A new sample of X|ray selected narrow emission|line galaxies. II ...

Mid-IR Properties of an Unbiased AGN Sample of the Local ...

Type II objects possess permitted and forbidden optical emission lines of similar narrow widths and their optical continua are dominated by the host galaxy. The ...

PoS(NLS1)056 - Proceeding of science

... emission line profiles; in §3 we describe the. 2. Page 4. PoS(NLS1)056. Emission line and X-ray properties of Broad and Narrow Line Seyfert 1 galaxies. G. La ...

New Methods and Techniques, IAU Colloquium 159 - aspbooks.org

Ferruit, P.; Pecontal, E.; Adam, G.; Bacon, R. Narrow Lines and Continuum Emission in Seyfert 2 Galaxies ... New X-ray-Selected BL Lacertae Objects and Three New ...

A New Sample of “Normal” X-ray Emitting Galaxies - ESA Cosmos

• LLAGN in sample have. – narrow emission lines. – typically hard X-ray spectra (exceptions at lower luminosity?) • Nature. – Seyfert 2? • expect significant X ...

Type 2 QSOs

Type 2 QSOs. There have been several claims about the discovery of X-ray selected ``narrow line'' QSOs which have been called type 2 QSOs. All of them turned ...

a large, uniform sample of x-ray-emitting active galactic nuclei from ...

broad emission lines; (2) AGNs with narrower line components; and (3) BL ... We also select among the narrow-line group AGNs whose. SDSS optical spectra ...

The evolution of X-ray-selected narrow-emission-line galaxies

(1996) using a sample of NELGs drawn exclusively from two ROSAT surveys, namely the ROSAT International X- ray Optical Survey (RIXOS) and the UK ...

Spectroscopy of narrow emission line X-ray galaxies - CiteSeerX

all five narrow-line objects, the Fe II line complexes can be de- tected. The X-ray spectral properties of the sample, however, are consistent with a random ...

Narrow-line Seyfert 1 galaxies in Sloan Digital Sky Survey - OSTI.GOV

... x. journal, August 2004. M BH - Relation for a Complete Sample of Soft X-Ray-selected Active Galactic Nuclei. Grupe, Dirk; Mathur, Smita; The ...

Optical Emission Lines and the X-Ray Properties of Type 1 Seyfert ...

In this contribution we report on the study of the optical emission lines and X-ray spectra of a sample of Type 1 AGNs, collected from the SDSS database and ...

The Relationship of hard x-ray and optical line emission in low ...

First, we study the emission-line properties of a new hard X-ray selected sample of 47 local AGN (classified optically as both Type 1 and Type 2 AGN). We find ...

A Deep ROSAT Survey - X. X-ray-luminous narrow-emission-line ...

PDF | X-ray luminous narrow emision-line galaxies (NELG) have been previously identified and proposed as an important class of extragalactic X-ray.

X-ray properties of HeII λ1640 emitting galaxies in VANDELS

We explore X-ray emission from a sample of 18 He II λ1640 emitting star-forming galaxies at z ∼ 2.3–3.6 from the VANDELS survey in the ...

Modeling the Infrared Continuum Emission of a Sample of Hard X ...

We model Spitzer Infrared Spectrograph (IRS) data spanning 5-40μm of 66 hard X-ray selected active galactic nuclei (AGN) in an attempt to isolate and define ...

Statistical properties of narrow-line Seyfert 1 galaxies - ScienceDirect

X-ray selected AGN samples. The first sample that showed that NLS1 appear enhanced in X-ray selected samples was the EINSTEIN AGN sample of Stephens (1989).

A comparative study of the physical properties for a representative ...

... sample of narrow-line Seyfert 1 galaxies selected from the Sloan ... Lines in X-Ray Luminous Narrow- and Broad-Line Seyfert 1 Galaxies.

X-ray Luminous Narrow Emission Line Galaxies - CiteSeerX

of BLAGN at fx ~ 10−15 ergs cm−2 sec−1; c) we find that these objects are described by a cosmological evolution rate similar to that of soft X-ray selected ...

Narrow-Line Seyfert 1 Galaxies and their place in the Universe

X-ray properties of a sample of NLS1 selected from the SDSS PoS(NLS1) ... X-ray study of narrow line Seyfert 1 galaxies with strong Fe II emission

X-ray Emission from Clusters of Galaxies Craig L. Sarazin ...

.2 Correlations bet w een X-ray and radio emission. Based on the small sample of X-ray clusters known at that time, Owen (1974) argued that there was a.

A Study of X-ray Narrow Emission Lines from Ionised Gas in Active ...

more certain measurements reduces the probability that the two samples were ... X-Ray-Selected Active Galactic Nuclei Sources, The Astrophysical Journal.