Title: Unveiling Galaxy Properties and Evolution with Slitless Spectroscopy: From HST and JWST to Future Missions
Abstract: Slitless spectroscopy is an effective tool for systematically studying galaxies. Unlike slit-based spectroscopy, which targets pre-selected sources, slitless spectroscopy provides a complete spectroscopic sample across a wide field of view. This talk reviews recent advancements using HST and JWST, demonstrating how slitless spectroscopy, combined with multiwavelegth photometric data and SED-modeling techniques, efficiently collects unbiased galaxy samples over a wide range of redshift, enabling systematic studies of their physical properties, evolution, and environments. It also provides spatially resolved data for low-redshift galaxies, such as metallicity gradients, star formation, excitation states, and dust extinction. Although powerful, slitless spectroscopy requires specialized analysis techniques compared to standard imaging or spectroscopy. Future space telescopes like CSST, Euclid, and Roman, equipped with slitless spectroscopy capabilities, will further advance our understanding in these fields.
