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Study of Luminosity Color Evolution In Type Ia Supernovae
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The current models used to determine the distance modulus of Type Ia Su-pernovae indicate an accelerating universe which is best explained by a quantitycalled the 'Dark Energy'. Color of the supernova is one of the important phys-ical quantity used in the measurement of distance modulus. The variation incolor could be as a result of both extrinsic (dust in the host galaxy) and in-trinsic (mass, composition of progenitor) properties. The observations made bySupernova Legacy Survey conclude that there are lesser number of red super-novae with increasing redshift. This bias motivates one to study whether it isjust a result of selection eects or a possible Luminosity - Color evolution withredshift. The presence of Luminosity - Color evolution can also be the reasonwhy one observes signicant change in distance modulus calculated using currenttheory. In this study dierent evolution models are assumed and the likelihoodor the signicance of the assumed models is studied.

Place, publisher, year, edition, pages
Keyword [en]
Physics Chemistry Maths, cosmology, supernovae type ia, hubble's constant, luminosity-color evolution
Keyword [sv]
Fysik, Kemi, Matematik
URN: urn:nbn:se:ltu:diva-57943Local ID: e8e1b952-e5ac-4721-b6a2-a85342f76280OAI: diva2:1031331
Subject / course
Student thesis, at least 30 credits
Educational program
Space Engineering, master's level
Validerat; 20111012 (anonymous)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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Singaravelu, Balasubramanian

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