Radio-gamma-ray connection and spectral evolution in 4C +49.22 (S4 1150+49): the Fermi, Swift and Planck view
Abstract
We report the Large Area Telescope on board the Fermi Gamma-ray Space Telescope detected a strong γ-ray flare on 2011 May 15 from a source identified as 4C +49.22, a flat spectrum radio quasar (FSRQ) also known as S4 1150+49. This blazar, characterized by a prominent radio–optical–X-ray jet, was in a low γ-ray activity state during the first years of Fermi observations. Simultaneous observations during the quiescent, outburst and post-flare γ-ray states were obtained by Swift, Planck and optical–IR–radio telescopes (Instituto Nacional de Astrofísica, Óptica y Electrónica, Catalina Sky Survey, Very Long Baseline Array [VLBA], Metsähovi). The flare is observed from microwave to X-ray bands with correlated variability and the Fermi, Swift and Planck data for this FSRQ show some features more typical of BL Lac objects, like the synchrotron peak in the optical band that outshines the thermal blue-bump emission, and the X-ray spectral softening. Multi-epoch VLBA observations show the ejection of a new component close in time with the GeV γ-ray flare. In conclusion, the radio-to-γ-ray spectral energy distribution is modelled and fitted successfully for the outburst and the post-flare epochs using either a single flaring blob with two emission processes (synchrotron self-Compton (SSC), and external-radiation Compton), andmore »
- Authors:
- more »
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- Contributing Org.:
- Fermi-LAT Collaboration; Plank Collaboration
- OSTI Identifier:
- 1356434
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Monthly Notices of the Royal Astronomical Society
- Additional Journal Information:
- Journal Volume: 445; Journal Issue: 4; Journal ID: ISSN 0035-8711
- Publisher:
- Royal Astronomical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; galaxies: active; galaxies: jets; quasars: general; quasars: individual: 4C +49.22; gamma-rays: galaxies; X-rays: galaxies
Citation Formats
Cutini, S., Ciprini, S., Orienti, M., Tramacere, A., D'Ammando, F., Verrecchia, F., Polenta, G., Carrasco, L., D'Elia, V., Giommi, P., Gonzalez-Nuevo, J., Grandi, P., Harrison, D., Hays, E., Larsson, S., Lahteenmaki, A., Leon-Tavares, J., Lopez-Caniego, M., Natoli, P., Ojha, R., Partridge, B., Porras, A., Reyes, L., Recillas, E., and Torresi, E. Radio-gamma-ray connection and spectral evolution in 4C +49.22 (S4 1150+49): the Fermi, Swift and Planck view. United States: N. p., 2014.
Web. doi:10.1093/mnras/stu2011.
Cutini, S., Ciprini, S., Orienti, M., Tramacere, A., D'Ammando, F., Verrecchia, F., Polenta, G., Carrasco, L., D'Elia, V., Giommi, P., Gonzalez-Nuevo, J., Grandi, P., Harrison, D., Hays, E., Larsson, S., Lahteenmaki, A., Leon-Tavares, J., Lopez-Caniego, M., Natoli, P., Ojha, R., Partridge, B., Porras, A., Reyes, L., Recillas, E., & Torresi, E. Radio-gamma-ray connection and spectral evolution in 4C +49.22 (S4 1150+49): the Fermi, Swift and Planck view. United States. https://doi.org/10.1093/mnras/stu2011
Cutini, S., Ciprini, S., Orienti, M., Tramacere, A., D'Ammando, F., Verrecchia, F., Polenta, G., Carrasco, L., D'Elia, V., Giommi, P., Gonzalez-Nuevo, J., Grandi, P., Harrison, D., Hays, E., Larsson, S., Lahteenmaki, A., Leon-Tavares, J., Lopez-Caniego, M., Natoli, P., Ojha, R., Partridge, B., Porras, A., Reyes, L., Recillas, E., and Torresi, E. Fri .
"Radio-gamma-ray connection and spectral evolution in 4C +49.22 (S4 1150+49): the Fermi, Swift and Planck view". United States. https://doi.org/10.1093/mnras/stu2011. https://www.osti.gov/servlets/purl/1356434.
@article{osti_1356434,
title = {Radio-gamma-ray connection and spectral evolution in 4C +49.22 (S4 1150+49): the Fermi, Swift and Planck view},
author = {Cutini, S. and Ciprini, S. and Orienti, M. and Tramacere, A. and D'Ammando, F. and Verrecchia, F. and Polenta, G. and Carrasco, L. and D'Elia, V. and Giommi, P. and Gonzalez-Nuevo, J. and Grandi, P. and Harrison, D. and Hays, E. and Larsson, S. and Lahteenmaki, A. and Leon-Tavares, J. and Lopez-Caniego, M. and Natoli, P. and Ojha, R. and Partridge, B. and Porras, A. and Reyes, L. and Recillas, E. and Torresi, E.},
abstractNote = {We report the Large Area Telescope on board the Fermi Gamma-ray Space Telescope detected a strong γ-ray flare on 2011 May 15 from a source identified as 4C +49.22, a flat spectrum radio quasar (FSRQ) also known as S4 1150+49. This blazar, characterized by a prominent radio–optical–X-ray jet, was in a low γ-ray activity state during the first years of Fermi observations. Simultaneous observations during the quiescent, outburst and post-flare γ-ray states were obtained by Swift, Planck and optical–IR–radio telescopes (Instituto Nacional de Astrofísica, Óptica y Electrónica, Catalina Sky Survey, Very Long Baseline Array [VLBA], Metsähovi). The flare is observed from microwave to X-ray bands with correlated variability and the Fermi, Swift and Planck data for this FSRQ show some features more typical of BL Lac objects, like the synchrotron peak in the optical band that outshines the thermal blue-bump emission, and the X-ray spectral softening. Multi-epoch VLBA observations show the ejection of a new component close in time with the GeV γ-ray flare. In conclusion, the radio-to-γ-ray spectral energy distribution is modelled and fitted successfully for the outburst and the post-flare epochs using either a single flaring blob with two emission processes (synchrotron self-Compton (SSC), and external-radiation Compton), and a two-zone model with SSC-only mechanism.},
doi = {10.1093/mnras/stu2011},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 4,
volume = 445,
place = {United States},
year = {Fri Nov 07 00:00:00 EST 2014},
month = {Fri Nov 07 00:00:00 EST 2014}
}
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Works referencing / citing this record:
The large gamma-ray flare of the flat-spectrum radio quasar PKS 0346−27
journal, July 2019
- Angioni, R.; Nesci, R.; Finke, J. D.
- Astronomy & Astrophysics, Vol. 627
Radio loudness along the quasar main sequence
journal, September 2019
- Ganci, V.; Marziani, P.; D’Onofrio, M.
- Astronomy & Astrophysics, Vol. 630
The γ -ray sky seen at X-ray energies: I. Searching for the connection between X-rays and γ -rays in Fermi BL Lac objects
journal, November 2019
- Marchesini, E. J.; Paggi, A.; Massaro, F.
- Astronomy & Astrophysics, Vol. 631
Exploring cosmic origins with CORE: Extragalactic sources in cosmic microwave background maps
journal, April 2018
- Zotti, G. De; González-Nuevo, J.; Lopez-Caniego, M.
- Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 04
ALMA Band 3 polarimetric follow-up of a complete sample of faint PACO sources
journal, July 2019
- Galluzzi, V.; Puglisi, G.; Burkutean, S.
- Monthly Notices of the Royal Astronomical Society, Vol. 489, Issue 1
Leptonic modelling of Ton 599 in flare and quiescent states
journal, December 2019
- Patel, S. R.; Chitnis, V. R.
- Monthly Notices of the Royal Astronomical Society, Vol. 492, Issue 1
Examining the High-energy Radiation Mechanisms of Knots and Hotspots in Active Galactic Nucleus Jets
journal, April 2018
- Zhang, Jin; Du, Shen-shi; Guo, Sheng-Chu
- The Astrophysical Journal, Vol. 858, Issue 1
Jet Radiation Properties of 4C +49.22: from the Core to Large-scale Knots
journal, September 2018
- Zhang, Jin; Zhang, Hai-Ming; Yao, Su
- The Astrophysical Journal, Vol. 865, Issue 2
Examining High Energy Radiation Mechanisms of Knots and Hotspots in Active Galactic Nucleus Jets
text, January 2018
- Zhang, Jin; Du, Shen-shi; Guo, Sheng-Chu
- arXiv
Exploring cosmic origins with CORE: Extragalactic sources in cosmic microwave background maps
journal, April 2018
- Zotti, G. De; González-Nuevo, J.; Lopez-Caniego, M.
- Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 04