X-ray emission from the quasar PKS 1127-145: Comptonized infrared photons on parsec scales

Michał Błazejowski; Aneta Siemiginowska; Marek Sikora; Rafał Moderski; Jill Bechtold

doi:10.1086/381497

X-ray emission from the quasar PKS 1127-145: Comptonized infrared photons on parsec scales

Michał Błazejowski, Aneta Siemiginowska, Marek Sikora, Rafał Moderski, Jill Bechtold

Steward Observatory

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We model the broadband spectral energy distribution of the innermost "core-jet" region of the redshift z = 1.187 quasar PKS 1127-145. We propose a scenario in which the high-energy photons are produced via the Compton scattering of thermal IR radiation by the relativistic particles in a parsec-scale jet. The high-energy spectrum, together with the observed radio variability and superluminal expansion, suggest that PKS 1127-145 may be a blazar, despite the fact that its optical/UV component is likely dominated by thermal radiation from an accretion disk. The relation of PKS 1127-145 to MeV blazars is discussed.

Original language	English (US)
Pages (from-to)	L27-L30
Journal	Astrophysical Journal
Volume	600
Issue number	1 II
DOIs	https://doi.org/10.1086/381497
State	Published - Jan 1 2004

Keywords

Gamma rays: theory
Infrared: galaxies
Quasars: individual (PKS 1127-145)
X-rays: general

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1086/381497

Cite this

@article{12f9bdac8afb4ad18f895ce5c777ab4f,

title = "X-ray emission from the quasar PKS 1127-145: Comptonized infrared photons on parsec scales",

abstract = "We model the broadband spectral energy distribution of the innermost {"}core-jet{"} region of the redshift z = 1.187 quasar PKS 1127-145. We propose a scenario in which the high-energy photons are produced via the Compton scattering of thermal IR radiation by the relativistic particles in a parsec-scale jet. The high-energy spectrum, together with the observed radio variability and superluminal expansion, suggest that PKS 1127-145 may be a blazar, despite the fact that its optical/UV component is likely dominated by thermal radiation from an accretion disk. The relation of PKS 1127-145 to MeV blazars is discussed.",

keywords = "Gamma rays: theory, Infrared: galaxies, Quasars: individual (PKS 1127-145), X-rays: general",

author = "Micha{\l} B{\l}azejowski and Aneta Siemiginowska and Marek Sikora and Rafa{\l} Moderski and Jill Bechtold",

year = "2004",

month = jan,

day = "1",

doi = "10.1086/381497",

language = "English (US)",

volume = "600",

pages = "L27--L30",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1 II",

}

TY - JOUR

T1 - X-ray emission from the quasar PKS 1127-145

T2 - Comptonized infrared photons on parsec scales

AU - Błazejowski, Michał

AU - Siemiginowska, Aneta

AU - Sikora, Marek

AU - Moderski, Rafał

AU - Bechtold, Jill

PY - 2004/1/1

Y1 - 2004/1/1

N2 - We model the broadband spectral energy distribution of the innermost "core-jet" region of the redshift z = 1.187 quasar PKS 1127-145. We propose a scenario in which the high-energy photons are produced via the Compton scattering of thermal IR radiation by the relativistic particles in a parsec-scale jet. The high-energy spectrum, together with the observed radio variability and superluminal expansion, suggest that PKS 1127-145 may be a blazar, despite the fact that its optical/UV component is likely dominated by thermal radiation from an accretion disk. The relation of PKS 1127-145 to MeV blazars is discussed.

AB - We model the broadband spectral energy distribution of the innermost "core-jet" region of the redshift z = 1.187 quasar PKS 1127-145. We propose a scenario in which the high-energy photons are produced via the Compton scattering of thermal IR radiation by the relativistic particles in a parsec-scale jet. The high-energy spectrum, together with the observed radio variability and superluminal expansion, suggest that PKS 1127-145 may be a blazar, despite the fact that its optical/UV component is likely dominated by thermal radiation from an accretion disk. The relation of PKS 1127-145 to MeV blazars is discussed.

KW - Gamma rays: theory

KW - Infrared: galaxies

KW - Quasars: individual (PKS 1127-145)

KW - X-rays: general

UR - http://www.scopus.com/inward/record.url?scp=1642334785&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1642334785&partnerID=8YFLogxK

U2 - 10.1086/381497

DO - 10.1086/381497

M3 - Article

AN - SCOPUS:1642334785

SN - 0004-637X

VL - 600

SP - L27-L30

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 II

ER -

X-ray emission from the quasar PKS 1127-145: Comptonized infrared photons on parsec scales

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this