Images from Bouwens et al. and Brunken et al.

ALMA probes atoms and molecules, near and far

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ALMA’s supreme capabilities to detect spectral lines across the Universe are beautifully illustrated in two recently published papers by astronomers in the Netherlands. Bouwens et al. (2022, ApJ 931, 160) give an overview of the design and results of the ALMA Large Program REBELS. Using an efficient selection scheme, REBELS detects no less than 18 star-forming galaxies with bright [CII] 158 µm ISM cooling lines, out of a sample of 40 z>6.5 systems. This makes ALMA [CII] searches as efficient as Lyα to find high-redshift star-forming galaxies. Brunken et al. (2022, A&A 659, A29) stay closer to home and detect Complex Organic Molecules (COMs) in the highly asymmetric planet-forming disk around the young star IRS48. The disk around this star has a very pronounced ‘dust and ice trap’ where material accumulates, and future planet(esimals) may form. Brunken et al. report the first detection of dimethyl ether (CH3OCH3) vapor in a planet-forming disk, and a tentative detection of methyl formate (CH3OCHO) vapor. The presence of these molecules shows that a wide variety of oxygen-carrying COMs are present in the birth environment of planets. As these two papers show, wherever ALMA turns its ‘eye’, atoms and molecules leap out at us.

ALMA Proposal Preparation Day 2022

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The Allegro ARC Node would like to invite you to attend a proposal preparation workshop on March 28, 2022. The aim of this workshop is to assist you in making the most out of ALMA’s new capabilities, getting an overview of the new modes offered, and proposal preparation through the ALMA Observing Tool (OT). We will also offer guidance with writing double-anonymous proposals and in the new stages of proposal writing and reviewing (the “distributed proposal review process”) that has been in use from Cycle 8 2021. An overview of important dates and what’s offered in Cycle 9 will be released with the Call for Proposals on March 24, 2022.

The workshop will consist of:

  1. an in-person event with the Allegro team on March 28th with a few presentations and an extensive Q&A session. The workshop will take place at Leiden Observatory, but we will organise streaming for those unable to travel.
  2. individual 1-1 support that can be booked at any time (e-mail us)

You can register to attend the workshop using this registration form. Deadline for registration: March 20, 2022

Program March 28, 2022
before 11:00 Arrival to Allegro offices (HL 1122)
11:00-11:30 Welcome coffee/tea & cookies (HL 11th floor)
11:30-12:00 ALMA science overview Katharina Immer & Aida Ahmadi
12:00-12:20 ALMA Call for proposals & capabilities in Cycle 9 Violette Impellizzeri
12:20-13:15 Lunch
13:15-13:35 Distributed peer review Katharina Immer
13:35-13:50 Dual anonymous proposal review Andrés Pérez-Sánchez
13:50-14:15 How to write an ALMA proposal Violette Impellizzeri
14:15-14:35 Break
14:35-15:10 The ALMA Observing Tool Ashley Bemis
15:10-15:30 Simulating ALMA observations Alex Hygate
15:30-15:50 Mining the ALMA archive Aida Ahmadi
15:50-16:10 Break
16:10-16:30 Open Q&A session
 
Registered participants

Michiel Hogerheijde Leiden Observatory
Violette Impellizzeri Leiden Observatory
Alex Hygate Leiden Observatory
Andrés Pérez-Sánchez Leiden Observatory
Ashley Bemis Leiden Observatory
Aida Ahmadi Leiden Observatory
Katharina Immer Leiden Observatory
Marco Grossi Observatório do Valongo, UFRJ
Sander Schouws Leiden Observatory
Maren Hempel Universidad Andres Bello , Chile
Veronica Allen University of Groningen
Wuji Wang Center for Astronomy of Heidelberg University
Pooneh Nazari Leiden Observatory
Simin Tong Leiden Observatory
Thomas Steinmetz Nicolaus Copernicus Center for Astronomy (Torun)
Di Wen Kapteyn Astronomical Institute
Agnieszka Kobak Nicolaus Copernicus Center for Astronomy (Torun)
Alice Booth Leiden Observatory
Lucas Stapper Leiden Observatory
Margot Leemker Leiden Observatory
Bayron Portilla Revelo Kapteyn Astronomical Institute
Marta Frias Castillo Leiden Observatory
Fernanda Roman de Oliveira University of Groningen
Ko-Yun (Monica) Huang Leiden Observatory

 
Directions to Leiden Observatory

The address of Leiden Observatory is Niels Bohrweg 2, 2333 CA Leiden. Note that this is not the old observatory in the center of Leiden. Instructions on how to get to Leiden Observatory, including transportation from Schiphol Airport or the central trains station, can be found here. Leiden Observatory is located on the 4-5th floors of the Oort building (seen on the right in the photo below), and the Huygens building (the taller building seen on the left in the photo below). Allegro offices are located on the 11th floor of the Huygens building.

Upon arrival and before the start of the event, join us on the 11th floor of the Huygens building for tea, coffee, and cookies. The workshop will take place in room HL 106-109 on the 1st floor of the Huygens building. We will have signs and there is also a reception at the entrance of the building where they can provide you with directions.

For those joining us online, connection details will be sent to you by email before the start of the event.

lorentzcenter

 

Useful resources:

Hands up for a community assembly!

Fifth European ALMA Regional Centre community assembly

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The Fifth European ALMA Regional Centre community assembly meeting will take place virtually on the 24th of March at 11:00 AM CET and can be accessed via this Microsoft Teams link. During the meeting, staff from the European ALMA Regional Centre will present updates on the current and future ALMA cycle, including the imminent ALMA cycle 9, which is scheduled to be announced the day before the meeting. In addition, you will hear about the support for using ALMA that the European ARC network offers the community. There will also be a dedicated question and answer session where staff from the European ALMA Regional Centre will be on hand to answer your questions.

ALMAxLeiden - Lettering

ALMAxLeiden – Astronomy-inspired, self-guided city walking tours through Leiden

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As part of the European City of Science Leiden 2022 project, Allegro is developing the ALMAxLeiden project: a series of self-guided walking tours in Leiden. The aim of ALMAxLeiden is to introduce the public to the concept of interferometry and specifically to ALMA in a fun and creative way. The ALMA observatory spans roughly the same size as the city of Leiden. By virtually stationing each of the 66 ALMA antennas at public locations in Leiden, we have turned Leiden into an ALMA observatory. Through self-guided walking tours, participants embark on journeys to ‘observe’ an astronomical object by visiting a subset of these virtual antennas. At each location a new part of the story gets revealed, and participants get to answer trivia questions about ALMA or solve astronomy puzzles. Visiting each location means observations from that antenna have been obtained, hence the astronomical object being ‘observed’ becomes clearer. By the end of the walking tour, the participants will have learned about ALMA and gained a better understanding of radio astronomy and the interferometric technique. The first ALMAxLeiden walking tour is ready to be launched on March 30th, and we are currently in the process of developing a walking tour intended for young kids. Stay tuned for more information!

ALMA at the European Astronomical Society meeting

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The next meeting of the European Astronomical Society will take place in Valencia (Spain) from 27 June to 1 July 2022. This conference will be in-person. The abstract submission deadline has already passed but registration is open until the start of the conference.

Building bridges: The lifecycle of dust and gas in the Milky Way with ALMA and SKA – EAS S7 symposium

Our Galaxy and its immediate neighbourhood are the only regions where we can undertake detailed studies of the physics driving the formation and evolution of astrophysical objects throughout the entire life cycle of the interstellar medium. ALMA is playing a groundbreaking and fundamental role in the study of a broad range of environments and phenomena due to its unprecedented spatial resolution and sensitivity. At the same time, the Square Kilometre Array (SKA) is now under construction, and it will provide a unique perspective on our Galaxy, complementary to that of ALMA.

Within the life cycle of dust and gas, accretion, fragmentation, feedback, astrochemistry, and temporal changes are common to many astrophysical objects. The respective communities investigating these objects often do not interact – even though they are using many of the same techniques. Symposium 7 is dedicated to building bridges between communities studying events of similar nature in the life cycle of gas and dust but at different astronomical scales and in different environments. The program of the symposium contains five invited talks focusing on accretion and fragmentation on large and small spatial scales, feedback in star-forming regions and evolved stars as well as synergies between ALMA/SKA and other observing facilities.

This style of event- instead of object-focused symposium will hopefully attract many contributors from different fields and communities, lead to interesting discussions and foster new collaborations.

More information about the topics and programme of the symposium can be found here:

ALMA in Europe: support by the European ALMA Regional Centre Network and new ways of interacting with data through the ALMA Science Archive

In this lunch session we aim to present to the European astronomical community how ALMA user support in Europe has evolved over the last years, the various types of support it offers, and the ways the European astronomical community can make use of this support. We will provide an update on the ALMA Science Archive and the tools that were developed to maximise its science output. We will furthermore discuss the outcomes of the ALMA Redesign the User eXperience (RedUX) project and show some of the actions that have been taken regarding user support and archive development. We will finish by taking time to discuss recent relevant changes within ALMA that are of direct interest to the astronomical community, including for example the distributed peer review system of proposals and how the connection between the astronomical community and the European ARC network can be further improved. More information can be found here.

During the conference, ALMA will have a booth in the exhibition space where interested conference participants can visit to ask questions about ALMA and the ARC network and take home merchandise.

ALMA antennas

ALMA Cycle 9 Proposal Preparation Workshop

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The Allegro team will host the ALMA Cycle 9 Proposal Preparation Workshop on March 28th, 2022. You should not miss this workshop if you are planning to write an observing proposal for the coming cycles of the ALMA telescope! The registration deadline is Monday, March 21st 2022.

We plan to have presentations/talks to explain the brand new capabilities offered for the new ALMA cycle, the Observing Tool, and how to make simulation of ALMA observations which could make your science case stronger. For newcomers, we will also have a presentation about ALMA use cases to inspire proposal ideas. In addition, we will present overviews about the Dual Anonymous procedure and the Distributed Peer Review process.

In fact, all proposals will be reviewed using the dual anonymous procedure, and for this new call, proposals requesting less than 50 hours on the 12-m Array, and less than 150 hours with the 7-m antennas, will be reviewed through the distributed peer review system.

The long baselines configurations are back in the list of array configurations for Cycle 9. With that, minimum and maximum baselines offered are 0.16 and 16.2 km, respectively. In addition, high frequency observations with long baselines can now be requested.

Moreover, new for this new cycle is the possibility to request VLBI observations of Continuum in Band 7, and VLBI Spectral Line observations in Band 3, as well as localised Solar mapping scans in bands 3, 5, 6 and 7 with Total Power antennas.
For more details, check the Cycle 9 pre-announcement!

CASA logo

ALMA Data Reduction Training Day: November 30, 2021

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Following the 5th Netherlands ALMA Science Day, on Tuesday, November 30, 2021, we will host an ALMA Data Reduction Training Day that will follow a hybrid format: all presentations and hands-on activities can be followed online, but we also have physical workspaces available in Leiden for those who wish to make use of these.

The training will begin at 9 AM and continue into the afternoon with coffee breaks and an hour lunch break. In the first part, the Allegro team will be presenting a series of talks that cover the following topics: how to go from the archive to obtaining calibrated visibilities, calibration, imaging, self-calibration, and analysis tools. There will be a short Question & Answer session at the end of each talk (approximately five minutes), with a longer general Q&A session at the end of the talk series.

In the afternoon, we will host an interactive workshop during which we will take you through the following topics:

  • Inspection of data quality
  • Continuum subtraction
  • Basics of imaging
  • Self-calibration
  • Advanced imaging techniques
  • Analysis tools

The workshop will make use of CASA Guides that are readily available online, and we will provide you with the dataset we will be using on the day of the workshop.

Program* November 30, 2021
9:00-9:05 Zoom connection opens
9:05-9:15 Welcome
9:15-10:00 Aida Ahmadi ALMA data: From the archive to calibrated visibilities
10:00-10:30 Katharina Immer Calibration
10:30-10:45 Coffee break
10:45-11:30 Ashley Bemis Imaging
11:30-12:00 Andrés Pérez-Sánchez Self-calibration
12:00-13:00 Lunch break
13:00-13:20 Alex Hygate Analysis Tools
13:20-13:45 Alex Hygate Simulating ALMA observations
13:45-14:00 Discussion – Q&A
14:00-14:15 Coffee Break
14:15-17:00 Guided ALMA data reduction workshop (slides)

* Note that this is a rough schedule as we plan to dedicate plenty of time for questions after each session.

Registered participants: (Last update 24-11-2021)

Michiel Hogerheijde Leiden Observatory
Violette Impellizzeri Leiden Observatory
Aida Ahmadi Leiden Observatory
Alex Hygate Leiden Observatory
Andrés Pérez-Sánchez Leiden Observatory
Ashley Bemis Leiden Observatory
Katharina Immer Leiden Observatory
Marta Frias Castillo Leiden Observatory
Naadiyah Jagga Leiden Observatory
Violeta Gamez Rosas Leiden Observatory
Lucas Stapper Leiden Observatory
Lisa Wölfer Leiden Observatory
Christian Ginski Leiden Observatory
Agnieszka Kobak Nicolaus Copernicus University
Milou Temmink Leiden Observatory
Ko-Yun (Monica) Huang Leiden Observatory
Anna Bartha-Veres Leiden Observatory
Yuan Chen Leiden Observatory
Ian Roberts Leiden Observatory
Mariam Abdallah Leiden Observatory
Fangyou Gao Kapteyn astronomical institute
Jurrian Meijerhof Leiden Observatory
Hanneke Poorta API
Sicen Guo Leiden Observatory
Luna van Haastere Leiden Observatory
Prathap Rayalacheruvu National Institute of Science Education and Research
Joshua Butterworth Leiden Observatory
Pooneh Nazari Leiden Observatory
Theodorus Topkaras Leiden Observatory
Directions to Leiden Observatory

Note that this is not the old observatory in the center of Leiden. Instructions on how to get to Leiden Observatory, including transportation from Schiphol Airport or the central trains station, can be found here. Note that these instructions specify the route to the Lorentz Center, which is in the building on the right in the photo below (Oort building). The event will be held in the joining taller building –  Huygens building. Leiden Observatory is located on the 4-5th floors of both buildings, and the Allegro offices are located on the 11th floor of the Huygens building.

Locations inside the building

Workspaces reserved for the ALMA Data Reduction Training Day on November 30, 2021 are located in room HL-111 on the 1st floor of the Huygens building. There is a reception at the entrance of the building where they can provide you with directions.

lorentzcenter

5th Netherlands ALMA Science Day: Nov 29, 2021

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Allegro announces the 5th Netherlands ALMA Science Day, that will take take place on Monday, November 29, 2021. Due to changes in COVID-19 regulations, we will now be hosting this event fully online.

At the Science Day, we will share the latest scientific results obtained with ALMA by the Netherlands astronomical community. Guest speakers include Alice Booth (Leiden University, on the Molecules with ALMA at Planet-forming Scales [MAPS] Large Program), Eva Schinnerer (MPIA Heidelberg, on Resolved molecular gas properties of nearby massive star-forming galaxies from the PHANGS Large Program), and Gergö Popping (ESO, with the latest news from ALMA). In addition, contributed talks cover a wide range of science topics, including protoplanetary disks, molecular clouds, and high-redshift galaxies. A few openings are still available for contributed talks, and we welcome contributions in all science areas. The meeting will also allow ample time to discuss user experiences and other ALMA related topics.

Following the Science Day, on Tuesday, November 30, 2021, we will also host an introductory ALMA Data Reduction Training Day that will follow a hybrid format: all presentations and hands-on activities can be followed online, but we also have physical workspaces available in Leiden for those who wish to make use of these. At this workshop, Allegro fellows will introduce CASA and ALMA data reduction, share tips & tricks, and offer extensive hands-on training in data imaging and analysis.

 

— Connection details will be sent to registered participants —

We look forward to seeing many of you at our – online – Science Day!

Program November 29, 2021
10:55-11:00 Zoom connection opens
11:00-11:05 Welcome (Violette Impellizzeri)
11:05-11:35 Alice Booth (Invited) Molecules with ALMA at Planet-forming Scales – an ALMA large program to understand the chemistry of planet formation
11:35-11:50 Alex Hygate Discovery of a massive, highly star-forming, morphologically complex ULIRG at z = 7.31
11:50-12:05 Ko-Yun (Monica) Huang The chemical footprint of AGN feedback in the outflowing circumnuclear disk of NGC1068
12:05-12:20 Lucas Stapper The mass and size of Herbig disks as seen by ALMA
12:20-13:00 Social Lunch
13:00-13:30 Eva Schinnerer (Invited) Resolved molecular gas properties of nearby massive star-forming galaxies
13:30-13:45 Michael Janssen The latest results from the Event Horizon Telescope: Zooming into the heart of Centaurus A
13:45-14:00 Lisa Wölfer Spiral structures in the gas disc of CQ Tau
14:00-14:15 Filippo Fraternali Fast rotating and not-so-turbulent discs in z~4 galaxies
14:15-14:30 Nikki Zabel The Virgo environment traced in CO: how do HI-identified environmental mechanisms affect the molecular gas in cluster galaxies?
14:30-14:50 Break
14:50-15:05 Christian Ginski From microns to mm – multi wavelength studies of circumstellar disks
15:05-15:20 Raffaella Morganti ALMA view of the molecular gas in radio galaxies
15:20-15:40 Violeta Gamez Rosas NGC 1068 MATISSE imaging and thermal map of the dust close to the AGN
15:40-16:00 Gergö Popping ALMA Status Update
16:00-16:20 Discussion
Closing remarks

 

Registered participants: (Last update 24-11-2021)

Michiel Hogerheijde Leiden Observatory
Violette Impellizzeri Leiden Observatory
Leen Decin KU Leuven
Rychard Bouwens Leiden Observatory
Aida Ahmadi Leiden Observatory
Alex Hygate Leiden Observatory
Andrés Pérez-Sánchez Leiden Observatory
Ashley Bemis Leiden Observatory
Katharina Immer Leiden Observatory
Alice Booth Leiden Observatory
Eva Schinnerer Max Planck Institute for Astronomy (MPIA)
Michael Janssen Max Planck Institute for Radio Astronomy (MPIfR)
Marta Frias Castillo Leiden Observatory
Naadiyah Jagga Leiden Observatory
Huib van Langevelde JIVE/Leiden Observatory
Felix Semler University of Groningen
Violeta Gamez Rosas Leiden Observatory
Lucas Stapper Leiden Observatory
Lisa Wölfer Leiden Observatory
Christian Ginski Leiden Observatory
Agnieszka Kobak Nicolaus Copernicus University
Milou Temmink Leiden Observatory
Jim Shih API, University of Amsterdam
Lingyu Wang SRON
Gergö Popping ESO
Margot Leemker Leiden Observatory
Raffaella Morganti ASTRON & Kapteyn Astronomical Institute (Groningen)
Filippo Fraternali Kapteyn Astronomical Institute (Groningen)
Nikki Zabel Kapteyn Astronomical Institute (Groningen)
Alessia Annie Rota Leiden Observatory
Osmar Manuel Guerra Alvarado Leiden Observatory
Ko-Yun (Monica) Huang Leiden Observatory
Anna Bartha-Veres Leiden Observatory
Yuan Chen Leiden Observatory
Per-Gunnar Valegard API, University of Amsterdam
Ian Roberts Leiden Observatory
Karla Mariana Rojas Martinez API, University of Amsterdam
Mariam Abdallah Leiden Observatory
Fangyou Gao Kapteyn Astronomical Institute (Groningen)
Jurrian Meijerhof Leiden Observatory
Hanneke Poorta API, University of Amsterdam
Sicen Guo Leiden Observatory
Luna van Haastere Leiden Observatory
Andres Felipe Ramos Padilla SRON/RUG
Prathap Rayalacheruvu National Institute of Science Education and Research
Joshua Butterworth Leiden Observatory
Pooneh Nazari Leiden Observatory
Theodorus Topkaras Leiden Observatory

ALminer: ALMA archive mining and visualization toolkit

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It is our pleasure to announce the release of ALminer: ALMA archive mining and visualization toolkit!

ALminer is a novel Python-based code that enables users to efficiently query, analyse, and visualize the ALMA Science Archive. Users can programmatically query the archive for positions, target names, or any other keywords in the archive metadata (e.g. proposal title, abstract, scientific category) in a simple way. ALminer’s plotting routines allow the query results to be visualised, and its analysis functions allow users to filter the results and check whether certain frequencies of interest are covered in the queried observations. The code also allows users to directly download ALMA data products in FITS format and/or the raw data that can be used for manual image processing. ALminer has been designed to make mining the ALMA archive as simple as possible, while being flexible to be customised according to the user’s scientific interests. The code is released with a detailed tutorial Jupyter notebook, introducing ALminer’s common functions as well as some of its more advanced options.

For more information about how to install and use ALminer, please visit the documentation or GitHub pages.

ALminer is a collaboration between Allegro, the ALMA Regional Centre in The Netherlands, and the University of Vienna (Austria) as part of the EMERGE ERC-StG project. With the public release of this new software, our goal is to provide the astronomical community with a new easy-to-use toolkit that facilitates the scientific exploitation of the rich ALMA science archive.

If you use ALminer as part of your research, please consider citing Ahmadi & Hacar 2021.

For suggestions and collaborations, please e-mail Aida Ahmadi.

ALminer example

Example of ALminer query for the science keywords “High-mass star formation” with an overview plot of queried observations.

ALMA Proposal Preparation Day 2021

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The ALMA Cycle 8 2021 Call for Proposals is now open with a submission deadline on April 21, 2021. 

The Allegro ARC Node would like to invite you to attend a proposal preparation workshop. The aim of this workshop is to assist you in making the most out of ALMA’s new capabilities, getting an overview of the new modes offered, and proposal preparation through the ALMA Observing Tool (OT). We will also offer guidance with writing double-anonymous proposals and in the new stages of proposal writing and reviewing (the “distributed proposal review process”) that will be in use from Cycle 8 2021.

The format of our workshop will be virtual, and it will consist of:

  1. a live online event with the Allegro team on March 29th with a few presentations and an extensive Q&A session
  2. online video tutorials that will be uploaded after the online event (watch last year’s video tutorials here)
  3. online drop-in sessions on Wednesdays 14-15 and Fridays 9-10
  4. individual 1-1 support that can be booked at any time (e-mail us)

Our online event will be used to address questions related to proposal submission and the distributed proposal review process that will be adopted from Cycle 8 2021 onwards. Since proposals will have to be written in a fully double-anonymous fashion this year, the Allegro team will provide advice on how this can be achieved, and explain how one can refer to unpublished data and previous ALMA projects without accidentally violating the double-anonymous guidelines.

You can register to attend the online event on March 29th using this registration form.

An overview of important dates and what’s offered in Cycle 8 2021 can be found in the Call for Proposals. As a reminder, the Cycle 8 2021 will include configurations from C-1 up to C-8, with a special focus on high frequency observing. New capabilities that will be offered include Solar observations in Band 5, a passive-phasing mode for VLBI, high-frequency observations (Bands 9 and 10) with the stand-alone 7-m array, mosaicking of continuum line polarisation observations (Bands 3 to 7), spectral scans with the 7-m Array and up to 75 hours of full polarisation observations of a single field with the 7-m Array. No long baseline observations are offered in Cycle 8 2021.

We look forward to seeing many of you at the ALMA Proposal Preparation Day on March 29th! Meanwhile, don’t hesitate to e-mail us if you have questions, concerns, or need support. We would be happy to set up a remote meeting with you. PIs who are considering a Large Program are especially encouraged to contact Allegro early so we can explore the many ways we can support your project and help optimize your program.

Program March 29, 2021
9:30 Welcome
9:35-9:50 Violette Impellizzeri ALMA Call for Proposals & Capabilities in Cycle 8 2021
9:50-10:10 Katharina Immer Distributed Peer Review
10:10-10:30 Aida Ahmadi Dual Anonymous Proposal Review
10:30-10:45 Break
10:45-11:20 Ashley Bemis & Andrés Pérez-Sánchez The ALMA Observing Tool
11:20-11:40 Alex Hygate Simulating ALMA Observations
11:40-12:00 Aida Ahmadi Archive Mining
12:00 Open Q&A Session
Registered participants: (Last update 25-03-2021)
Michiel Hogerheijde Leiden Observatory
Violette Impellizzeri Leiden Observatory
Alex Hygate Leiden Observatory
Andrés Pérez-Sánchez Leiden Observatory
Ashley Bemis Leiden Observatory
Aida Ahmadi Leiden Observatory
Katharina Immer Leiden Observatory
Pooneh Nazari Leiden Observatory
Marta Frias Castillo Leiden Observatory
Ian Roberts Leiden Observatory
Kirsty Butler Leiden Observatory
Leindert Boogaard Leiden Observatory & MPIA
Jakob van den Eijnden University of Oxford
Fernanda Roman de Oliveira Kapteyn Astronomical Institute
Matthew Kenworthy Leiden Observatory
Danial Rangavar Langeroodi Leiden Observatory
Belen Alcalde ESO
Maximilian Beyer VU Amsterdam
Martijn van Gelder Leiden Observatory
Cristina Garcia Leiden Observatory
Antonello Calabro INAF OAR
Jozsef Varga Leiden Observatory
Audrey Coutens IRAP
Dominika Itrich ESO
Di Wen Kapteyn Astronomical Institute
Daniele Aragao Ronso da Costa Lima Kapteyn Astronomical Institute
Lucas Stapper Leiden Observatory
Olga Bayandina Joint Institute for VLBI ERIC
Lisa Wölfer MPE Garching/Leiden Observatory
Elielson Soares Pereira IAG-USP (Brazil)
Heitor Ernandes USP
Joshua Butterworth Leiden Observatory
Louise Lamblin Leiden Observatory
Sicen Guo Leiden Observatory
Ko-Yun (Monica) Huang Leiden Observatory