The collective X-ray luminosity of HMXB as a SFR indicator
Stefano Mineo (MPA), Marat Gilfanov (MPA, IKI), Rashid Sunyaev, (MPA, IKI)
TL;DR
This study investigates the correlation between the collective X-ray luminosity of high-mass X-ray binaries and the star formation rate in galaxies, aiming to refine calibration and understand variability.
Contribution
It provides a more accurate calibration of the Lx-SFR relation using a uniform dataset from 38 galaxies and explores the sources of dispersion in this relation.
Findings
Refined Lx-SFR calibration for 38 galaxies
Analysis of dispersion sources in the relation
Enhanced understanding of X-ray luminosity as an SFR indicator
Abstract
We study the relation between the X-ray luminosity of compact sources and the SFR of the host galaxy. Our sample includes 38 galaxies for which a uniform set of X-ray, infra-red and ultraviolet data from Chandra, Spitzer and GALEX has been collected. Our primary goals are (i) to obtain a more accurate calibration of the Lx-SFR relation and (ii) to understand the origin of the dispersion in the Lx-SFR relation observed in previous studies. Preliminary results of this project are reported below.
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