Zobrazeno 1 - 10
of 521
pro vyhledávání: '"R Upton"'
Autor:
Lloyd-Ronning, Nicole M., Johnson, Jarrett L., Sanderbeck, Phoebe R. Upton, Silva, Makana, Cheng, Roseanne M.
Although there is strong evidence that many long GRBs are associated with the collapse of a massive star, tantalizing results in recent years have upended the direct association of all long GRBs with massive stars. In particular, kilonova signals in
Externí odkaz:
http://arxiv.org/abs/2408.12654
The supermassive black holes (SMBHs) that power active galactic nuclei found at $z > 6$ were formed during the epoch of reionization. Because reionization is an inhomogeneous process, the physical properties of SMBH host galaxy environments will vary
Externí odkaz:
http://arxiv.org/abs/2312.08451
Publikováno v:
Echo Research and Practice, Vol 5, Iss 4, Pp R115-R125 (2018)
Echocardiography plays a crucial role in the diagnosis and management of cardiovascular disease. However, interpretation remains largely reliant on the subjective expertise of the operator. As a result inter-operator variability and experience can le
Externí odkaz:
https://doaj.org/article/eb53818ca1c84d92a58001b394a44e8e
Autor:
Lloyd-Ronning, Nicole M., Johnson, Jarrett L., Cheng, Roseanne M., Luu, A. Ken, Sanderbeck, Phoebe R. Upton, Kenoly, Lailani, Toral, Celia
For gamma-ray bursts (GRBs) with durations greater than two seconds (so-called long GRBs), the intrinsic prompt gamma-ray emission appears, on average, to last longer for bursts at lower redshifts. We explore the nature of this duration-redshift anti
Externí odkaz:
http://arxiv.org/abs/2212.08096
One of the most pressing questions in cosmology is how the black holes (BHs) powering quasars at high redshift grow to supermassive scales within a billion years of the Big Bang. Here we show that sustained super-Eddington accretion can be achieved f
Externí odkaz:
http://arxiv.org/abs/2201.11757
Autor:
Fryer, Chris L., Lien, Amy Y., Fruchter, Andrew, Ghirlanda, Giancarlo, Hartmann, Dieter, Salvaterra, Ruben, Sanderbeck, Phoebe R. Upton, Johnson, Jarrett L.
The immense power of gamma-ray bursts (GRBs) make them ideal probes of the early universe. By using absorption lines in the afterglows of high-redshift GRBs, astronomers can study the evolution of metals in the early universe. With an understanding o
Externí odkaz:
http://arxiv.org/abs/2112.00643
Autor:
Faith M Walker, Jordyn R Upton, Daryn Erickson, Zachary A Barrand, Breezy Brock, Michael Valentine, Emma L Federman, Emma M Froehlich, Lolita Van Pelt, Lias Hastings, Daniel E Sanchez, David L Bergman, David M Engelthaler, Crystal M Hepp
Publikováno v:
PLoS ONE, Vol 19, Iss 1, p e0294122 (2024)
It is not possible to systematically screen the environment for rabies virus (RABV) using current approaches. We sought to determine under what conditions RABV is detectable from feces and other accessible samples from infected wildlife to broaden th
Externí odkaz:
https://doaj.org/article/b1b89ddc66214627b4538791c68167b1
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Finkelstein, Steven L., D'Aloisio, Anson, Paardekooper, Jan-Pieter, Ryan Jr., Russell, Behroozi, Peter, Finlator, Kristian, Livermore, Rachael, Sanderbeck, Phoebe R. Upton, Vecchia, Claudio Dalla, Khochfar, Sadegh
We explore scenarios for reionizing the intergalactic medium with low galaxy ionizing photon escape fractions. We combine simulation-based halo-mass dependent escape fractions with an extrapolation of the observed galaxy rest-ultraviolet luminosity f
Externí odkaz:
http://arxiv.org/abs/1902.02792
Autor:
Evan H. Campbell Grant, Staci M. Amburgey, Brian Gratwicke, Victor Acosta‐Chaves, Anat M. Belasen, David Bickford, Carsten A. Brühl, Natalie E. Calatayud, Nick Clemann, Simon Clulow, Jelka Crnobrnja‐Isailovic, Jeff Dawson, David A. De Angelis, C. Kenneth Dodd Jr, Annette Evans, Gentile Francesco Ficetola, Mattia Falaschi, Sergio González‐Mollinedo, David M. Green, Roseanna Gamlen‐Greene, Richard A. Griffiths, Brian J. Halstead, Craig Hassapakis, Geoffrey Heard, Catharina Karlsson, Tom Kirschey, Blake Klocke, Tiffany A. Kosch, Sophia Kusterko Novaes, Luke Linhoff, John C. Maerz, Brittany A. Mosher, Katherine O'Donnell, Leticia M. Ochoa‐Ochoa, Deanna H. Olson, Kristiina Ovaska, J. Dale Roberts, Aimee J. Silla, Tariq Stark, Jeanne Tarrant, R. Upton, Judit Vörös, Erin Muths
Publikováno v:
Conservation Science and Practice, Vol 5, Iss 9, Pp n/a-n/a (2023)
Abstract The problem of global amphibian declines has prompted extensive research over the last three decades. Initially, the focus was on identifying and characterizing the extent of the problem, but more recently efforts have shifted to evidence‐
Externí odkaz:
https://doaj.org/article/2f2c576ff1e54a328144d2c5bf32ac9a