Microlensing of Lensed Supernovae

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dc.creatorDobler, Gregory
dc.creatorKeeton, Charles R.
dc.date2006-08-18
dc.date2006-09-04
dc.date.accessioned2026-07-07T10:39:48Z
dc.date.available2026-07-07T10:39:48Z
dc.descriptionGiven the number of recently discovered galaxy-galaxy lens systems, we anticipate that a gravitationally lensed supernova will be observed within the next few years. We explore the possibility that stars in the lens galaxy will produce observable microlensing fluctuations in lensed supernova light curves. For typical parameters, we predict that ~70% of lensed SNe will show microlensing fluctuations > 0.5 mag, while ~25% will have fluctuations > 1 mag. Thus microlensing of lensed supernova will be both ubiquitous and observable. Additionally, we show that microlensing fluctuations will complicate measurements of time delays from multiply imaged supernovae: time delays accurate to better than a few days will be difficult to obtain. We also consider prospects for extracting the lens galaxy's stellar mass fraction and mass function from microlensing fluctuations via a new statistical measure, the time-weighted light curve derivative.
dc.description13 pages, emulateapj format; accepted in ApJ; expanded discussion of time delay uncertainties
dc.identifierhttps://arxiv.org/abs/astro-ph/0608391
dc.identifierhttp://arxiv.org/abs/astro-ph/0608391
dc.identifierAstrophys.J.653:1391-1399,2006
dc.identifierdoi:10.1086/508769
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181159
dc.subjectAstrophysics
dc.titleMicrolensing of Lensed Supernovae
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