4 papers
Extinction Distributions in Nearby Star-resolved Galaxies. II. M33
Yuxi Wang, Yi Ren, Jian Gao +2
Extinction maps are essential for tracing interstellar dust and enabling accurate stellar population studies in galaxies. Here, a high-resolution extinction distribution of nearby…
Variation of the 2175 Ã extinction feature in Andromeda galaxy
Bing Yan, Shu Wang, Jian Gao +2
Extinction curves contain key information on interstellar dust composition and size distribution, with the 2175 Ã bump being the most prominent feature. We analyze 20 sightlines to…
Spacetime perturbations and quasi-teleparallel gravity
Jian Gao, Yuxuan Kang, Mingzhe Li +1
Gravity is identical to curved spacetime. It is manifested by the curvature of a Riemannian spacetime in general relativity but by torsion or non-metricity in teleparallel gravity…
Extinction Distributions in Nearby Star-resolved Galaxies. I. M31
Yuxi Wang, Jian Gao, Yi Ren +1
An extinction distribution of the Andromeda Galaxy (M31) is constructed with member stars as tracers by fitting multiband photometric data from UKIRT/WFCAM, PS1, and Gaia DR3. The…