Author: Marcus Mohring

Area of Research:  Any field of theoretical astrophysics
CITA offers two types of Fellowships:

CITA Postdoctoral Fellowship: This fellowship will be held at CITA, University of Toronto. All CITA Postdoctoral Fellowship applicants with overlap in astroparticle physics will also be considered for a joint McDonald Institute-CITA Fellowship to be held at the University of Toronto. Salary: $81,500

CITA National Fellowships: These positions are jointly funded by CITA and a faculty member (host) from another Canadian university. The National Fellowship is based at the University of the host. Applicants are strongly encouraged to contact potential hosts directly about these fellowships for more information. An applicant can select up to two possible hosts/locations for a National Fellowship. Salary: varies by location and is communicated in the offer letter.
Applicants can apply for one, or both Fellowship types listed above.
Application deadline: November 2nd 2026.

Description of duties: 

Fellows are expected to carry out original research in theoretical astrophysics under the general supervision of the permanent faculty whose interests include: astrophysical dynamics, early universe, physical cosmology, interstellar and intergalactic matter, plasma physics and compact objects, galaxy, star, black hole and planet formation, stellar physics, high energy astrophysics and gravitational waves.

Required qualifications: 

Recent PhD in any field relevant to theoretical astrophysics

Application Instructions:

Interested applicants should submit:

1. a curriculum vitae,
2. statement of research interests (up to 3 pages),
3. publication list (for papers to which you have contributed significantly, please describe in one sentence your role in the research),
4. three letters of recommendation.

All postdoctoral applicants have the option of applying simultaneously for a CITA Postdoctoral Fellowship (based at the University of Toronto) and/or a CITA National Fellowship (based at the respective university of their chosen academic host) through the same application portal. If you are applying as a National Fellow, choose up to two hosts from the list of host faculty for 2027 and connect with them by email to discuss your intention to apply.

Apply online at https://icat.cita.utoronto.ca/pdf/ by November 2, 2026.

Only electronic submissions will be accepted.

Please contact office@cita.utoronto.ca for inquiries

Supervisor:  Faculty members of CITA

Expected start date: September 1, 2027

Term:  3 years

FTE: 100%

The normal hours of work are 40 hours per week for a full-time postdoctoral fellow recognizing that the needs of the employee’s research and training and the needs of the supervisor’s research program may require flexibility in the performance of the employee’s duties and hours of work.

Employment as a Postdoctoral Fellow at the University of Toronto is covered by the terms of the CUPE 3902 Unit 5 Collective Agreement.

This job is posted in accordance with the CUPE 3902 Unit 5 Collective Agreement.

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Northwestern University and The University of Chicago are accepting applications for the Northwestern - UChicago Brinson Postdoctoral Fellowship in Astrophysics, to start in Fall 2027. The Fellow will have the opportunity to pursue an independent research program and benefit from the diverse and dynamic intellectual environments at both Northwestern University’s Center for Interdisciplinary Exploration and Research in Astronomy (learn more about CIERA’s programs and activities) and The University of Chicago (learn more about UChicago’s Astronomy & Astrophysics Department programs and activities). Candidates in all areas of Astronomy and Astrophysics are encouraged to apply.

Northwestern has institutional access to several mid- and large-scale optical/IR ground-based telescope facilities, including Keck, MMT, and Magellan, as well as the La Silla Schmidt Southern Survey (LS4). Postdoctoral researchers can apply for nights through CIERA’s internal time allocation process (see sites.northwestern.edu/cieraobserving for more information). CIERA members are also actively involved in the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), the Laser Interferometer Gravitational-Wave Observatory (LIGO), JWST, HST, Roman, the Subaru Prime Focus Spectrograph (PFS), and the MOTHRA telescope. Northwestern University is also a founding partner of the Giant Magellan Telescope. For current areas of research led by CIERA faculty, as well as research resources and facilities, see: https://ciera.northwestern.edu/research/. CIERA researchers have exclusive access to two high-performance computer clusters and additional HPC resources, including high-memory nodes, are available through Northwestern’s Quest cluster (see ciera.northwestern.edu/high-performance-computing for more information). A dedicated Computational Specialist is also on staff to assist CIERA researchers.

The University of Chicago provides institutional access to the Magellan telescopes at Las Campanas Observatory in Chile and proprietary access to high-performance computing resources. Members of the UChicago community are actively involved in the James Webb Space Telescope (JWST), the Hubble Space Telescope (HST), the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), the Sloan Digital Sky Survey (SDSS-V), the South Pole Observatory (SPT and BICEP), the Simons Observatory, the Laser Interferometer Gravitational-Wave Observatory (LIGO), the Interstellar Mapping and Acceleration Probe (IMAP), the Probe of Extreme Multi-Messenger Astrophysics (POEMMA), the X-Ray Imaging and Spectroscopy Mission (XRISM), and the Line Emission Mapper Mission (LEM), among many other projects. The University of Chicago is a founding partner of the Giant Magellan Telescope, and department members are involved in the Kavli Institute for Cosmological Physics, the Enrico Fermi Institute, Fermilab, and Argonne National Laboratory. For more details about current areas of research by UChicago faculty, as well as resources and facilities, see https://astrophysics.uchicago.edu/research/.

Fellowship appointments will be for a three-year term starting in September 2027. The annual stipend is $88,500, and the position comes with a competitive benefits package and a research budget of $18,500 per year. A $5,000 relocation budget will also be available. Successful candidates are expected to split their time, spending approximately half of their time at each institution. They will benefit from strong faculty mentoring at both institutions.

Please submit applications at the following link: https://academicjobsonline.org/ajo/fellowship/32622

Applications should include a Cover Letter (stating your interest in and relevant experience/skills for the position, and identifying a potential faculty mentor at both Northwestern and U Chicago), a Curriculum Vitae, a list of publications (with the most important 1 to 3 publications indicated with an asterisk), a three-page Statement of Research accomplishments and plans, and email contact information should be provided for at least three references who can independently write a letter of recommendation for the applicant.

All questions should be sent by email to Jennifer Smith at jmsmith(at)uchicago.edu.

Applications received by November 1, 2026 will receive full consideration, and letters of recommendation will be due November 8, 2026. Later applications will be considered until all positions are filled. Please state that you are applying for the Northwestern – U Chicago Brinson Postdoctoral Fellowship in Astrophysics in your cover letter. Applicants must complete their Ph.D. requirements prior to appointment.

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