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5,090 results for “Black Hole”
Accurate quasinormal modes of the analog black holes
<p>figures and data for article: </p> <p>Jerzy Matyjasek, Kristian Benda, and Maja Stafińska</p> <p>Phys. Rev. D <strong>110</strong>, 064083 (2024)</p> <div> <div> <div> <p><strong>JM was partially supported by Grant No. 2022/45/B/ST2/00013 of the National Science Center, Poland.</strong></p> </div> </div> </div>
Movies for Figure 4 in "She's Got Her Mother's Hair: End-to-End Collapsar Simulations Unveil the Origin of Black Holes' Magnetic Field, (#AAS56924)"
<p>There are 10 videos: Six 2D vertical maps of the logarithmic mass density and four 3D renderings of the disk density (red) and jet magnetization (blue). In the 2D maps, the black contours outline the magnetic field lines, where solid and dashed lines delineate positive and negative magnetic polarity, respectively.</p> <p>The filenames correspond to the model names in the paper:</p> <p>Model a9ΦhD includes a rapidly spinning black hole with a high magnetic flux reservoir and large angular momentum to form a disk.</p> <p>Model a9ΦhI includes a rapidly spinning black hole with a high magnetic flux reservoir and small angular momentum that does not form a disk.</p> <p>Model a1ΦhD includes a slowly spinning black hole with a high magnetic flux reservoir and large angular momentum to form a disk.</p> <p>Model a9ΦlD includes a rapidly spinning black hole with a low magnetic flux reservoir and large angular momentum to form a disk.</p> <p>Model a5ΦlD includes a moderately spinning black hole with a low magnetic flux reservoir and large angular momentum to form a disk.</p> <p>Model a1ΦlD includes a slowly spinning black hole with a low magnetic flux reservoir and large angular momentum to form a disk.</p> <p>BHs with higher spins and magnetic fluxes retain the remnant poloidal field of the PNS to maintain steady jet launching. When the BH spin and the initial flux on the BH are low, or an accretion disk is absent (model a9ΦhI), the BH cannot sustain a large-scale field. As a result, magnetic loops of opposite polarity are accreted onto the BH, causing the BH magnetic flux to reconnect and reduce the flux on the BH, resulting in the depletion of jets.</p>
From the Sachdev-Ye-Kitaev model to theories of strange metals and charged/rotating black holes
<p>International Conference on Bose-Einstein Condensation, Superconductivity, Superfluidity and Quantum Magnetism <br>S. N. Bose National Centre for Basic Sciences, Kolkata November 12-16, 2024</p>
The observed mass distribution of Galactic black hole LMXBs is biased against massive black holes
<p>Jupyter Notebook plus necessary data files to recreate the figures, the numbers reported, and a table in the publication.</p> <p>Also available at: <a href="http://arxiv.org/abs/2104.03596">http://arxiv.org/abs/2104.03596</a></p> <p> </p>
Intermediate-Mass & Supermassive Black Hole Feedback in Cosmological Hydrodynamical Simulations
<p>Intermediate-Mass Black Holes (IMBHs: with mass between 100 to 10^6 Msun) historically comprise of an elusive population in the Universe compared to the widely observed Stellar-Mass and Supermassive Black Holes. An increasing fraction of low-mass galaxies are observed to host IMBHs at their centers; some of which show signatures of activity in the form of low-luminosity AGN. In this context, a pertinent theory is that there are dormant IMBHs at the centers of Dwarf Galaxies, which we explore by performing small-volume Cosmological Hydrodynamical Simulations. The IMBHs are expected to be more prevalent in low-mass halos. We also perform medium-volume cosmological simulations to explore feedback from supermassive BHs. Our simulations employ a modified version of the SPH code GADGET-3, and include baryonic feedback models: radiative cooling, star formation, chemical enrichment, stellar evolution, supernova feedback, AGN accretion and AGN kinetic feedback. We investigate the growth of central IMBHs and SMBHs in galaxies employing the different volume simulations, as well as the resulting BH feedback. We quantify the impact of central massive BHs on their host galaxies; especially the effects on star formation and galaxy gas properties.</p>
General-Relativistic Hydrodynamics Simulation of a Neutron Star — Sub-Solar-Mass Black Hole Merger - Gravitational Waveform
<p>This dataset contains the gravitational waveform for NSbh simulation. See the README.txt file for details.</p> <p>Simulations: Swami Vivekanandji Chaurasia (Stockholm University);</p> <p>Postprocessing: Maximiliano Ujevic (Universidade Federal do ABC) and Adrian Abac (Max Planck Institute for Gravitational Physics);</p> <p>Data release packaging: Ivan Markin (University of Potsdam);</p> <p>Simulations for the project have been performed on the national supercomputer HPE Apollo Hawk at the High Performance Computing (HPC) Center Stuttgart (HLRS) under the grant number GWanalysis/44189, on the GCS Supercomputer SuperMUC NG at the Leibniz Supercomputing Centre (LRZ) [project pn29ba], and on the HPC systems Lise/Emmy of the North German Supercomputing Alliance (HLRN) [project bbp00049] for the final production runs. The particular simulation has been run on HLRN.</p>
Data release: Comparing gravitational waveform models for binary black hole mergers - a hypermodels approach
<p>We include two main directories, one with the power spectral densities (PSDs) estimated for the events, and one with the posteriors of our analysis for each event.</p> <p> </p> <p><strong>PSDs</strong></p> <p>For most of the events, the sampling rate required for our analysis was higher than the one employed in LVK catalog paper studies. We upload here the PSDs computed for our analysis, divided into two main directories: 2048 for the PSDs computed with sampling rate = 2048 Hz, and 4096 for the ones computed with sampling rate = 4096 Hz. Each directory contains specific directories corresponding to each event, with the PSD for each detector as a *.dat file.</p> <p> </p> <p><strong>Posteriors</strong></p> <p>The 'posteriors.tar.gz' directory contains the *.json files, one for each event, with the results of our analysis.</p> <p> </p>
Data from: Social attraction to a predatory black hole: A natural ecological trap for lobsters
Open the record for dataset details and reuse information.
Picture of black hole and new galaxy
<p>This picture was taken by nikon L840 at 8 p.m on 22/04/2020 from purba burdwan, westbengal, india</p>
Black hole - neutron star initial data sequences
<p>Black hole - neutron star initial data sequences, obtained as solutions to the constraint equations in the eXtended Conformal Thin-Sandwich formulation under the assumption of quasi-equilibrium. The data has been obtained using the v2 version of the publically available elliptic data solver FUKA. <br><br>Update as of 10th Feb 2025:</p> <p>Equations of state used to produce the QE sequences (and necessary for the reader executable) have been added. </p>
ATITPhysics 2022W - Black Hole Quantization and Hawking Radiation
<p>These lecture series are given in ATITPhysics 2022 Winter School.</p>
Black Hole on Carina Nebula
<p>The observation was made during the 2022 NASA Data Challenge. The black hole was observed on Carina Nebula and the radiation activity was processed.</p>
The Birth of a Relativistic Jet Following the Disruption of a Star by a Cosmological Black Hole
<p>Please see the README file in there</p>
Binary black-hole simulation SXS:BBH:0125
Simulation of a black-hole binary system evolved by the <a href="https://www.black-holes.org/code/SpEC.html">SpEC code</a>.
Binary black-hole simulation SXS:BBH:0140
Simulation of a black-hole binary system evolved by the <a href="https://www.black-holes.org/code/SpEC.html">SpEC code</a>.
Binary black-hole simulation SXS:BBH:0119
Simulation of a black-hole binary system evolved by the <a href="https://www.black-holes.org/code/SpEC.html">SpEC code</a>.
Binary black-hole simulation SXS:BBH:0085
Simulation of a black-hole binary system evolved by the <a href="https://www.black-holes.org/code/SpEC.html">SpEC code</a>.
Binary black-hole simulation SXS:BBH:0131
Simulation of a black-hole binary system evolved by the <a href="https://www.black-holes.org/code/SpEC.html">SpEC code</a>.
Binary black-hole simulation SXS:BBH:0106
Simulation of a black-hole binary system evolved by the <a href="https://www.black-holes.org/code/SpEC.html">SpEC code</a>.
Binary black-hole simulation SXS:BBH:0111
Simulation of a black-hole binary system evolved by the <a href="https://www.black-holes.org/code/SpEC.html">SpEC code</a>.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
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.