Array combination workshop

Bologna, Italy, 2024

The Italian ARC node is glad to announce a workshop on the ALMA arrays combination that  will be held in Bologna at the Italian ARC node between 16th and 18th October 2024.

Program

Different tools and methods for array combination will be discussed with hands-on sessions. Here the agenda (Italian time zone):

Data and scripts used for the workshop are available here.

16th October (14 30 – 18.00)

• 14 30 Introduction [Petry]:
  • Motivation – why “Data Combination”?
  • How does ALMA support data combination?
  • Data Combination methods available in/via CASA
  • Impact of uv coverage defects on image properties
• 16 00 coffee break
• 16 30 Hands-on session on combining ACA + Main array (and Main array different configurations) – slides for all the hands-on sessions[Plunkett] 

 17th October (9 00 – 17 30) 

• 9.00 Finalise ACA + main array [Plunkett]
• 10 00 Discussion session on Users problems in combining interferometric data (30 mins) [chairs: Massardi + Liuzzo]  
  • Astrometry, flux variability among executions [Carmen Toribio]
  • The Problems Imposed by uv-Coverage in Multifrequency Analyses [George Bendo]
  • Array combination successes, single dish issues and remaining challenges [Anita Richards]
• 10 30 Coffee break
• 11.00 TP + ALMA interferometric data in details : 
  • Description of the 3 methods
    • Feather + MACF [Bonanomi]
    • SDintimaging [Petry]
• 12.30 Lunch

• 13.30 Users TP + interferometric data issues [chairs: Massardi + Liuzzo]
  • Mosaic & Short spacings in IMAGER [Stéphane Guilloteau/ Edwige Chapillon]
  • Combining ALMA 12m, 7m & TP data for the ACES LP [Daniel Walker]
  • Forward modeling approaches to fitting CMB survey data with ALMA+ACA observations [Tony Mroczkowski]
  • Combination of ALMA data with CMB survey data to fill in the large spatial scales [Joshiwa van Marrewijk]
• 14 15   Success Assessment metrics  [Plunkett]
• 15 45 coffee break
• 16 15  “assess_ms” – uv coverage assessment [Petry]
• 16 45 Hands-on session on combining TP + ALMA interferometric data  [Plunkett + Bonanomi]

• 19 30 social dinner at ‘Ristorante Nino‘

18th October (9 30 – 12 30)

• 9.30 Composition result inspection [Plunkett + Bonanomi]
• 10 30 coffee break
• 11 00 combining data from different ALMA projects [Marcella]
• 11 30 Combining ALMA 12m/ACA with other TP (e.g. IRAM 30M) [Bonanomi] 
• 12 00 Final Q&A  session [chairs: Massardi + Liuzzo]

• 12 30 lunch

Participants

Venue, logistics and contact

The meeting will be held at the Congress Centre of the CNR-campus, via Gobetti 101, Bologna, Sala 216.

Coffee breaks and lunches are offered by the IT ARC node.

Directions to reach the campus can be found here
Hotels close to the campus are listed here.

For any request please contact the Italian ARC: help-desk@alma.inaf.it