A Deep Dive into Stellar Populations in M33’s Central Region: Near-Infrared Observations and Analysis

Alizadeh, Mina; Javadi, Atefeh; van Loon, Jacco Th.; Abedini, Yousefali; Abdollahi, Hedieh; Seifipour, Sarina

Abstract

Data collection was conducted using three cameras on the UK Infrared Telescope (UKIRT) from 2003 to 2007. Throughout three nights in August 2005, the UKIRT Fast-Track Imager (UFTI) made K-band observations. The J and H bands Wide Field Camera (WFCAM) data were gathered from 2005 to 2007. Furthermore, from 2003 to 2007, UIST data for the central region of M33 were collected in the K-band. Since luminosity is more closely correlated with birth mass in the latter stages of a star’s evolution, we concentrated on these stars. We will combine all the PSF photometry catalogs of the UIST, the UFTI, and the WFCAM to present a novel master catalog of the central square kiloparsec to re-identify the LPV populations. By having more data points for each point source, the probability of detecting more LPVs goes up; also, a period might be derived for some. In addition to that, the SFH will be estimated more accurately by having a larger sample of variable stars.

Citation

Alizadeh, M., Javadi, A., van Loon, J. T., Abedini, Y., Abdollahi, H., & Seifipour, S. (in press). A Deep Dive into Stellar Populations in M33’s Central Region: Near-Infrared Observations and Analysis. Communications of the Byurakan Astrophysical Observatory, 71(2), 389-393. https://doi.org/10.52526/25792776-24.71.2-389

• Journal Article Type: Article
• Acceptance Date: Dec 27, 2024
• Online Publication Date: Dec 27, 2024
• Deposit Date: Jan 13, 2025
• Publicly Available Date: Jan 13, 2025
• Journal: Communications of the Byurakan Astrophysical Observatory
• Electronic ISSN: 2579-2276
• Peer Reviewed: Peer Reviewed
• Volume: 71
• Issue: 2
• Pages: 389-393
• DOI: https://doi.org/10.52526/25792776-24.71.2-389
• Public URL: https://keele-repository.worktribe.com/output/1047060