MDPI’s Post

Thrilled to share that my student, Owen Johnson, has published his debut paper detailing our innovative approach to SETI observations using two LOFAR stations. This novel method allows us to differentiate earth-based interference from potential signals that may indicate presence of technologically-advanced Extraterrestrial Intelligence. Our research garnered notable attention: https://lnkd.in/gX2RpStC Full Paper: https://lnkd.in/g6XjTDUD Furthermore, I'm also releasing the code developed for barycentric correction of high-spectral resolution data. This enables comparisons of signals across various observatories: https://lnkd.in/gyezfgwQ.

This is the first paper to successfully work out the Penrose mechanism using Einstein’s Theory of General and Special Relativity to extract energy from a Kerr (rotating) black hole in 4D spacetime: only after “standing on the shoulders of giants” and by the guidance of God. This classical paper explains how particle energy is released from the black hole’s ergosphere at the cores (or centers) of quasars and other active galactic nuclei (AGN) and, importantly, predicts what was eventually observed by the Event Horizon Telescope (EHT) in 2019, i.e., the electron-positron (e- e+) pairs escaping from the photon orbit, interacting with the intrinsic surrounding magnetic field, producing synchrotron radiation emitted in the radio regime of the electromagnetic spectrum. It had been inferred from past observations of e- e+ pairs emerging from the cores of AGN, like M87, but their origin had remained a mystery. This Physical Review D 1995 paper (from my 1991 dissertation) solved this mystery by considering a detailed calculation of γγ → e- e+ Penrose pair production at the photon orbit: the first ever to be done nor proposed. This solution was confirmed by the EHT observations. 😊

Papers are invited for a special topical issue of Advances in Space Research (ASR) entitled “Science and Applied Research with Small Satellites”. We welcome high quality and relevant manuscripts from the community involved in space science and applied research with small satellites. Examples of topics include, but are not limited, to the following: - Space studies in the Earth-Moon system, planets and small bodies in the solar system - Deep-Space Science and planetary exploration with miniaturized systems - Space weather, solar physics, astronomy in orbit - Space debris monitoring and mitigation using small satellites - Earth Observation, meteorology, climate and environmental monitoring - Constellations of small satellites - Instruments, payloads, data exploitation - Enabling technologies and capacity building While the deadline for submissions is 31 October 2023, papers will be published electronically as soon as they are accepted. Professor Carlos Granja ([email protected]) and Professor Loren C. Chang ([email protected]) are the Guest Editors for this special issue. Questions can be directed to Prof. Granja, Prof. Chang or to the Co-Editor for Special Issues, Dr. Peggy Ann Shea ([email protected]). Committee on Space Research - COSPAR #Advances_in_Space_Research https://lnkd.in/gFW4QXBE

My first read of 2024:

I'm excited to announce the completion of my first scientific paper: "Charged Particle Motion Near a Magnetized Black Hole: A Near-Horizon Approximation", co-authored by Prof. Valeri P. Frolov. We derive a flat-spacetime approximation for charged particle motion in the near-horizon environment of a magnetized black hole, and apply this effective simplification to a few basic cases. You can read the pre-print here: https://lnkd.in/gdc3jKka

📃Scientific paper: The most fundamental question of all times Abstract: In the last few decades, reading the literature, we realized that we Astronomers have a strong preference to undertake very ambitious projects, and search for answers to the most fundamental questions in the history of the entire Universe. After running multiple times into such cardinal quest, the curiosity became no more sustainable and we had to find out. To our greater surprise, in the last few decades we had been restlessly participating to this superhuman endevour. Therefore we hereby explore the roots and grounds of this fundamental search, through the past decades, centuries and millennia. ;Comment: April fools! Discover the rest of the scientific article on es/iode ➡️https://etcse.fr/LQY