Galaxies Rephaeli, Y.; Nevalainen, J.; Ohashi, T. Space Science Reviews, Vol. 134, Issue 1-4 https://doi.org/10.1007/s11214-008-9314-7	journal	February 2008
Limits and confidence intervals in the presence of nuisance parameters Rolke, Wolfgang A.; López, Angel M.; Conrad, Jan Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 551, Issue 2-3 https://doi.org/10.1016/j.nima.2005.05.068	journal	October 2005
Gamma rays from star Formation in Clusters of Galaxies Storm, Emma M.; Jeltema, Tesla E.; Profumo, Stefano The Astrophysical Journal, Vol. 755, Issue 2 https://doi.org/10.1088/0004-637X/755/2/117	journal	August 2012
The diffuse radio emission from the Coma cluster at 2.675 GHz and 4.85 GHz Thierbach, M.; Klein, U.; Wielebinski, R. Astronomy & Astrophysics, Vol. 397, Issue 1 https://doi.org/10.1051/0004-6361:20021474	journal	December 2002
Radio sources and clusters of galaxies van den Bergh, Sidney The Astronomical Journal, Vol. 66 https://doi.org/10.1086/108465	journal	December 1961
A SUZAKU SEARCH FOR NONTHERMAL EMISSION AT HARD X-RAY ENERGIES IN THE COMA CLUSTER Wik, Daniel R.; Sarazin, Craig L.; Finoguenov, Alexis The Astrophysical Journal, Vol. 696, Issue 2 https://doi.org/10.1088/0004-637X/696/2/1700	journal	April 2009
NuSTAR OBSERVATIONS OF THE BULLET CLUSTER: CONSTRAINTS ON INVERSE COMPTON EMISSION Wik, Daniel R.; Hornstrup, A.; Molendi, S. The Astrophysical Journal, Vol. 792, Issue 1 https://doi.org/10.1088/0004-637X/792/1/48	journal	August 2014
Radio Observations of the Cluster of Galaxies in Coma Berenices-- the 5C4 Survey Willson, M. A. G. Monthly Notices of the Royal Astronomical Society, Vol. 151, Issue 1 https://doi.org/10.1093/mnras/151.1.1	journal	December 1970
Constraints on diffuse gamma-ray emission from structure formation processes in the Coma cluster Zandanel, Fabio; Ando, Shin'ichiro Monthly Notices of the Royal Astronomical Society, Vol. 440, Issue 1 https://doi.org/10.1093/mnras/stu324	journal	March 2014

Cited By (30)

Probing the low-energy spectrum of non-thermal electrons in galaxy clusters with soft gamma ray observations Marchegiani, P. Astrophysics and Space Science, Vol. 364, Issue 3 https://doi.org/10.1007/s10509-019-3530-3	journal	March 2019
Diffuse Radio Emission from Galaxy Clusters van Weeren, R. J.; de Gasperin, F.; Akamatsu, H. Space Science Reviews, Vol. 215, Issue 1 https://doi.org/10.1007/s11214-019-0584-z	journal	February 2019
Deep observation of the NGC 1275 region with MAGIC: search of diffuse γ -ray emission from cosmic rays in the Perseus cluster Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A. Astronomy & Astrophysics, Vol. 589 https://doi.org/10.1051/0004-6361/201527846	journal	April 2016
New giant radio sources and underluminous radio halos in two galaxy clusters Cuciti, V.; Brunetti, G.; van Weeren, R. Astronomy & Astrophysics, Vol. 609 https://doi.org/10.1051/0004-6361/201731174	journal	January 2018
Radio observations of the merging galaxy cluster Abell 520 Hoang, D. N.; Shimwell, T. W.; van Weeren, R. J. Astronomy & Astrophysics, Vol. 622 https://doi.org/10.1051/0004-6361/201833900	journal	February 2019
Ultra-steep spectrum emission in the merging galaxy cluster Abell 1914 Mandal, S.; Intema, H. T.; Shimwell, T. W. Astronomy & Astrophysics, Vol. 622 https://doi.org/10.1051/0004-6361/201833992	journal	February 2019
Characterizing the radio emission from the binary galaxy cluster merger Abell 2146 Hoang, D. N.; Shimwell, T. W.; van Weeren, R. J. Astronomy & Astrophysics, Vol. 622 https://doi.org/10.1051/0004-6361/201834025	journal	February 2019
Searching for dark matter annihilation from individual halos: uncertainties, scatter and signal-to-noise ratios Okoli, Chiamaka; Taylor, James E.; Afshordi, Niayesh Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 08 https://doi.org/10.1088/1475-7516/2018/08/019	journal	August 2018
Deep LOFAR observations of the merging galaxy cluster CIZA J2242.8+5301 Hoang, D. N.; Shimwell, T. W.; Stroe, A. Monthly Notices of the Royal Astronomical Society, Vol. 471, Issue 1 https://doi.org/10.1093/mnras/stx1645	journal	June 2017
Relativistic protons in the Coma galaxy cluster: first gamma-ray constraints ever on turbulent reacceleration Brunetti, G.; Zimmer, S.; Zandanel, F. Monthly Notices of the Royal Astronomical Society, Vol. 472, Issue 2 https://doi.org/10.1093/mnras/stx2092	journal	August 2017
LOFAR discovery of an ultra-steep radio halo and giant head–tail radio galaxy in Abell 1132 Wilber, A.; Brüggen, M.; Bonafede, A. Monthly Notices of the Royal Astronomical Society, Vol. 473, Issue 3 https://doi.org/10.1093/mnras/stx2568	journal	October 2017
Manufacturing cosmic rays in the evolving dynamical states of galaxy clusters John, Reju Sam; Paul, Surajit; Iapichino, Luigi Monthly Notices of the Royal Astronomical Society, Vol. 488, Issue 1 https://doi.org/10.1093/mnras/stz1785	journal	July 2019
Effect of turbulent reacceleration on electrons produced by dark matter annihilation in the Coma cluster Marchegiani, P. Monthly Notices of the Royal Astronomical Society, Vol. 488, Issue 1 https://doi.org/10.1093/mnras/stz1798	journal	July 2019
Measurement of redshift-dependent cross-correlation of HSC clusters and Fermi γ-rays Hashimoto, Daiki; Nishizawa, Atsushi J.; Shirasaki, Masato Monthly Notices of the Royal Astronomical Society, Vol. 484, Issue 4 https://doi.org/10.1093/mnras/stz321	journal	February 2019
Development of dark disk model of positron anomaly origin Belotsky, K. M.; Kirillov, A. A.; Solovyov, M. L. International Journal of Modern Physics D, Vol. 27, Issue 06 https://doi.org/10.1142/s0218271818410109	journal	April 2018
Deep VLA Observations of the Cluster 1RXS J0603.3+4214 in the Frequency Range of 1–2 GHz Rajpurohit, K.; Hoeft, M.; van Weeren, R. J. The Astrophysical Journal, Vol. 852, Issue 2 https://doi.org/10.3847/1538-4357/aa9f13	journal	January 2018
Effects of Alfvénic Drift on Diffusive Shock Acceleration at Weak Cluster Shocks Kang, Hyesung; Ryu, Dongsu The Astrophysical Journal, Vol. 856, Issue 1 https://doi.org/10.3847/1538-4357/aab1f2	journal	March 2018
Proton Acceleration in Weak Quasi-parallel Intracluster Shocks: Injection and Early Acceleration Ha, Ji-Hoon; Ryu, Dongsu; Kang, Hyesung The Astrophysical Journal, Vol. 864, Issue 2 https://doi.org/10.3847/1538-4357/aad634	journal	September 2018
Evidence for an X-Ray to Gamma-Ray Virial Shock Signal from the Coma Cluster Keshet, Uri; Reiss, Ido The Astrophysical Journal, Vol. 869, Issue 1 https://doi.org/10.3847/1538-4357/aaeb1d	journal	December 2018
The Impact of Radio AGN Bubble Composition on the Dynamics and Thermal Balance of the Intracluster Medium Yang, H. -Y. Karen; Gaspari, Massimo; Marlow, Carl The Astrophysical Journal, Vol. 871, Issue 1 https://doi.org/10.3847/1538-4357/aaf4bd	journal	January 2019
A Diffusive Shock Acceleration Model for Protons in Weak Quasi-parallel Intracluster Shocks Ryu, Dongsu; Kang, Hyesung; Ha, Ji-Hoon The Astrophysical Journal, Vol. 883, Issue 1 https://doi.org/10.3847/1538-4357/ab3a3a	journal	September 2019
CROSS-CORRELATING THE γ -RAY SKY WITH CATALOGS OF GALAXY CLUSTERS Branchini, Enzo; Camera, Stefano; Cuoco, Alessandro The Astrophysical Journal Supplement Series, Vol. 228, Issue 1 https://doi.org/10.3847/1538-4365/228/1/8	journal	January 2017
Deep observation of the NGC 1275 region with MAGIC: search of diffuse $\gamma$-ray emission from cosmic rays in the Perseus cluster Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2016-04075	text	January 2016
Deep observation of the NGC 1275 region with MAGIC: search of diffuse gamma-ray emission from cosmic rays in the Perseus cluster Collaboration, Magic; Ahnen, M. L.; Ansoldi, S. arXiv https://doi.org/10.48550/arxiv.1602.03099	text	January 2016
Deep LOFAR observations of the merging galaxy cluster CIZA J2242.8+5301 Hoang, D. N.; Shimwell, T. W.; Stroe, A. arXiv https://doi.org/10.48550/arxiv.1706.09903	text	January 2017
Development of dark disk model of positron anomaly origin Belotsky, K. M.; Kirillov, A. A.; Solovyov, M. L. arXiv https://doi.org/10.48550/arxiv.1802.04678	text	January 2018
Manufacturing cosmic rays in the evolving dynamical states of galaxy clusters John, Reju Sam; Paul, Surajit; Iapichino, Luigi arXiv https://doi.org/10.48550/arxiv.1803.04445	text	January 2018
Proton Acceleration in Weak Quasi-parallel Intracluster Shocks: Injection and Early Acceleration Ha, Ji-Hoon; Ryu, Dongsu; Kang, Hyesung arXiv https://doi.org/10.48550/arxiv.1807.09403	text	January 2018
Ultra-steep spectrum emission in the merging galaxy cluster Abell 1914 Mandal, S.; Intema, H. T.; Shimwell, T. W. arXiv https://doi.org/10.48550/arxiv.1811.08430	text	January 2018
Radio observations of the merging galaxy cluster Abell 520 Hoang, D. N.; Shimwell, T. W.; van Weeren, R. J. arXiv https://doi.org/10.48550/arxiv.1811.09713	text	January 2018

Similar Records

Search for gamma-ray emission from the Coma cluster with six years of Fermi-LAT data

Journal Article · Thu Mar 10 00:00:00 EST 2016 · Astrophysical Journal · OSTI ID:1355684

Ackermann, M.; Buehler, R.; Ajello, M.; +17 more

CONSTRAINTS ON COSMIC RAYS, MAGNETIC FIELDS, AND DARK MATTER FROM GAMMA-RAY OBSERVATIONS OF THE COMA CLUSTER OF GALAXIES WITH VERITAS AND FERMI

Journal Article · Mon Oct 01 00:00:00 EDT 2012 · Astrophysical Journal · OSTI ID:1355684

Arlen, T.; Aune, T.; Bouvier, A.; +17 more

Search For Gamma-Ray Emission From X-Ray-Selected Seyfert Galaxies With Fermi -LAT

Journal Article · Thu Feb 23 00:00:00 EST 2012 · The Astrophysical Journal · OSTI ID:1355684

Ackermann, M.

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS

Title: Search for gamma-ray emission from the Coma Cluster with six years of Fermi-LAT data

Citation Formats

References (45)

Cited By (30)

Similar Records

Related Subjects