Steering Committee Meeting, Sept 21-22, 2009, Presentations

Location: NASA Goddard Space Flight Center

 

Steering Executive Committee Meeting (PPT)

  • Agenda: September 21
  • Update from LUNAR-central
  • Overviews of Key Project
  • Lunar Laser Ranging Group
  • Heliophysics Key Project
  • Low Frequency Cosmology & Astrophysics
  • Augustine Report
  • SMD Funding
  • Update from LUNAR-central

DREAM: Dynamic Response of the Environment at the Moon (PPT)

  • To advance lunar research, NASA Planetary Division formed virtual institutes (like NAI) to pursue dedicated theme-based lunar science topics…
  • “Of the Moon, On the Moon, From the Moon”
  • LSI-Central at ARC (also run  the LSI-Forum)
  • Summer 2008 released the NLSI CAN
  • Teams or nodes are sub-elements under LSI central direction

Challenge: Low frequency foreground – hot, confused sky (PPT)

  • HI 21cm signal ~ 10 mK
  • Foreground:  T ~ 100 (v/200 MHz)-2.6 K
  • Highly ‘confused’: 1 source/deg^2 with S140 > 1 Jy
 HI 21cm signal ~ 10 mK
 Foreground:  T ~ 100 (/200 MHz)^-2.6 K
 Highly ‘confused’: 1 source/deg^2 with S140 > 1 Jy

Part 1: Murchison Widefield Array EoR Studies Update (PPT)

  • 32T deployment Antenna characterization
  • EoR COLLABORATION MEMBERSHIP
  • MWA: 32 tiles installed at the Murchison Radio Observatory

Part 2: NRAO-MIT-JPL Collaboration To Develop LRA Antennas (including deployment) (PPT)

  • Murchison Widefield Array Sensitivity (Bowman, Morales & Hewitt 2006)
  • Fiducial Lunar Arrays
  • LARC Concept: Boundaries set by three fiducial arrays
  • Tall Pole:  Antenna Technology/Design
  • Self-Tending Array Node and Communications Element (STANCE)
  • Orbcomm characterization of beams may need differential measurement
  • Deployment

 

LUNAR Grants Program: Progress Report (PPT)

  • Study Grant program: 100k total per year
  • 4 - 5 proposals to be funded
  • Theory, Instrumentation and Concept Studies
  • Ideas uniquely enabled by the lunar surface and/or Constellation architecture

 

Simulations of the Dark Ages: Initial Plans (PPT)

  • Initial Simulation Plans
  • Simulation Setup
  • Source Population Parameter Study

 

Radio Heliophysics Key Project Update, J. Kasper (PPTX)

  • Team
  • Goals
    • A small low frequency array on the near side of the moon to determine where electrons are accelerated in the corona
  • Science Tasks
    • Look for evidence of low-frequency radio transients in existing data
    • Characterize lunar radio frequency interference environment
  • Array Development Tasks
    • Conduct observations with similar array on ground
    • Refine traceability matrix
  • Pathfinder Tasks
    • Identify pathfinder missions
    • Technology development and characterization studies

 

Radio Heliophysics Key Project Update (Part II), R. MacDowall (PPT)

  • Wind Waves RAD2 plan-AGU presentation
  • GSFC PF antenna work planned (fall 2009) 
  • GSFC ULP-ULT plan (FY10) - Returned all FY09 funding to HQ 
  • Chandrayaan-2 deployer/issues

 

Lunar Laser Ranging (LLR) within LUNAR, Tom Murphy et al. (PPT)

  • Fundamental incompatibility of QM and GR - Improve our tests of GR
  • Dark Energy may be misunderstanding of large-scale gravity - Dvali idea replaces with leaky gravity -> lunar precession
  • Inflation may have left residual scalar fields (inflaton) - generic result is violation of EP and changing constants
  • Dark Matter inspires alternative gravity models (MOND) - test of inverse square law could reveal