Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation
The flat spectrum radio quasar PKS 1510−089 is one of the most active blazars across the entire electromagnetic spectrum, displaying periods of flaring activity. This study explores its spectral variability over a decade. By employing the nonthermal dominance parameter, we analyze the H β and λ 5100...
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2025-01-01
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| Online Access: | https://doi.org/10.3847/1538-4357/ada38b |
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| author | Alfredo Amador-Portes Vahram Chavushyan Víctor M. Patiño-Álvarez José Ramón-Valdés |
| author_facet | Alfredo Amador-Portes Vahram Chavushyan Víctor M. Patiño-Álvarez José Ramón-Valdés |
| author_sort | Alfredo Amador-Portes |
| collection | DOAJ |
| description | The flat spectrum radio quasar PKS 1510−089 is one of the most active blazars across the entire electromagnetic spectrum, displaying periods of flaring activity. This study explores its spectral variability over a decade. By employing the nonthermal dominance parameter, we analyze the H β and λ 5100 continuum light curves, as well as the FWHM of the H β emission line, to identify whether the primary source of the continuum emission is the accretion disk or the jet during activity periods. Our results show an anticorrelation between the FWHM and the luminosity of the H β emission line across all data sets. This indicates that variations in H β luminosity consistently reflect the canonical broad-line region (BLR), irrespective of whether the primary ionizing source is the accretion disk or the jet. The anticorrelation persisted when comparing the FWHM of H β against the luminosity at λ 5100 in the disk dominance regime. These findings, along with the observation that flaring events in the λ 5100 continuum, attributed to the jet, coincide with flares in the H β emission line, suggest that the base of the jet is located within the BLR. Based on the 219 spectra within the disk dominance regime, we estimated a mean black hole mass of M _BH = 2.85 ± 0.37 × 10 ^8 M _⊙ . |
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| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-f8474489699b4f25baecd719099f902b2025-01-29T06:06:57ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01979222710.3847/1538-4357/ada38bUnveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass EstimationAlfredo Amador-Portes0https://orcid.org/0009-0009-6341-0270Vahram Chavushyan1https://orcid.org/0000-0002-2558-0967Víctor M. Patiño-Álvarez2https://orcid.org/0000-0002-5442-818XJosé Ramón-Valdés3https://orcid.org/0000-0003-4513-7863Instituto Nacional de Astrofísica , Óptica y Electrónica, Luis Enrique Erro #1, Tonantzintla Puebla, C.P. 72840, México ; aamador@inaoe.comInstituto Nacional de Astrofísica , Óptica y Electrónica, Luis Enrique Erro #1, Tonantzintla Puebla, C.P. 72840, México ; aamador@inaoe.comInstituto Nacional de Astrofísica , Óptica y Electrónica, Luis Enrique Erro #1, Tonantzintla Puebla, C.P. 72840, México ; aamador@inaoe.com; Max-Planck-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, GermanyInstituto Nacional de Astrofísica , Óptica y Electrónica, Luis Enrique Erro #1, Tonantzintla Puebla, C.P. 72840, México ; aamador@inaoe.comThe flat spectrum radio quasar PKS 1510−089 is one of the most active blazars across the entire electromagnetic spectrum, displaying periods of flaring activity. This study explores its spectral variability over a decade. By employing the nonthermal dominance parameter, we analyze the H β and λ 5100 continuum light curves, as well as the FWHM of the H β emission line, to identify whether the primary source of the continuum emission is the accretion disk or the jet during activity periods. Our results show an anticorrelation between the FWHM and the luminosity of the H β emission line across all data sets. This indicates that variations in H β luminosity consistently reflect the canonical broad-line region (BLR), irrespective of whether the primary ionizing source is the accretion disk or the jet. The anticorrelation persisted when comparing the FWHM of H β against the luminosity at λ 5100 in the disk dominance regime. These findings, along with the observation that flaring events in the λ 5100 continuum, attributed to the jet, coincide with flares in the H β emission line, suggest that the base of the jet is located within the BLR. Based on the 219 spectra within the disk dominance regime, we estimated a mean black hole mass of M _BH = 2.85 ± 0.37 × 10 ^8 M _⊙ .https://doi.org/10.3847/1538-4357/ada38bGalaxy jetsActive galactic nucleiEmission line galaxiesFlat-spectrum radio quasarsSupermassive black holes |
| spellingShingle | Alfredo Amador-Portes Vahram Chavushyan Víctor M. Patiño-Álvarez José Ramón-Valdés Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation The Astrophysical Journal Galaxy jets Active galactic nuclei Emission line galaxies Flat-spectrum radio quasars Supermassive black holes |
| title | Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation |
| title_full | Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation |
| title_fullStr | Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation |
| title_full_unstemmed | Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation |
| title_short | Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation |
| title_sort | unveiling the emission mechanisms of blazar pks 1510 089 ii jet blr connection and black hole mass estimation |
| topic | Galaxy jets Active galactic nuclei Emission line galaxies Flat-spectrum radio quasars Supermassive black holes |
| url | https://doi.org/10.3847/1538-4357/ada38b |
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