Star formation rate and stellar mass calibrations based on infrared photometry and their dependence on stellar population age and extinction

0574437 - ASÚ 2024 RIV FR eng J - Journal Article
Kouroumpatzakis, Konstantinos - Zezas, A. - Kyritsis, E. - Salim, S. - Svoboda, Jiří
Star formation rate and stellar mass calibrations based on infrared photometry and their dependence on stellar population age and extinction.
Astronomy & Astrophysics. Roč. 673, May (2023), č. článku A16. ISSN 0004-6361. E-ISSN 1432-0746
R&D Projects: GA ČR(CZ) GA22-22643S
Institutional support: RVO:67985815
Keywords : galaxies * star formation * stellar content
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 6.5, year: 2022
Method of publishing: Open access

This work explores the dependence of the IR emission of galaxies on their extinction, and the age of their SPs. It aims to provide accurate and precise IR-photometry SFR and M⋆ calibrations that account for SP age and extinction while providing quantification of their scatter. This work provides calibrations for the SFR using a combination of the WISE bands 1 and 3, or the JWST NIR-F200W and MIRI-F2100W. It also provides mass-to-light ratio calibrations based on the WISE band-1, the JWST NIR-F200W, and the optical u − r or g − r colors. These calibrations account for the biases attributed to the SP age, while they are given in the form of extinction-dependent and extinction-independent relations. The proposed calibrations show robust estimations while minimizing the scatter and biases throughout a wide range of SFRs and stellar masses. The SFR calibration offers better results, especially in dust-free or passive galaxies where the contributions of old SPs or biases from the lack of dust are significant. Similarly, the M⋆ calibration yields significantly better results for dusty and high-SFR galaxies where dust emission can otherwise bias the estimations.
Permanent Link: https://hdl.handle.net/11104/0346003