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<HSTProposal
   Phase1ID="593"
   Phase2ID="11238"
   Phase="Phase I"
   AptVersion="Version 16.0.2 ">
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   <!--This file is automatically generated and should not be edited by hand. Editing this file directly is at your own risk.-->
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   <ToolData>
      
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         Key="SubmissionData">
         
         <SubmissionData
            AptVersion="Version 16.0.2 "
            SubmissionCounter="1"
            SubmissionSuccessCounter="0"
            HasErrors="false"
            Cycle="16"
            IncludeSysInfo="true"
            NotificationAddress="jake@physics.byu.edu"
            AssignedID="593">
            
            <SystemInformation
               os.arch="i386"
               os.name="Linux"
               os.version="2.6.17-10-generic"
               java.version="1.5.0_08"
               linux.distribution="not available"
               linux.version="not available" />
            
            <SubmissionComments />
            
            <SubmissionLog>  Assigned ID: 593
----- Attempting Submission 1 (Fri Jan 26 23:58:43 GMT 2007) -----
</SubmissionLog>
            
            <DiagnosticJustification />
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      </ToolDataItem>
   </ToolData>
   
   <ProposalInformation
      Category="AR"
      PureParallelProposal="false"
      Cycle="16"
      STScIEditNumber="0">
      
      <Title>Searching For Unresolved Binary Brown Dwarfs Using Point Spread Functions</Title>
      
      <Abstract>There currently are objects of L and T spectral type with errors in their classification of +/- 1 to 2.  Metallicity and gravitational differences have accounted for some of these discrepancies, and recent studies have shown unresolved binary brown dwarfs may offer some explanation as well.  However limitations in technology and resources make it difficult to clearly resolve an object that may be binary in nature.  It has been shown that using model point-spread functions for single and binary sources have been able to identify statistically strong binary candidates from images that are apparently unresolved.   The HST archive contains numerous observations of brown dwarfs from NICMOS that have never been rigorously analyzed for binary properties.   Results from for this archive proposal will help determine if there really is an increase in binary brown dwarfs in the L/T transition and identify potential candidates for future observations to determine orbital information.</Abstract>
      
      <PrincipalInvestigator
         Honorific="Mr."
         FirstName="Jacob"
         MiddleInitial="J."
         LastName="Albretsen"
         ESAMember="false"
         AddressVerifiedCycle="16">
         
         <Address
            Institution="Brigham Young University"
            NewInstitution="true"
            />
      </PrincipalInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Denise"
         MiddleInitial="C."
         LastName="Stephens"
         ESAMember="false"
         UniqueID="5805"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="16">
         
         <Address
            Institution="Brigham Young University"
            NewInstitution="true"
            />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Keith"
         MiddleInitial="S."
         LastName="Noll"
         ESAMember="false"
         UniqueID="2895"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="16">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <Questions>
         
         <Phase2Questions>
            
            <ObservingDescription />
            
            <RealtimeJustification />
            
            <CalibrationJustification />
            
            <AdditionalComments />
         </Phase2Questions>
      </Questions>
      
      <Orbits
         ThisCycle2GyroPrimary="1"
         ThisCycle2GyroParallel="0"
         NextCycle2GyroPrimary="0"
         NextCycle2GyroParallel="0"
         AfterNext2GyroPrimary="0"
         AfterNext2GyroParallel="0" />
      
      <Phase1ProposalInformation
         TotalTargets="1"
         Attachment="/home/jake/apt/cycle_16/phase16-AR.pdf">
         
         <ScientificCategory>COOL STARS</ScientificCategory>
         
         <ScientificKeyword1
            Keyword="VERY LOW MASS STARS AND BROWN DWARFS" />
         
         <ScientificKeyword2
            Keyword="SURVEY" />
         
         <ScientificKeyword3
            Keyword="DETACHED BINARIES" />
         
         <ProprietaryPeriod>12</ProprietaryPeriod>
         
         <Budget>26000.00</Budget>
         
         <CalibProp>false</CalibProp>
         
         <SpitzerHours>0.0</SpitzerHours>
         
         <Treasury>false</Treasury>
         
         <Legacy>false</Legacy>
         
         <Theory>false</Theory>
         
         <LargeProgram>false</LargeProgram>
         
         <Spitzer>false</Spitzer>
         
         <Survey>false</Survey>
      </Phase1ProposalInformation>
      
      <Phase2ProposalInformation
         PCFlag="false">
         
         <Availability>SUPPORTED</Availability>
      </Phase2ProposalInformation>
   </ProposalInformation>
   
   <Targets />
   
   <Observations />
   
   <Datasets>
      
      <Dataset
         Instrument="NICMOS"
         Number="1"
         NumberOfDatasets="240"
         RetrievalMethod="FTP"
         RetrievalPlan="All (240) datasets in one week" />
   </Datasets>
   
   <Patterns />
   
   <Visits />
</HSTProposal>


