43rd ISYA-2023

From July 17th to August 4th 2023


43rd ISYA-2023 : Welcome to INAOE!


The International School for Young Astronomers (ISYA) is an initiative of the International Astronomical Union (IAU) to reinforce and promote the development of professional astronomy in communities around the world. The ISYA places a special emphasis on students located in areas that do not have the benefit of a local research institute that teaches most of the sub-disciplines of Astronomy.

The IAU Executive Committee has selected the Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) in Tonantzintla, Puebla, Mexico, to host its 43rd International School for Young Astronomers from July 17th to August 4th 2023. The School is organized by the Instituto Nacional de Astrofisica, Optica y Electronica (INAOE) jointly with the International Astronomical Union (IAU) and the Norwegian Academy of Science and Letters (NASL).

We expect to receive applications to attend this School from students in their early MSc/PhD studies and some senior undergraduates in the Americas, especially from Latin American and Caribbean countries.

30 students will be selected to participate in this school. All the selected students will participate in an intensive three-week program of lectures, practices and projects, with up-to-date astrophysics, both on theory and observations, led by an international team of experts. They will learn about different astronomical fields, from exoplanets to cosmology, and acquire technical expertise to analyze current astronomical data and models, mainly from access to large databases.

The official language of the School will be English. And, although the ISYA is not a research conference, we encourage to the students to submit posters to present a summary of their research projects.

Acceptance to the school covers flights to and from Ciudad de Mexico (including domestic flights), accommodation and subsistence at the ISYA. All selected students are expected to commit 100% of their time to participate in all the planned activities held over the three week duration of the school. NOtice that, apart from the academic school activities, you will also have the opportunity to experience the archaeological, artistic and scientific environments of the central valleys of Mexico through a series of cultural visits, events and travels.

We are looking forward to seeing you in Tonantzintla in 2023.




School directors

Olga Vega (Local Director of 43rd ISYA, INAOE, Mexico)
Itziar Aretxaga (ISYA Program Director, INAOE, Mexico)
David Mota (ISYA Program Deputy Director, Univ. Oslo, Norway)

Local Organizing Committee:

Olga Vega (Chair, Local ISYA Director), INAOE, Mexico
Miguel Chávez-Dagostino, INAOE, Mexico
Divakara Mayya, INAO, Mexico
Alfredo Montaña, INAOE, Mexico
Mónica Rodríguez, INAOE, Mexico
Daniel Rosa-González (Head of Astrophysical Postgraduate Studies), INAOE, Mexico
José Ramón Valdés, (Head of the Astrophysics Department), INAOE, Mexico
Javier Zaragoza-Cardiel, INAOE, Mexico

Technical Support:

Montserrat Flores, INAOE, Outreach
Tobías Gallego, INAOE, Networking
Gustavo Hernández, INAOE, Computing
Héctor López-Casique, INAOE, Web Page designer
Gabriela López-Lucio ,INAOE, Graphical Design
Gabriela Monctezuma, INAOE, Logistics
Guadalupe Rivera, INAOE, Outreach/Public Relations