Results 81 to 90 of about 4,909 (237)

Multidisciplinary Investigation of Healy Submarine Volcano (Kermadec Arc, New Zealand) Using AUV and Submersible Data: Structural Control on Magmatic and Hydrothermal Processes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract We present a comprehensive multidisciplinary investigation of the Healy submarine volcano in the southern Kermadec arc, northeast of New Zealand. We show the first results of sidescan‐sonar data collected at a submarine arc volcano by an Autonomous Underwater Vehicle (AUV).
A. Bagnasco, F. Caratori Tontini, C. E. J. de Ronde, S. L. Walker, L. Cocchi, A. Ghirotto, E. Armadillo   +6 more
wiley   +1 more source

Geodesic Geometry of Black Holes

, 2006
The study of geodesics is of intrinsic significance in the study of the geometry of space-time. In this thesis null, space-like and time-like geodesics are studied in the case of the space-times of Schwarzschild, Reissner-Nordstrouml;m and Kerr black ...
Slezakova, Gabriela
core  

COSMOLOGICAL EVOLUTION OF MASSIVE BLACK HOLES: EFFECTS OF EDDINGTON RATIO DISTRIBUTION AND QUASAR LIFETIME

, 2010
A power-law time-dependent light curve for active galactic nuclei (AGNs) is expected by the self-regulated black hole growth scenario, in which the feedback of AGNs expels gas and shut down accretion.
Cao, Xinwu, Xinwu Cao
core   +1 more source

Properties and Astrophysical Implications of the 150 M o˙Binary Black Hole Merger GW190521

, 2020
The gravitational-wave signal GW190521 is consistent with a binary black hole (BBH) merger source at redshift 0.8 with unusually high component masses, 85-14+21 M o˙ and 66-18+17 M o˙, compared to previously reported events, and shows mild evidence for ...
Bertolini, A., Arène, M., Biggs, E., Barneo, P., Abraham, S., Bae, S., Bell, A. S., Bacon, P., Acernese, F., Betzwieser, J., Bergamin, F., Ansoldi, S., Badaracco, F., Avendano, V., Altin, P. A., Bartos, I., Anderson, W. G., Ackley, K., Aguiar, O. D., Barsuglia, M., Ashton, G., Banagiri, S., Akcay, S., Anderson, S. B., Bankar, D., Berry, C. P.L., Baer, A. M., Ananyeva, A., Bals, A., Basti, A., Bhandare, R., Bergmann, G., Barone, F., Ain, A., Angelova, S. V., Arai, K., Bentley, J. D., Aubin, F., Abbott, T. D., Barsotti, L., Bidler, J., Bejger, M., Aronson, S. M., Bader, M. K.M., Astone, P., Benjamin, M. G., Bassiri, R., Barbieri, C., Ballmer, S. W., Aggarwal, N., Abbott, R., Bankar, R. S., Adams, C., Appert, S., Barkett, K., Asali, Y., Aiello, L., Barta, D., Anand, S., Barayoga, J. C., Ballardin, G., Baird, J., Bersanetti, D., Arnaud, N., Adya, V. B., Aufmuth, P., Adhikari, R. X., Bayley, J. C., Allocca, A., Agathos, M., Bhandari, A. V., Bazzan, M., Ajith, P., Ascenzi, S., Amato, A., Baldaccini, F., Aston, S. M., Barr, B., Arun, K. G., Allen, G., Bartlett, J., Affeldt, C., Belahcene, I., Areeda, J. S., Balsamo, A., Agatsuma, K., Antier, S., Beniwal, D., Aultoneal, K., Babak, S., Barish, B. C., Austin, C., Araya, M. C., Barker, D., Berger, B. K., Bernuzzi, S., Aich, A., Bécsy, B., Bawaj, M., Baltus, G.   +99 more
core   +2 more sources

Exploring the Spin Dependence on Mass Inclination and Distance for the Newly Discovered Black Hole X-Ray Binary Swift J151857.0–572147

The Astrophysical Journal
The black hole X-ray binary Swift J151857.0−572147 was discovered during its first outburst in 2024 March. We review the archive of NICER observations from this outburst, focusing on the soft states.
Yujia Song, James F. Steiner, Tong Zhao, Yuexin Zhang, Ningyue Fan, Ole König, Santiago Ubach Ramirez, Josephine Wong, Lijun Gou, Javier A. Garcia   +9 more
doaj   +1 more source

Nonlinear electrodynamics effects on the geometry, thermodynamics, and quantum dynamics of (2+1)-dimensional black holes

Nuclear Physics B
Black holes in (2+1) dimensions serve as valuable toy models for understanding key aspects of real astrophysical black holes, providing insights into quantum gravity and thermodynamic properties.
Erdem Sucu, İzzet Sakallı
doaj   +1 more source

Rift Development, Tectonic Forcings, and Magmatic Feedbacks at Santorini and Kolumbo Volcanoes Constrained by Scientific Drilling and Core‐Seismic Integration

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Volcanism in continental rifts, rifted volcanic arcs, and back‐arc basins is fundamentally coupled with crustal extension. However, the precise geometry and timing of the fault systems that facilitate magma transport and accommodate extension remain poorly constrained.
Jonas Preine, Christian Hübscher, Tim Druitt, Matthias Hartge, Abigail Metcalfe, Steffen Kutterolf, Katharina Pank, Jens Karstens, Paraskevi Nomikou, Masako Tominaga, Emilie Hooft, Beck Hufstetler, Kaisa Autumn, Gareth Crutchley, Maria B. Jover, Christian Berndt, Thomas A. Ronge, IODP Expedition 398 Scientists   +17 more
wiley   +1 more source

On black holes in string theory

, 2011
PhDThis thesis investigates black holes in string theory through string amplitudes and through gauge-gravity duality. The research presented in this thesis supports the claim that string theory is capable of a consistent quantum-mechanical description
Turton, David J, Turton, David J.
core  

Iterative and Steady Black Auroral Stripes and Their Possible Causality in Plasma‐Sheet Electron Distributions: Implications From Low‐Altitude Reimei Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Iterative black auroral stripes were identified in auroral images obtained by the low‐altitude microsatellite Reimei. These steady and narrow black stripes are a remarkable feature of diffuse auroras generated by energetic electrons precipitating at higher latitudes than pulsating auroras.
Masafumi Hirahara, Yusuke Ebihara, Mizuki Fukizawa, Takanori Nishiyama, Takeshi Sakanoi   +4 more
wiley   +1 more source

Novel Polarimetric Analysis of Near-horizon Flaring Episodes in M87* in Millimeter Wavelength

The Astrophysical Journal
Recent multiwavelength observations of M87* revealed a high-energy γ -ray flare without a millimeter counterpart. We present a theoretical study of potential millimeter flares in M87*, using general relativistic magnetohydrodynamical simulations with ...
Razieh Emami, Matthew Liska, Koushik Chatterjee, Geoffrey C. Bower, Wystan Benbow, Douglas Finkbeiner, Maciek Wielgus, Lars Hernquist, Randall Smith, Grant Tremblay, Angelo Ricarte, James F. Steiner, Avery E. Broderick, Saurabh, Jordy Davelaar, Josh Grindlay, Mark Vogelsberger, Chi-Kwan Chan   +17 more
doaj   +1 more source