Spectral Variation of NLS1 Galaxy PMN J0948+0022

X. N. Sun; Jin Zhang; Y. Lu; E. W. Liang; S. N. Zhang

doi:10.1007/s12036-014-9252-6

Spectral Variation of NLS1 Galaxy PMN J0948+0022

X. N. Sun, Jin Zhang^*, Y. Lu, E. W. Liang, S. N. Zhang

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

Four well-sampled spectral energy distributions (SEDs) of PMN J0948+0022 are fitted with the syn+SSC+EC model to derive the physical parameters of its jets and to investigate the spectral variations of its SEDs. A tentative correlation between the peak luminosity (L_c) and peak frequency (ν_c) of its inverse Compton (IC) bump is found in both the observer and co-moving frames, indicating that the variations of luminosity are accompanied by the spectral shift. A correlation between L_c and δ is found, and thus the magnification of external photon field by the bulk motion of the radiation regions is an essential reason for the spectral variation since, IC bump of PMN J0948+0022 is dominated by the EC process.

Original language	English
Pages (from-to)	457-461
Number of pages	5
Journal	Journal of Astrophysics and Astronomy
Volume	35
Issue number	3
DOIs	https://doi.org/10.1007/s12036-014-9252-6
Publication status	Published - Sept 2014
Externally published	Yes

Keywords

Galaxies: active
galaxies: Seyfert
galaxies: individual: PMN J0948+0022
galaxies: jets
theory
γ-rays

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10.1007/s12036-014-9252-6

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title = "Spectral Variation of NLS1 Galaxy PMN J0948+0022",

abstract = "Four well-sampled spectral energy distributions (SEDs) of PMN J0948+0022 are fitted with the syn+SSC+EC model to derive the physical parameters of its jets and to investigate the spectral variations of its SEDs. A tentative correlation between the peak luminosity (Lc) and peak frequency (νc) of its inverse Compton (IC) bump is found in both the observer and co-moving frames, indicating that the variations of luminosity are accompanied by the spectral shift. A correlation between Lc and δ is found, and thus the magnification of external photon field by the bulk motion of the radiation regions is an essential reason for the spectral variation since, IC bump of PMN J0948+0022 is dominated by the EC process.",

keywords = "Galaxies: active, galaxies: Seyfert, galaxies: individual: PMN J0948+0022, galaxies: jets, theory, γ-rays",

author = "Sun, {X. N.} and Jin Zhang and Y. Lu and Liang, {E. W.} and Zhang, {S. N.}",

note = "Publisher Copyright: {\textcopyright} 2014, Indian Academy of Sciences.",

year = "2014",

month = sep,

doi = "10.1007/s12036-014-9252-6",

language = "English",

volume = "35",

pages = "457--461",

journal = "Journal of Astrophysics and Astronomy",

issn = "0250-6335",

publisher = "Springer India",

number = "3",

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TY - JOUR

T1 - Spectral Variation of NLS1 Galaxy PMN J0948+0022

AU - Sun, X. N.

AU - Zhang, Jin

AU - Lu, Y.

AU - Liang, E. W.

AU - Zhang, S. N.

PY - 2014/9

Y1 - 2014/9

N2 - Four well-sampled spectral energy distributions (SEDs) of PMN J0948+0022 are fitted with the syn+SSC+EC model to derive the physical parameters of its jets and to investigate the spectral variations of its SEDs. A tentative correlation between the peak luminosity (Lc) and peak frequency (νc) of its inverse Compton (IC) bump is found in both the observer and co-moving frames, indicating that the variations of luminosity are accompanied by the spectral shift. A correlation between Lc and δ is found, and thus the magnification of external photon field by the bulk motion of the radiation regions is an essential reason for the spectral variation since, IC bump of PMN J0948+0022 is dominated by the EC process.

AB - Four well-sampled spectral energy distributions (SEDs) of PMN J0948+0022 are fitted with the syn+SSC+EC model to derive the physical parameters of its jets and to investigate the spectral variations of its SEDs. A tentative correlation between the peak luminosity (Lc) and peak frequency (νc) of its inverse Compton (IC) bump is found in both the observer and co-moving frames, indicating that the variations of luminosity are accompanied by the spectral shift. A correlation between Lc and δ is found, and thus the magnification of external photon field by the bulk motion of the radiation regions is an essential reason for the spectral variation since, IC bump of PMN J0948+0022 is dominated by the EC process.

KW - Galaxies: active

KW - galaxies: Seyfert

KW - galaxies: individual: PMN J0948+0022

KW - galaxies: jets

KW - theory

KW - γ-rays

UR - http://www.scopus.com/inward/record.url?scp=84925461058&partnerID=8YFLogxK

U2 - 10.1007/s12036-014-9252-6

DO - 10.1007/s12036-014-9252-6

M3 - Article

AN - SCOPUS:84925461058

SN - 0250-6335

VL - 35

SP - 457

EP - 461

JO - Journal of Astrophysics and Astronomy

JF - Journal of Astrophysics and Astronomy

IS - 3

ER -

Spectral Variation of NLS1 Galaxy PMN J0948+0022

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Keywords

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