English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Particles have tremendous potential as astronomical messengers, andconversely, studying the universe as a whole also teaches us about particlephysics. This thesis encompasses both of these research directions.  Many models predict a diffuse flux of high energy neutrinos from activegalactic nuclei and other astrophysical sources. The "Astrophysics Underground"portion of this thesis describes a search for this neutrino flux performed bylooking for very high energy upward-going muons using the Super-K detector.  In addition to using particles to do astronomy, we can also use the universeitself as a particle physics lab. The "Particle Physics in the Sky" portion ofthis thesis focuses on extracting cosmological information from galaxy surveys.  To overcome technical challenges faced by the latest galaxy surveys, weproduced a comprehensive upgrade to mangle, a software package that processesthe angular masks defining the survey area on the sky. We added dramaticallyfaster algorithms and new useful features that are necessary for managingcomplex masks of current and next-generation galaxy surveys.  With this software in hand, we utilized SDSS data to investigate the relationbetween galaxies and dark matter by studying relative bias, i.e., the relationbetween different types of galaxies. Separating galaxies by their luminositiesand colors reveals a complicated picture: red galaxies are clustered morestrongly than blue galaxies, with both the brightest and the faintest redgalaxies showing the strongest clustering. Furthermore, red and blue galaxiestend to occupy different regions of space. In order to make precisemeasurements from the next generation of galaxy surveys, it will be essentialto account for this complexity.

Particle Physics in the Sky and Astrophysics Underground: Connecting the Universe's Largest and Smallest Scales