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2 results for “X-ray active galactic nuclei”
Investigating the interplay between the coronal properties and the hard X-ray variability of active galactic nuclei with NuSTAR
<p>These are the figures in the Appendices C and D of the A&A article "Investigating the interplay between the coronal properties and the hard X-ray variability of active galactic nuclei with NuSTAR" by R. Serafinelli et al (2024), already accepted for publications.</p> <p>Appendix C contains all the spectra and data-to-model ratios, while Appendix D contains all the X-ray light curves.</p>
The cosmic web of X-ray active galactic nuclei seen through the eROSITA Final Equatorial Depth Survey (eFEDS)
<p>Which galaxies in the general population turn into active galactic nuclei (AGN) is a keystone of galaxy formation and evolution.</p> <p>Thanks to SRG/eROSITA’s contiguous 140 square degrees pilot survey field, we constructed a large, complete, and unbiased soft<br> X-ray flux-limited AGN sample at low redshift 0.05 < z < 0.55. Two summary statistics, the clustering using spectra from SDSS-V<br> and galaxy-galaxy lensing with imaging from HSC, are measured and interpreted with halo occupation distribution and abundance<br> matching models. Both models successfully account for the observations. We obtain an exceptional complete view of the AGN 12<br> halo occupation distribution. The population of AGN is broadly distributed among halos with a mean mass of 3.9+2.0−2.4 × 10 M⊙ .<br> +0.08. This corresponds to a large-scale halo bias of b(z = 0.34) = 0.99−0.10 . The central occupation has a large transition parameter σlog10 (M) = 1.28 ± 0.2. The satellite occupation distribution is characterized by a shallow slope αsat = 0.73 ± 0.38. We find that AGNs in satellites are rare, with fsat < 20%. Most soft X-ray-selected AGNs are hosted by central galaxies in their dark matter halo. A weak correlation between soft X-ray luminosity and large-scale halo bias is confirmed (3.3σ). We discuss the implications of environmental-dependent AGN triggering. This study paves the way towards fully charting, in the coming decade, the co-evolution of X-ray AGN, their host galaxies, and dark matter haloes by combining eROSITA with SDSS-V, 4MOST, DESI, LSST, and Euclid.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.