The agn population and its contribution to the x ray and ir backgrounds
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The AGN Population and Its Contribution to the X-ray and IR Backgrounds. Ezequiel Treister Advisors: Meg Urry (Yale) Jos é Maza (U. de Chile). Outline. Introduction - Active Galactic Nuclei - Cosmic X-ray Background - The IR Background

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The agn population and its contribution to the x ray and ir backgrounds

The AGN Population and Its Contribution to the X-ray and IR Backgrounds

Ezequiel Treister

Advisors: Meg Urry (Yale)

José Maza (U. de Chile)


Outline
Outline Backgrounds

  • Introduction

    - Active Galactic Nuclei

    - Cosmic X-ray Background

    - The IR Background

  • The Thesis

    - Goals

    - Data

  • Schedule



Agn zoology
AGN Zoology Backgrounds


Agn unified model
AGN Unified Model Backgrounds

Urry & Padovani 1995


Unified model
Unified Model Backgrounds

Type 1 AGNs: - Broad Emission Lines

- Blue optical continuum

- Radio Loud if viewing angle is small

Type 2 AGNs: - Obscuration in the optical/UV and soft X-rays

- Narrow Emission Lines

- Radio Quiet

- Obscured by the Equatorial Dust Torus

Fundamental Parameters: - Black Hole Mass (host galaxy mass)

- Mass Accretion Rate (AGN Luminosity)

- Black Hole Spin (Merger history?)


Type 1 agn sed
Type 1 AGN SED Backgrounds

X-rays

mm

far-IR

near-IR

Optical-UV

Manners, 2002


Type 2 agn sed
Type 2 AGN SED Backgrounds

X-rays

Radio

far-IR

optical-UV

Norman et al, 2002


X ray background
X-ray Background Backgrounds


Agn sed in x rays
AGN SED in X-rays Backgrounds

Type 1 AGN

Mainieri et al, 2002


Absorption in x rays
Absorption in X-rays Backgrounds

Manners, 2002


Type 2 agn x ray spectrum
Type 2 AGN X-ray Spectrum Backgrounds

NH=3x1023 cm-2

Mainieri et al, 2002


Xrb models
XRB Models Backgrounds

Gilli et al, 2001


Xrb redshift distribution
XRB Redshift Distribution Backgrounds

Hasinger, 2002


Cosmic ir background
Cosmic IR Background Backgrounds

Near IR (1.5-3.5 microns)

Far IR (50-250 microns)


Cirb spectrum
CIRB Spectrum Backgrounds

Franceschini et al, 2001


Type 2 agn sed1
Type 2 AGN SED Backgrounds

Norman et al, 2002


Agn contribution
AGN Contribution Backgrounds

Fadda et al, 2002


The thesis
The Thesis Backgrounds

GOALS

  • Understand how AGN primary radiation in the UV and X-ray

  • wavelength range and re-radiation (in the far IR) combine to

  • produce the observed “backgrounds” or integrated light, that

  • have defied explanation for more than 30 years.

  • Improve Luminosity Functions, Redshift distributions and

  • evolution of Type 2 AGN, increasing the number of sources at

  • high redshift (z~2), population often missed by large area/shallow

  • surveys.


Thesis data
Thesis Data Backgrounds

  • Chile-Yale Wide-Deep Survey:

    - 1 square degree in 4 30’x30’ fields

    evenly distributed in RA.

    - leveraging existing data.

    - 2 equatorial fields for northern hemisphere access.

  • Great Observatories Origin Deep Survey (GOODS):

    - 0.1 square degrees in 2 10’x16’ fields.

    - Fields are HDF-N and CDF-S.

    - SIRTF Legacy Program (PI: Dickinson).

    - HST Treasury Program (PI: Giavalisco).


Chile yale wide deep survey
Chile-Yale Wide-Deep Survey Backgrounds

  • Ground Based Optical Coverage: CTIO 4m MOSAIC, ESO WFI.

  • Ground Based Near-IR imaging: CTIO 4m ISPI.

  • X-ray Data: XMM, Chandra.

  • Infrared Data: SIRTF IRAC+MIPS.

  • Follow-up Spectroscopy: VLT: VIMOS, FORS2 Magellan: IMACS

FIELDS


Expected data
Expected Data Backgrounds

Optical

Near-IR


Existing data
Existing Data Backgrounds


Goods optical data
GOODS Optical Data Backgrounds


Goods data summary
GOODS Data Summary Backgrounds

Dickinson et al 2002


Number counts

GOODS Backgrounds

Chile-Yale

Number Counts




Data analysis
Data Analysis Backgrounds

GOODS:

- Candidate selection + slit design for spectroscopy runs (VIMOS).

- Spectroscopic data reduction.

Chile-Yale Wide-Deep Survey:

- Optical Data Acquisition.

- Optical Data Reduction.

- Candidate selection + slit design for spectroscopy runs.

- Spectroscopic data reduction.

Data Modeling

  • Synthetic model to produce observed integral backgrounds, XRB and

  • CIRB.


Schedule
Schedule Backgrounds


Summary
Summary Backgrounds

My Thesis will:

  • Enlarge the sample of obscured AGN at high redshift.

  • Provide better constrains on the contribution of obscured AGN to the X-ray and Infrared Backgrounds.

  • Generate Luminosity Functions up to z~2 for Type II AGN.

  • Tell us more about the physics of AGN and the unified model by combining observations with model.


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