Results 61 to 70 of about 16,927 (234)

GeV Gamma-ray Flux Upper Limits from Clusters of Galaxies [PDF]

, 2010
The detection of diffuse radio emission associated with clusters of galaxies indicates populations of relativistic leptons infusing the intracluster medium.
Ackermann, M., Ajello, M., Allafort, A., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bechtol, K., Bellazzini, R., Blandford, R., Blasi, P., Bloom, E., Bonamente, E., Borgland, A., Bouvier, A., Brandt, T., Bregeon, J., Brigida, M., Bruel, P., Buehler, R., Buson, S., Caliandro, G., Cameron, R., Caraveo, P., Carrigan, S., Casandjian, J., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Cheung, C., Chiang, J., Ciprini, S., Claus, R., Cohen-Tanugi, J., Colafrancesco, S., Cominsky, L., Conrad, J., de Palma, F., Dermer, C., do Couto e Silva, E., Drell, P., Dubois, R., Dumora, D., Edmonds, Y., Farnier, C., Favuzzi, C., Frailis, M., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Germani, S., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grenier, I., Grondin, M., Guiriec, S., Hadasch, D., Harding, A., Hayashida, M., Hays, E., Horan, D., Hughes, R., Jeltema, T., Johnson, A., Johnson, T., Johnson, W., Jóhannesson, G., Kamae, T., Katagiri, H., Kataoka, J., Kerr, M., Knödlseder, J., Kuss, M., Lande, J., Latronico, L., Lee, S., Lemoine-Goumard, M., Longo, F., Loparco, F., Lott, B., Lovellette, M., Lubrano, P., Madejski, G., Makeev, A., Mazziotta, M., Michelson, P., Mitthumsiri, W., Mizuno, T., Moiseev, A., Monte, C., Monzani, M., Morselli, A., Moskalenko, I., Murgia, S., Naumann-Godo, M., Nolan, P., Norris, J., Nuss, E., Ohsugi, T., Omodei, N., Orlando, E., Ormes, J., Ozaki, M., Paneque, D., Panetta, J., Pepe, M., Pesce-Rollins, M., Petrosian, V., Pfrommer, C., Piron, F., Porter, T., Profumo, S., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Reposeur, T., Ripken, J., Ritz, S., Rodriguez, A., Romani, R., Roth, M., Sadrozinski, H., Sander, A., Saz Parkinson, P., Scargle, J., Sgrò, C., Siskind, E., Smith, P., Spandre, G., Spinelli, P., Starck, J., Stawarz, Ł., Strickman, M., Strong, A., Suson, D., Tajima, H., Takahashi, H., Takahashi, T., Tanaka, T., Thayer, J., Thayer, J., Tibaldo, L., Tibolla, O., Torres, D., Tosti, G., Tramacere, A., Uchiyama, Y., Usher, T., Vandenbroucke, J., Vasileiou, V., Vilchez, N., Vitale, V., Waite, A., Wang, P., Winer, B., Wood, K., Yang, Z., Ylinen, T., Ziegler, M., Çelik, Ö.   +168 more
core   +3 more sources

SZ–X-Ray Surface Brightness Fluctuations in the SPT-XMM Clusters

The Astrophysical Journal
The hot plasma in galaxy clusters, the intracluster medium, is expected to be shaped by subsonic turbulent motions, which are key for heating, cooling, and transport mechanisms.
Charles E. Romero, Massimo Gaspari, Gerrit Schellenberger, Bradford A. Benson, Lindsey E. Bleem, Esra Bulbul, William Forman, Ralph Kraft, Paul Nulsen, Christian L. Reichardt, Arnab Sarkar, Taweewat Somboonpanyakul, Yuanyuan Su   +12 more
doaj   +1 more source

Deep Synoptic Array Science: Two Fast Radio Burst Sources in Massive Galaxy Clusters

The Astrophysical Journal Letters, 2023
The hot gas that constitutes the intracluster medium (ICM) has been studied at X-ray and millimeter/submillimeter wavelengths (Sunyaev–Zel’dovich effect) for decades.
Liam Connor, Vikram Ravi, Morgan Catha, Ge Chen, Jakob T. Faber, James W. Lamb, Gregg Hallinan, Charlie Harnach, Greg Hellbourg, Rick Hobbs, David Hodge, Mark Hodges, Casey Law, Paul Rasmussen, Jack Sayers, Kritti Sharma, Myles B. Sherman, Jun Shi, Dana Simard, Jean Somalwar, Reynier Squillace, Sander Weinreb, David P. Woody, Nitika Yadlapalli, The Deep Synoptic Array team   +24 more
doaj   +1 more source

Distribution and Evolution of Metals in the Magneticum Simulations

Galaxies, 2017
Metals are ideal tracers of the baryonic cycle within halos. Their composition is a fossil record connecting the evolution of the various stellar components of galaxies to the interaction with the environment by in- and out-flows.
Klaus Dolag, Emilio Mevius, Rhea-Silvia Remus   +2 more
doaj   +1 more source

A Generative Model for Realistic Galaxy Cluster X-Ray Morphologies

The Astrophysical Journal
The X-ray morphologies of clusters of galaxies display significant variations, reflecting their dynamical histories and the nonlinear dependence of X-ray emissivity on the density of the intracluster gas. Qualitative and quantitative assessments of X-ray
Maya Benyas, Jordan Pfeifer, Adam B. Mantz, Steven W. Allen, Elise Darragh-Ford   +4 more
doaj   +1 more source

A holistic view on ram pressure stripping in the Virgo cluster - The first complete model-based time sequence

, 2009
Based on a comparison of dynamical models with observations of the interstellar gas in 6 Virgo cluster spiral galaxies a first complete ram pressure stripping time sequence has been established.
B. Vollmer, Balogh, Biller, Byrd, Böhringer, Chamaraux, Chung, Combes, Crowl, Dressler, Dressler, Dressler, Fasano, Finoguenov, Giovanelli, Gomez, Gott, Hashimoto, Haynes, Irwin, Kauffmann, Kenney, Kenney, Kenney, Koopmann, Lewis, Mei, Moore, Moore, Moran, Oemler, Oemler, Oosterloo, Otmianowska-Mazur, Panuzzo, Poggianti, Randall, Schindler, Shibata, Soida, Valluri, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer   +49 more
core   +1 more source

Observational Predictions for the Survival of Atomic Hydrogen in Simulated Fornax-like Galaxy Clusters

The Astrophysical Journal
The presence of dense, neutral hydrogen clouds in the hot, diffuse intragroup and intracluster (IC) medium is an important clue to the physical processes controlling the survival of cold gas and sheds light on cosmological baryon flows in massive halos ...
Avinash Chaturvedi, Stephanie Tonnesen, Greg L. Bryan, Gergö Popping, Michael Hilker, Paolo Serra, Shy Genel   +6 more
doaj   +1 more source

Surface Brightness Fluctuations in Two SPT Clusters: A Pilot Study

The Astrophysical Journal
Studies of surface brightness fluctuations in the intracluster medium present an indirect probe of turbulent properties such as the turbulent velocities, injection scales, and the slope of the power spectrum of fluctuations toward smaller scales.
Charles E. Romero, Massimo Gaspari, Gerrit Schellenberger, Bradford A. Benson, Lindsey E. Bleem, Esra Bulbul, Matthias Klein, Ralph Kraft, Paul Nulsen, Christian L. Reichardt, Laura Salvati, Taweewat Somboonpanyakul, Yuanyuan Su   +12 more
doaj   +1 more source

Sound waves in the intracluster medium [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
We present an analysis of the behaviour of a perturbed radio cocoon. Comparisons with observations of sound waves detected in the Perseus and Virgo clusters suggest the separations of observed ripples correspond to the natural oscillation frequency of the cocoon.
Stanislav S. Shabala, P. Alexander
openaire   +2 more sources

Gravity-selected Cluster Samples: A New Take on the Compton-y–Mass Relation

The Astrophysical Journal
We investigate the scaling relation between the Compton- y parameter and mass in a gravity-selected sample of galaxy clusters, selected based on their gravitational lensing effects on background galaxies. Unlike intracluster medium (ICM)−selected samples,
S. Andreon, M. Radovich
doaj   +1 more source