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Postdoctoral Research Associate I, Steward Observatory

University of Arizona and Careers
Tucson, AZ Full Time
POSTED ON 3/17/2026
AVAILABLE BEFORE 5/17/2026
Posting Number
req23798

Department
Steward Observatory

Department Website Link
https://astro.arizona.edu

Location
Tucson Campus

Address
Tucson, AZ USA

Position Highlights

Please note, the number of openings for this position has been updated from one to two.

The University of Arizona (UA) Department of Astronomy and Steward Observatory (SO) are excited to invite applications for Postdoctoral Research Associates interested in advancing spectroscopic studies of exoplanet atmospheres.

As a Postdoctoral Research Associate, you will work in the research group of Prof. Daniel Apai and support an equitable scholarly environment in research, mentoring, and service. Your work will focus on the modeling and interpretation of transiting exoplanet and host star data from JWST, and the upcoming Pandora mission. The Eyes on the Stars JWST Archival program aims to study host stellar heterogeneity and correct for its impact on JWST observations of transiting exoplanets. The NASA Pandora SmallSat is lauching in the next months and will be the first space telescope dedicated to exoplanet transmission spectroscopy. Pandora will study stellar contamination of transit spectra in 20 select exoplanet systems.

UA/SO offers a world-class research environment in space science and astrophysics with strong interdisciplinary programs across the Departments of Astronomy, Physics, Optical Sciences, and Planetary Sciences. We provide direct access to various world-class observational and computational facilities for ground-based radio and optical observing.

Start dates range from December 1, 2025 to May 1, 2026.

Outstanding UA benefits include health, dental, vision, and life insurance; paid vacation, sick leave, and holidays; UA/ASU/NAU tuition reduction for the employee and qualified family members; access to UA recreation and cultural activities; and more!

The University of Arizona has been recognized for our innovative work-life programs.



Duties & Responsibilities
  • Reduce and analyze exoplanet transmission spectroscopy data from the James Webb Space Telescope project “Eyes on the Stars”; and the Pandora SmallSat.
  • Use or develop integrated, multi-component stellar photosphere/planetary atmosphere models to simulate observations of ensembles of transiting exoplanets and their host stars to interpret observations with the Hubble and James Webb Space Telescopes, and the NASA Pandora SmallSat.
  • Disseminate work through publications and presentations; contribute to public-engagement opportunities.
  • Collaborate with faculty and scholars in support of a welcoming academic environment (including organizing collaborative meetings, supervising/mentoring graduate and undergraduate students).
  • Additional duties as assigned.

Minimum Qualifications
  • Must have completed all the requirements for a PhD. in Astronomy, Physics, Astrophysics, or related science at the time of hire.

Preferred Qualifications
  • PhD in physics, astronomy, or astrophysics is preferred.
  • Research experience relevant to one or more of the following scientific areas: Exoplanet atmospheres, exoplanet demographics, stellar activity, time-resolved photometry/spectrophotometry, comparison of data and high-dimensionality models, stellar photospheres.

FLSA
Exempt

Full Time/Part Time
Full Time

Number of Hours Worked per Week
40

Job FTE
1.0

Work Calendar
Fiscal

Job Category
Research

Benefits Eligible
Yes - Full Benefits

Rate of Pay
NIH Salary Guidelines, Depends on Experience

Compensation Type
salary at 1.0 full-time equivalency (FTE)

Type of criminal background check required:
Name-based criminal background check (non-security sensitive)

Number of Vacancies
2

Target Hire Date
12/1/2025

Expected End Date

Contact Information for Candidates
Professor Daniel Apai | apai@arizona.edu

Open Date
8/28/2025

Open Until Filled
Yes

Documents Needed to Apply
Curriculum Vitae (CV), Cover Letter, and Three Additional Documents

Special Instructions to Applicant
Along with your CV and cover letter, please provide the three additional documents below:
    1. Research Statement (limit four (4) pages excluding bibliography and figures).
    2. List of Publications.
    3. Names and contact information of three references.

Notice of Availability of the Annual Security and Fire Safety Report
In compliance with the Jeanne Clery Disclosure of Campus Security Policy and Campus Crime Statistics Act (Clery Act), each year the University of Arizona releases an Annual Security Report (ASR) for each of the University’s campuses. These reports disclose information including Clery crime statistics for the previous three calendar years and policies, procedures, and programs the University uses to keep students and employees safe, including how to report crimes or other emergencies and resources for crime victims. As a campus with residential housing facilities, the Main Campus ASR also includes a combined Annual Fire Safety report with information on fire statistics and fire safety systems, policies, and procedures.
Paper copies of the Reports can be obtained by contacting the University Compliance Office at cleryact@arizona.edu.

Salary.com Estimation for Postdoctoral Research Associate I, Steward Observatory in Tucson, AZ
$68,823 to $88,073
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