Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Georgiana A. Ogrean"'
Autor:
Annalisa Bonafede, Reinout J. van Weeren, Annika H. G. Peter, Felipe Andrade-Santos, Georgiana A. Ogrean, Francesco de Gasperin, Marusa Bradac, William A. Dawson, David Sobral, David Wittman, M. James Jee, Nathan Golovich, Tiziana Venturi, Bryant Benson, Brian C. Lemaux, Marcus Brüggen
Publikováno v:
Astrophysical Journal (0004-637X), 882(1), 69
Astrophysical Journal, vol 882, iss 1
Golovich, N; Dawson, WA; Wittman, DM; Weeren, RJV; Andrade-Santos, F; Jee, MJ; et al.(2018). Merging Cluster Collaboration: A Panchromatic Atlas of Radio Relic Mergers. UC Davis: Retrieved from: http://www.escholarship.org/uc/item/26810391
The Astrophysical Journal, vol 882, iss 1
The Astrophysical Journal
Astrophysical Journal, vol 882, iss 1
Golovich, N; Dawson, WA; Wittman, DM; Weeren, RJV; Andrade-Santos, F; Jee, MJ; et al.(2018). Merging Cluster Collaboration: A Panchromatic Atlas of Radio Relic Mergers. UC Davis: Retrieved from: http://www.escholarship.org/uc/item/26810391
The Astrophysical Journal, vol 882, iss 1
The Astrophysical Journal
Golovich et al. 2017b presents an optical imaging and spectroscopic survey of 29 radio relic merging galaxy clusters. In this paper, we study this survey to identify substructure and quantify the dynamics of the mergers. Using a combined photometric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b189d9f25cd044751bb802c73668f8d5
https://hdl.handle.net/1887/85055
https://hdl.handle.net/1887/85055
Autor:
H. J. A. Röttgering, Christine Jones, Laura Birzan, William A. Dawson, Georgiana A. Ogrean, J. Sabater, Judith H. Croston, Torsten A. Ensslin, S. S. Murray, T. J. Dijkema, Martin J. Hardcastle, S. S. Sridhar, S. van der Tol, Lawrence Rudnick, Roberto Pizzo, Marcus Brüggen, Rossella Cassano, Cathy Horellou, Maaijke Mevius, Aurora Simionescu, William R. Forman, Craig L. Sarazin, George Heald, Glenn J. White, Krzysztof T. Chyzy, Emanuela Orrú, Andra Stroe, G. K. Miley, Annalisa Bonafede, Wendy L. Williams, D. A. Rafferty, Hubertus Intema, G. Brunetti, Timothy W. Shimwell, Felipe Andrade-Santos, R. J. van Weeren, Philip Best, Chiara Ferrari, Matthias Hoeft, Ralph P. Kraft, Matt J. Jarvis, F. de Gasperin
Publikováno v:
NASA Astrophysics Data System
ASTROPHYSICAL JOURNAL, 818, 204
The Astrophysical Journal, 818(2), 204-223. IOP PUBLISHING LTD
ASTROPHYSICAL JOURNAL, 818, 204
The Astrophysical Journal, 818(2), 204-223. IOP PUBLISHING LTD
著者人数: 42名
Accepted: 2016-01-18
資料番号: SA1160090000
Accepted: 2016-01-18
資料番号: SA1160090000
Autor:
F. de Gasperin, Nathan Golovich, David Wittman, R. J. van Weeren, Marcus Brüggen, Daniel R. Wik, Rossella Cassano, Ruta Kale, Georgiana A. Ogrean, C. J. Riseley, Tiziana Venturi, V. Cuciti, Annalisa Bonafede
Publikováno v:
Monthly Notices of the Royal Astronomical Society, vol 470, iss 3
Pairs of radio relics are believed to form during cluster mergers, and are best observed when the merger occurs in the plane of the sky. Mergers can also produce radio halos, through complex processes likely linked to turbulent re-acceleration of cos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f470767138d08b4f9f4d0a315d3512a
http://arxiv.org/abs/1706.04203
http://arxiv.org/abs/1706.04203
Autor:
Paul Nulsen, Megan Donahue, William A. Dawson, Tony Mroczkowski, E. M. Churazov, Felipe Andrade-Santos, Alexey Vikhlinin, Georgiana A. Ogrean, Esra Bulbul, R. J. van Weeren, Jack Sayers, Annalisa Bonafede, Ralph P. Kraft, William R. Forman, Keiichi Umetsu, Connor J. J. Pearce, Scott W. Randall, Elke Roediger, Julian Merten, Adi Zitrin, Marcus Brüggen, Laurence P. David, Andy D. Goulding, Tracy Clarke, Piero Rosati, B. Mason, Christine Jones
Publikováno v:
The Astrophysical Journal, 835(2), 197
To investigate the relationship between thermal and non-thermal components in merger galaxy clusters, we present deep JVLA and Chandra observations of the HST Frontier Fields cluster MACS J0717.5+3745. The Chandra image shows a complex merger event,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87781228acbd8f0487b16b2aca824c3d
https://arxiv.org/abs/1701.04096
https://arxiv.org/abs/1701.04096
Autor:
Dharam V. Lal, Christine Jones, Kevin E. Fogarty, Ralph P. Kraft, Marcus Brüggen, William A. Dawson, Georgiana A. Ogrean, Vinicius M. Placco, William R. Forman, Andra Stroe, Dongsu Ryu, Nathan Golovich, Rafael M. Santucci, David Wittman, M. James Jee, Reinout J. van Weeren, Felipe Andrade-Santos, Hyesung Kang, David Sobral
Publikováno v:
Nature Astronomy. 1
Nature Astronomy 1, 0005 (2017); published 4 January 2017; corrected 13 January 2017. In the version of this Letter originally published Marcus Bruggen's name was spelled incorrectly. This has been corrected in the HTML version of the Letter.
Autor:
Georgiana A. Ogrean, Reinout J. van Weeren, Christine Jones, Vinicius M. Placco, Nathan Golovich, Kevin Fogarty, William A. Dawson, William R. Forman, David Wittman, M. James Jee, Andra Stroe, Rafael M. Santucci, Dharam V. Lal, Ralph P. Kraft, Felipe Andrade-Santos, Hyesung Kang, Dongsu Ryu, David Sobral, Marcus Brüggen
Publikováno v:
Nature Astronomy, vol 1, iss 1
Nature Astronomy, 1, 0005
Nature Astronomy, 1, 0005
On the largest scales, the Universe consists of voids and filaments making up the cosmic web. Galaxy clusters are located at the knots in this web, at the intersection of filaments. Clusters grow through accretion from these large-scale filaments and
Autor:
Reinout J. van Weeren, Georgiana A. Ogrean, Nathan Golovich, William A. Dawson, Annalisa Bonafede, David Wittman
Publikováno v:
Astrophysical Journal, vol 831, iss 1
NASA Astrophysics Data System
The Astrophysical Journal, vol 831, iss 1
NASA Astrophysics Data System
The Astrophysical Journal, vol 831, iss 1
We present an analysis of the merging cluster MACS J1149.5+2223 using archival imaging from Subaru/Suprime-Cam and multi-object spectroscopy from Keck/DEIMOS and Gemini/GMOS. We employ two and three dimensional substructure tests and determine that M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56783ad8993dc3d1a3c2e4459fa40380
https://escholarship.org/uc/item/9418h9vf
https://escholarship.org/uc/item/9418h9vf
Autor:
H. J. A. Röttgering, Matthias Hoeft, Judith H. Croston, Marcus Brüggen, R. J. van Weeren, Georgiana A. Ogrean
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 433:812-824
The cluster 1RXS J0603.3+4214 is a merging galaxy cluster that hosts three radio relics and a giant radio halo. The northern relic, the Toothbrush, is 1.9-Mpc long and has an unusual linear morphology. According to simple diffusive shock acceleration
Autor:
Georgiana A. Ogrean, Marcus Brüggen, H. J. A. Röttgering, R. J. van Weeren, Aurora Simionescu, Judith H. Croston, Matthias Hoeft
Publikováno v:
Astronomische Nachrichten. 334:342-345
Multiwavelength studies of radio relics at merger shocks set powerful constraints on the relics origin and formation mech-anism. However, for X-ray observations, a main difficulty is represented by the low X-ray surface brightness far out in the clus
Autor:
Judith H. Croston, H. J. A. Röttgering, Matthias Hoeft, Aurora Simionescu, Georgiana A. Ogrean, R. J. van Weeren, Marcus Brüggen
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 429:2617-2633
We studied the intracluster medium of the galaxy cluster CIZA J2242.8+5301 using deep XMM-Newton observations. The cluster hosts a remarkable 2-Mpc long, ~50-kpc wide radio relic that has been nicknamed the "Sausage". A smaller, more irregular counte