ORCID Profile
0000-0003-0667-5941
Current Organisations
Stanford University
,
University of Liverpool
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Publisher: Oxford University Press (OUP)
Date: 15-03-2017
DOI: 10.1093/MNRAS/STX594
Publisher: American Physical Society (APS)
Date: 07-07-2020
Publisher: American Astronomical Society
Date: 18-02-2020
Publisher: Oxford University Press (OUP)
Date: 24-04-2013
DOI: 10.1093/MNRAS/STT514
Publisher: WORLD SCIENTIFIC
Date: 29-01-2015
Publisher: Elsevier BV
Date: 2019
Abstract: An elicitation exercise was conducted to collect and identify pressing questions concerning the study of helminths in livestock, to help guide research priorities. Questions were invited from the research community in an inclusive way. Of 385 questions submitted, 100 were chosen by online vote, with priority given to open questions in important areas that are specific enough to permit investigation within a focused project or programme of research. The final list of questions was ided into ten themes. We present the questions and set them briefly in the context of the current state of knowledge. Although subjective, the results provide a snapshot of current concerns and perceived priorities in the field of livestock helminthology, and we hope that they will stimulate ongoing or new research efforts.
Publisher: American Astronomical Society
Date: 02-2023
Abstract: We have combined X-ray observations from Chandra with Sunyaev–Zel’dovich effect data from Planck and Bolocam to measure intracluster medium pressure profiles from 0.03 R 500 ≤ R ≤ 5 R 500 for a s le of 21 low- z galaxy clusters with a median redshift of 〈 z 〉 = 0.08 and a median mass of 〈 M 500 〉 = 6.1 × 10 14 M ⊙ and a s le of 19 mid- z galaxy clusters with 〈 z 〉 = 0.50 and 〈 M 500 〉 = 10.6 × 10 14 M ⊙ . The mean scaled pressure in the low- z s le is lower at small radii and higher at large radii, a trend that is accurately reproduced in similarly selected s les from The Three Hundred simulations. This difference appears to be primarily due to dynamical state at small radii, evolution at intermediate radii, and a combination of evolution and mass dependence at large radii. Furthermore, the overall flattening of the mean scaled pressure profile in the low- z s le compared to the mid- z s le is consistent with expectations due to differences in the mass accretion rate and the fractional impact of feedback mechanisms. In agreement with previous studies, the fractional scatter about the mean scaled pressure profile reaches a minimum of ≃20% near 0.5 R 500 . This scatter is consistent between the low- z and mid- z s les at all radii, suggesting it is not strongly impacted by s le selection, and this general behavior is reproduced in The Three Hundred simulations. Finally, analytic functions that approximately describe the mass and redshift trends in mean pressure profile shape are provided.
Publisher: American Astronomical Society
Date: 27-12-2018
Publisher: American Astronomical Society
Date: 22-01-2016
Publisher: American Astronomical Society
Date: 22-06-2015
Publisher: American Astronomical Society
Date: 05-03-2020
Publisher: American Astronomical Society
Date: 18-05-2015
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Steven Allen.