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INTEGRAL AO-5 Key Programs/Deadline

April 10, 2007

Dear Colleague,

We would like to call to your attention to the upcoming April 20, 2007
deadline for INTEGRAL AO-5 proposals and an important new feature of
this observing cycle.  In addition to the 12.8 Msec of available General
Observer Program time, there are three previously selected observing
programs that constitute the AO-5 Key Programs.  These programs consist
of deep 2 Msec observations of the Galactic Center, the Cygnus region,
and the North Ecliptic Pole.  Details of the Key Programs including the
exposure maps and science objectives of each program can be found at this


Potential US guest investigators are encouraged to maximize the scientific
potential of these previously approved Key Program observations.  Investigations
utilizing the same data but with complementary scientific objectives
may be proposed to ESA in what the ESA AO categorizes as "observations
associated with Key Programs."  Since these observations will be made in
any case, ESA is highly interested in such proposals.  They can focus on
any science goals involving sources contained within the Key Program fields
provided they do not duplicate the objectives of the Key Programs themselves.
This of course does not preclude proposals for observations which are entirely
independent of the Key Program, within the 12.8 Msec General Observer Program
time allotment.

NASA intends to make funding available for a Guest Observer (GO) program to
support the analysis, interpretation, and publication of data obtained by U.S.
scientists with successful AO-5 proposals including those associated with Key
Programs.  More information about NASA’s intention of funding successful US
proposers can be found here:


For additional technical or programmatic information regarding U.S. participation
in the INTEGRAL mission, please contact

Technical Information:
			Dr. Steven Sturner
	  		NASA Goddard Space Flight Center
			Code 661
			Greenbelt, MD  20771
			Tel:  (301) 286-8447
			Fax:  (301) 286-1684

Programmatic Information
			Dr. Neil Gehrels
			US INTEGRAL Project Scientist
	  		NASA Goddard Space Flight Center
			Code 661
			Greenbelt, MD  20771
			Tel:  (301) 286-6546
			Fax:  (301) 286-1684

A service of the
High Energy Astrophysics Science Archive Research Center (HEASARC)

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