Results 121 to 130 of about 136,037 (243)

No Evidence for a Dip in the Binary Black Hole Mass Spectrum

The Astrophysical Journal
Stellar models indicate that the core compactness of a star, which is a common proxy for its explodability in a supernova, does not increase monotonically with the star’s mass.
Christian Adamcewicz, Paul D. Lasky, Eric Thrane, Ilya Mandel   +3 more
doaj   +1 more source

Solar Flare Activity, 1937–2024: Introducing the New Hemispheric Solar Flare Index (hSFI) in the Context of 2024's Major Solar Storm Events

Space Weather, Volume 23, Issue 11, November 2025.
Abstract A new daily composite of the solar flare index (SFI) and the hemispherically‐resolved versions (hSFI) are presented for 1937 to 2024. The data set confirms that the northern hemisphere (NH) dominated solar flare activity during Solar Cycles 17 to 21, but that the southern hemisphere has dominated from Solar Cycle 22 to present.
V. M. Velasco Herrera, W. Soon, S. Knoška, A. Özgüç, G. Velasco Herrera, H. Yeşilyaprak, N. Babynets, M. Švanda, J. Muraközy, S. Qiu, D. Riveros‐Rosas, R. Connolly, M. Connolly, A. Tlatov, L. Cappellotto   +14 more
wiley   +1 more source

Do Both Black Holes Spin in Merging Binaries? Evidence from GWTC-4 and Astrophysical Implications

The Astrophysical Journal
Angular momentum transport in high-mass stars is commonly modeled by extrapolating the behavior of better-observed low-mass stars. According to the conventional picture, the cores of most black hole progenitors lose almost all of their angular momentum ...
Christian Adamcewicz, Nir Guttman, Paul D. Lasky, Eric Thrane   +3 more
doaj   +1 more source

Analysis of the effect of coupling coefficients on the slope of PDH-locked frequency discriminator

AIP Advances
The effects of the coupling coefficients on the reflected field and the error signal under various misalignments and near-axis conditions are analyzed, and some basic features of the error signal are investigated.
Qicheng Sun, Hongwen Hai, Ruqian Peng, Sijun Fang, Rui Zhang, Bohong Li, Jian Luo, Yehao Cao, Xinyu Li, Yong Yan   +9 more
doaj   +1 more source

Data Transmission Analysis and Communication Scheme Design for TianQin Mission

IEEE Access
Compared with ground-based gravitational wave detection, space-based gravitational wave detection has become a research hotspot because of its abundant wave sources.
Zhaoxiang Yi, Lin Sun, Meng Jiang
doaj   +1 more source

Exploring the Parameter Space of Compact Binary Population Synthesis

, 2016
As we enter the era of gravitational wave astronomy, we are beginning to collect observations which will enable us to explore aspects of astrophysics of massive stellar binaries which were previously beyond reach.
Barrett, Jim W., Mandel, Ilya, Neijssel, Coenraad J., Stevenson, Simon, Vigna-Gomez, Alejandro   +4 more
core   +1 more source

Enhancing gravitational wave astronomy with galaxy catalogues

, 2014
Joint gravitational wave (GW) and electromagnetic (EM) observations, as a key research direction in multi-messenger astronomy, will provide deep insight into the astrophysics of a vast range of astronomical phenomena.
B. Abbott, B. Paczynski, B.F. Schutz, C. Hanna, C. Messenger, C.L. Fryer, D. Eichler, D.B. Fox, D.J. White, G.M. Harry, J. Aasi, J. Aasi, J. Abadie, J. Abadie, J. Abadie, J. Abadie, J. Kanner, J. Kanner, J. Veitch, K. Belczynski, K.G. Arun, L. Wen, L. Wen, L.K. Nuttall, P.A. Evans, R. O’Shaughnessy, S. Fairhurst, S. Nissanke, S.E. Woosley, T. Sidery, W. Fong, X. Fan, X.L. Fan   +32 more
core   +1 more source

Inferring Jet Physics from Neutron Star–Black Hole Mergers with Gravitational Waves

The Astrophysical Journal
Neutron star–black hole (NSBH) mergers that undergo tidal disruption may launch jets that could power a gamma-ray burst (GRB). We use a population of simulated NSBH systems to measure jet parameters from the gravitational waves emitted by these systems ...
Teagan A. Clarke, Paul D. Lasky, Eric Thrane   +2 more
doaj   +1 more source

Gravitational wave astronomy of single sources with a pulsar timing array [PDF]

, 2011
Kejia Lee, Norbert Wex, M. Krämer, B. W. Stappers, C. Bassa, G. H. Janssen, R. Karuppusamy, R. Smits   +7 more
openalex   +1 more source

Improved source localization with LIGO India

, 2012
A global network of advanced gravitational wave interferometric detectors is under construction. These detectors will offer an order of magnitude improvement in sensitivity over the initial detectors and will usher in the era of gravitational wave ...
, Abadie J, Advanced Virgo, Fairhurst S, Fairhurst S, Giant Metrewave Radio Telescope, Harry G M, Iyer B, Iyer B, KAGRA, Klimenko S, LOFAR, Ott C D, Pan-STARRS, Rau A, S Fairhurst, Sathyaprakash B, Schutz B F, Sky Mapper, Van der Sluys M   +19 more
core   +1 more source