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Type of talk
Seminar
Speaker
Dr. Mukesh Vyas
Affiliation
Bar Ilan University Israel
Date and Time of Talk
Venue
auditorium
Abstract
In this discussion, I will present a novel attractive interaction - gas pressure driven screening forces which operates between bodies embedded in a gaseous medium. Unlike gravity, van der Waals, or Coulomb interactions, this force arises from anisotropic momentum flux when particles shadow each other in a gas with mean free path larger than their separation. The mechanism not only survives but strengthens with increasing gas temperature, making it particularly relevant in several relevant physical systems.

As a prime application, I will discuss how this interaction provides a missing pathway for pebble (cm sized bodies) growth into planetesimals (km sized bodies), potentially resolving a longstanding issue in planet formation theory. Beyond planet formation, I will briefly discuss other potential applications, particularly in high-energy astrophysics, where magnetic mirrors interact within tenuous plasmas, and in atmospheric sciences, where the screening forces could play a role in aerosol coagulation and cloud microphysics. I would invite ideas and potential implications from young students and fellows.

Email Speaker
mukeshkvys@gmail.com
About Speaker

Dr. Mukesh currently hold a position as a postdoctoral researcher at Bar Ilan University in Israel. He has been working in the research group of Prof Asaf Pe'er (along with late Prof. David Eichler). His primary focus lies in the study of relativistic environments, particularly the matter surrounding black holes a research area in theoretical High Energy Astrophysics.

Email Host
indra@aries.res.in
Host Name
Indranil
Host Phone (ext/mob)
712