SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars
We report on recent results froma target-of-opportunity program to obtain spectropolarimetry observations with the Southern African Large Telescope (SALT) on flaring gamma-ray blazars. SALT spectropolarimetry and contemporaneous multi-wavelength spectral energy distribution (SED) data are being mode...
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| Format: | Article |
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MDPI AG
2017-09-01
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| Series: | Galaxies |
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| Online Access: | https://www.mdpi.com/2075-4434/5/3/52 |
| _version_ | 1811305213417488384 |
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| author | Markus Böttcher Brian van Soelen Richard J. Britto David A. H. Buckley Johannes P. Marais Hester Schutte |
| author_facet | Markus Böttcher Brian van Soelen Richard J. Britto David A. H. Buckley Johannes P. Marais Hester Schutte |
| author_sort | Markus Böttcher |
| collection | DOAJ |
| description | We report on recent results froma target-of-opportunity program to obtain spectropolarimetry observations with the Southern African Large Telescope (SALT) on flaring gamma-ray blazars. SALT spectropolarimetry and contemporaneous multi-wavelength spectral energy distribution (SED) data are being modelled self-consistently with a leptonic single-zone model. Such modeling provides an accurate estimate of the degree of order of the magnetic field in the emission region and the thermal contributions (from the host galaxy and the accretion disk) to the SED, thus putting strong constraints on the physical parameters of the gamma-ray emitting region. For the specific case of the γ -ray blazar 4C+01.02, we demonstrate that the combined SED and spectropolarimetry modeling constrains the mass of the central black hole in this blazar to M BH ∼ 10 9 M ⊙ . |
| first_indexed | 2024-04-13T08:22:39Z |
| format | Article |
| id | doaj.art-7e1808d20dd747ca88ff7498d5f17d81 |
| institution | Directory Open Access Journal |
| issn | 2075-4434 |
| language | English |
| last_indexed | 2024-04-13T08:22:39Z |
| publishDate | 2017-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Galaxies |
| spelling | doaj.art-7e1808d20dd747ca88ff7498d5f17d812022-12-22T02:54:37ZengMDPI AGGalaxies2075-44342017-09-01535210.3390/galaxies5030052galaxies5030052SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of BlazarsMarkus Böttcher0Brian van Soelen1Richard J. Britto2David A. H. Buckley3Johannes P. Marais4Hester Schutte5Centre for Space Research, North-West University, Potchefstroom 2520, South AfricaDepartment of Physics, University of the Free State, Bloemfontein 9300, South AfricaDepartment of Physics, University of the Free State, Bloemfontein 9300, South AfricaSouth African Astronomical Observatory, Cape Town—Observatory 7935, South AfricaDepartment of Physics, University of the Free State, Bloemfontein 9300, South AfricaCentre for Space Research, North-West University, Potchefstroom 2520, South AfricaWe report on recent results froma target-of-opportunity program to obtain spectropolarimetry observations with the Southern African Large Telescope (SALT) on flaring gamma-ray blazars. SALT spectropolarimetry and contemporaneous multi-wavelength spectral energy distribution (SED) data are being modelled self-consistently with a leptonic single-zone model. Such modeling provides an accurate estimate of the degree of order of the magnetic field in the emission region and the thermal contributions (from the host galaxy and the accretion disk) to the SED, thus putting strong constraints on the physical parameters of the gamma-ray emitting region. For the specific case of the γ -ray blazar 4C+01.02, we demonstrate that the combined SED and spectropolarimetry modeling constrains the mass of the central black hole in this blazar to M BH ∼ 10 9 M ⊙ .https://www.mdpi.com/2075-4434/5/3/52active galaxies: blazarsgamma-rayspolarization: opticalspectropolarimetry |
| spellingShingle | Markus Böttcher Brian van Soelen Richard J. Britto David A. H. Buckley Johannes P. Marais Hester Schutte SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars Galaxies active galaxies: blazars gamma-rays polarization: optical spectropolarimetry |
| title | SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars |
| title_full | SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars |
| title_fullStr | SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars |
| title_full_unstemmed | SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars |
| title_short | SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars |
| title_sort | salt spectropolarimetry and self consistent sed and polarization modeling of blazars |
| topic | active galaxies: blazars gamma-rays polarization: optical spectropolarimetry |
| url | https://www.mdpi.com/2075-4434/5/3/52 |
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