The narrow line region
Dusty Structure Around Type-I Active Galactic Nuclei: Clumpy Torus Narrow-Line Region and Near-Nucleus Hot Dust
... ABSTRACT We fitted Spitzer/IRS ∼ 2–35 μm spectra of 26 luminous quasi-stellar objects in an attempt to define the main emission components. Our model has three major components: a clumpy torus, dusty ...
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Type 2 Active Galactic Nuclei With Double-Peaked O III Lines. II. Single AGNs With Complex Narrow-Line Region Kinematics Are More Common Than Binary AGNs
... integrated spectroscopy. However, our current sample of kpc- scale binary AGNs is still small, and a larger statistical sample of binary AGNs is needed to confirm these trends. In these binary systems, the smaller ...
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[O III] line properties in two samples of radio-emitting narrow-line Seyfert 1 galaxies
... the narrow-line region (NLR) in active galactic nuclei ...in narrow-line Seyfert 1 galaxies (NLS1s) these lines often show few peculiar features, such as blue wings, often interpreted ...
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An XMM-Newton observation of the extreme narrow-line Seyfert 1 galaxy, Mrk359
... the narrow-line region (NLR) and the broad-line region (BLR) are unusually narrow in Mrk ...a narrow-line Seyfert 1 galaxy (NLS1), the first such object ...
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Parent population of flat-spectrum radio-loud narrow-line Seyfert 1 galaxies
... ossia narrow- line Seyfert 1 radio brillanti a spettro ripido (S-NLS1), narrow-line Seyfert 1 radio quiete (RQNLS1), radio-galassie ospitate in una galassia a disco (disk RG) e oggetti ...
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Line Shifts, Broad-Line Region Inflow, And The Feeding Of Active Galactic Nuclei
... blueshifted line profiles and also explains the dependence of blueshifting on ...emission line is used to estimate masses of high-redshift AGNs, we suggest an extension of our model to the ...
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The relativistic jet of the γ-ray emitting narrow-line Seyfert 1 galaxy PKS J1222+0413.
... the narrow-line region likely makes a negligible contribution to the Balmer line fluxes, the FWHM of the broad H β and H α lines may be estimated directly from the observed line ...
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Properties of the Narrow Line Seyfert 1 Galaxies Revisited
... unusually narrow Balmer lines is still not well ...Broad Line Region (BLR) is likely more “flat” than a spherical/isotropic structure [5] [6], which would shed light on the issue of “unusually ...
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Spectral properties of x-ray selected narrow emission line galaxies
... e region of sky and went a step further: assum ing th a t all th e absorption was due to th e n e u tra l hydrogen in th e line of sight and using stan d ard photoelectric absorption cross-sections, he ...
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A panchromatic view of relativistic jets in narrow-line Seyfert 1 galaxies
... This may be an indication of a small viewing angle with respect to the jet axis, and therefore a high beaming factor for the γ-ray emission, similarly to blazars. In the same way, the average photon index Γ γ ranges ...
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Asymmetric emission of the [OIII]λ5007 profile in narrow-line Seyfert 1 galaxies
... 2001; Grupe & Leighly 2002; Marziani et al. 2003b; Aoki et al. 2005). Recently, Zakamska et al. (2016) detected quasars at z∼2.5 with blueshifts of ∼ −1500 km s −1 . Considering high ionization emission lines such as [Fe ...
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Four Years of Fermi LAT Observations of Narrow-Line Seyfert 1 Galaxies
... The LAT data reported in this paper were collected from 2008 August 4 (MJD 54682) to 2012 August 4 (MJD 56143). During this time the LAT instru- ment operated almost entirely in survey mode. The analysis was performed ...
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Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions
... 2 The γ-ray view of NLSy1 Five radio-loud NLSy1 galaxies have been detected at high significance by Fermi-LAT so far: 1H 0323+342, SBS 0846+513, PMN J0948+0022, PKS 1502+036, and PKS 2004−447 [20, 44], with a redshift ...
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The awakening of the γ-ray narrow-line Seyfert 1 galaxy PKS 1502+036
... The OVRO 15 GHz light curve reached the highest flux density observed from this source on 2016 January 12, indicating a delay of about three weeks between the γ-ray and 15 GHz emission peaks. This suggests that the γ-ray ...
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Soft X-ray spectral variations of the narrow line Seyfert l galaxy Markarian 766
... chosen at random from all the original pairs with corresponding positive or negative time lag and the DCF constructed with the same number of pairs as the real DCF; this was repeated 1000 times, and the solid line ...
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WISE colours and star formation in the host galaxies of radio-loud narrow-line Seyfert 1
... the region below the PL line. For the sources just below this line, the contribution from the host galaxy in these WISE bands is not enough to distinguish the type of the host ...
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A long XMM-Newton observation of an extreme narrow-line Seyfert 1 : PG 1244+026.
... extraction region to be a circular region of radius 45 arcsec for each EPIC ...background region was chosen to be a circle of radius 15 arcsec as far as possible from the source while remaining on ...
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Gamma-Ray-emitting Narrow-line Seyfert 1 Galaxies in the Sloan Digital Sky Survey
... a region mainly populated by FSRQs. Using the H β emission line parameters, we find that on average γ-NLSy1 have smaller black hole masses than FSRQs at similar ...
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The Influence of Additive Free Process on the Microstructure of Very Narrow Cu Wires in the Lower Region of a Trench
... In these EBSD maps, individual grains are colored according to their crystallographic orientation relative to the ND; the color code triangle is shown in the bottom right corner. In all cases, the grains typically span ...
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On the Extent of the Existence of Broad Line Region in Seyfert Galaxies
... narrow emission lines and Seyfert 2 galaxies (S2s) showing only narrow emission lines [8, 9]. The detection of broad emission lines in the spectropolarimetric observations of few Seyfert 2 galaxies laid the ...
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