Recent research highlights:

Ice absorption features at z~0.5 with JWST's MIRI/MRS ( Sajina et al. 2025 ).

This work is part of the JWST GO1 PID1762 program `Halfway to the Peak: A bridge program to map the coeval star formation and supermassive black hole growth'.

This closer look at galaxy and AGN ice features beyond the local Universe is also inspired by the discovery of water ice at z~2 with Spitzer IRS (Sajina et al. 2009)

Other highlights from the Halfway program include: spatially resolved kinematics with mid-IR lines and molecular gas diagnostics with the mid-IR H2 lines.

JWST MIRI imaging and source properties Sajkov, Sajina et al. 2024

JWST allows for far more sensitive and higher spatial resolution studies of the mid-IR sky. We have produced 5.6um counts from parallel imaging taken as part of the Halfway program. In addition, we are working on constructing physically-motivated models for the MIRI populations (Vidal, Sajina et al. in prep.).

I am also a member of the MINERVA collaboration, a Cycle 4 approved program that will provide extensive multi-filter MIRI imaging in several well studied extragalactic fields.

Using self-organizing maps (SOMs) for parameter estimation even in the case of missing data (La Torre, Sajina et al. 2024)

This work is broadly applicable to any large multi-wavelength survey. However, it is specifically designed with the HSC-Deep survey in mind where we added the IRAC coverage .