Deep learning-based super-resolution and de-noising for XMM-newton images

Autor: Sam F Sweere, Ivan Valtchanov, Maggie Lieu, Antonia Vojtekova, Eva Verdugo, Maria Santos-Lleo, Florian Pacaud, Alexia Briassouli, Daniel Cámpora Pérez

Publikováno v: Monthly Notices of the Royal Astronomical Society, 517(3), 4054-4069. Oxford University Press

The field of artificial intelligence based image enhancement has been rapidly evolving over the last few years and is able to produce impressive results on non-astronomical images. In this work, we present the first application of Machine Learning ba

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a543969abe86b1aec9a67abe821523b
https://cris.maastrichtuniversity.nl/en/publications/69083ed2-9997-4140-8fb6-c5566df80326

The XXL survey - XLVI. Forward cosmological analysis of the C1 cluster sample

Autor: C. Adami, C. Garrel, Marguerite Pierre, Keiichi Umetsu, Lauro Moscardini, Elias Koulouridis, L. Chiappetti, Dominique Eckert, Sunayana Bhargava, Fabio Gastaldello, Jean-Paul Le Fevre, N. Clerc, Alfonso Veropalumbo, Mauro Sereno, Florian Pacaud, Patrick Valageas, Manolis Plionis, Federico Marulli

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2022, 663, pp.A3. ⟨10.1051/0004-6361/202141204⟩

We present the forward cosmological analysis of an $XMM$ selected sample of galaxy clusters out to a redshift of unity. Following our previous 2018 study based on the dn/dz quantity alone, we perform an upgraded cosmological analysis of the same XXL

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9b04135437b90455c6bab125efda646
https://hal.science/hal-03376407

The eROSITA Final Equatorial-Depth Survey (eFEDS): X-ray Properties and Scaling Relations of Galaxy Clusters and Groups

Autor: Y. Emre Bahar, Esra Bulbul, Nicolas Clerc, Vittorio Ghirardini, Ang Liu, Kirpal Nandra, Florian Pacaud, I-Non Chiu, Johan Comparat, Jacob Ider-Chitham, Mathias Klein, Teng Liu, Andrea Merloni, Konstantinos Migkas, Nobuhiro Okabe, Miriam E. Ramos-Ceja, Thomas H. Reiprich, Jeremy S. Sanders, Tim Schrabback

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2022, 661, pp.A7. ⟨10.1051/0004-6361/202142462⟩

We investigate the scaling relations between X-ray observables of the clusters detected in the eFEDS field using Spectrum-Roentgen-Gamma/eROSITA observations taking into account the selection effects and the distributions of observables with cosmic t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::976a4d9f80e2f61adb0629885ea6c489
http://arxiv.org/abs/2110.09534

The eROSITA view of the Abell 3391/95 field: The Northern Clump. The largest infalling structure in the longest known gas filament observed with eROSITA, XMM-Newton, and Chandra

Autor: Ang Liu, V. Biffi, Ralph Kraft, B. S. Koribalski, Efrain Gatuzz, Andrew M. Hopkins, Paul Nulsen, Thomas Erben, A. Veronica, Esra Bulbul, M. Kara, Tessa Vernstrom, Klaus Dolag, Thomas H. Reiprich, Florian Pacaud, Y. Su, Jeremy S. Sanders, K. Migkas, J. Kerp, V. Ghirardini, A. Bogdan

SRG/eROSITA PV observations revealed the A3391/95 cluster system and the Northern Clump (MCXC J0621.7-5242 galaxy cluster) are aligning along a cosmic filament in soft X-rays, similarly to what has been seen in simulations before. We aim to understan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::323c943923aecda13eef5540ac433511
http://arxiv.org/abs/2106.14543

GAMA/XXL: X-ray point sources in low-luminosity galaxies in the GAMA G02/XXL-N field

Autor: Angela Bongiorno, R. De Propris, Florian Pacaud, M. N. Bremer, Sotiria Fotopoulou, Simon P. Driver, Marguerite Pierre, Ivan K. Baldry, E. Nwaokoro, Andrew M. Hopkins, Michael J. I. Brown, Manolis Plionis, Sean L. McGee, Steven Phillipps, Ben J Maughan, Andrew J. Young, Andrii Elyiv, L. Chiappetti, Paul Giles, Bianca M. Poggianti, Cristian Vignali

Publikováno v: Nwaokoro, E, Phillipps, S, Young, A J, Baldry, I, Bongiorno, A, Bremer, M N, Brown, M J I, Chiappetti, L, De Propris, R, Driver, S P, Elyiv, A, Fotopoulou, S, Giles, P A, Hopkins, A M, Maughan, B, McGee, S, Pacaud, F, Pierre, M, Plionis, M, Poggianti, B M & Vignali, C 2021, ' GAMA/XXL : X-ray point sources in low-luminosity galaxies in the GAMA G02/XXL-N field ', Monthly Notices of the Royal Astronomical Society, vol. 502, no. 2, pp. 3101–3112 . https://doi.org/10.1093/mnras/stab242

Relatively few X-ray sources are known that have low-mass galaxies as hosts. This is an important restriction on studies of active galactic nuclei (AGNs), hence black holes, and of X-ray binaries (XRBs) in low-mass galaxies; addressing it requires ve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0187920f97ef63e55bfe1c36a3f9c5e2
http://hdl.handle.net/20.500.12386/32060