Following the transformational science enabled by the Event Horizon Telescope, we now focus on expanding the parameter space in terms of mass, spin and the role of magnetic field in extreme gravitational environment. It is thus imperative that imaging the silhouette of several black holes, beyond SgrA* and M87*, will provide vital constraints that will also probe the nature of (non-) General Relativity on a cosmological scale. I will present an overview of the fundamental physics that goes into this study from a multiwavelength perspective while also referring to an ongoing study with the EHT to image the photon rings and accretion flows of more AGNs in the nearby Universe. I will also show how the next generation EHT observations both from ground and space can be fundamental in this endeavour.
Bio:
Postdoctoral Researcher Venkatessh Ramakrishnan works at both the Finnish Centre for Astronomy with ESO and Aalto University’s Metsähovi Radio Observatory.
Aalto University Researchers' bio: Researchers from Aalto University, University of Turku, and Finnish Centre for Astronomy with ESO participated in the project taking a photo of the black hole at the centre of our galaxy
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2024-09-16T16:00:002024-09-16T17:00:00Roadmap to a compendium of supermassive black hole imagesEvent Information:
Abstract:
Following the transformational science enabled by the Event Horizon Telescope, we now focus on expanding the parameter space in terms of mass, spin and the role of magnetic field in extreme gravitational environment. It is thus imperative that imaging the silhouette of several black holes, beyond SgrA* and M87*, will provide vital constraints that will also probe the nature of (non-) General Relativity on a cosmological scale. I will present an overview of the fundamental physics that goes into this study from a multiwavelength perspective while also referring to an ongoing study with the EHT to image the photon rings and accretion flows of more AGNs in the nearby Universe. I will also show how the next generation EHT observations both from ground and space can be fundamental in this endeavour.
Bio:
Postdoctoral Researcher Venkatessh Ramakrishnan works at both the Finnish Centre for Astronomy with ESO and Aalto University’s Metsähovi Radio Observatory.
Links:
View his LinkedIn profile page
Aalto University Researchers' bio: Researchers from Aalto University, University of Turku, and Finnish Centre for Astronomy with ESO participated in the project taking a photo of the black hole at the centre of our galaxy
University of Turku (Finland) publications page for Venkatessh Ramakrishnan
Article: University of Turku (Finland): Scientists reveal new images of a black hole - Proof of a persistent black hole shadow
Article: Recognition from the Senate of Chile and the University of Concepción for Dr. Ramakrishnan's work on black holes Event Location:
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