Numerički račun savijanja putanja svjetlosti zbog gravitacije i nelinearne elektrodinamike

master's thesis

• Title (english): Numerical calculation of light deflection due to gravity and nonlinear electrodynamics
• Author: Ivica Kičić
• Mentor: Maro Cvitan (mentor)
• Committee member: Maro Cvitan (predsjednik povjerenstva)
• Committee member: Davor Horvatić (član povjerenstva)
• Committee member: Nikola Poljak (član povjerenstva)
• Committee member: Amon Ilakovac (član povjerenstva)
• Committee member: Mario Basletić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); Zagreb
• Defense date and country: 2016-07-19, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

Masivne zvijezde i crne rupe svojom gravitacijom utječu na putanje svjetlosti u njihovoj blizini. Trajektorija svjetlosti može se izračunati koristeći rezultate opće teorije relativnosti. U ovom radu koristimo metodu praćenja zraka svjetlosti (ray tracing) u zakrivljenom prostorvremenu oko neutronskih zvijezda i crnih rupa. Promatramo kako gravitacija utječe na sliku akrecijskih diskova. Uz to, promatramo dodatan efekt savijanja putanja svjetlosti u blizini izrazito jako magnetiziranih neutronskih zvijezda (~10^11 T na površini) zbog nelinearne elektrodinamike.

Abstract (english)

Massive stars and black hole deflect nearby light with their gravity. The light trajectory can be calculated using the results of the general theory of relativity. In this work we perform the ray tracing of light rays in curved spacetime around neutron stars and black holes. We analyze how gravity affects the images of accretion disks. Furthermore, we analyze the additional effect of deflection of light in the vicinity of strongly magnetized neutron stars (~10^11 T on the surface) due to nonlinear electrodynamics.

• Keywords: savijanje putanje svjetlosti; gravitacija; nelinearna elektrodinamika
• Keywords (english): light deflection; gravity; nonlinear electrodynamics
• Language: croatian
• URN:NBN: urn:nbn:hr:217:887680
• Study programme: Title: Physics; specializations in: Research; Course: Research; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra fizike (magistar/magistra fizike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2017-07-19
• Created on: 2017-03-03 22:23:06