Post Doctoral Researcher for AGN Investigations with JWST

The Space Telescope Science Institute (STScI) invites applications for a postdoctoral researcher position to work with Dr. Travis C. Fischer, Dr. Darshan Kakkad, and Dr. Vincenzo Mainieri on JWST investigations of AGN feedback, shock physics, and the response of the interstellar medium in both nearby and distant galaxies. The successful applicant will contribute to a coordinated set of JWST observing programs focused on how AGN-driven outflows affect molecular gas, ionized gas, dust, and star formation. The position is centered on analysis of multiple JWST programs, together with exploitation of the JWST archive, including two Cycle 2 MIRI programs and a newly awarded Cycle 5 program. One Cycle 2 program targets warm molecular gas in AGN and star-forming galaxies at z~2.2, testing whether AGN hosts show systematically different warm gas content than matched non-AGN systems. A second Cycle 2 program uses

JWST/MIRI

to map PAH emission in four AGN at z~2 with known ionized outflows, with the goal of determining how feedback affects recent star formation at cosmic noon. The Cycle 5 program will use JWST NIRSpec and

MIRI IFU

spectroscopy of nearby

NGC 4258

to measure the molecular and ionized gas physics in three shock-dominated regions at parsec-scale resolution, with particular emphasis on distinguishing shock regimes and clarifying the nature of radio-emitting structures in radio-quiet AGN. The postdoctoral researcher will take a leading role in reducing and analyzing

JWST IFU

datasets, developing scientific interpretations across programs, and publishing results in collaboration with a broad international team. Areas of work may include emission-line analysis, molecular and ionized gas diagnostics, spatially resolved spectroscopy, AGN feedback, shock excitation, star formation diagnostics, and comparison of nearby and high-redshift systems. Depending on the interests of the successful applicant, there may also be opportunities to help develop new related projects and pursue independent research aligned with the broader scientific goals of the program. The successful applicant will benefit from a stimulating research environment rich in colloquia, journal clubs, symposia, and interactions with scientists working across HST, JWST, and Roman science. STScI also maintains strong ties with Mainieri of European Southern Observatory, Kakkad at University for Hertfordshire- UK, and nearby Johns Hopkins University. The position offers excellent benefits and a competitive salary commensurate with year of PhD. The nominal start date is Fall 2026, though some flexibility may be possible. Qualifications Applicants should hold a Ph.D. in Astronomy, Physics, or a related field by the start date of the appointment. Expertise in one or more of the following areas is desirable: JWST data reduction and analysis, especially MIRI and/or NIRSpec spectroscopy Integral field spectroscopy and spatially resolved studies of galaxies or AGN Molecular gas, ionized gas, or dust diagnostics in galaxies AGN feedback, galactic outflows, shock excitation, or star formation in galaxy nuclei Development of analysis tools for spectroscopic datasets The strongest candidates will demonstrate the ability to work both independently and collaboratively, communicate scientific results clearly, and bring complex observational programs to publication. More important than experience in every listed area is the willingness to take on new projects, learn new skills, and work to bring these projects to fruition.

Application Instructions Applicants should submit:

a cover letter, a curriculum vitae, a publication list, a research statement of approximately 3 pages describing relevant experience, current interests, and future research goals, and three letters of reference. Applications received by June 5, 2026 will receive full consideration . Please use this link to submit your application : https://stsci.slideroom.com/#/permalink/program/88831 Questions about the scientific aspects of the position may be directed to Dr. Travis C. Fischer at tfischer@stsci.edu Questions regarding the application process may be directed to careers@stsci.edu . Reference #:

HRC0015832

Equal Opportunity Employer This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.