P. Predehl
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View article: On the Origin of the X-Ray Emission Surrounding PSR B0656+14 in the eROSITA Cal-PV Data
On the Origin of the X-Ray Emission Surrounding PSR B0656+14 in the eROSITA Cal-PV Data Open
We present a cautionary assessment of the extended X-ray emission around PSR B0656+14 in eROSITA Cal-PV data in response to the work of S. Niu et al. The eROSITA point-spread function (PSF) model is known to underestimate emission in the w…
View article: The stellar corona-chromosphere connection. A comprehensive study of X-ray and Ca II IRT fluxes from eROSITA and Gaia
The stellar corona-chromosphere connection. A comprehensive study of X-ray and Ca II IRT fluxes from eROSITA and Gaia Open
Stellar activity can be observed at different wavelengths in a variety of different activity indicators. We investigated the correlation between coronal and chromospheric emissions by combining X-ray data from stars detected in the eROSITA…
View article: The stellar corona-chromosphere connection
The stellar corona-chromosphere connection Open
Stellar activity can be observed at different wavelengths in a variety of different activity indicators. We investigated the correlation between coronal and chromospheric emissions by combining X-ray data from stars detected in the eROSITA…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
Recent advancements in methods used in wide-area surveys have demonstrated the reliability of the number density of galaxy clusters as a viable tool for precision cosmology. Beyond testing the current cosmological paradigm, cluster number …
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey
The hot circumgalactic medium in the eROSITA All-Sky Survey Open
Aims The galaxy population shows a characteristic bimodal distribution based on the star formation activity and is sorted into star-forming or quiescent. These two subpopulations have a tendency to be located in different mass halos. The c…
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey III. Star-forming and quiescent galaxies
The hot circumgalactic medium in the eROSITA All-Sky Survey III. Star-forming and quiescent galaxies Open
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 measured the X-ray emission of the hot CGM around star-forming …
View article: The high energy X-ray probe (HEX-P): science overview
The high energy X-ray probe (HEX-P): science overview Open
To answer NASA’s call for a sensitive X-ray observatory in the 2030s, we present the High Energy X-ray Probe (HEX-P) mission concept. HEX-P is designed to provide the required capabilities to explore current scientific questions and make n…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
The evolution of the cluster mass function traces the growth of the linear density perturbations and can be utilized to constrain the parameters of cosmological and alternative gravity models. In this context, we present new constraints on…
View article: The SRG/eROSITA All-Sky Survey : Constraints on the structure growth from cluster number counts
The SRG/eROSITA All-Sky Survey : Constraints on the structure growth from cluster number counts Open
Beyond testing the current cosmological paradigm, cluster number counts can also be utilized to investigate the discrepancies currently affecting current cosmological measurements. In particular, cosmological studies based on cosmic shear …
View article: The SRG/eROSITA all-sky survey
The SRG/eROSITA all-sky survey Open
The evolution of the cluster mass function traces the growth of linear density perturbations, providing valuable insights into the growth of structures, the nature of dark matter, and the cosmological parameters governing the Universe. The…
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey
The hot circumgalactic medium in the eROSITA All-Sky Survey Open
Context. The circumgalactic medium (CGM) provides the material needed for galaxy formation and influences galaxy evolution. The hot ( T > 10 6 K ) CGM is poorly detected around galaxies with stellar masses ( M * ) lower than 3 × 10 11 M ⊙ …
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey
The hot circumgalactic medium in the eROSITA All-Sky Survey Open
Aims. 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 aim to measure the scaling relations between the X-ray luminosity of …
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
The first SRG/eROSITA All-Sky Survey (eRASS1) provides the largest intracluster medium-selected galaxy cluster and group catalog covering the western Galactic hemisphere. Compared to samples selected purely on X-ray extent, the sample puri…
View article: X-ray variability of the triplet star system LTT1445 and evaporation history of the planets around its A component
X-ray variability of the triplet star system LTT1445 and evaporation history of the planets around its A component Open
Context. The high-energy environments of host stars could prove deleterious for their planets. It is crucial to ascertain this contextual information to characterize the atmospheres of terrestrial exoplanets. Aims. We aim to fully characte…
View article: Morphological Evidence for the eROSITA Bubbles Being Giant and Distant Structures
Morphological Evidence for the eROSITA Bubbles Being Giant and Distant Structures Open
There are two contradictory views of the eROSITA bubbles: either a 10 4 pc scale pair of giant bubbles blown by the Galactic center (GC), or a 10 2 pc scale local structure coincidentally located in the direction of GC. A key element of th…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
Clusters of galaxies can be used as powerful probes to study astrophysical processes on large scales, test theories of the growth of structure, and constrain cosmological models. The driving science goal of the SRG/eROSITA All-Sky Survey i…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
Context. Number counts of galaxy clusters across redshift are a powerful cosmological probe if a precise and accurate reconstruction of the underlying mass distribution is performed – a challenge called mass calibration. With the advent of…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
Superclusters of galaxies mark the large-scale overdense regions in the Universe. Superclusters provide an ideal environment to study structure formation and to search for the emission of the intergalactic medium such as cosmic filaments a…
View article: The high energy X-ray probe (HEX-P): instrument and mission profile
The high energy X-ray probe (HEX-P): instrument and mission profile Open
The High Energy X-ray Probe (HEX-P) is a proposed NASA probe-class mission that combines the power of high angular resolution with a broad X-ray bandpass to provide the necessary leap in capabilities to address the important astrophysical …
View article: The SRG/eROSITA all-sky survey: Cosmology constraints from cluster\n abundances in the western Galactic hemisphere
The SRG/eROSITA all-sky survey: Cosmology constraints from cluster\n abundances in the western Galactic hemisphere Open
The cluster mass function traces the growth of linear density perturbations\nand provides valuable insights into the growth of structures, the nature of\ndark matter, and the cosmological parameters governing the Universe. The\nprimary sci…
View article: The SRG/eROSITA All-Sky Survey: The first catalog of galaxy clusters and groups in the Western Galactic Hemisphere
The SRG/eROSITA All-Sky Survey: The first catalog of galaxy clusters and groups in the Western Galactic Hemisphere Open
Clusters of galaxies can be used as powerful probes to study astrophysical processes on large scales, test theories of the growth of structure, and constrain cosmological models. The driving science goal of the SRG/eROSITA All-Sky Survey (…
View article: The SRG/eROSITA All-Sky Survey. Optical identification and properties of\n galaxy clusters and groups in the western galactic hemisphere
The SRG/eROSITA All-Sky Survey. Optical identification and properties of\n galaxy clusters and groups in the western galactic hemisphere Open
The first SRG/eROSITA All-Sky Survey (eRASS1) provides the largest\nintracluster medium-selected galaxy cluster and group catalog covering the\nwestern galactic hemisphere. Compared to samples selected purely on X-ray\nextent, the sample p…
View article: The SRG-eROSITA All-Sky Survey : Constraints on f(R) Gravity from Cluster Abundance
The SRG-eROSITA All-Sky Survey : Constraints on f(R) Gravity from Cluster Abundance Open
The evolution of the cluster mass function traces the growth of the linear density perturbations and can be utilized for constraining the parameters of cosmological and alternative gravity models. In this context, we present new constraint…
View article: The SRG/eROSITA All-Sky Survey: First catalog of superclusters in the western Galactic hemisphere
The SRG/eROSITA All-Sky Survey: First catalog of superclusters in the western Galactic hemisphere Open
Superclusters of galaxies mark the large-scale overdense regions in the Universe. Superclusters provide an ideal environment to study structure formation and to search for the emission of the intergalactic medium such as cosmic filaments a…
View article: The SRG/eROSITA all-sky survey
The SRG/eROSITA all-sky survey Open
Context . The first eROSITA all-sky survey (eRASS1) performed on board the Spectrum-Roentgen-Gamma mission (SRG) provides more than 900 000 X-ray sources in the 0.2–2.3 keV band located in the western hemisphere. Aims . We present identifi…
View article: The SRG/eROSITA all-sky survey
The SRG/eROSITA all-sky survey Open
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 sky maps of an unprecedented depth. Here we present catalogue…
View article: The SRG/eROSITA all-sky survey -- Identifying the coronal content with HamStar
The SRG/eROSITA all-sky survey -- Identifying the coronal content with HamStar Open
The first eROSITA all-sky survey (eRASS1) performed on board the Spectrum-Roentgen-Gamma mission (SRG) provides more than 900,000 X-ray sources in the 0.2 - 2.3 keV band located in the western hemisphere. We present identifications of the …
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey I. X-ray surface brightness profiles
The hot circumgalactic medium in the eROSITA All-Sky Survey I. X-ray surface brightness profiles Open
The circumgalactic medium (CGM) provides the material needed for galaxy formation and influences galaxy evolution. The hot ($T>10^6K$) CGM is poorly detected around galaxies with stellar masses ($M_*$) lower than $3\times10^{11}M_\odot$ du…
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey II. Scaling relations between X-ray luminosity and galaxies' mass
The hot circumgalactic medium in the eROSITA All-Sky Survey II. Scaling relations between X-ray luminosity and galaxies' mass Open
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-ray luminosity of the hot CGM based on the surface brightnes…
View article: The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond
The high energy X-ray probe (HEX-P): Resolving the nature of Sgr A* flares, compact object binaries and diffuse X-ray emission in the Galactic center and beyond Open
HEX-P is a probe-class mission concept that will combine high spatial resolution X-ray imaging ( FWHM) and broad spectral coverage (0.2–80 keV) with an effective area far superior to current facilities’ (including XMM-Newton and NuSTAR ).…