Line Emission Mapper (LEM): Probing the physics of cosmic ecosystems
Ralph Kraft, Maxim Markevitch, Caroline Kilbourne, Joseph S. Adams,, Hiroki Akamatsu, Mohammadreza Ayromlou, Simon R. Bandler, Marco Barbera,, Douglas A. Bennett, Anil Bhardwaj, Veronica Biffi, Dennis Bodewits, Akos, Bogdan, Massimiliano Bonamente, Stefano Borgani, Graziella

TL;DR
LEM is an upcoming X-ray mission designed to map emission lines in cosmic ecosystems, enabling detailed studies of galaxy formation, feedback processes, and the intergalactic medium with high spectral and spatial resolution.
Contribution
It introduces a novel X-ray microcalorimeter array with high spectral resolution and wide field coverage, enhancing capabilities for studying galaxy formation and cosmic plasmas.
Findings
Enables detailed measurements of plasma temperatures, densities, and dynamics.
Provides transformative insights into galaxy feedback and baryonic flows.
Expands discovery space through all-sky surveys.
Abstract
The Line Emission Mapper (LEM) is an X-ray Probe for the 2030s that will answer the outstanding questions of the Universe's structure formation. It will also provide transformative new observing capabilities for every area of astrophysics, and to heliophysics and planetary physics as well. LEM's main goal is a comprehensive look at the physics of galaxy formation, including stellar and black-hole feedback and flows of baryonic matter into and out of galaxies. These processes are best studied in X-rays, and emission-line mapping is the pressing need in this area. LEM will use a large microcalorimeter array/IFU, covering a 30x30' field with 10" angular resolution, to map the soft X-ray line emission from objects that constitute galactic ecosystems. These include supernova remnants, star-forming regions, superbubbles, galactic outflows (such as the Fermi/eROSITA bubbles in the Milky Way…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsSuperconducting and THz Device Technology · Particle accelerators and beam dynamics · Astrophysics and Cosmic Phenomena
