Zobrazeno 1 - 10
of 15 826
pro vyhledávání: '"A. A. Woolf"'
Autor:
Cipriani, Alessio, Woolf, Jon
Highest weight categories are an abstraction of the representation theory of semisimple Lie algebras introduced by Cline, Parshall and Scott in the late 1980s. There are by now many characterisations of when an abelian category is highest weight, but
Externí odkaz:
http://arxiv.org/abs/2410.13728
Autor:
Dorsch, M., Jeffery, C. S., Monai, A. Philip, Tout, C. A., Snowdon, E. J., Monageng, I., Scott, L. J. A., Miszalski, B., Woolf, V. M.
Magnetic fields with strengths ranging from 300 to 500 kG have recently been discovered in a group of four extremely similar helium-enriched hot subdwarf (He-sdO) stars. Besides their strong magnetic fields, these He-sdO stars are characterised by co
Externí odkaz:
http://arxiv.org/abs/2410.02737
Autor:
Smith, Lucas D., Cannady, Nicholas, Caputo, Regina, Kierans, Carolyn, Kirschner, Nicholas, Liceaga-Indart, Iker, McEnery, Julie, Metzler, Zachary, Moiseev, A. A., Parker, Lucas, Perkins, Jeremy, Sasaki, Makoto, Schoenwald, Adam J., Shy, Daniel, Valverde, Janeth, Wasti, Sambid, Woolf, Richard, Bolotnikov, Aleksey, Caligiure, Thomas J., Crosier, A. Wilder, Fried, Jack, Ghosh, Priyarshini, Griffin, Sean, Grove, J. Eric, Hays, Elizabeth, Kong, Emily, Mitchell, John, Phlips, Bernard, Sleator, Clio, Thompson, D. J., Wulf, Eric, Zajczyk, Anna
Publikováno v:
Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130937Z (21 August 2024)
The ComPair balloon instrument is a prototype gamma-ray telescope that aims to further develop technology for observing the gamma-ray sky in the MeV regime. ComPair combines four detector subsystems to enable parallel Compton scattering and pair-prod
Externí odkaz:
http://arxiv.org/abs/2410.02557
A stratified space is a topological space equipped with a \emph{stratification}, which is a decomposition or partition of the topological space satisfying certain extra conditions. More recently, the notion of poset-stratified space, i.e., topologica
Externí odkaz:
http://arxiv.org/abs/2407.17690
Autor:
Metzler, Zachary, Cannady, Nicholas, Shy, Daniel, Caputo, Regina, Kierans, Carolyn, Woolf, Richard
ComPair is a prototype gamma-ray telescope for the development of key technologies for next-generation gamma-ray detectors consisting of four subsystems: a 10-layer double-sided silicon strip detector tracker, a cadmium zinc telluride calorimeter, a
Externí odkaz:
http://arxiv.org/abs/2405.15974
Autor:
Shy, Daniel, Woolf, Richard S., Sleator, Clio, Phlips, Bernard, Grove, J. Eric, Wulf, Eric A., Johnson-Rambert, Mary, Davis, Mitch, Kong, Emily, Caligiure, Thomas, Crosier, A. Wilder, Bolotnikov, Aleksey, Cannady, Nicholas, Carini, Gabriella A., Caputo, Regina, Fried, Jack, Ghosh, Priyarshini, Griffin, Sean, Hays, Elizabeth, Herrmann, Sven, Kierans, Carolyn, Kirschner, Nicholas, Liceaga-Indart, Iker, Metzler, Zachary, McEnery, Julie, Mitchell, John, Moiseev, A. A., Parker, Lucas, Dellapenna, Alfred, Perkins, Jeremy S., Sasaki, Makoto, Schoenwald, Adam J., Smith, Lucas D., Valverde, Janeth, Wasti, Sambid, Zajczyk, Anna
The ComPair gamma-ray telescope is a technology demonstrator for a future gamma-ray telescope called the All-sky Medium Energy Gamma-ray Observatory (AMEGO). The instrument is composed of four subsystems, a double-sided silicon strip detector, a virt
Externí odkaz:
http://arxiv.org/abs/2405.06839
Gamma-ray astrophysics in the MeV band is an exciting field in astronomy due to its potential for multi-messenger astrophysics. It has, however, remained under-explored when compared to other wavelengths. One reason for this observational gap is the
Externí odkaz:
http://arxiv.org/abs/2405.06815
EC 19529-4430 was identified as a helium-rich star in the Edinburgh-Cape Survey of faint-blue objects and subsequently resolved as a metal-poor extreme helium (EHe) star in the SALT survey of chemically-peculiar hot subdwarfs. This paper presents a f
Externí odkaz:
http://arxiv.org/abs/2404.03972
We characterise when a simple Happel-Reiten-Smalo tilt of a length heart is again a length heart in terms of approximation theory and the existence of a stability condition with a phase gap. We apply simple-minded reduction to provide a sufficient co
Externí odkaz:
http://arxiv.org/abs/2401.02947
We apply convex geometry (cones, fans) to homological input (abelian categories, hearts of bounded t-structures) to construct a new invariant of an abelian category, its heart fan. This can be viewed as a `universal phase diagram' for Bridgeland stab
Externí odkaz:
http://arxiv.org/abs/2310.02844