19 citations
- International Center for Relativistic AstrophysicsIT15 papers
- Sapienza University of RomeIT10 papers
- National Centre for Radio AstrophysicsIN4 papers
- Osservatorio Astronomico di PadovaIT4 papers
- Tata Institute of Fundamental ResearchIN4 papers
- Aalto UniversityFI3 papers
- Instituto Federal de Educação, Ciência e Tecnologia do ParáBR3 papers
- Universidade Federal do ParáBR3 papers
- Astronomy and SpaceAU2 papers
- Commonwealth Scientific and Industrial Research OrganisationAU2 papers
- Technion – Israel Institute of TechnologyIL2 papers
- The University of Texas at AustinUS2 papers
18 papers
The cylindrical jet base of M87 within 100 of the central engine
Brian Punsly
A recent article on high-resolution 86 GHz observations with the Global Millimeter VLBI Array, the phased Atacama Large Millimeter/submillimeter Array, and the Greenland Telescope…
Parametrized black holes: Scattering investigation
Renan B. Magalhães, Luiz C. S. Leite, Luís C. B. Crispino
We study the scattering of light-like geodesics and massless scalar waves by a static Konoplya-Zhidenko black hole, considering the case that the parametrized black hole solution c…
The Details of Limb Brightening Reveal the Structure of the Base of the Jet in M\,87 for the First Time
Brian Punsly
It has become commonplace is astronomy to describe the transverse coarse structure of jets in loosely defined terms such as "sheath" and "spine" based on discussions of parsec scal…
Scattering properties of charged black holes in nonlinear and Maxwell's electrodynamics
Marco A. A. de Paula, Luiz C. S. Leite, Luís C. B. Crispino
We investigate the scattering properties of a massless scalar field in the background of a charged Ayón-Beato-García regular black hole solution. Using a numerical approach, we com…
The Energetics of the Central Engine in the Powerful Quasar, 3C298
Brian Punsly, Christian Groeneveld, Gary J. Hill +3
The compact steep spectrum radio source, 3C 298, (redshift of 1.44) has the largest 178 MHz luminosity in the 3CR (revised Third Cambridge Catalogue) catalog; its radio lobes are a…
Did the Event Horizon Telescope Detect the Base of the Sub-Milliarsecond Tubular Jet in M\,87?
Brian Punsly, Sina Chen
A high sensitivity, 7mm Very Long Baseline Array image of M\,87 was previously analyzed in order to estimate the bulk flow jet velocity between 0.4 and 0.65 mas from the point of o…