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Physical Sciences and Mathematics Commons™
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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Host Galaxy Extinction Of Type Ia Supernovae : Co-Evolution Of Interstellar Medium Structure And The Extinction Law With Star Formation., Benne W. Holwerda
Host Galaxy Extinction Of Type Ia Supernovae : Co-Evolution Of Interstellar Medium Structure And The Extinction Law With Star Formation., Benne W. Holwerda
Faculty Scholarship
This paper presents a mechanism that may modify the extinction law for Type Ia supernovae (SNeIa) observed at higher redshift. Starting from the observations that (i) SNeIa occur predominantly in spiral galaxies, (ii) star formation ejects interstellar medium (ISM) out of the plane of spirals, (iii) star formation alters the extinction properties of the dust in the ISM, and (iv) there is substantially more star formation at higher redshift, I propose that spiral galaxies have a dustier halo in the past than they do now. The ejected material’s lower value of RV will lead to a lower average value (R¯ …
Quantum Condensates In Extreme Gravity: Implications For Cold Stars And Dark Matter [Post-Print], Mark P. Silverman
Quantum Condensates In Extreme Gravity: Implications For Cold Stars And Dark Matter [Post-Print], Mark P. Silverman
Faculty Scholarship
Stable end-point stars currently fall into two distinct classes — white dwarfs and neutron stars — differing enormously in central density and radial size. No stable cold dead stars are thought to span the intervening densities or have masses beyond ~2–3 solar masses. I show, however, that the general-relativistic condition of hydrostatic equilibrium augmented by the equation of state of a neutron condensate at 0 K generates stable sequences of cold stars that span the density gap and can have masses well beyond prevailing limits. The radial sizes and mass limit of each sequence are determined by the mass and …
The State Of Public Access To Federal Government Databases Detailed In Recommended New Book, Jennifer L. Behrens
The State Of Public Access To Federal Government Databases Detailed In Recommended New Book, Jennifer L. Behrens
Faculty Scholarship
No abstract provided.
Corn Futures: Consumer Politics, Health, And Climate Change, Jedediah Purdy, James Salzman
Corn Futures: Consumer Politics, Health, And Climate Change, Jedediah Purdy, James Salzman
Faculty Scholarship
The Mexicans have long been known as the Corn People, but that label perhaps provides a better fit for modern day Americans. The simple seeds of corn play a fundamental role unprecedented in the history of human agriculture. Corn now underpins two major sectors, arguably the two most important sectors, of our modern economy - food supply and energy supply. How we choose to consume this seed has far-ranging consequences for pressing issues as far apart as climate change and diabetes, energy policy and immigration, tropical deforestation and food riots.