![]() ![]() Let’s have a look at a simulated image of an accreting black hole: The concept of the black hole shadow was known since 70′ but the idea to image it in the black hole in the center of our Milky Way was first presented in a paper by Falcke et al. The shadow is essentially an image of the event horizon, lensed by the strong gravitational field around the BH (which bends the path of light rays, acting as a lens and distorting the image) and superimposed over the background light. This shining material accreting onto the black hole crosses the event horizon, resulting in a dark area over a bright background: this is the so-called black hole “shadow”. This surrounding matter accreting onto the hole heats up through viscous dissipation and converts gravitational energy into radiation, radiating bright light at many frequencies, including radio waves that can be picked up by radio telescopes. Black holes tend to suck up surrounding matter in a process called ‘accretion’. Interestingly, BHs are completely ”black” only within the event horizon, from but outside the event horizon, light can escape. For these reasons, the event horizon has been defined as “the shell of points of no return”. The defining feature of a black hole (BH) is the event horizon, the boundary from within which a particle cannot escape.Īt the boundary of the event horizon, the gravitational pull becomes so large that nothing can escape, including light (that is why BHs are black!). Master students(not in alphabetical order).Colloquia and Events Colloquia and Events.Do It Yourself (DIY) Do It Yourself (DIY).Sukanth Kumar Karapakula Jaganath Rao - MSc.Netherlands-China Low-Frequency Explorer (NCLE).Launch Netherlands Chinese Low-Frequency Explorer.Large Latin American Millimeter Array (LLAMA).CORTO: COsmic-ray Real-Time Observation.Education and Outreach Education and Outreach.Africa Millimetre Telescope Africa Millimetre Telescope.Members of the EHT Collaboration in The Netherlands.Event Horizon Telescope Collaboration Event Horizon Telescope Collaboration.Imaging a black hole Imaging a black hole.Galaxy structure and evolution the Milky Way Galaxy.Astroparticle physics and gravitational waves Astroparticle physics and gravitational waves.a “living catalog of dormant black holes”. an “exploitation strategy document”, and B. For the community to devise black-hole detection and exploitation strategies, with two main corresponding deliverables: A.For the community to identify how the observed population of dormant black holes can constrain population synthesis models, and its broader implications (for example, on the formation of gravitational wave sources).For theorists to provide predictions regarding the prevalence of black holes in various environments, including the full frame of uncertainties. ![]() For observers to establish and communicate the challenges and biases of black-hole detection methods, both to each other and to theorists.Guided by these questions, the workshop has the following primary aims: What constraints will this new population of black holes place on massive stellar evolution theory?.What are the ideal follow-up strategies for candidates detected through large-scale surveys (e.g.What are the biases associated with each technique?.How can we detect the plethora of black holes (both binary and single)?.Under which conditions are black holes expected to be dormant?.What governs the mass spectrum of stellar-mass black holes?.Is the formation of black holes associated with a supernova explosion?.Motivated by this, our workshop aims to bring together expert observers and theorists to discuss major questions in the field: On the other hand, modern spectroscopic, photometric, and astrometric missions (VLT, OGLE, Gaia) continuously enable the detection of a growing population of dormant black holes in the Milky Way and the Magellanic Clouds. On the one hand, ever-increasing computational power allows theorists to compute increasingly realistic models of collapsing stars. The recent years have seen tremendous advances in the field. Stellar-mass Black holes provide a crucial component in our understanding of massive stars, gravitational-wave events, and stellar clusters. ![]()
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