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- Fermi National Accelerator LaboratoryUS535 papers
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103 papers · 1 filter
Supernova Siblings and their Parent Galaxies in the Zwicky Transient Facility Bright Transient Surve
M. L. Graham, C. Fremling, D. A. Perley +19
Supernova (SN) siblings -- two or more SNe in the same parent galaxy -- are useful tools for exploring progenitor stellar populations as well as properties of the host galaxies suc…
Molecular Gas Properties and CO-to-H2 Conversion Factors in the Central Kiloparsec of NGC 3351
Yu-Hsuan Teng, Karin M. Sandstrom, Jiayi Sun +16
The CO-to-H conversion factor ($α_\rm{CO}$) is critical to studying molecular gas and star formation in galaxies. The value of $α_\rm{CO}$ has been found to vary within and bet…
Anomalous Thermal Hall Effect in Chiral Phases of He-Aerogel
Priya Sharma, J. A. Sauls
We report theoretical results for heat transport by quasiparticle excitations in superfluid He infused into silica aerogel engineered with uniaxial anisotropy. For this system…
A Carbon/Oxygen-dominated Atmosphere Days After Explosion for the "Super-Chandrasekhar" Type Ia SN 2020esm
Georgios Dimitriadis, Ryan J. Foley, Nikki Arendse +18
Seeing pristine material from the donor star in a Type Ia supernova (SN Ia) explosion can reveal the nature of the binary system. In this paper, we present photometric and spectros…
A Dynamical Model for the Origin of Anisogamy
Joseph D. Johnson, Nathan L. White, Alain Kangabire +1
The vast majority of multi-cellular organisms are anisogamous, meaning that male and female sex cells differ in size. It remains an open question how this asymmetric state evolved,…
Revealing the Field Sub-subgiant Population Using a Catalog of Active Giant Stars and Gaia EDR3
Emily M. Leiner, Aaron M. Geller, Michael A. Gully-Santiago +2
Sub-subgiant stars (SSGs) fall below the subgiant branch and/or red of the giant branch in open and globular clusters, an area of the color-magnitude diagram (CMD) not populated by…