Probing the origin of VHE emission from M 87 with MWL observations in 2010
The large majority of extragalactic very high energy (VHE; E>100 GeV) sources belongs to the class of active galactic nuclei (AGN), in particular the BL Lac sub-class. AGNs are characterized by an extremely bright and compact emission region, powered by a super-massive black hole (SMBH) and an ac...
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| description | The large majority of extragalactic very high energy (VHE; E>100 GeV) sources belongs to the class of active galactic nuclei (AGN), in particular the BL Lac sub-class. AGNs are characterized by an extremely bright and compact emission region, powered by a super-massive black hole (SMBH) and an accretion disk, and relativistic outflows (jets) detected all across the electro-magnetic spectrum. In BL Lac sources the jet axis is oriented close to the line of sight, giving rise to a relativistic boosting of the emission. In radio galaxies, on the other hand, the jet makes a larger angle to the line of sight allowing to resolve the central core and the jet in great details. The giant radio galaxy M 87 with its proximity (1 6Mpc) and its very massive black hole ((3-6) x 10^9 M_solar) provides a unique laboratory to investigate VHE emission in such objects and thereby probe particle acceleration to relativistic energies near SMBH and in jets. M 87 has been established as a VHE emitter since 2005. The VHE emission displays strong variability on time-scales as short as a day. It has been subject of a large joint VHE and multi-wavelength (MWL) monitoring campaign in 2008, where a rise in the 43 GHz VLBA radio emission of the innermost region (core) was found to coincide with a flaring activity at VHE. This had been interpreted as a strong indication that the VHE emission is produced in the direct vicinity of the SMBH black hole. In 2010 again a flare at VHE was detected triggering further MWL observations with the VLBA, Chandra, and other instruments. At the same time M 87 was also observed with the Fermi-LAT telescope at GeV energies and the European VLBI Network (EVN). In this contribution preliminary results from the campaign will be presented. |
| doi_str_mv | 10.48550/arxiv.1203.5953 |
| format | Article |
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AGNs are characterized by an extremely bright and compact emission region, powered by a super-massive black hole (SMBH) and an accretion disk, and relativistic outflows (jets) detected all across the electro-magnetic spectrum. In BL Lac sources the jet axis is oriented close to the line of sight, giving rise to a relativistic boosting of the emission. In radio galaxies, on the other hand, the jet makes a larger angle to the line of sight allowing to resolve the central core and the jet in great details. The giant radio galaxy M 87 with its proximity (1 6Mpc) and its very massive black hole ((3-6) x 10^9 M_solar) provides a unique laboratory to investigate VHE emission in such objects and thereby probe particle acceleration to relativistic energies near SMBH and in jets. M 87 has been established as a VHE emitter since 2005. The VHE emission displays strong variability on time-scales as short as a day. It has been subject of a large joint VHE and multi-wavelength (MWL) monitoring campaign in 2008, where a rise in the 43 GHz VLBA radio emission of the innermost region (core) was found to coincide with a flaring activity at VHE. This had been interpreted as a strong indication that the VHE emission is produced in the direct vicinity of the SMBH black hole. In 2010 again a flare at VHE was detected triggering further MWL observations with the VLBA, Chandra, and other instruments. At the same time M 87 was also observed with the Fermi-LAT telescope at GeV energies and the European VLBI Network (EVN). In this contribution preliminary results from the campaign will be presented.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1203.5953</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Accretion disks ; Active galactic nuclei ; Emission analysis ; Emitters ; High energy astronomy ; Line of sight ; Outflow ; Particle acceleration ; Physics - Cosmology and Nongalactic Astrophysics ; Radio emission ; Radio galaxies ; Relativism ; Relativistic effects ; Relativistic particles</subject><ispartof>arXiv.org, 2012-03</ispartof><rights>2012. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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AGNs are characterized by an extremely bright and compact emission region, powered by a super-massive black hole (SMBH) and an accretion disk, and relativistic outflows (jets) detected all across the electro-magnetic spectrum. In BL Lac sources the jet axis is oriented close to the line of sight, giving rise to a relativistic boosting of the emission. In radio galaxies, on the other hand, the jet makes a larger angle to the line of sight allowing to resolve the central core and the jet in great details. The giant radio galaxy M 87 with its proximity (1 6Mpc) and its very massive black hole ((3-6) x 10^9 M_solar) provides a unique laboratory to investigate VHE emission in such objects and thereby probe particle acceleration to relativistic energies near SMBH and in jets. M 87 has been established as a VHE emitter since 2005. The VHE emission displays strong variability on time-scales as short as a day. It has been subject of a large joint VHE and multi-wavelength (MWL) monitoring campaign in 2008, where a rise in the 43 GHz VLBA radio emission of the innermost region (core) was found to coincide with a flaring activity at VHE. This had been interpreted as a strong indication that the VHE emission is produced in the direct vicinity of the SMBH black hole. In 2010 again a flare at VHE was detected triggering further MWL observations with the VLBA, Chandra, and other instruments. At the same time M 87 was also observed with the Fermi-LAT telescope at GeV energies and the European VLBI Network (EVN). In this contribution preliminary results from the campaign will be presented.</description><subject>Accretion disks</subject><subject>Active galactic nuclei</subject><subject>Emission analysis</subject><subject>Emitters</subject><subject>High energy astronomy</subject><subject>Line of sight</subject><subject>Outflow</subject><subject>Particle acceleration</subject><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><subject>Radio emission</subject><subject>Radio galaxies</subject><subject>Relativism</subject><subject>Relativistic effects</subject><subject>Relativistic particles</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj0tPAjEUhRsTEwmyd2WauB68bed22qUh-ApEF0SXk5ZpoUSm2A6o_95BXJ3FeeR8hFwxGJcKEW5N-g6HMeMgxqhRnJEBF4IVquT8goxy3gAAlxVHFAPy_JqiDe2KdmtHYwqr0NLo6dvjlLptyDnElvoUt3ROVUW_Qrem8_cZjTa7dDBdb2faVzgwuCTn3nxkN_rXIVncTxeTx2L28vA0uZsVBhkW2pr-ZsPLxqOuKu90WS65twAo0BjLtRSs9NwslUarpBNMugaYrRotjTRiSK5Ps3-c9S6FrUk_9ZG3PvL2gZtTYJfi597lrt7EfWr7SzUHJUEpxlD8AmpkVX4</recordid><startdate>20120327</startdate><enddate>20120327</enddate><creator>Raue, Martin</creator><creator>Stawarz, Lukasz</creator><creator>Mazin, Daniel</creator><creator>Pierre, Colin</creator><creator>Hui, Michelle</creator><creator>Beilicke, Matthias</creator><creator>Walker, Craig</creator><creator>the H E S S</creator><creator>MAGIC</creator><creator>VERITAS</creator><creator>Fermi-LAT Collaborations</creator><creator>the M 87 MWL Monitoring Teams</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20120327</creationdate><title>Probing the origin of VHE emission from M 87 with MWL observations in 2010</title><author>Raue, Martin ; Stawarz, Lukasz ; Mazin, Daniel ; Pierre, Colin ; Hui, Michelle ; Beilicke, Matthias ; Walker, Craig ; the H E S S ; MAGIC ; VERITAS ; Fermi-LAT Collaborations ; the M 87 MWL Monitoring Teams</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a515-9ba485d24df5977fe944c2fb00535aab296314f2ac895b86e316ed01b7d96a6a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Accretion disks</topic><topic>Active galactic nuclei</topic><topic>Emission analysis</topic><topic>Emitters</topic><topic>High energy astronomy</topic><topic>Line of sight</topic><topic>Outflow</topic><topic>Particle acceleration</topic><topic>Physics - Cosmology and Nongalactic Astrophysics</topic><topic>Radio emission</topic><topic>Radio galaxies</topic><topic>Relativism</topic><topic>Relativistic effects</topic><topic>Relativistic particles</topic><toplevel>online_resources</toplevel><creatorcontrib>Raue, Martin</creatorcontrib><creatorcontrib>Stawarz, Lukasz</creatorcontrib><creatorcontrib>Mazin, Daniel</creatorcontrib><creatorcontrib>Pierre, Colin</creatorcontrib><creatorcontrib>Hui, Michelle</creatorcontrib><creatorcontrib>Beilicke, Matthias</creatorcontrib><creatorcontrib>Walker, Craig</creatorcontrib><creatorcontrib>the H E S S</creatorcontrib><creatorcontrib>MAGIC</creatorcontrib><creatorcontrib>VERITAS</creatorcontrib><creatorcontrib>Fermi-LAT Collaborations</creatorcontrib><creatorcontrib>the M 87 MWL Monitoring Teams</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Raue, Martin</au><au>Stawarz, Lukasz</au><au>Mazin, Daniel</au><au>Pierre, Colin</au><au>Hui, Michelle</au><au>Beilicke, Matthias</au><au>Walker, Craig</au><au>the H E S S</au><au>MAGIC</au><au>VERITAS</au><au>Fermi-LAT Collaborations</au><au>the M 87 MWL Monitoring Teams</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Probing the origin of VHE emission from M 87 with MWL observations in 2010</atitle><jtitle>arXiv.org</jtitle><date>2012-03-27</date><risdate>2012</risdate><eissn>2331-8422</eissn><abstract>The large majority of extragalactic very high energy (VHE; 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AGNs are characterized by an extremely bright and compact emission region, powered by a super-massive black hole (SMBH) and an accretion disk, and relativistic outflows (jets) detected all across the electro-magnetic spectrum. In BL Lac sources the jet axis is oriented close to the line of sight, giving rise to a relativistic boosting of the emission. In radio galaxies, on the other hand, the jet makes a larger angle to the line of sight allowing to resolve the central core and the jet in great details. The giant radio galaxy M 87 with its proximity (1 6Mpc) and its very massive black hole ((3-6) x 10^9 M_solar) provides a unique laboratory to investigate VHE emission in such objects and thereby probe particle acceleration to relativistic energies near SMBH and in jets. M 87 has been established as a VHE emitter since 2005. The VHE emission displays strong variability on time-scales as short as a day. It has been subject of a large joint VHE and multi-wavelength (MWL) monitoring campaign in 2008, where a rise in the 43 GHz VLBA radio emission of the innermost region (core) was found to coincide with a flaring activity at VHE. This had been interpreted as a strong indication that the VHE emission is produced in the direct vicinity of the SMBH black hole. In 2010 again a flare at VHE was detected triggering further MWL observations with the VLBA, Chandra, and other instruments. At the same time M 87 was also observed with the Fermi-LAT telescope at GeV energies and the European VLBI Network (EVN). In this contribution preliminary results from the campaign will be presented.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1203.5953</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Accretion disks Active galactic nuclei Emission analysis Emitters High energy astronomy Line of sight Outflow Particle acceleration Physics - Cosmology and Nongalactic Astrophysics Radio emission Radio galaxies Relativism Relativistic effects Relativistic particles |
| title | Probing the origin of VHE emission from M 87 with MWL observations in 2010 |
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