3 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core Regions
We present total and linearly polarized 3 mm Global mm-VLBI Array (GMVA; mm-VLBI: Very Long Baseline Interferometry observations at millimetre wavelengths) images of a sample of blazars and radio galaxies from the VLBA-BU-BLAZAR 7 mm monitoring program designed to probe the innermost regions of acti...
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MDPI AG
2017-10-01
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| Series: | Galaxies |
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| Online Access: | https://www.mdpi.com/2075-4434/5/4/67 |
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doaj-466c0d175e224728b023db45c52a65652020-11-25T00:47:43ZengMDPI AGGalaxies2075-44342017-10-01546710.3390/galaxies5040067galaxies50400673 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core RegionsCarolina Casadio0Thomas P. Krichbaum1Alan P. Marscher2Svetlana G. Jorstad3José L. Gómez4Iván Agudo5Uwe Bach6Jae-Young Kim7Jeffrey A. Hodgson8Anton J. Zensus9Max-Planck-Institut für Radioastronomie, Auf dem Hügel, 69, D-53121 Bonn, GermanyMax-Planck-Institut für Radioastronomie, Auf dem Hügel, 69, D-53121 Bonn, GermanyInstitute for Astrophysical Research, Boston University, Boston, MA 02215, USAInstitute for Astrophysical Research, Boston University, Boston, MA 02215, USAInstituto de Astrofísica de Andalucía, CSIC, Apartado 3004, E-18080 Granada, SpainInstituto de Astrofísica de Andalucía, CSIC, Apartado 3004, E-18080 Granada, SpainMax-Planck-Institut für Radioastronomie, Auf dem Hügel, 69, D-53121 Bonn, GermanyMax-Planck-Institut für Radioastronomie, Auf dem Hügel, 69, D-53121 Bonn, GermanyKorea Astronomy and Space Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, KoreaMax-Planck-Institut für Radioastronomie, Auf dem Hügel, 69, D-53121 Bonn, GermanyWe present total and linearly polarized 3 mm Global mm-VLBI Array (GMVA; mm-VLBI: Very Long Baseline Interferometry observations at millimetre wavelengths) images of a sample of blazars and radio galaxies from the VLBA-BU-BLAZAR 7 mm monitoring program designed to probe the innermost regions of active galactic nuclei (AGN) jets and locate the sites of gamma-ray emission observed by the Fermi-LAT. The lower opacity at 3 mm and improved angular resolution—on the order of 50 microarcseconds—allow us to distinguish features in the jet not visible in the 7 mm VLBA data. We also compare two different methods used for the calibration of instrumental polarisation and we analyze the resulting images for some of the sources in the sample.https://www.mdpi.com/2075-4434/5/4/67galaxies: activegalaxies: jetstechniques: high angular resolution |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Carolina Casadio Thomas P. Krichbaum Alan P. Marscher Svetlana G. Jorstad José L. Gómez Iván Agudo Uwe Bach Jae-Young Kim Jeffrey A. Hodgson Anton J. Zensus |
| spellingShingle |
Carolina Casadio Thomas P. Krichbaum Alan P. Marscher Svetlana G. Jorstad José L. Gómez Iván Agudo Uwe Bach Jae-Young Kim Jeffrey A. Hodgson Anton J. Zensus 3 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core Regions Galaxies galaxies: active galaxies: jets techniques: high angular resolution |
| author_facet |
Carolina Casadio Thomas P. Krichbaum Alan P. Marscher Svetlana G. Jorstad José L. Gómez Iván Agudo Uwe Bach Jae-Young Kim Jeffrey A. Hodgson Anton J. Zensus |
| author_sort |
Carolina Casadio |
| title |
3 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core Regions |
| title_short |
3 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core Regions |
| title_full |
3 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core Regions |
| title_fullStr |
3 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core Regions |
| title_full_unstemmed |
3 mm GMVA Observations of Total and Polarized Emission from Blazar and Radio Galaxy Core Regions |
| title_sort |
3 mm gmva observations of total and polarized emission from blazar and radio galaxy core regions |
| publisher |
MDPI AG |
| series |
Galaxies |
| issn |
2075-4434 |
| publishDate |
2017-10-01 |
| description |
We present total and linearly polarized 3 mm Global mm-VLBI Array (GMVA; mm-VLBI: Very Long Baseline Interferometry observations at millimetre wavelengths) images of a sample of blazars and radio galaxies from the VLBA-BU-BLAZAR 7 mm monitoring program designed to probe the innermost regions of active galactic nuclei (AGN) jets and locate the sites of gamma-ray emission observed by the Fermi-LAT. The lower opacity at 3 mm and improved angular resolution—on the order of 50 microarcseconds—allow us to distinguish features in the jet not visible in the 7 mm VLBA data. We also compare two different methods used for the calibration of instrumental polarisation and we analyze the resulting images for some of the sources in the sample. |
| topic |
galaxies: active galaxies: jets techniques: high angular resolution |
| url |
https://www.mdpi.com/2075-4434/5/4/67 |
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