Stellar Populations Found in the Central kpc of Four Luminous Compact Blue Galaxies at Intermediate Redshift
C. Hoyos (1), R. Guzman (2), A. I. Diaz (1), D. C. Koo (3), M. A., Bershady (4). ((1) Universidad Autonoma de Madrid, (2) University of Florida,, (3) University of California, (4) University of Wisconsin.)

TL;DR
This study analyzes the stellar populations in the central regions of four luminous compact blue galaxies at intermediate redshift, revealing multiple stellar generations and suggesting possible evolutionary paths to local spheroidal galaxies.
Contribution
It provides detailed analysis of stellar populations in LCBGs at intermediate redshift using HST data, highlighting their star formation history and potential evolution.
Findings
Presence of multiple stellar populations including ionizing and underlying stars
Estimated stellar masses align with dynamical masses (2-10x10^9 M_sun)
Star formation episodes occurred 5-7 Gyr ago
Abstract
We investigate the star formation history of the central regions of four Luminous Compact Blue Galaxies (LCBGs). LCBGs are blue (B-V<0.6), compact (MU_B<21.5 mag arcsec^-2) galaxies with absolute magnitudes M_B brighter than -17.5. The LCBGs analyzed here are located at 0.436<z<0.525. They are among the most luminous (M_B < -20.5), blue (B-V < 0.4) and high surface brightness (MU_B < 19.0 mag arcsec^-2) of this population. The observational data used were obtained with the HST/STIS spectrograph, the HST/WF/PC-2 camera and the HST/NICMOS first camera. We find evidence for multiple stellar populations. One of them is identified as the ionizing population, and the other one corresponds to the underlying stellar generation. The estimated masses of the inferred populations are compatible with the dynamical masses, which are typically 2--10x 10^9 M_sun. Our models also indicate that the…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
