The eRASS1 data release catalogs nearly 930,000 X-ray sources from the first six months of the eROSITA survey, increasing known sources by over 60% and resolving 20% of the 1-2 keV cosmic X-ray background.
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27 Pith papers cite this work, alongside 840 external citations. Polarity classification is still indexing.
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A triple-star channel with two common envelope evolution phases produces merging black hole binaries with positive average χ_eff and a tail of negative values.
DIXE proposes CSS-based survey strategies covering 72.5% of the sky with 26-68 ks exposures and shows via simulation that MCMC collimator demodulation yields 1° point-source localization and 3° extended-source resolution.
IXPE measures 7.9% polarization in 4U 1822-37 with energy dependence and eclipse variation consistent with scattering in an extended corona at high inclination.
Red quasars are intrinsically X-ray weak with low alpha_OX values, tracing a distinct evolutionary stage of suppressed black hole accretion relative to stellar mass growth.
DESI DR1 yields 314k high-mass and 9.6k dwarf AGN, extending the M_BH-M_star relation to log M_star ~7.8 and suggesting two evolutionary pathways for galaxies and black holes.
Fe Kα lines from accreting black holes are produced mostly outside 10 gravitational radii due to radial ionization gradients, allowing broad profiles without high spin.
VLBA multi-frequency imaging reveals a relativistic, well-collimated jet of ~745 pc in a z=3.4 super-Eddington radio-loud quasar, distinct from low-redshift analogues.
Mid-IR search of NEOWISE yields 10 TDEs above 3e43 erg/s with volumetric rate 1.2e-10 Mpc^-3 yr^-1, showing suppression at high luminosity explained by reduced TDE rate for larger black holes.
A 1D accretion model shows MAD formation for Pm ≳ 1, outer-disk IR emission missed by one-zone approximations, and Pm-dependent X-ray mechanisms that affect IBH detectability in dense clouds.
TNG50 simulation analysis finds early-forming halos show higher stellar mass, metallicity, lower CGM gas mass and sSFR at z=0, with mass-dependent CGM metallicity reversal and cold-gas kinematics differences.
Detection of an imaginary QPO in AT2019wey whose frequency drops from ~5 Hz to ~1 Hz with rising phase lags as the source transitions through HIMS and LHS, showing U-shaped phase-lag spectrum in HIMS.
HE 1237-2252 exhibits a changing-look event driven by intrinsic accretion-rate variations, revealing a two-component broad-line region consisting of virialized gas at ~27 light-days and disk emission at larger radii.
2MASX J0413-0050 transitioned from a narrow-line Seyfert 1 to a Seyfert 1.9 and back while remaining in a high accretion state, supporting classification as a changing-state AGN.
Spectra of the western eROSITA bubbles reveal two uniform components at 0.60 keV and 0.21 keV with sub-solar abundances, plus a geometrical model constraining horizontal size to ~6 kpc but leaving vertical extent uncertain.
eROSITA data from solar minimum enables isolation and removal of solar wind charge exchange foreground emission, yielding a less contaminated diffuse soft X-ray sky and demonstrating X-ray mapping of interstellar matter flow.
AGN feedback simulations predict X-ray surface brightness profiles that match eROSITA CGM observations out to 100 kpc.
This work sets new upper limits on decay lifetimes and couplings for axion-like particles, dark photons, scalars, and B-L or L_i-L_j vector bosons using 511 keV line, X-ray continuum, and cosmic-ray flux observations.
Higher Eddington ratio AGN exhibit increased [O III] outflow incidence and reduced obscuration, supporting radiative feedback as the regulator.
50 constrained simulations of Coma cluster analogues reproduce the observed radial X-ray surface brightness and Compton-y profiles within the scatter expected from environment and assembly history.
New X-ray flare detections from M dwarfs combined with literature data yield flare frequency constraints and an upper limit of 0.5-30 Myr on atmospheric loss times for habitable planets orbiting them.
A multi-wavelength census of eRASS1 counterparts using ZTF photometry yields 43 refined COB candidates and 4 promising XRBs from radio cross-matches.
HD 251108 is a binary with a 1.3 solar-mass K giant and 0.25 solar-mass M dwarf, featuring a migrating spot that explains 12-year photometric modulation and RV variations from both activity and orbit.
A single galaxy cluster lenses two quasars (one Type I at z=1.524, one dust-obscured Type II at z=1.939) into four images each, yielding a projected mass of ~3.3e14 solar masses within 500 kpc and time delays of hundreds to over 1000 days.
citing papers explorer
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The SRG/eROSITA all-sky survey: First X-ray catalogues and data release of the western Galactic hemisphere
The eRASS1 data release catalogs nearly 930,000 X-ray sources from the first six months of the eROSITA survey, increasing known sources by over 60% and resolving 20% of the 1-2 keV cosmic X-ray background.
-
Stellar black hole binaries from two common envelope evolution phases in triple stellar systems
A triple-star channel with two common envelope evolution phases produces merging black hole binaries with positive average χ_eff and a tail of negative values.
-
DIffuse X-ray Explorer (DIXE): Sky Survey Strategy and Collimator Response Demodulation
DIXE proposes CSS-based survey strategies covering 72.5% of the sky with 26-68 ks exposures and shows via simulation that MCMC collimator demodulation yields 1° point-source localization and 3° extended-source resolution.
-
The first IXPE view of the eclipsing ADC source 4U 1822-37
IXPE measures 7.9% polarization in 4U 1822-37 with energy dependence and eclipse variation consistent with scattering in an extended corona at high inclination.
-
SDSS-V: Revealing a weak accretion state in X-ray selected red quasars
Red quasars are intrinsically X-ray weak with low alpha_OX values, tracing a distinct evolutionary stage of suppressed black hole accretion relative to stellar mass growth.
-
A New Record Census of Dwarf AGN and a Bimodal $M_{\rm BH}$-$M_{\star}$ Scaling Relation with DESI DR1
DESI DR1 yields 314k high-mass and 9.6k dwarf AGN, extending the M_BH-M_star relation to log M_star ~7.8 and suggesting two evolutionary pathways for galaxies and black holes.
-
Simulation-Based Prediction of Black Hole Fe K$\alpha$ Line Profiles
Fe Kα lines from accreting black holes are produced mostly outside 10 gravitational radii due to radial ionization gradients, allowing broad profiles without high spin.
-
A VLBA-resolved Jet Associated with Super-Eddington Accretion in a Radio-loud Quasar at $z=3.4$
VLBA multi-frequency imaging reveals a relativistic, well-collimated jet of ~745 pc in a z=3.4 super-Eddington radio-loud quasar, distinct from low-redshift analogues.
-
A Suppressed Volumetric Rate of High-Luminosity Mid-Infrared Selected Tidal Disruption Events
Mid-IR search of NEOWISE yields 10 TDEs above 3e43 erg/s with volumetric rate 1.2e-10 Mpc^-3 yr^-1, showing suppression at high luminosity explained by reduced TDE rate for larger black holes.
-
Multi-wavelength Emission Modeling from Accretion Flows around Isolated Black Holes Including Magnetic Flux Transport
A 1D accretion model shows MAD formation for Pm ≳ 1, outer-disk IR emission missed by one-zone approximations, and Pm-dependent X-ray mechanisms that affect IBH detectability in dense clouds.
-
The dependence of Circumgalactic Medium properties on halo assembly histories in the IllustrisTNG simulations
TNG50 simulation analysis finds early-forming halos show higher stellar mass, metallicity, lower CGM gas mass and sSFR at z=0, with mass-dependent CGM metallicity reversal and cold-gas kinematics differences.
-
An atypical X-ray variability component in the black hole candidate AT2019wey
Detection of an imaginary QPO in AT2019wey whose frequency drops from ~5 Hz to ~1 Hz with rising phase lags as the source transitions through HIMS and LHS, showing U-shaped phase-lag spectrum in HIMS.
-
A Changing-Look Seyfert Discovered by eROSITA Reveals a Two-Component Broad-Line Region
HE 1237-2252 exhibits a changing-look event driven by intrinsic accretion-rate variations, revealing a two-component broad-line region consisting of virialized gas at ~27 light-days and disk emission at larger radii.
-
An X-ray and optical spectral study of the changing-look narrow-line Seyfert 1 2MASX J0413-0050
2MASX J0413-0050 transitioned from a narrow-line Seyfert 1 to a Seyfert 1.9 and back while remaining in a high accretion state, supporting classification as a changing-state AGN.
-
The SRG/eROSITA diffuse soft X-ray background II. spectra and morphology of the eROSITA bubbles in the western Galactic hemisphere
Spectra of the western eROSITA bubbles reveal two uniform components at 0.60 keV and 0.21 keV with sub-solar abundances, plus a geometrical model constraining horizontal size to ~6 kpc but leaving vertical extent uncertain.
-
Determination of the Solar System contribution to the soft X-ray sky
eROSITA data from solar minimum enables isolation and removal of solar wind charge exchange foreground emission, yielding a less contaminated diffuse soft X-ray sky and demonstrating X-ray mapping of interstellar matter flow.
-
A systematic study of AGN feedback in a disk galaxy using MACER II: predictions of X-ray surface brightness profiles and comparison with eROSITA observations
AGN feedback simulations predict X-ray surface brightness profiles that match eROSITA CGM observations out to 100 kpc.
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INTEGRAL, eROSITA and Voyager Constraints on Light Bosonic Dark Matter: ALPs, Dark Photons, Scalars, $B-L$ and $L_{i}-L_{j}$ Vectors
This work sets new upper limits on decay lifetimes and couplings for axion-like particles, dark photons, scalars, and B-L or L_i-L_j vector bosons using 511 keV line, X-ray continuum, and cosmic-ray flux observations.
-
AGN radiative feedback as the main regulator of [O III] outflow activity and obscuration in X-ray AGN
Higher Eddington ratio AGN exhibit increased [O III] outflow incidence and reduced obscuration, supporting radiative feedback as the regulator.
-
Learning the Universe: Constrained simulations of the Coma galaxy cluster -- I. Radial X-ray and Compton-y signatures
50 constrained simulations of Coma cluster analogues reproduce the observed radial X-ray surface brightness and Compton-y profiles within the scatter expected from environment and assembly history.
-
Mapping the Landscape of M Dwarf X-ray Flares: New Discoveries in Context
New X-ray flare detections from M dwarfs combined with literature data yield flare frequency constraints and an upper limit of 0.5-30 Myr on atmospheric loss times for habitable planets orbiting them.
-
Hunting for Compact Object Binaries from eRASS1 Optical Counterparts through ZTF Time-domain Photometry and Multi-wavelength Census
A multi-wavelength census of eRASS1 counterparts using ZTF photometry yields 43 refined COB candidates and 4 promising XRBs from radio cross-matches.
-
Nature of HD 251108: an RS CVn binary with a long-term evolving spot
HD 251108 is a binary with a 1.3 solar-mass K giant and 0.25 solar-mass M dwarf, featuring a migrating spot that explains 12-year photometric modulation and RV variations from both activity and orbit.
-
COOL-LAMPS IX: A Rare Duo of Quasars Each Lensed by a Single Massive Galaxy Cluster
A single galaxy cluster lenses two quasars (one Type I at z=1.524, one dust-obscured Type II at z=1.939) into four images each, yielding a projected mass of ~3.3e14 solar masses within 500 kpc and time delays of hundreds to over 1000 days.
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Reproducing morphological features in the supernova remnant G11.2-0.3 by simulating jittering jets
Hydrodynamic simulations of three pairs of jittering jets in a CCSN reproduce the ring-and-bar morphology of SNR G11.2-0.3.
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Evolution of AGN Across Cosmic Epochs with the SKAO
Simulated SKA-Mid surveys reach radio-AGN completeness at L_1.4GHz ~ 10^23 W Hz^-1 up to z~6.
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The SKA View of the Sunyaev-Zeldovich Effect from Massive Cosmic Halos
The SKA will enable high-resolution, high-sensitivity observations of the thermal SZ effect in massive halos, capturing both pressure substructures and large-scale ICM emission.