activity
20092026
most citedThe eROSITA X-ray telescope on SRG

884 citations · 4.5k across the 91 of their papers we have counts for

collaborators

91 papers

astro-ph.CO2026

A census of Dark Energy Survey Year 3 redMaPPer galaxy clusters in a high exposure eROSITA All Sky Survey region

P. A. Giles, A. K. Romer, J. Pilling +64

We present the cross-match of galaxy clusters detected by redMaPPer using the first three years of Dark Energy Survey (DESY3RM) operations, and the first release of the eROSITA-All…

astro-ph.CO2026

The SRG/eROSITA All-Sky Survey: Early dark energy and Hubble constant from the cluster mass function

J. Strunk, E. Artis, E. Bulbul +23

The evolution of the mass function of massive galaxy clusters is a well-established probe of cosmology. Using the eROSITA X-ray instrument on board the Spectrum Roentgen Gamma (SRG…

astro-ph.HE2026

Thermal or Non-thermal? Diffuse emission in the infall region of stacked galaxy groups

E. Bulbul, X. Zhang, Z. Ding +16

The faint infall regions surrounding the virial radius of galaxy groups remain largely unexplored due to their low X-ray surface brightness. Using the large statistical power of SR…

astro-ph.HE2026

The SRG/eROSITA All-Sky Survey DR2: Cumulative X-ray catalogues from the first three surveys and multi-wavelength counterparts in the western Galactic hemisphere

M. E. Ramos-Ceja, G. Lamer, M. Salvato +111

The eROSITA telescope array on board the Spektrum-Roentgen-Gamma (SRG) mission began its all-sky survey program in December 2019, scanning the sky at an approximately six-month cad…

astro-ph.CO2026

Simulation-Based Inference for Cluster Cosmology with Set-Based Neural Network Architectures

S. Zelmer, E. Bulbul, K. Lehman +18

The unprecedented statistical power of galaxy cluster catalogs from the SRG (Spectrum Roentgen Gamma)/eROSITA All-Sky Survey provides a unique opportunity to place stringent constr…

astro-ph.CO2026

The three-dimensional shapes of the galaxy cluster intracluster medium in eRASS1

S. Kulkarni, J. S. Sanders, E. Bulbul +2

The three-dimensional shapes of clusters are important for understanding the astrophysics of the clusters and as a probe in cosmological studies. We estimate the most probable thre…

astro-ph.CO2026

The SRG/eROSITA all-sky survey: The morphologies of clusters of galaxies: II. The intrinsic distributions of morphological parameters

J. S. Sanders, Y. E. Bahar, E. Bulbul +11

X-ray selected surveys of clusters of galaxies have been reported to contain more regular cool core clusters compared to samples selected using the Sunyaev-Zel'dovich (SZ) effect.…

astro-ph.CO2025★ 1 cited

The eROSITA Final Equatorial-Depth Survey (eFEDS): X-ray stacking analysis of Subaru's optically selected clusters spanning low richness regime

N. T. Nguyen-Dang, N. Ota, N. Okabe +17

This is the second paper in a series exploring the X-ray properties of galaxy clusters optically selected by the Subaru Hyper Suprime-Cam (HSC) survey, using data from the SRG/eROS…

astro-ph.CO2025

The SRG/eROSITA all-sky survey: X-ray scaling relations of galaxy groups and clusters in the western Galactic hemisphere

M. E. Ramos-Ceja, L. Fiorino, E. Bulbul +19

The soft X-ray telescope on board the SRG mission, eROSITA, has produced the largest sample to date of galaxy groups and clusters detected via their intracluster and intragroup med…

astro-ph.CO2025★ 1 cited

The life of central radio galaxies in clusters: AGN-ICM studies of eRASS1 clusters in the ASKAP fields

Angie Veronica, Thomas H. Reiprich, Florian Pacaud +35

The mechanical feedback from the central AGNs can be crucial for balancing the radiative cooling of the intracluster medium at the cluster centre. We aim to understand the relation…

astro-ph.CO2025

The SRG/eROSITA All-Sky Survey -Band Follow-Up Observations for Selected High-Redshift Galaxy Cluster Candidates

N. Zimmermann, M. Kluge, S. Grandis +21

We select galaxy cluster candidates from the high-redshift (BEST_Z > 0.9) end of the first SRG/eROSITA All-Sky Survey (eRASS1) galaxy cluster catalogue, for which we obtain moderat…

astro-ph.CO2025★ 1 cited

The SRG/eROSITA All-Sky Survey. Detection of shock-heated gas beyond the halo boundary into the accretion region

X. Zhang, E. Bulbul, B. Diemer +16

The hot gas in the outskirts of galaxy cluster-sized halos, extending around and beyond the virial radius into nearby accretion regions, remains among one of the least explored bar…

astro-ph.HE2025★ 19 cited

SRG/eROSITA No. 5: Discovery of quasi-periodic eruptions every ~3.7 days from a galaxy at z>0.1

R. Arcodia, P. Baldini, A. Merloni +17

Quasi-periodic eruptions (QPEs) are repeating soft X-ray bursts from the nuclei of galaxies, tantalizingly proposed to be extreme mass ratio inspirals. Here, we report the discover…

astro-ph.CO2025★ 2 cited

XMM-Newton follow-up of a sample of apparent low surface brightness galaxy groups detected in the ROSAT All-Sky Survey

Claudia Spinelli, Angie Veronica, Florian Pacaud +4

Galaxy cluster cosmology relies on complete and pure samples spanning a large range of masses and redshifts. In Xu et al. (2018) and Xu et al. (2022), we discovered an apparently n…

astro-ph.HE2025★ 8 cited

The Average Soft X-ray Spectra of eROSITA Active Galactic Nuclei

Shi-Jiang Chen, Johannes Buchner, Teng Liu +16

Context. AGNs are strong X-ray emitters shaped by disk-corona interactions. The soft excess (0.5-2.0 keV) reveals key information about the "warm corona" bridging the disk and hot…

astro-ph.CO2025

The XXL Survey LIV. X-ray Luminosity Function and Luminosity-Mass Relation of Optically Selected Galaxy Groups

C. Wood, B. J. Maughan, J. P. Crossett +10

The overlap between the GAMA spectroscopic survey and the XXL X-ray survey was used to study the X-ray properties of optically-selected groups of galaxies. Forced X-ray aperture ph…

astro-ph.CO2025★ 10 cited

The SRG/eROSITA all-sky survey: The morphologies of clusters of galaxies I: A catalogue of morphological parameters

J. S. Sanders, Y. E. Bahar, E. Bulbul +10

The first SRG/eROSITA all-sky X-ray survey, eRASS1, resulted in a catalogue of over twelve thousand optically-confirmed galaxy groups and clusters in the western Galactic hemispher…

astro-ph.GA2025★ 4 cited

The First SRG/eROSITA All-Sky Survey. Characterization of clusters of galaxies misclassified in the eRASS1 point source catalog

F. Balzer, E. Bulbul, M. Kluge +20

The detection of the extended X-ray-emission of the intracluster medium by the first SRG/eROSITA All-Sky Survey (eRASS1), combined with optical and near-infrared follow-up, resulte…

astro-ph.CO2024★ 1 cited

Gas thermodynamics meets galaxy kinematics: Joint mass measurements for eROSITA galaxy clusters

Pengfei Li, Ang Liu, Matthias Kluge +13

The mass of galaxy clusters is a critical quantity for probing cluster cosmology and testing theories of gravity, but its measurement could be biased given assumptions are inevitab…

astro-ph.CO2024★ 17 cited

The SRG/eROSITA All-Sky Survey : Constraints on the structure growth from cluster number counts

E. Artis, E. Bulbul, S. Grandis +29

Beyond testing the current cosmological paradigm, cluster number counts can also be utilized to investigate the discrepancies currently affecting current cosmological measurements.…

astro-ph.CO2024★ 7 cited

Examining the local Universe isotropy with galaxy cluster velocity dispersion scaling relations

A. Pandya, K. Migkas, T. H. Reiprich +7

In standard cosmology, the late Universe is assumed to be statistically homogeneous and isotropic. However, a recent study based on galaxy clusters by Migkas et al. (2021, arXiv:21…

astro-ph.HE2024★ 12 cited

The SRG/eROSITA all-sky survey. X-ray emission from the warm-hot phase gas in long cosmic filaments

X. Zhang, E. Bulbul, N. Malavasi +24

The properties of the warm-hot intergalactic medium (WHIM) in cosmic filaments are among the least quantified units in modern astrophysics. The Spectrum Roentgen Gamma/eROSITA All…

astro-ph.CO2024★ 4 cited

The SRG/eROSITA All-Sky Survey: Exploring halo assembly bias with X-ray selected superclusters

A. Liu, E. Bulbul, T. Shin +15

We explore halo assembly bias on cluster scales using large samples of superclusters. Leveraging the largest-ever X-ray galaxy cluster and supercluster samples obtained from the fi…

astro-ph.GA2024★ 1 cited

The Galaxy Group Merger Origin of the Cloverleaf Odd Radio Circle System

E. Bulbul, X. Zhang, M. Kluge +14

Odd radio circles (ORCs) are a newly discovered class of extended faint radio sources of unknown origin. We report the first detection of diffuse X-ray gas at the location of a low…