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Emission from stellar wind bubbles interacting with an extragalactic jet.

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Title: Emission from stellar wind bubbles interacting with an extragalactic jet.
Authors: Torres-Albà, N.1 ntorresalba@icc.ub.edu, Bosch-Ramon, V.1 vbosch@fqa.ub.edu
Source: International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology. Jul2018, Vol. 27 Issue 10, pN.PAG-N.PAG. 8p.
Subjects: Stellar winds, Extragalactic jets (Astrophysics), Relativistic astrophysics, Non-thermal plasmas, Equilibrium
Abstract: The inner regions of galaxies are rich in gas and stars that can interact with the jet and produce high-energy nonthermal emission, as well as significantly mass-load the jet. In this work, we focus on a population of stars with strong winds, which accumulate material around the star outside the jet, confined by pressure equilibrium with the environment, in the form of a bubble. When these bubbles reach the jet, a shock is produced in the external bubble layer, which may cause part of the material to be peeled away and carried upstream at the contact discontinuity (CD). Part of the remaining bubble may penetrate the jet, and eventually detach and accelerate up to relativistic speeds, producing nonthermal emission. We conclude that, for the studied population, these events are unlikely to mass-load the jet significantly and affect it dynamically. Our results show that the generated emission is potentially detectable for nearby sources, though not as persistent radiation, but rather in the form of long “flares” lasting for a few years, and with an event rate of about a few per century. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 130980511
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  Data: Emission from stellar wind bubbles interacting with an extragalactic jet.
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  Data: <searchLink fieldCode="AR" term="%22Torres-Albà%2C+N%2E%22">Torres-Albà, N.</searchLink><relatesTo>1</relatesTo><i> ntorresalba@icc.ub.edu</i><br /><searchLink fieldCode="AR" term="%22Bosch-Ramon%2C+V%2E%22">Bosch-Ramon, V.</searchLink><relatesTo>1</relatesTo><i> vbosch@fqa.ub.edu</i>
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  Data: <searchLink fieldCode="DE" term="%22Stellar+winds%22">Stellar winds</searchLink><br /><searchLink fieldCode="DE" term="%22Extragalactic+jets+%28Astrophysics%29%22">Extragalactic jets (Astrophysics)</searchLink><br /><searchLink fieldCode="DE" term="%22Relativistic+astrophysics%22">Relativistic astrophysics</searchLink><br /><searchLink fieldCode="DE" term="%22Non-thermal+plasmas%22">Non-thermal plasmas</searchLink><br /><searchLink fieldCode="DE" term="%22Equilibrium%22">Equilibrium</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: The inner regions of galaxies are rich in gas and stars that can interact with the jet and produce high-energy nonthermal emission, as well as significantly mass-load the jet. In this work, we focus on a population of stars with strong winds, which accumulate material around the star outside the jet, confined by pressure equilibrium with the environment, in the form of a bubble. When these bubbles reach the jet, a shock is produced in the external bubble layer, which may cause part of the material to be peeled away and carried upstream at the contact discontinuity (CD). Part of the remaining bubble may penetrate the jet, and eventually detach and accelerate up to relativistic speeds, producing nonthermal emission. We conclude that, for the studied population, these events are unlikely to mass-load the jet significantly and affect it dynamically. Our results show that the generated emission is potentially detectable for nearby sources, though not as persistent radiation, but rather in the form of long “flares” lasting for a few years, and with an event rate of about a few per century. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1142/S0218271818440182
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 8
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Stellar winds
        Type: general
      – SubjectFull: Extragalactic jets (Astrophysics)
        Type: general
      – SubjectFull: Relativistic astrophysics
        Type: general
      – SubjectFull: Non-thermal plasmas
        Type: general
      – SubjectFull: Equilibrium
        Type: general
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      – TitleFull: Emission from stellar wind bubbles interacting with an extragalactic jet.
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              Text: Jul2018
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              Y: 2018
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