Properties of the Color-Magnitude Diagrams of Type Ia Supernovae
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Beschreibung
This thesis presents a novel analysis of a photometric observational feature of Type Ia Supernovae (SNe Ia), the most precise distance indicators available for cosmological studies. While SNe Ia are crucial for understanding modern cosmology, there are systematic uncertainties associated with them that prevent use to their full potential. It is therefore vital that sources of systematic error in SN Ia standardization are better understood. In this thesis, the author robustly connects the color-magnitude diagram to SN Ia spectra and their physics for the first time, and shows that for the SN sample in the dissertation, this feature is important to consider as a contributor to scatter in the Hubble residual. There is no prior work in the literature that examines this feature in such depth, and it is rare to be able to paint such a thorough picture in a SN Ia study rooted in a single photometric feature. This work opens up many avenues for future observational and theoretical studies.
This thesis presents a novel analysis of a photometric observational feature of Type Ia Supernovae (SNe Ia), the most precise distance indicators available for cosmological studies. While SNe Ia are crucial for understanding modern cosmology, there are systematic uncertainties associated with them that prevent use to their full potential. It is therefore vital that sources of systematic error in SN Ia standardization are better understood. In this thesis, the author robustly connects the color-magnitude diagram to SN Ia spectra and their physics for the first time, and shows that for the SN sample in the dissertation, this feature is important to consider as a contributor to scatter in the Hubble residual. There is no prior work in the literature that examines this feature in such depth, and it is rare to be able to paint such a thorough picture in a SN Ia study rooted in a single photometric feature. This work opens up many avenues for future observational and theoretical studies.
Nominated as an outstanding PhD thesis by Texas A&M University, USA Advances understanding of sources of systematic error in SN Ia standardization Uses color-magnitude diagram methods to quantify some aspects of SN Ia diversity
Autor*in
Lauren Aldoroty
Themen in »Properties of the Color-Magnitude Diagrams of Type Ia Supernovae«
type Ia supernovae color-magnitude diagram color-magnitude intercept calibration SN Ia diversity CMAGIC SNfactory spectrophotometric dataset synthetic photometry Nearby Supernova Factory Bump morphology