activity
20222026
most citedLine Emission Mapper (LEM): Probing the physics of cosmic ecosystems

46 citations · 167 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.GA2026

What's Missing in AGN Feedback? Lessons learnt from Magneticum, IllustrisTNG and Simba

D. T. Mazengo, P. Popesso, I. Marini +20

Accurately balancing gas reservoirs, star formation, and feedback across cosmic time remains a central challenge for galaxy formation models in modern hydrodynamical simulations. W…

astro-ph.GA2026

The stellar-to-halo mass relation of central galaxies across three orders of halo mass

Victoria Toptun, Paola Popesso, Ilaria Marini +9

The stellar content of galaxies is tightly connected to the mass and growth of their host dark matter halos. Observational constraints on this relation remain limited, particularly…

astro-ph.CO2025★ 3 cited

Turbulence in Simulated Local Cluster Analogs: One-to-one comparisons between SLOW and XRISM/Hitomi

Frederick Groth, Milena Valentini, Benjamin A. Seidel +4

The XRISM Resolve X-ray spectrometer allows to gain detailed insight into gas motions of the intra cluster medium (ICM) of galaxy clusters. Current simulation studies focus mainly…

astro-ph.GA2025★ 4 cited

The eROSITA view on the halo mass-temperature relation: From low-mass groups to massive clusters

V. Toptun, P. Popesso, I. Marini +15

Galaxy groups and clusters are among the best probes of structure formation and growth in a cosmological context. Most of their baryonic component is dominated by the intracluster…

astro-ph.CO2025★ 5 cited

Encyclopedia Magneticum: Scaling Relations from Cosmic Dawn to Present Day

Klaus Dolag, Rhea-Silvia Remus, Lucas M. Valenzuela +10

Galaxy and halo scaling relations, connecting a broad range of parameters, are well established from observations. The origin of many of these relations and their scatter is still…

astro-ph.GA2025★ 11 cited

The impact of assembly history on the X-ray detectability of halos. From galaxy groups to galaxy clusters

I. Marini, P. Popesso, K. Dolag +15

Galaxy groups represent a significant fraction of the halo population, playing a crucial role in galaxy formation and evolution. However, their detection in X-rays remains challeng…

astro-ph.GA2024★ 11 cited

The hot gas mass fraction in halos. From Milky Way-like groups to massive clusters

P. Popesso, A. Biviano, I. Marini +21

By using eROSITA data in the eFEDS area, we provide a measure of the hot gas fraction vs. halo mass relation over the largest halo mass range, from Milky Way-sized halos to massive…

astro-ph.GA2024★ 7 cited

The perils of stacking optically selected groups in eROSITA data. The Magneticum perspective

P. Popesso, I. Marini, K. Dolag +23

Hydrodynamical simulation predictions are often compared with observational data without fully accounting for systematics and biases specific to observational techniques. Using the…

astro-ph.GA2024★ 9 cited

Quantifying Observational Projection Effects with a Simulation-based hot CGM model

Soumya Shreeram, Johan Comparat, Andrea Merloni +11

The hot phase of the circumgalactic medium (CGM) allows us to probe the inflow and outflow of gas within a galaxy, which is responsible for dictating the evolution of the galaxy. S…

astro-ph.CO2024★ 20 cited

Detecting Galaxy Groups and AGNs populating the local Universe in the eROSITA era

I. Marini, P. Popesso, G. Lamer +14

The eROSITA will deliver an unprecedented volume of X-ray survey observations, 20-30 times more sensitive than ROSAT in the soft band (0.5-2 keV) and for the first time imaging in…

astro-ph.IM2023★ 2 cited

LEM All-Sky Survey: Soft X-ray Sky at Microcalorimeter Resolution

Ildar Khabibullin, Massimiliano Galeazzi, Akos Bogdan +23

The Line Emission Mapper (LEM) is an X-ray Probe with with spectral resolution ~2 eV FWHM from 0.2 to 2.5 keV and effective area >2,500 cm at 1 keV, covering a 33 arcmin diamet…

astro-ph.GA2023★ 19 cited

Resonant scattering of the OVII X-ray emission line in the circumgalactic medium of TNG50 galaxies

Dylan Nelson, Chris Byrohl, Anna Ogorzalek +15

We study the impact of resonantly scattered X-ray line emission on the observability of the hot circumgalactic medium (CGM) of galaxies. We apply a Monte Carlo radiative transfer p…

astro-ph.GA2023★ 9 cited

Circumgalactic Medium on the Largest Scales: Detecting X-ray Absorption Lines with Large-Area Microcalorimeters

Akos Bogdan, Ildar Khabibullin, Orsolya Kovacs +22

The circumgalactic medium (CGM) plays a crucial role in galaxy evolution as it fuels star formation, retains metals ejected from the galaxies, and hosts gas flows in and out of gal…

astro-ph.IM2022★ 46 cited

Line Emission Mapper (LEM): Probing the physics of cosmic ecosystems

Ralph Kraft, Maxim Markevitch, Caroline Kilbourne +107

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…

astro-ph.HE2022★ 21 cited

Decomposition of galactic X-ray emission with Phox: Contributions from hot gas and XRBs

Stephan Vladutescu-Zopp, Veronica Biffi, Klaus Dolag

We provide a numerical framework with which spatially and spectrally accurate representations of X-ray binary populations can be studied from hydrodynamical cosmological simulation…