activity
20232026
most citedThe SRG/eROSITA all-sky survey: First X-ray catalogues and data release of the western Galactic hemisphere

371 citations · 536 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.HE2026

X-ray luminous late-type giants: an overlooked population contributing to the Galactic ridge iron line emission

Tong Bao, Gabriele Ponti, Xiao-jie Xu +8

The origin of the highly ionized iron emission (Fe XXV at ) characterizing the Galactic ridge X-ray emission (GRXE) remains a fundamental puzzle in high-energy a…

astro-ph.HE2026★ 2 cited

The average X-ray spectrum of the volume-complete M-, F-, G-, and K-type star sample within 10 pc of the Sun

Xueying Zheng, Gabriele Ponti, Nicola Locatelli +15

F, G, K and M type stars are the most abundant stellar population in the Milky Way and are expected to contribute to its diffuse X-ray emission. Yet their intrinsic average X-ray s…

astro-ph.GA2026

Low-mass stars dominate the hot (0.7 keV) Galactic X-ray emission

G. Ponti, M. C. H. Yeung, G. Stel +12

The circumgalactic medium (CGM) of the Milky Way is composed of a tenuous atmosphere filled with multi-phase plasma, including a warm-hot virialised component. Recent studies sugge…

astro-ph.HE2025★ 3 cited

The Advanced X-ray Imaging Satellite (AXIS) Community Science Book

Michael Koss, Nafisa Aftab, Steven W. Allen +395

The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…

astro-ph.SR2025

The X-ray luminosity function of stars observed with SRG/eROSITA

Nicola Locatelli, Gabriele Ponti, Enza Magaudda +1

Background diffuse X-ray emission is contributed in large part by the emission of point sources not individually resolved. While this is established since decades for the contribut…

astro-ph.CO2025★ 4 cited

Retrieving the hot circumgalactic medium physics from the X-ray radial profile from eROSITA with an IlustrisTNG-based forward model

Soumya Shreeram, Johan Comparat, Andrea Merloni +9

Recent eROSITA measurements of the radial profiles of the hot CGM in the Milky-Way stellar mass (MW-mass) regime provide us with a new benchmark to constrain the hot gas around MW-…

astro-ph.GA2024★ 19 cited

The hot circumgalactic medium in the eROSITA All-Sky Survey III. Star-forming and quiescent galaxies

Yi Zhang, Johan Comparat, Gabriele Ponti +17

The circumgalactic medium (CGM), as the gas repository for star formation, might contain the answer to the mysterious galaxy quenching and bimodal galaxy population origin. We meas…

astro-ph.GA2024★ 19 cited

The SRG/eROSITA diffuse soft X-ray background. I. The local hot bubble in the western Galactic hemisphere

Michael C. H. Yeung, Gabriele Ponti, Michael J. Freyberg +10

The SRG/eROSITA All-Sky Surveys (eRASSs) combine the advantages of complete sky coverage and the energy resolution provided by the charge couple device and offer the most holistic…

astro-ph.GA2024★ 17 cited

A magnetised Galactic halo from inner Galaxy outflows

He-Shou Zhang, Gabriele Ponti, Ettore Carretti +12

Magnetic halos of galaxies are crucial for understanding galaxy evolution, galactic-scale outflows, and feedback from star formation activity. Identifying the magnetised halo of th…

astro-ph.GA2024★ 7 cited

Morphological Evidence for the eROSITA Bubbles Being Giant and Distant Structures

Teng Liu, Andrea Merloni, Jeremy Sanders +13

There are two contradictory views of the eROSITA bubbles: either a 10 kpc-scale pair of giant bubbles blown by the Galactic center (GC), or a 100 pc-scale local structure coinciden…

astro-ph.GA2024★ 5 cited

Discovery of the Goat Horn complex: a deg diffuse X-ray source connected to radio loop XII

Nicola Locatelli, Gabriele Ponti, Andrea Merloni +7

A dozen of patches of polarized radio emission spanning tens of degrees in the form of coherent and stationary loops are observed at radio frequencies across the sky. Their origin…

astro-ph.HE2024★ 371 cited

The SRG/eROSITA all-sky survey: First X-ray catalogues and data release of the western Galactic hemisphere

A. Merloni, G. Lamer, T. Liu +142

The eROSITA telescope array aboard the Spektrum Roentgen Gamma (SRG) satellite began surveying the sky in December 2019, with the aim of producing all-sky X-ray source lists and sk…

astro-ph.GA2024★ 7 cited

eROSITA narrowband maps at the energies of soft X-ray emission lines

Xueying Zheng, Gabriele Ponti, Nicola Locatelli +10

[abridged] Hot plasma plays a crucial role in regulating the baryon cycle within the Milky Way, flowing from the energetic sources in the Galactic center and disc, to the corona an…

astro-ph.GA2024★ 33 cited

The hot circumgalactic medium in the eROSITA All-Sky Survey II. Scaling relations between X-ray luminosity and galaxies' mass

Yi Zhang, Johan Comparat, Gabriele Ponti +16

Understanding how the properties of galaxies relate to the properties of the hot circum-galactic medium (CGM) around them can constrain galaxy evolution models. We measured the X-r…

astro-ph.GA2024★ 49 cited

The hot circumgalactic medium in the eROSITA All-Sky Survey I. X-ray surface brightness profiles

Yi Zhang, Johan Comparat, Gabriele Ponti +17

The circumgalactic medium (CGM) provides the material needed for galaxy formation and influences galaxy evolution. The hot () CGM is poorly detected around galaxies with s…

astro-ph.GA2023

Broadband maps of eROSITA and their comparison with the ROSAT survey

Xueying Zheng, Gabriele Ponti, Michael Freyberg +13

By June of 2020, the extended ROentgen Survey with an Imaging Telescope Array (eROSITA) on board the Spectrum Roentgen Gamma observatory had completed its first of the planned eigh…