3,118 research outputs found
POSSIS: predicting spectra, light curves, and polarization for multidimensional models of supernovae and kilonovae
No full textWe present POSSIS, a time-dependent three-dimensional Monte Carlo code for modelling radiation transport in supernovae and kilonovae. The code incorporates wavelength- and time-dependent opacities, and predicts viewing-angle dependent spectra, light curves, and polarization for both idealized and hydrodynamical explosion models. We apply the code to a kilonova model with two distinct ejecta components, one including lanthanide elements with relatively high opacities and the other devoid of lanthanides and characterized by lower opacities. We find that a model with total ejecta mass Mej = 0.04 M⊙ and half-opening angle of the lanthanide-rich component Φ = 30◦ provides a good match to GW 170817/AT 2017gfo for orientations near the polar axis (i.e. for a system viewed close to face-on). We then show how crucial is the use of self-consistent multidimensional models in place of combining one-dimensional models to infer important parameters, such as the ejecta masses. We finally explore the impact of Mej and Φ on the synthetic observables and highlight how the relatively fast computation times of POSSIS make it well-suited to perform parameter-space studies and extract key properties of supernovae and kilonovae. Spectra calculated with POSSIS in this and future studies will be made publicly available
Chaplain Thomas M Bulla Marker Emporia VA
No full textChaplain Thomas M. Bulla marker. Inscription reads:
Thomas McNeill Bulla was born in North Carolina on 4 Jan. 1881. Ordained a Presbyterian minister, he was called here to the First Presbyterian Church of Emporia in 1911. In April 1917, he became chaplain of the 116 Infantry Regiment, 29th Infantry Division, and in June 1918 sailed to France. There he joined the troops in the trenches, often venturing into no-man\u27s-land to rescue wounded soldiers. On 15 Oct. 1918, during the Battle of the Meuse, he was himself wounded. He died two days later, the only chaplain of a Virginia regiment to lose his life in the war.
Department of Historic Resources, 1999https://digitalcommons.unf.edu/historical_architecture_main/8126/thumbnail.jp
Fouilles de M. le Dr Carton à Bulla Regia
No full textHéron de Villefosse Antoine. Fouilles de M. le Dr Carton à Bulla Regia. In: Comptes rendus des séances de l'Académie des Inscriptions et Belles-Lettres, 58ᵉ année, N. 3, 1914. pp. 311-313
Nouvelles des fouilles de M. Carton à Bulla Regia
No full textHéron de Villefosse Antoine. Nouvelles des fouilles de M. Carton à Bulla Regia. In: Comptes rendus des séances de l'Académie des Inscriptions et Belles-Lettres, 61ᵉ année, N. 6, 1917. pp. 538-539
I cabrei dell’ordine ospitaliero: dalla documentazione alla ricerca di persistenze e trasformazioni del paesaggio rurale del versante meridionale dei Berici
No full textI cabrei figurati e descrittivi, individuati dalla ricerca d’archivio di M.G. Bulla Borga, offrono interessanti considerazioni, oltre che sulle trasformazioni del paesaggio rurale, anche sulla prassi di conservazione dei patrimoni religiosi e sulle professionalità dei mappatori
Numerical renormalization group for bosonic systems and application to the Subohmic Spin-Boson model
No full textNumerical renormalization group for bosonic systems and application to the Subohmic Spin-Boson model / R. Bulla, N. Tong, M. Vojta. – In: Physical review letters. 91. 2003. 17060
"Linearized´´ Dynamical Mean-Field Theory for the Mott-Hubbard transition
No full text"Linearized´´ Dynamical Mean-Field Theory for the Mott-Hubbard transition / R. Bulla and M. Potthoff. - In: European physical journal. B. 13. 2000. S. 257-26
Kondo effect of impurity moments in d-wave superconductors: quantum phase transition and spectral properties
No full textKondo effect of impurity moments in d-wave superconductors: quantum phase transition and spectral properties / M. Vojta, R. Bulla. – In: Physical review. B. 65. 2001. 01451
Exhaustion physics in heavy fermion systems
No full textExhaustion physics in heavy fermion systems : a T=0 NRG study / Th. Pruschke, R. Bulla, and M. Jarrell. - In: Physica. B. 281/282. 2000. S. 47 ff
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