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Constraints on Cosmic Rays Population in the Radio Halo of the M87 Galaxy from Gamma-Ray Observations
We present results of our search for extended high-energy emission around the M87 galaxy, which is the central galaxy in the Virgo cluster. The M87 galaxy harbors extremely heavy supermassive black hole, and for the last 100 Myr experiences a period of increased activity that resulted in formation o...
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| Published in: | JETP letters 2022, Vol.115 (5), p.245-250 |
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| container_end_page | 250 |
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| container_title | JETP letters |
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| creator | Nizamov, B. A. Pshirkov, M. S. |
| description | We present results of our search for extended high-energy emission around the M87 galaxy, which is the central galaxy in the Virgo cluster. The M87 galaxy harbors extremely heavy supermassive black hole,
and for the last 100 Myr experiences a period of increased activity that resulted in formation of extended lobes, which are prominent radio- and X-ray sources. We perform a search in 13 yr of the Fermi-LAT data in three energy bins: 0.1–1, 1–10, and 10–100 GeV. No significant detection of extended emission was achieved in any bin, with weak indication of a signal (
) in the last bin (10–100 GeV). We used γ-ray observations to put limits on cosmic rays population in the lobes, constraining their fraction
X
in comparison to the thermal energy of the hot gas. Depending on the value of spectral index, for electrons
and protons were constrained at
level. We confirm that cosmic rays is a subdominant component of the lobes, which are dominated by thermal gas. |
| doi_str_mv | 10.1134/S0021364022100137 |
| format | article |
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and for the last 100 Myr experiences a period of increased activity that resulted in formation of extended lobes, which are prominent radio- and X-ray sources. We perform a search in 13 yr of the Fermi-LAT data in three energy bins: 0.1–1, 1–10, and 10–100 GeV. No significant detection of extended emission was achieved in any bin, with weak indication of a signal (
) in the last bin (10–100 GeV). We used γ-ray observations to put limits on cosmic rays population in the lobes, constraining their fraction
X
in comparison to the thermal energy of the hot gas. Depending on the value of spectral index, for electrons
and protons were constrained at
level. We confirm that cosmic rays is a subdominant component of the lobes, which are dominated by thermal gas.</description><identifier>ISSN: 0021-3640</identifier><identifier>EISSN: 1090-6487</identifier><identifier>DOI: 10.1134/S0021364022100137</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Astrophysics and Cosmology ; Atomic ; Biological and Medical Physics ; Biophysics ; Constraints ; Cosmic rays ; Elliptical galaxies ; Emission ; Gamma rays ; High energy astronomy ; Lobes ; Molecular ; Optical and Plasma Physics ; Particle and Nuclear Physics ; Physics ; Physics and Astronomy ; Quantum Information Technology ; Radio sources (astronomy) ; Solid State Physics ; Spintronics ; Supermassive black holes ; Thermal energy ; Virgo galactic cluster ; X ray sources</subject><ispartof>JETP letters, 2022, Vol.115 (5), p.245-250</ispartof><rights>The Author(s) 2022. ISSN 0021-3640, JETP Letters, 2022, Vol. 115, No. 5, pp. 245–250. © The Author(s), 2022. This article is an open access publication, corrected publication 2022. ISSN 0021-3640, JETP Letters, 2022. © Pleiades Publishing, Inc., 2022. Russian Text © The Author(s), 2022, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2022, Vol. 115, No. 5, pp. 281–286.</rights><rights>The Author(s) 2022. ISSN 0021-3640, JETP Letters, 2022, Vol. 115, No. 5, pp. 245–250. © The Author(s), 2022. This article is an open access publication, corrected publication 2022. ISSN 0021-3640, JETP Letters, 2022. © Pleiades Publishing, Inc., 2022. Russian Text © The Author(s), 2022, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2022, Vol. 115, No. 5, pp. 281–286. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c311t-435b0df535804ffcb66601ad3a457b31098ff3d851cc826a58ed0c34de8369513</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Nizamov, B. A.</creatorcontrib><creatorcontrib>Pshirkov, M. S.</creatorcontrib><title>Constraints on Cosmic Rays Population in the Radio Halo of the M87 Galaxy from Gamma-Ray Observations</title><title>JETP letters</title><addtitle>Jetp Lett</addtitle><description>We present results of our search for extended high-energy emission around the M87 galaxy, which is the central galaxy in the Virgo cluster. The M87 galaxy harbors extremely heavy supermassive black hole,
and for the last 100 Myr experiences a period of increased activity that resulted in formation of extended lobes, which are prominent radio- and X-ray sources. We perform a search in 13 yr of the Fermi-LAT data in three energy bins: 0.1–1, 1–10, and 10–100 GeV. No significant detection of extended emission was achieved in any bin, with weak indication of a signal (
) in the last bin (10–100 GeV). We used γ-ray observations to put limits on cosmic rays population in the lobes, constraining their fraction
X
in comparison to the thermal energy of the hot gas. Depending on the value of spectral index, for electrons
and protons were constrained at
level. We confirm that cosmic rays is a subdominant component of the lobes, which are dominated by thermal gas.</description><subject>Astrophysics and Cosmology</subject><subject>Atomic</subject><subject>Biological and Medical Physics</subject><subject>Biophysics</subject><subject>Constraints</subject><subject>Cosmic rays</subject><subject>Elliptical galaxies</subject><subject>Emission</subject><subject>Gamma rays</subject><subject>High energy astronomy</subject><subject>Lobes</subject><subject>Molecular</subject><subject>Optical and Plasma Physics</subject><subject>Particle and Nuclear Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Information Technology</subject><subject>Radio sources (astronomy)</subject><subject>Solid State Physics</subject><subject>Spintronics</subject><subject>Supermassive black holes</subject><subject>Thermal energy</subject><subject>Virgo galactic cluster</subject><subject>X ray sources</subject><issn>0021-3640</issn><issn>1090-6487</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEQhoMoWKs_wFvA82pm89mjLNoKlYof5yWbTXTL7qYmW2n_vWkreBBPM7zv-8wwg9AlkGsAym5eCMmBCkbyHAgBKo_QCMiEZIIpeYxGOzvb-afoLMZlioCicoRs4fs4BN30Q8S-x4WPXWPws95G_ORX61YPTZKbHg8fNsl14_FMtx57t1celcRT3erNFrvgu9R3nc4SjhdVtOFrj8dzdOJ0G-3FTx2jt_u712KWzRfTh-J2nhkKMGSM8orUjlOuCHPOVEIIArqmmnFZ0XSPco7WioMxKheaK1sTQ1ltFRUTDnSMrg5zV8F_rm0cyqVfhz6tLHMhGJNSyUlKwSFlgo8xWFeuQtPpsC2BlLtvln--mZj8wMSU7d9t-J38P_QNxAd0qw</recordid><startdate>2022</startdate><enddate>2022</enddate><creator>Nizamov, B. A.</creator><creator>Pshirkov, M. S.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2022</creationdate><title>Constraints on Cosmic Rays Population in the Radio Halo of the M87 Galaxy from Gamma-Ray Observations</title><author>Nizamov, B. A. ; Pshirkov, M. S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c311t-435b0df535804ffcb66601ad3a457b31098ff3d851cc826a58ed0c34de8369513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Astrophysics and Cosmology</topic><topic>Atomic</topic><topic>Biological and Medical Physics</topic><topic>Biophysics</topic><topic>Constraints</topic><topic>Cosmic rays</topic><topic>Elliptical galaxies</topic><topic>Emission</topic><topic>Gamma rays</topic><topic>High energy astronomy</topic><topic>Lobes</topic><topic>Molecular</topic><topic>Optical and Plasma Physics</topic><topic>Particle and Nuclear Physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum Information Technology</topic><topic>Radio sources (astronomy)</topic><topic>Solid State Physics</topic><topic>Spintronics</topic><topic>Supermassive black holes</topic><topic>Thermal energy</topic><topic>Virgo galactic cluster</topic><topic>X ray sources</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nizamov, B. A.</creatorcontrib><creatorcontrib>Pshirkov, M. S.</creatorcontrib><collection>Springer Open Access</collection><collection>CrossRef</collection><jtitle>JETP letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nizamov, B. A.</au><au>Pshirkov, M. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Constraints on Cosmic Rays Population in the Radio Halo of the M87 Galaxy from Gamma-Ray Observations</atitle><jtitle>JETP letters</jtitle><stitle>Jetp Lett</stitle><date>2022</date><risdate>2022</risdate><volume>115</volume><issue>5</issue><spage>245</spage><epage>250</epage><pages>245-250</pages><issn>0021-3640</issn><eissn>1090-6487</eissn><abstract>We present results of our search for extended high-energy emission around the M87 galaxy, which is the central galaxy in the Virgo cluster. The M87 galaxy harbors extremely heavy supermassive black hole,
and for the last 100 Myr experiences a period of increased activity that resulted in formation of extended lobes, which are prominent radio- and X-ray sources. We perform a search in 13 yr of the Fermi-LAT data in three energy bins: 0.1–1, 1–10, and 10–100 GeV. No significant detection of extended emission was achieved in any bin, with weak indication of a signal (
) in the last bin (10–100 GeV). We used γ-ray observations to put limits on cosmic rays population in the lobes, constraining their fraction
X
in comparison to the thermal energy of the hot gas. Depending on the value of spectral index, for electrons
and protons were constrained at
level. We confirm that cosmic rays is a subdominant component of the lobes, which are dominated by thermal gas.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S0021364022100137</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | JETP letters, 2022, Vol.115 (5), p.245-250 |
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| language | eng |
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| source | Springer Nature |
| subjects | Astrophysics and Cosmology Atomic Biological and Medical Physics Biophysics Constraints Cosmic rays Elliptical galaxies Emission Gamma rays High energy astronomy Lobes Molecular Optical and Plasma Physics Particle and Nuclear Physics Physics Physics and Astronomy Quantum Information Technology Radio sources (astronomy) Solid State Physics Spintronics Supermassive black holes Thermal energy Virgo galactic cluster X ray sources |
| title | Constraints on Cosmic Rays Population in the Radio Halo of the M87 Galaxy from Gamma-Ray Observations |
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