1st International Workshop on Solar Imaging with ALMA

Goal

What do we want to achive in the workshop?

Group photo taken on 4th March 2020

Solar observations with ALMA have been offered since Cycle 4 (2016–2017), and all solar data of Cycle 4 and a part of the data of Cycle 5 (2017–2018) have already been released to the public. However, non-experts in the field of radio interferometers have some fundamental difficulties in analyzing the ALMA solar data. The most difficult obstacle to overcome in achieving scientific results from the ALMA solar data is the issue of image synthesis. To overcome this difficulty, we hold the workshop for discussing and resolving the problems of solar image synthesis.

Date & Timetable

2 - 5 March 2020 & 6 March 2020

Although the official main part of the workshop ends on March 5, we can use the meeting rooms of RoCS until Friday (6 March) for continuing the work begun during the workshop.

Timetable

2 March 2020
10:00 -- 10:10	Welcome address / Information from LOC
10:10 -- 11:00	Overview of on synthesis imaging, deconvolution, and self-calibration T. Bastian (NRAO)
11:00 -- 11:30	Summary of the current solar calibration in the QA2 process and its problems/Single-Dish I. Skokic (Hvar Observatory)
11:30 -- 12:00	Summary of the current solar calibration in the QA2 process and its problems/Interferometer M. Shimojo (NAOJ)
12:00 -- 13:30	<Lunch Break>
13:30 -- 17:00	Status report of the development of solar image synthesis - From EU-ARC: M. Barta - From JAO/ESO: N. Phillips - From EA-ARC: M. Shimojo - From UiO: M. Szydlarski
15:15 -- 15:30	Single-dish mappings S. White
15:30 -- 16:00	<Cofee Break>
16:00 -- 16:20	Development of tools for solar research with ALMA at RoCS: S. Wedemeyer (UiO)
16:20 -- 17:00	Discussion - Aims of the Workshop and development priorities
17:30	Reception
3 March 2020
9:30 -- 10:15	Summary of the workshop "Radio Interferometer and Single-Dish Data Combination" at Leiden T. Bastian (NRAO)
10:15 -- 10:45	Introduction of the datasets for the workshop
10:45 -- 11:00	<Coffee Break>
10:15 -- 10:45	Grouping Candidate groups A participant can join plural groups. Team A [INT] Self-calibration and its evaluation; How to do we look for suitable parameters for each science? Team B [INT] How to apply the self-calibration for MOSAIC data? Team C [INT] Tiger team for solving the issues in QA2 cal; anomalies of T_ant and XX-YY asymmetry. Team D [SD] Tiger team for solving the problems in QA2 cal; flux calibration, and the scan pattern/serrations at the limb. Team E [INT/SD] What is the best way to combine the solar INT and SD data? Team F Astrometry and pointing
12:00 -- 13:30	<Lunch Break>
13:30 -- 17:00	Discussion and data Analysis
4 March 2020	All-day for discussion and data Analysis
5 March 2020
9:30 -- 12:00	Discussion and data Analysis
12:00 -- 13:30	<Lunch Break>
13:30 -- 15:30	Summary report from each group
15:30	The workshop is ended officially.
6 March 2020	The meeting rooms are kept for the participants of the workshop.

[[Caution]]
The data analysis in the workshop should be carried out on your PC. Please bring your laptop PC. It is good that CASA and SSW+IDL can be use on your PC.

Travelling & Hotels

VISA to visit Norway

Do you need a visa to visit Norway? ⇒ UDI's page
Who do not need a visa to visit Norway?⇒ UDI's page

Official travel guide to Oslo ⇒ Oslo Visitor Center

How to get RoCS from the city center of Oslo

Option 1: 3min walk from subway station “Blindern”. Lines 4+5. Connected to city centre (and city ring) frequently. About 10min from city centre.
Option 2: 5min walk from tram station “Universitetet”. Lines 17+18. Connected to city centre (about every 5min).

Google Map: Svein Rosselands Hus, Sem Sælands vei 13

Hotels

The following list is our choice. There are many other hotels. Prices are typically around 1000-1300 NOK per night (breakfast included) but it might be possible to find something cheaper, too. We recommend booking something near a subway station as that is very convenient. We do not book a room for you. Please book yourself.

Closer to the university

0) Thon Hotel Gyldenløve / takes about 20min walking to the institute

SOC/LOC

SOC	(Alphabet order)
	Miroslav Barta (CAS)
	Tim Bastian (NRAO)
	Masumi Shimojo (NAOJ)
	Sven Wedemeyer (UiO)
LOC	(UiO)
	Sven Wedemeyer [Chair]
	Mikolaj Szydlarski
	Shahin Jafarzadeh
	Henrik Eklund
	Juan Camilo Guevara Gomez
	Sneha Pandit

This workshop is supported by the Rosseland Centre for Solar Physics and the SolarALMA project with funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 682462), and by the Research Council of Norway through its Centres of Excellence scheme, project number 262622.