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Who Built Old St Peter’s? The Evidence of the Inscriptions and Mosaics

Autor: Alastair H. B. Logan

Publikováno v: Vigiliae Christianae. 75:43-69

Old St Peter’s in Rome, according to the sixth-century Liber Pontificalis, was founded by Constantine (306–337), a claim accepted by most scholars who appeal to a variety of evidence. This paper will challenge this, focusing on the inscriptional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7db75e4bffcba69238bc3be3d11dca04
https://doi.org/10.1163/15700720-12341463

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Broad-line Region Clouds orbiting an AGN sample

Autor: J Armijos-Abendaño, E López, M Llerena, C H A Logan

We present a spectral and temporal analysis of XMM-Newton data from a sample of six galaxies (NGC 3783, Mrk 279, Mrk 766, NGC 3227, NGC 7314, and NGC 3516). Using the hardness-ratio curves, we identify time-intervals in which clouds are eclipsing the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cabc7a8f21b7aaaf93b667d9f2ff853

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The XXL Survey – XLVIII. X-ray follow-up of distant XXL clusters: masses, scaling relations, and AGN contamination

Autor: R T Duffy, C H A Logan, B J Maughan, D Eckert, M Birkinshaw, N Clerc, S Ettori, F Gastaldello, E Koulouridis, M Pierre, M Ricci, M Sereno, I Valtchanov, J P Willis

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 512 (2), pp.2525-2536. ⟨10.1093/mnras/stac617⟩
Duffy, R T, Logan, C H A, Maughan, B J, Eckert, D, Clerc, N, Ettori, S, Gastaldello, F, Koulouridis, E, Pierre, M, Ricci, M, Sereno, M, Valtchanov, I & Willis, J P 2022, ' The XXL Survey – XLVIII. X-ray follow-up of distant XXL clusters : masses, scaling relations, and AGN contamination ', Monthly Notices of the Royal Astronomical Society, vol. 512, no. 2, pp. 2525-2536 . https://doi.org/10.1093/mnras/stac617

We use deep follow-up XMM-Newton observations of 6 clusters discovered in the XXL Survey at $z>1$ to gain robust measurements of their X-ray properties and to investigate the extent to which scaling relations at low redshift are valid at $z>1$. This

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b66b1eaa0fe97ac91bd5acb88f40be5a
https://hal.science/hal-03644813/file/stac617.pdf

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Chandra follow-up of the Hectospec Cluster Survey: comparison of caustic and hydrostatic masses and constraints on the hydrostatic bias

Autor: Crispin H. A. Logan, Ben J. Maughan, Antonaldo Diaferio, Ryan T. Duffy, Margaret J. Geller, Kenneth Rines, Jubee Sohn

Publikováno v: Logan, C H A, Maughan, B J, Diaferio, A, Duffy, R T, Geller, M J, Rines, K & Sohn, J 2022, ' Chandra follow-up of the Hectospec Cluster Survey : Comparison of caustic and hydrostatic masses and constraints on the hydrostatic bias ', Astronomy and Astrophysics, vol. 665, A124 . https://doi.org/10.1051/0004-6361/202243347

Clusters of galaxies are powerful probes with which to study cosmology and astrophysics. However, for many applications an accurate measurement of a cluster's mass is essential. A systematic underestimate of hydrostatic masses from X-ray observations

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba9f3c25ed6d10237724eeb14f3f3134
https://hdl.handle.net/2318/1890593

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Practicing Gnosis: Ritual, Magic, Theurgy and Liturgy in Nag Hammadi, Manichaean and Other Ancient Literature. Essays in Honor of Birger A. Pearson.Edited by April D. DeConick, Gregory Shaw, and John D. Turner

Autor: Alastair H. B. Logan

Publikováno v: The Journal of Theological Studies. 67:305-308

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88cd18e78dfca1fbf83f1d61ace9b874
https://doi.org/10.1093/jts/flw012

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The Johannine Literature and the Gnostics

Autor: Alastair H. B. Logan

Publikováno v: Oxford Handbooks

This chapter is based on an understanding of the terms ‘gnōsis’ and ‘Gnostic’ which embraces both mythological and non-mythological texts. It argues for the key significance of the early gnostic Cerinthus for the genesis of the Johannine lit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3576d3c43a043444e5cd5b45a0cfa785
https://doi.org/10.1093/oxfordhb/9780198739982.013.10

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