03246nam a22005655i 4500 978-3-031-72447-3 DE-He213 20251030113327.0 cr nn 008mamaa 241126s2024 sz | s |||| 0|eng d 9783031724473 978-3-031-72447-3 10.1007/978-3-031-72447-3 doi QB460-466 PHVB bicssc SCI005000 bisacsh PHVB thema Aldoroty, Lauren. author. (orcid)0000-0003-0183-451X https://orcid.org/0000-0003-0183-451X aut http://id.loc.gov/vocabulary/relators/aut 88013 Properties of the Color-Magnitude Diagrams of Type Ia Supernovae [electronic resource] / by Lauren Aldoroty. 1st ed. 2024. Cham : Springer Nature Switzerland : Imprint: Springer, 2024. XVIII, 86 p. 39 illus., 26 illus. in color. online resource. text txt rdacontent computer c rdamedia online resource cr rdacarrier text file PDF rda Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5061 1 Introduction -- 2 Data -- 3 Methods -- 4 Results and Discussion -- 5 Conclusions. 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. Astrophysics. 68037 Astronomy Observations. 67976 Gravitation. Optical spectroscopy. Astrophysics. 68037 Astronomy, Observations and Techniques. 67977 Classical and Quantum Gravity. 69409 Optical Spectroscopy. SpringerLink (Online service) Springer Nature eBook Printed edition: 9783031724466 Printed edition: 9783031724480 Printed edition: 9783031724497 Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5061 66370 https://doi.org/10.1007/978-3-031-72447-3 ZDB-2-PHA ZDB-2-SXP 65193 65193