معرفی
Associate Professor Sarah Martell is an observational astronomer at the School of Physics, University of New South Wales (UNSW), specializing in galactic archaeology and stellar populations. Her research focuses on understanding the history of the Milky Way through detailed studies of stellar ages, orbits, and chemical compositions.
Education:
- PhD in Astronomy & Astrophysics, University of California Santa Cruz, USA (2008)
- BS in Astronomy, University of Washington, USA (2001)
- BS in Physics, University of Washington, USA (2001)
Dr. Martell designs and conducts large survey projects to determine stellar ages, orbits, and chemical compositions for hundreds of thousands of stars. Her work helps identify stars captured from other galaxies and studies how stellar compositions change over time. She is a key contributor to major astronomical surveys like GALAH (Galactic Archaeology with HERMES) and Gaia-ESO, which aim to unravel the chemical and dynamical history of our galaxy through chemical tagging techniques that link stars with common origins.
Her recent publications demonstrate a strong focus on galactic archaeology, with emphasis on elemental abundances in stellar clusters, lithium-rich red giants, and chemical patterns in stellar streams. Through projects like GALAH, she examines the complex chemical histories of stellar systems across the Milky Way, revealing insights into galactic formation processes.
Dr. Martell serves as a key contributor to major astronomical collaborations including GALAH (Galactic Archaeology with HERMES), Gaia-ESO, and S5 (Southern Stellar Stream Spectroscopic Survey). Her research has been supported by significant grants from Australian and international funding agencies focused on advancing our understanding of galactic evolution through large-scale spectroscopic surveys.
