Jordan Goodman

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The HAWC Site the Mexican Collaboration

• Alberto Carramiñana
• INAOE, Mexico

2
The HAWC site

• The base of volcán Sierra Negra
• latitude 18º59
• longitude 97º18
• altitude 4100m
• Inside Parque Nacional Pico de Orizaba

Alberto Carramiñana
3
The Large Millimeter Telescope
Sep 2006

• The largest single dish mm telescope - the
  largest science project in Mexico
• INAOE/UMass project
• 50m aperture _at_ 80-350 GHz
• cold and high redshift universe
• in construction since 2000
• 3mm first light in mid 2008

Alberto Carramiñana
4
The Large Millimeter Telescope

• Unique multiwavelength companion
• flux level 3 mJy Hz-1/2 (1?)
• day and night
• 1º/s slewing on both axis
• Complemented with Sierra Negra Consortium
  experiments
• HAWC
• Solar Neutron Telescope (operational)
• 5m radio telescope Solar night
• cosmic ray array Fluorescence
• two (resurrected) HEGRA IACTs (already in Mexico)
• antineutron proposal
• Citlaltepetl muon experiment
• geophysical and atmospheric monitors

Taurus GMC CO(1?0) SEQUIOA _at_ FCRAO 14m 96
sq.deg with 70 m/s resolution www.astro.umass.edu/
heyer/taurus.html
Common EG/WMAP
Alberto Carramiñana
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The HAWC site easy access
Mexico DF 120 km
Veracruz 160 km
100 km
Alberto Carramiñana
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The HAWC site excellent geographical location

• Close to the equator ?sur 4? cos(lat) sin(?) ?
  4?(2/3)
• - 10 more sky access than at 30º
• - 40 overlap with HESS GP survey
• - 90 overlap with IceCube
• - 100 with Whipple Strip Survey and VERITAS
  Cygnus Survey
• Crab _at_ 3º from zenith
• Galactic center is at 48o
• Synchronous with Pan-American observatories

Alberto Carramiñana
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The HAWC site excellent geographical location
Alberto Carramiñana
8
The HAWC site location and topography
5610m
4582m
Alberto Carramiñana
9
HAWC in Parque Nacional Pico de Orizaba

• Site permit granted by SEMARNAT
• June 2007 INAOE submitted to SEMARNAT an
  Environmental Impact Declaration (EID) for HAWC
  at Sierra Negra
• Sept 2007 permit granted for constructing pond
  and facilities (30,000 m2), water extraction
  system / with conditions and without permit for
  road and power line
• Nov 2007 detailed road design basic
  underground power line design and cost estimate -
  will submit EID in Dec 2007/Jan 2008
• Jan/Feb 2008 will submit modification of site
  permit for tanks and revised site layout
  including two IACTs
• March 2008 initiate road construction (? May
  2008)

Road cost contract 280k pesos (26k USD) Power
line estimate 800k pesos (73k USD)
Alberto Carramiñana
10
The HAWC site weather

• Six years of weather data at top of SN available
• HAWC is mostly weather proof, but look for
  freezing conditions and severe weather
• freezing lt 10 of the time

Alberto Carramiñana
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The HAWC site Moderate Weather

• Fast wind (gt25 mph) less than 5 of time
• Occasional influence of hurricanes
• Dean! max wind speed 90 MPH

Alberto Carramiñana
12
Water for HAWC

• Water demands
• HAWC tanks/3 years 0.8 l/s
• 2M gallons/ 100 tanks
• Water acquisition systems (by preference)
• well _at_ 1-2 km from site
• water trap _at_ 7 km from site
• transport from lower wells with trucks (15km)

Alberto Carramiñana
13
Water for HAWC the well

• Location of potential wells through topographic
  and geoelectric studies
• advised by collaborators from Geociencias UNAM
  and UAM
• permit granted by SEMARNAT

Alberto Carramiñana
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Water for HAWC more options

• Water trap
• pump gravity
• 7 km pipes
• permit granted by SEMARNAT

Alberto Carramiñana
15
Site operations

• Consorcio Sierra Negra provider of common
  services (to be adapted from La Palma)
• electrical power supply
• access road and maintenance
• water and sewage
• waste collection
• security, first aid, fire protection
• communications internet telephone
• base camp
• common visitor set up
• Cost shared by all CSN partners according to
  experiment cost, locations, consumptions, etc...

Alberto Carramiñana
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The Mexican collaboration
Alberto Carramiñana
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The Mexican collaboration
Alberto Carramiñana
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The Mexican Funding

• CONACyT 2006 call for Ideas de Megaproyectos
• proposals for up to 1000 Mpesos/5 years
• 200 submitted ? 80 to phase 2
• phase 2 no review(!?) ? research networks
• HAWC in High Energy Physics network

Alberto Carramiñana
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The Mexican Funding the HEP network
Alberto Carramiñana
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The Mexican Funding beyond CONACyT networks

• Institutional funds (to comply with minimal
  support)
• require 367k pesos/inst/yr to reach 1.5 MUSD/5yrs
• INAOE committed 500k/pesos per year
  (2007 100 kpesos MEGA 280 kpesos road 100
  kpesos site studies travel ...)
• CONACyT basic science projects (Auger-like)
• call issue on 1/12/7 (deadline 31/1/8)
• individuals up to 1.8 Mpesos /3 years
• groups up to 5 Mpesos /3 years
• What about NSF - CONACyT common support?

Alberto Carramiñana