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[PDF] Top 20 The Obscured Fraction of Active Galactic Nuclei in the XMM COSMOS Survey: A Spectral Energy Distribution Perspective

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The Obscured Fraction of Active Galactic Nuclei in the XMM COSMOS Survey: A Spectral Energy Distribution Perspective

The Obscured Fraction of Active Galactic Nuclei in the XMM COSMOS Survey: A Spectral Energy Distribution Perspective

... a fraction of outliers of 6% for the entire Chandra- COSMOS ...Moreover, the classification done via SED fitting with the one obtained via hardness ratio was ... See full document

29

The NuSTAR Extragalactic Surveys: The Number Counts of Active Galactic Nuclei and the Resolved Fraction of the Cosmic X Ray Background

The NuSTAR Extragalactic Surveys: The Number Counts of Active Galactic Nuclei and the Resolved Fraction of the Cosmic X Ray Background

... high energy. Simple extrapolations of AGN populations detected by Chandra and XMM-Newton to higher energies based on average spectral properties fail to reproduce the shape and ... See full document

8

A statistical relation between the X ray spectral index and Eddington ratio of active galactic nuclei in deep surveys

A statistical relation between the X ray spectral index and Eddington ratio of active galactic nuclei in deep surveys

... well the properties of the accretion flow on to a supermas- sive black hole may be coupled to those of the overlying hot ...measure the characteristic spectral index, , ... See full document

12

Lifting the Veil on Obscured Accretion : Active Galactic Nuclei Number Counts and Survey Strategies for Imaging Hard X Ray Missions

Lifting the Veil on Obscured Accretion : Active Galactic Nuclei Number Counts and Survey Strategies for Imaging Hard X Ray Missions

... discrimination of the models will result from objects at z < 1. In particular, the model of Draper & Ballantyne (2010), where Compton thick objects are comprised of a ... See full document

15

The incidence of obscuration in active galactic nuclei

The incidence of obscuration in active galactic nuclei

... study the incidence of nuclear obscuration on a complete sample of 1310 active galactic nuclei (AGN) selected on the basis of their rest-frame 2–10 keV X-ray flux ... See full document

18

Obscured GOODS Active Galactic Nuclei and Their Host Galaxies at z &lt; 1 25 : The Slow Black Hole Growth Phase

Obscured GOODS Active Galactic Nuclei and Their Host Galaxies at z < 1 25 : The Slow Black Hole Growth Phase

... detections in only two ...from the host galaxy SED are frequent enough in our sample that attempting to determine the reddening value from the combined AGN+host SED would be ... See full document

16

Optical Spectroscopy of X Ray Sources in the Extended Chandra Deep Field South

Optical Spectroscopy of X Ray Sources in the Extended Chandra Deep Field South

... dependence of the fraction of obscured AGNs on redshift is more ...increase in the fraction of obscured AGNs at higher redshifts, other results ... See full document

15

VVV Survey Microlensing Events in the Galactic Center Region

VVV Survey Microlensing Events in the Galactic Center Region

... that the microlensing optical depth keeps rising all the way to the Galactic center, but further observations are necessary to con fi rm this, and a microlensing search in this region ... See full document

8

Major Galaxy Mergers Only Trigger the Most Luminous Active Galactic Nuclei

Major Galaxy Mergers Only Trigger the Most Luminous Active Galactic Nuclei

... determine the physical mechanism(s) that provoked the AGN activity identified in these ...evidence of external interactions (e.g., galaxy mergers) and those in which no signs of ... See full document

5

The Chandra COSMOS Legacy Survey: Source X Ray Spectral Properties

The Chandra COSMOS Legacy Survey: Source X Ray Spectral Properties

... only the z value, with no information on the spectral type, and a lack of SED template best- fi tting ...between the spectral and the SED template best- fi tting classi fi ... See full document

20

X ray spectral constraints for z approximate to 2 massive galaxies: the identification of reflection dominated active galactic nuclei

X ray spectral constraints for z approximate to 2 massive galaxies: the identification of reflection dominated active galactic nuclei

... 2009). In §3.1 we used a variety of analyses (strong reflected-dominated spec- trum, identification of Fe K, small X-ray–8 µm luminosity ratios) to infer that ≈ 10–50% of the X-ray ... See full document

16

The host galaxies and environment of Chandra selected active galactic nuclei in the deep ACS GTO cluster fields

The host galaxies and environment of Chandra selected active galactic nuclei in the deep ACS GTO cluster fields

... images of optical counterparts to the Chandra-selected X-ray sources found in the fields of the five clusters RX J01521357, RX J0849+4452, RDCS J0910+5422, MS 10540321, and RDCS ... See full document

39

The Cosmic History of Black Hole Growth from Deep Multiwavelength Surveys

The Cosmic History of Black Hole Growth from Deep Multiwavelength Surveys

... to the AGN unification paradigm [28, 29], a large fraction of these sources, ∼ 75% locally, are heavily ob- scured by optically and geometrically thick axisymmetric material, which explains many ... See full document

22

Structure of the obscured galactic disk with pulsating variables

Structure of the obscured galactic disk with pulsating variables

... to the various methods devel- oped for the characterization of the light curves of variable ...stars. In particular, the time-series observations of LSST (LSST ... See full document

180

Dust corrected Colors Reveal Bimodality in the Host galaxy Colors of Active Galactic Nuclei at z ~ 1

Dust corrected Colors Reveal Bimodality in the Host galaxy Colors of Active Galactic Nuclei at z ~ 1

... from the MUSYC medium-band survey in the Extended Chandra Deep Field-South (ECDF-S), we fit synthetic stellar population models to compare active galactic nucleus (AGN) host ... See full document

5

Measuring the Fraction of Obscured Quasars by the Infrared Luminosity of Unobscured Quasars

Measuring the Fraction of Obscured Quasars by the Infrared Luminosity of Unobscured Quasars

... estimate the bolometric luminosities, we combined the photometric information from GALEX NUV (1750 Y 2800 8 ) to z band (1 ...m). In the optical range, where there are only very small gaps ... See full document

9

The XMM SERVS survey: new XMM Newton point source catalogue for the XMM LSS field

The XMM SERVS survey: new XMM Newton point source catalogue for the XMM LSS field

... communities of Japan and Taiwan, and Princeton University. The HSC instrumentation and software were developed by the National Astronomical Observatory of Japan (NAOJ), the Kavli ... See full document

32

Weighhing the black holes in z 2 submillimeter emitting galaxies hosting active galactic nuclei

Weighhing the black holes in z 2 submillimeter emitting galaxies hosting active galactic nuclei

... to the submm-detected quasars identified by Page et ...stage in the evolution of SMGs ...from the black hole have started to remove gas and dust from the nucleus and the ... See full document

14

On R W1 as A Diagnostic to Discover Obscured Active Galactic Nuclei in Wide area X Ray Surveys

On R W1 as A Diagnostic to Discover Obscured Active Galactic Nuclei in Wide area X Ray Surveys

... complementing the AGN census revealed from optical and infrared ...both the unobscured and obscured AGN populations ( though the most heavily obscured, ...missed in X-ray surveys ... See full document

16

Li rich red giant branch stars in the Galactic bulge

Li rich red giant branch stars in the Galactic bulge

... population, the expected ΔV HB bump is 0.5 mag (Zoccali et al. 1999). Since the observed red clump is at V ∼ ...16.8, the RGB bump should then be at V ∼ ...that the RGB bump occurs at brighter ... See full document

7

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