06/10/2006 IRAM Interferometry School 1

ARC node at IRAMF.Gueth – IRAM Grenoble

06/10/2006 IRAM Interferometry School 2

ALMA @ IRAM

• IRAM deeply involved in ALMA construction• Hardware:

– band 7 (280—360 GHz) development and (pre-)production

– receiver common optics– backend samplers

• Software & proto-ARC:– scientific software requirements (SSR) group– real-time telescope calibration pipeline– tests of prototype antennas

Band 7, Lazareff et al. IRAM

Band 7 noise temperature, 8 GHz IF (Maier et al. IRAM)

06/10/2006 IRAM Interferometry School 5

ARC node at IRAM

• IRAM partners• CNRS (France)• MPG (Germany)• IGN (Spain)

• ARC node at IRAM also supported by • French community• Spain ALMA committee

• IRAM open to all astronomers: 30% observing time outside partner countries, TNA RadioNet FP6

06/10/2006 IRAM Interferometry School 6

IRAM millimeter interferometry

center• IRAM ARC node will be an activity of the

IRAM millimeter interferometry center

• Center is already in place – GILDAS software (CLASS, CLIC, …)– PdBI f2f user support since >10 years– mm-interferometry school series since 1998– general expertise in mm-

interferometry calibration and imaging techniques

06/10/2006 IRAM Interferometry School 7

ARC node at IRAM

• Goals of mm-interferometry expertise center: User formation User face-to-face support Technical expertise center Data reduction software

• Based on and fully open to collaborations with other groups

• Several actions already started or planned

06/10/2006 IRAM Interferometry School 8

User formation

• Interferometry school series 5th school Oct. 2-6 2006, 66 participants

• Long-period visits of PhD/postdocs– Formation to mm-interferometry techniques

and data reduction, observations at PdBI (new access)

– Can start in 2007 (new building available)– Please contact us if interested

IRAM mm-interferometry school

series

• Every two years since 1998

• General introduction to mm-interferometry, PdBI data reduction, introduction to ALMA

• ALMA practical session in 2008 ( Early Science)

• Lectures and book available on the web

06/10/2006 IRAM Interferometry School 10

User f2f support

• In place at IRAM for PdBI since ~10 years – Each project has a local contact to help

during the data reduction at Grenoble

• Will be extended to support ALMA users – Critical for early-science required in

2009

06/10/2006 IRAM Interferometry School 11

Technical Expertise

• ALMA commissioning – GILDAS to be used for antenna SD

holographies

• New observing mode: OTF interferometry development at PdBI then ALMA (EU-FP6)

• Using Jupiter satellites as mm flux calibrators: PdBI/30m project started (collab. with Paris Obs.)

• ALMA imaging simulator

06/10/2006 IRAM Interferometry School 12

Software devl’t

• Software developments for ALMA: – telescope calibration pipeline– GILDAS/CLIC adapted for ALMA holographies– goal: long-term support/upgrade of ALMA software

• pyGILDAS development: interoperability of the data reduction software (collab. with Bordeaux Obs.)