3.9k citations · 24.6k across the 209 of their papers we have counts for
15 papers · 1 filter
Micro-arcsecond structure of Sagittarius A* revealed by high-sensitivity 86 GHz VLBI observations
Christiaan D. Brinkerink, Cornelia Müller, Heino D. Falcke +21
The compact radio source Sagittarius~A (Sgr~A)in the Galactic Center is the primary supermassive black hole candidate. General relativistic magnetohydrodynamical (GRMHD) si…
Galactic Center Pulsars with the ngVLA
Geoffrey C. Bower, Shami Chatterjee, Jim Cordes +9
Pulsars in the Galactic Center (GC) are important probes of General Relativity, star formation, stellar dynamics, stellar evolution, and the interstellar medium. Despite years of s…
Parkes Pulsar Timing Array constraints on ultralight scalar-field dark matter
Nataliya K. Porayko, Xingjiang Zhu, Yuri Levin +27
It is widely accepted that dark matter contributes about a quarter of the critical mass-energy density in our Universe. The nature of dark matter is currently unknown, with the mas…
LOFAR discovery of a 23.5-second radio pulsar
C. M. Tan, C. G. Bassa, S. Cooper +16
We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR…
How to tell an accreting boson star from a black hole
Hector Olivares, Ziri Younsi, Christian M. Fromm +6
The capability of the Event Horizon Telescope (EHT) to image the nearest supermassive black hole candidates at horizon-scale resolutions offers a novel means to study gravity in it…
The Scattering and Intrinsic Structure of Sagittarius A* at Radio Wavelengths
Michael D. Johnson, Ramesh Narayan, Dimitrios Psaltis +12
Radio images of the Galactic Center supermassive black hole, Sagittarius A* (Sgr A*), are dominated by interstellar scattering. Previous studies of Sgr A* have adopted an anisotrop…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…
Testing the universality of free fall towards dark matter with radio pulsars
Lijing Shao, Norbert Wex, Michael Kramer
The violation of the weak equivalence principle (EP) in the gravitational field of the Earth, described by the Eötvös parameter , was recently constrained to the level $\…
The Current Ability to Test Theories of Gravity with Black Hole Shadows
Yosuke Mizuno, Ziri Younsi, Christian M. Fromm +6
Our Galactic Center, Sagittarius A* (Sgr A*), is believed to harbour a supermassive black hole (BH), as suggested by observations tracking individual orbiting stars. Upcoming sub-m…
RFI Flagging Implications for Short-Duration Transients
Y. Cendes, P. Prasad, A. Rowlinson +24
With their wide fields of view and often relatively long coverage of any position in the sky in imaging survey mode, modern radio telescopes provide a data stream that is naturally…
LOFT-e: Localisation Of Fast Transients with e-MERLIN
C. R. H. Walker, R. P. Breton, P. A. Harrison +8
The majority of fast radio bursts (FRBs) are poorly localised, hindering their potential scientific yield as galactic, intergalactic, and cosmological probes. LOFT-e, a digital bac…
Multifrequency behaviour of the anomalous events of PSR J0922+0638
G. Shaifullah, C. Tiburzi, S. Osłowski +10
PSR J0922+0638 (B0919+06) shows unexplained anomalous variations in the on-pulse phase, where the pulse appears to episodically move to an earlier longitude for a few tens of rotat…
Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar
C. J. Clark, H. J. Pletsch, J. Wu +18
Millisecond pulsars (MSPs) are old neutron stars that spin hundreds of times per second and appear to pulsate as their emission beams cross our line of sight. To date, radio pulsat…
MeerTime - the MeerKAT Key Science Program on Pulsar Timing
M. Bailes, E. Barr, N. D. R. Bhat +28
The MeerKAT telescope represents an outstanding opportunity for radio pulsar timing science with its unique combination of a large collecting area and aperture efficiency (effectiv…
Progenitors of gravitational wave mergers: Binary evolution with the stellar grid-based code ComBinE
Matthias U. Kruckow, Thomas M. Tauris, Norbert Langer +2
The first gravitational wave detections of mergers between black holes and neutron stars represent a remarkable new regime of high-energy transient astrophysics. The signals observ…