This call aims to support research visits to European institutes that provide direct training and expert guidance in multi-messenger astronomy. The program covers a wide range of domains, including gravitational waves, neutrinos, cosmic rays, and photons across the entire electromagnetic spectrum, from very-high-energy gamma rays to X-rays, UV, optical, near-infrared, and radio bands. The goal is to enhance and expand expertise in the observational, data analysis, and theoretical aspects across the various ACME messengers and multi-wavelength domains.

Eligible candidates are scientists from research institutes and universities in both EU and non-EU countries.

The first call opens on 6 March 2025, with a submission deadline of 6 April 2025 at 17:00 CET. Research visits are expected to take place before the end of September 2025.

Proposals must be submitted via the website (see form below) by individual scientists, ranging from PhD candidates to senior researchers. The visit duration is 5 working days for one-week visits and 10 working days for two-week visits. Travel costs and daily allowances will be reimbursed based on actual local expenses, with typical reimbursement rates of 400€ for travel and 130€/day for subsistence.

Applicants are required to describe how the proposed visit will benefit their research, provide a ranked list of up to two potential hosts, and explain how they would make use of the expertise available at each host institution. Additionally, they must submit their CV, and PhD students should include a brief covering letter from their supervisor.

Since the majority of the TNA users must work in a country other than the country of the visiting host institution, it is recommended that applicants choose a host institution in a country other than their current place of work.

Access for a User(s) not working in an EU Member State or Horizon Europe-associated country is limited to 20% of the total amount of Units of Access provided under the ACME grant.

By clicking on the name of each institution, you will find detailed information about the expertise provided and the scientists involved.
For each institute, the applicant can find the email of the main contact scientist who can provide more information.

Visiting users will be selected through a competitive process based on the quality of the scientific applications and the suitability between the proposed project and the required TNA providers.

Proposals will be peer-reviewed by the ACME selection panel, consisting of six renowned experts in the ACME domains. Proposals will be ranked based on scientific merit. Priority will be given to students, early-career researchers, and in general non-skilled users. Additionally, the panel will consider location and gender balance.

The dates of the visit will be agreed between the user and the host institution’s experts within the period specified in the call.

During the visit, the user will be provided with office space, internet access, and access to high-performance computing resources (if included in the planned activities). One or more experts will be assigned as contact scientists, responsible for training, mentoring, and ensuring the availability of software packages, documentation, tutorials, and hands-on sessions. Experts will be available throughout the visit to support the user.

The host institute is committed to providing an intellectually stimulating environment, encouraging the user to participate in the institution’s regular research activities (such as seminars, group meetings, and journal clubs) to foster collaborations that can continue after the user returns to their home institution. The institute will also offer practical assistance with arranging travel and accommodation for the visit. Users are responsible for any visa and both travel and medical insurance requirements.

Following their visit, users will be asked to submit a brief report and provide feedback.

Publications resulting from work carried out under ACME TNA activity must acknowledge the support of the European Community and the ACME Project (grant agreement n. 101131928) and should include the following acknowledgment:

This paper is supported by the European Union’s Horizon Europe research and innovation programme under grant agreement No 101131928, project ACME.

Each selected user is required to provide the contact person at the host institute and the coordinators of the Centres of Expertise with a list of publications resulting from the work conducted under this TNA activity, published in journals or conference proceedings. For each publication, please include the following details:

• • The title of the user project that led to the publication
  • Authors, Title of the publication, Year of publication
  • Type of publication (e.g., article in a journal, conference proceedings, book/monograph, book chapters, thesis/dissertation, etc.)
  • DOI (if available)
  • Whether the publication is available under Open Access”

Application form for TNA call

The call is now closed.