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Special Call for Archival Research with the Chandra Deepest Fields:
Accepted Proposals


PI NameTitle
Len CowieDeep Submillimeter, Near Infrared and Optical Observations of the Chandra Deep Fields
Harry FergusonThe Deepest Chandra Fields in the Infrared: Making the Connection Between Normal Galaxies and AGN
Paul NandraThe X-ray Emission of High Redshift Galaxies

PI: Len Cowie
Proposal Title: Deep Submillimeter, Near Infrared and Optical Observations of the Chandra Deep Fields

Abstract:
	 
  The 1Ms Chandra fields will provide a map of the accretion history of
  the Universe by resolving more than 97% of the hard X-ray background into 
  discrete sources. We propose to obtain the optical, near-infrared, and
  submillimeter imaging data necessary to,
        (i)make optical identifications of the sources to the deepest limits 
	possible,
	(ii)make near-infrared identifications of the optically faint
	sources, 
	(iii) determine the average submillimeter properties of the
	X-ray population 
	and hence the fraction of the submillimeter extragalactic light which 
	arises in AGN activity versus star formation, 
	(iv)determine the fraction of various optically selected galaxies by 
	type and luminosity which are X-ray detectable and hence the duty 
	cycle of activity, and 
	(v)estimate the AGN bolometric luminosities. 

================================================================================

PI: Harry Ferguson
Proposal Title: The Deepest Chandra Fields in the Infrared: Making the Connection Between Normal Galaxies and AGN

Abstract:

  We propose to use deep optical and near-infrared data on the HDF-N 
  and CDF-S to:
        (a) push constraints on the redshift distribution and spectral-energy 
	distributions of the x-ray sources to the deepest possible levels, 
	(b) carry out a near-infrared search for optically
	unidentified x-ray sources, 
	(c) test and constrain self-consistent models for the
	evolution from merger to starburst to AGN to bulge. 
  The work we propose to carry out will be an essential part of 
  characterizing the overall source population in these deepest
  images, and will lay the groundwork for further studies of stellar
  populations and dust-reprocessed radiation with SIRTF. 

================================================================================

PI: Paul Nandra
Proposal Title: The X-ray Emission of High Redshift Galaxies                                   
Abstract
	 
  Deep optical surveys have revealed a population of star forming galaxies 
  at high redshift. We propose to determine the X-ray properties of these 
  galaxies out to z=3 in the Chandra deepest fields, by stacking of the known 
  optical sources in redshift bins. This will give a measure of the star 
  formation history of the universe relatively independent of
  extinction. We will also perform a census of AGN activity in these
  galaxies, allowing a direct comparison of stellar versus accretion
  power over the history of the X-ray universe. The data can be used
  to determine the importance of supernova heating and feedback in the
  formation of the first cosmic structures, and measure the X-ray
  fluence in the early universe, with implications both for structure
  formation and the epoch of reionization. 


Last modified: 12/02/10



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