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SUMMARY:Flash talk: A Potential Black Hole Mimicker From Curvature-Matter 
 Coupled Theory of Gravity
DTSTART;VALUE=DATE-TIME:20261119T080400Z
DTEND;VALUE=DATE-TIME:20261119T080600Z
DTSTAMP;VALUE=DATE-TIME:20261026T222702Z
UID:indico-contribution-960@indico.narit.or.th
DESCRIPTION:Speakers: Debanjan Debnath (Indian Institute of Technology Kan
 pur)\nI wish to  give a   presentation\, in which I will talk about a clas
 s of horizonless\, regular ultra-compact objects which may arise in a theo
 ry of gravity where fluid variables may couple to the curvature scalar of 
 the spacetime. This kind of non-minimal interaction between fluid variable
 s and the Ricci scalar generates a vacuum-like equation of state in the in
 terior\, while the exterior remains exactly Schwarzschild. The interior an
 d exterior spacetimes are glued through a infinitesimally thin-shell at th
 e boundary of the spacetimes. The interior metric is regular everywhere an
 d the shell has given a stiff-matter equation of state\, and near-horizon 
 compactness can potentially mimic black-hole phenomenology without a event
  horizon. Unlike the Mazur-Mottola gravastar and its variants\, the presen
 t model predicts a typical ultra-compact mass-radius window\, with masses 
 in the range $1.4-2.1M_\\odot$ and radii in the range $5-7$ km. In additio
 n\, this framework also predicts a unique geometric-thermodynamic shell te
 mperature in the ultra-compact limit distinctly different from the Hawking
  temperature.\n\nhttps://indico.narit.or.th/event/234/contributions/960/
LOCATION:Pattaya\, Thailand D Varee Jomtien Beach Pattaya Hotel
URL:https://indico.narit.or.th/event/234/contributions/960/
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