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SUMMARY:Davi C. Rodrigues (Espirito Santo University)
DTSTART:20201103T141500Z
DTEND:20201103T154500Z
DTSTAMP:20260423T024455Z
UID:UTPhysics/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/UTPhysics/6/
 ">Dark matter and gravity</a>\nby Davi C. Rodrigues (Espirito Santo Univer
 sity) as part of Theoretical physics seminar @ Tartu\n\nLecture held in Ph
 ysicum room A101\, University of Tartu\, Estonia.\n\nAbstract\nDark matter
  was introduced in the 30's as an additional kind of matter that could not
  be directly detected from any electromagnetic waves\, but whose presence 
 could be inferred from gravitational phenomena. What was in the beginning 
 a curious fact turned out to be the start of a solid\, although indirect\,
  evidence for an "invisible giant": it was far from an additional detail\,
  it was the main gravitational actor at the scales of galaxies and beyond\
 , while no one could "see" it. It is therefore tempting to dismiss this in
 visible giant as an illusion caused by using the wrong gravitational theor
 y. I will argue why this is even less likely.  In particular\, I will talk
  about a well known proposal called "modified newtonian dynamics" and why 
 it is relevant as a phenomenological relation\, not as a theory for gravit
 y.\n
LOCATION:https://researchseminars.org/talk/UTPhysics/6/
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