The North America ALMA Science Center (NAASC) John Hibbard NA ARC Manager (NRAO/NAASC) National Research Council Canada ESO ALMA Community Meeting, Garching,

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Presentation transcript:

The North America ALMA Science Center (NAASC) John Hibbard NA ARC Manager (NRAO/NAASC) National Research Council Canada ESO ALMA Community Meeting, Garching, Sept

ALMA: A Facility for All Astronomers The key premise of ALMA is that the best science will emerge from competitive use by the widest possible user community  ALMA should not be restricted to experts in mm/submm astronomy or even radio astronomy This goal requires comprehensive user support including:  Test, improve, distribute, and support use of user software  Help users push the envelope of ALMA capabilities  Contribute to (and learn from) Chilean ALMA operations  Foster development of new capabilities To achieve this goal we have created the North American ALMA Science Center (NAASC)

ALMA Operations: Three ALMA Regional Centers - ARCs Joint ALMA Observatory (Chile) NA ARC (NRAO+ NRC) EU ARC (ESO) EA ARC (NAOJ + ASIAA) ARCs provide basic user interface, as well as basic archive, software, and hardware maintenance and development “Satellite” EU ARClets NAASC Full Science Support Services Full Science Support is needed to provide advanced user support, algorithm development, student programs, EPO, grants

The Tri-Partner ALMA Project – Service community through ALMA Regional Centers (ARC) NAASC: North America ALMA Science Center, Charlottesville, VA One-stop shopping for NA astronomers Proposals Observing scripts Data archive and reduction The North American ARC is a partnership between the US and Canada (7.25%) The NAASC is a combination of the NA ARC and US funded Full Science Support

The North American ARC Core Support ALMA Offsite Technical and Software Support Full Science Support The NAASC Has Three Major Components: C. Brogan TBA +2 positions advertised

Chilean Offsite Technical Support: Hardware Maintenance & Repair NAASC Technical Division  Maintain and repair hardware developed by NA during construction  NA Hardware deliverables: Band 3, Band 6, Back End assembly, LO, IF & DTS system, correlator, antenna power supply  M&R contracts based on three-year rolling plan managed by JAO Head of Technical Services

Chilean Offsite Technical Support: Software Maintenance & Repair NAASC S/W & Computing Division  Maintain and repair software developed by NA during construction  NA Software deliverables: Scheduling, real-time system, pipeline, correlator, offline  M&R contracts based on three-year rolling plan managed by JAO Head of Technical Services

ARC “Core” Functions Core User Support  Proposal support  Observational planning  JAO Observing support  Data-delivery & Archive support  Post-processing support

ARC Core support  Proposal and Scheduling Functions:  Review and evaluate the Observing Tool  Issue call for proposals and assist proposers  Support JAO with international PRC  Provide assistance to users in generating observe files  Verify and correct schedule blocks  Provide user-friendly documentation  User Science Support:  Participate in Commissioning and Science Verification  Review and evaluate the pipeline and off-line data reduction software, cookbooks, and web pages  OSF staffing: “Astronomer-on-Duty” Quality assurance and user feedback to OSF  Post-observation user support via helpdesk  Archive support:  Operate NA ALMA Archive (>100 Tbytes per year)  Distribute full uv data sets to user  Operate regional pipeline  Provide interface to the VO

Is This Enough? ALMA will provide calibrated data and images for basic observing modes  This service will not be available until the start of full operations in late 2012 Only basic post-processing user support in the form of an electronic helpdesk is provided for in the ALMA Operations Plan  The needs of the most technically and scientifically challenging observing programs will not be met by the pipeline processing  ALMA will appeal to a much broader range of astronomers than traditional radio observatories, these investigators will require additional help

NAASC Full Science Support “Beyond the ARC”  Face-to-face user support  Postdoc and student programs  Science workshops & summer schools  Support for special projects  EPO

Full Science Support F-2-F expert assistance with observation preparation and post-processing Research/develop new approaches/algorithms for calibration, imaging, and scientific analysis tools Organizing observing and data reduction tutorials Advanced simulation capabilities to help users better plan their observations Support special observing projects: Legacy type projects or other large programs Maintain spectral line database and develop more sophisticated spectral line analysis and visualization routines Technical research for THz receiver technology through UVa Microfabrication Laboratory & NRAO Technology Center 2 Scientific Staff + 2 Scientific Programmers 1 Scientific Staff

Spectral Line catalogs and tools needed to deal with tremendous spectral complexity SgrB2(N) spectrum using Band 6 mixer at the SMT (Ziurys et al.) Unified spectral line database (to be used in observing tool) Lines visible in Band 9 (CSO) Schilke et al. (2001) 1 GHz

Community Professional Development: promote health of the mm community  Prize fellowships: Support Jansky Fellows program (4)  ALMA postdocs: 25% service (3)  ALMA students (2)  Visiting scientist program  Scientific Workshops – venues to explore future directions for ALMA  Organize and run summer schools a. Joint sponsorship of NRAO Synth. Imaging b. Joint mm techniques schools with other mm observatories c. Intensive traveling university courses on mm astronomy Staff: 2 astronomers, first starting in 2008

15 Zmachines: January 2006PPDisks: June 2007 NAASC Science Workshops

NAASC Staffing Plan ~ 13 Engineering ~ 21 Computing/software ~ 5 Archive support ~ 17 Scientific Staff ~ 5 Post-doc/Students ~ 5 EPO ~ 5 Chilean Affairs ~ 3 Management/Administrative = ~74 Comparison (excluding spacecraft functions) Chandra~150 HST~350 Spitzer~120 Begin NAASC Ramp up 2008; completed ~2012 Includes ARC and Full Science Support NAASC Director: Chris Carilli NA ARC Manager: John Hibbard C. Brogan first scientific staff Joint NRAO/UVa hire in progress Two positions advertised this Fall

Current Projected Timeline 2007 First antenna arrival and testing at ALMA site Early 2009 Commissioning Begins with 3-element array Mid 2009 Call for Science Verification projects - 6+ antennas, 2+ bands, continuum & spectral line, 1km baselines - Off line data reduction Early 2010 Call for Early Science Proposals (24+ antennas) 2012 Pipeline images for standard modes 2012 Baseline ALMA Construction Complete

NAASC: Work so Far Oct 2006 to Oct 2007  Change of AD from P. Vanden Bout to C. Carilli  C. Brogan as first NAASC astronomer (CASA ALMA sub-system scientist)  Successful reviews of AOP and NAASC proposal  Offer out and verbally accepted for next NAASC astronomer (joint with UVa)  Support 3.4 CASA programmers  Partial support for business manager & administrative assistant  Start training for ops at ATF  Support of THz SIS mixer research (NTC & UVML)  Set-up on-line spectral line catalog (A. Markwick- Kemper; A. Remijan, F. Lovas)

NAASC: Near-term tasks Oct Oct 2008  Two Scientists to perform AoD/CSV duties (at ATF till June; OSF thereafter)  Support CASA beta release  train other ARCs for user support  Bring on additional 0.5 FTE early?  Two EPO staff (matrixed to EPO division)  Continue work on spectral line catalog  Finalize Canadian & UVa MOU’s  Continued participation in test of software systems  Participate in development of pipeline heuristics  Third science workshop  Engage NAm community in discussion of future ALMA Development

The Atacama Large Millimeter Array (ALMA) is an international astronomy facility. ALMA is a partnership between Europe, North America and Japan, in cooperation with the Republic of Chile. ALMA is funded in North America by the U.S. National Science Foundation (NSF) in cooperation with the National Research Council of Canada (NRC), in Europe by the European Southern Observatory (ESO) and Spain. ALMA construction and operations are led on behalf of North America by the National Radio Astronomy Observatory (NRAO), which is managed by Associated Universities, Inc. (AUI), on behalf of Europe by ESO, and on behalf of Japan by the National Astronomical Observatory of Japan.

The End

NAASC Science Division Overview NAASC Head Office Science Division Telescope Support User Support Data Quality S/W support AoD JAO (OSF duties) ALMA Improvement Community Develop. Phase IPhase IIPost-Obs QA User- reported errors Error diagnosis Maintenance: M&C, Corr, scheduler, Offline, pipeline Adv. Algorithm Research Pipeline heuristics Obs & Calib Techniques & Doc. Splatalogue Postdocs, students Visiting scientists Schools, tutorials, workshops Helpdesk: OT (I) PRC F-2-F/ Large/ special Helpdesk: OT (II) Ver. Sched. Blocks F-2-F/ Large/ special Helpdesk: Reduction Analysis F-2-F/ Large/ special Day-2-day ops Modes/ capabilities Obs efficiency Total of 19 scientific staff (including 2 managers, 2 sci. prog) + 3 ALMA postdocs will carry out these tasks; there are also 2 admin. and 1 web developer

ALMA core functions specific to NA Office of Chilean Affairs: legal requirement to do busness in Chile. Note: All local hiring by AUI. Includes: scientst legal representative, fiscal/procurement, business, HR. Total staff supported by NAASC = 5 starting SIS mixer development: “ The international project has recognized that ALMA operations must support continuing research in SIS mixer development and then support cartridge upgrades when significant benefits are possible. Key to such support is the continued funding of SIS foundary work. Microfrabrication labs are a major resource for US astronomy and for ALMA. In the short term, repair and maintenance of existing receivers at the ALMA integration center may not be feasible in many cases as only the maker of the SIS receiver is qualified to repair it and return it to its original specifications. In the long term, ALMA hopes to continue to improve the capability of its receivers, such as improved 1/f noise for total power measurements, and at the highest frequencies, new technology is being developed to approach quantum noise limited receivers. ” Current investment: $380k/year