Emission lines properties of the radio-loud quasar LAMOST J1131+3114

The radio-loud quasar LAMOST J1131+3114 (Ton 580, B2 1128+315), showing asymmetrical profile in Hβ and [O III] lines, has been selected from the LAMOST Pilot Survey for further study. We present an analysis of its emission lines by means of multiple Gaussian fitting, performed on LAMOST, Apache Poin...

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Published inAstronomy and astrophysics (Berlin) Vol. 564; pp. A89 - np
Main Authors Shi, Z. X., Comte, G., Luo, A. L., Zhao, Y. H., Zhao, J. K., Oswalt, T. D., Wu, F. C.
Format Journal Article
LanguageEnglish
Published EDP Sciences 01.04.2014
Subjects
Astronomy
Astrophysics
Asymmetry
Diagnostic systems
galaxies: interactions
galaxies: jets
galaxies: kinematics and dynamics
Gaussian
Pilots
Quasars
quasars: emission lines
quasars: individual: LAMOST J1131+3114
Sciences of the Universe
Spectral emissivity
Online AccessGet full text
ISSN0004-6361
1432-0746
DOI10.1051/0004-6361/201321750

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Abstract The radio-loud quasar LAMOST J1131+3114 (Ton 580, B2 1128+315), showing asymmetrical profile in Hβ and [O III] lines, has been selected from the LAMOST Pilot Survey for further study. We present an analysis of its emission lines by means of multiple Gaussian fitting, performed on LAMOST, Apache Point Observatory, and archival spectra. The broad line region, with an Hβ line of FWHM ~ 4000 km s-1 has been fit with a double Gaussian, one of which is very broad and redshifted from the reference frame. The object is a likely Population B quasar. The [O III] λλ4959,5007 lines profiles of the source have been formally fit with two Gaussian components, one of which is as broad as ~700 km s-1. This broader component, if physically meaningful, appears to be subject to moderate velocity shock excitation. The forbidden line ratios correspond to a poorly populated area in standard diagnostic diagrams of AGN narrow line regions.
AbstractList The radio-loud quasar LAMOST J1131+3114 (Ton 580, B2 1128+315), showing asymmetrical profile in H beta and [OIII] lines, has been selected from the LAMOST Pilot Survey for further study. We present an analysis of its emission lines by means of multiple Gaussian fitting, performed on LAMOST, Apache Point Observatory, and archival spectra. The broad line region, with an H beta line of FWHM ~4000 km s super(-1) has been fit with a double Gaussian, one of which is very broad and redshifted from the reference frame. The object is a likely Population B quasar. The [OIII] [lamda][lamda]4959,5007 lines profiles of the source have been formally fit with two Gaussian components, one of which is as broad as ~700 km s super(-1). This broader component, if physically meaningful, appears to be subject to moderate velocity shock excitation. The forbidden line ratios correspond to a poorly populated area in standard diagnostic diagrams of AGN narrow line regions.
The radio-loud quasar LAMOST J1131+3114 (Ton 580, B2 1128+315), showing asymmetrical profile in H beta and [OIII] lines, has been selected from the LAMOST Pilot Survey for further study. We present an analysis of its emission lines by means of multiple Gaussian fitting, performed on LAMOST, Apache Point Observatory, and archival spectra. The broad line region, with an H beta line of FWHM similar to 4000 km s(-1) has been fit with a double Gaussian, one of which is very broad and redshifted from the reference frame. The object is a likely Population B quasar. The [OIII] lambda lambda 4959,5007 lines profiles of the source have been formally fit with two Gaussian components, one of which is as broad as similar to 700 km s(-1). This broader component, if physically meaningful, appears to be subject to moderate velocity shock excitation. The forbidden line ratios correspond to a poorly populated area in standard diagnostic diagrams of AGN narrow line regions.
The radio-loud quasar LAMOST J1131+3114 (Ton 580, B2 1128+315), showing asymmetrical profile in Hβ and [O III] lines, has been selected from the LAMOST Pilot Survey for further study. We present an analysis of its emission lines by means of multiple Gaussian fitting, performed on LAMOST, Apache Point Observatory, and archival spectra. The broad line region, with an Hβ line of FWHM ~ 4000 km s-1 has been fit with a double Gaussian, one of which is very broad and redshifted from the reference frame. The object is a likely Population B quasar. The [O III] λλ4959,5007 lines profiles of the source have been formally fit with two Gaussian components, one of which is as broad as ~700 km s-1. This broader component, if physically meaningful, appears to be subject to moderate velocity shock excitation. The forbidden line ratios correspond to a poorly populated area in standard diagnostic diagrams of AGN narrow line regions.
Author Shi, Z. X.
Comte, G.
Luo, A. L.
Zhao, Y. H.
Wu, F. C.
Zhao, J. K.
Oswalt, T. D.
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  organization: Physics and Space Science Department, Florida Institute of Technology, Melbourne FL 32901, USA
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  givenname: F. C.
  surname: Wu
  fullname: Wu, F. C.
  organization: National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, 100190 Beijing, PR China
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Snippet The radio-loud quasar LAMOST J1131+3114 (Ton 580, B2 1128+315), showing asymmetrical profile in Hβ and [O III] lines, has been selected from the LAMOST Pilot...
The radio-loud quasar LAMOST J1131+3114 (Ton 580, B2 1128+315), showing asymmetrical profile in H beta and [OIII] lines, has been selected from the LAMOST...
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SubjectTerms Astronomy
Astrophysics
Asymmetry
Diagnostic systems
galaxies: interactions
galaxies: jets
galaxies: kinematics and dynamics
Gaussian
Pilots
Quasars
quasars: emission lines
quasars: individual: LAMOST J1131+3114
Sciences of the Universe
Spectral emissivity
Title Emission lines properties of the radio-loud quasar LAMOST J1131+3114
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