Results 81 to 90 of about 68,110 (257)

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

The Cavity of Cygnus A [PDF]

Astrophys.J. 644 (2006) L9-L12, 2006
In this paper, we focus on the limb-brightened, prolate spheroidal cavity of the radio galaxy Cygnus A, as revealed by the Chandra X-ray Observatory. We use the shock heated, thermal intracluster medium around the expanding cavity to infer the properties of the radio synchrotron-emitting gas inside the cavity.
arxiv   +1 more source

Confidence and information usage: Evidence from soil testing in India 

American Journal of Agricultural Economics, EarlyView.
Abstract Informational barriers are often considered to be a major constraint to the adoption of improved farming practices, inputs, and technologies by smallholder farmers. In the Indian context, it is widely believed that farmers misapply chemical fertilizers because they lack scientific information on soil conditions and corresponding fertilizer ...
Jared Gars, Ram Fishman, Avinash Kishore, Yoav Rothler, Patrick S. Ward   +4 more
wiley   +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

Testing the Collisionless Nature of Dark Matter with the Radial Acceleration Relation in Galaxy Clusters

The Astrophysical Journal, 2023
The radial acceleration relation (RAR) represents a tight empirical relation between the inferred total and baryonic centripetal accelerations, g _tot = GM _tot (< r )/ r ^2 and g _bar = GM _bar (< r )/ r ^2 , observed in galaxies and galaxy clusters ...
Sut-Ieng Tam, Keiichi Umetsu, Andrew Robertson, Ian G. McCarthy   +3 more
doaj   +1 more source

Gas Stripping of Dwarf Galaxies in Clusters of Galaxies [PDF]

, 2000
Many clusters of galaxies contain an appreciable amount of hot gas, the intracluster medium. As a consequence, gas will be stripped from galaxies that move through the inter cluster medium, if the ram pressure exceeds the internal gravitational force. We
Andreas Burkert, Babul A., Binggeli B., Bohringer H., Briel U. G., Cole S., Efstathiou G., Masao Mori, Nulsen P. E. J., Rees M. J., Yoshii Y.   +10 more
core   +2 more sources

XMM-Newton observation of M87 I. Single-phase temperature structure of intracluster medium [PDF]

, 2002
We report the results of a detailed analysis of the temperature structure of the X-ray emitting plasma halo of M~87, the cD galaxy of the Virgo Cluster. Using the MEKAL model, the data provide strong indications that the intracluster medium has a single phase structure locally, except the regions associated to the radio structures.
arxiv   +1 more source

Employment strategies in response to the first Covid lockdown: A typology of French workplaces

Industrial Relations: A Journal of Economy and Society, Volume 64, Issue 2, Page 168-199, April 2025.
Abstract This research connects the literature on crisis management and on firm flexibility to investigate human resource (HR) strategies in response to unexpected crises such as the Covid‐19 pandemic. Leveraging data from French workplaces we identify five main types of strategies implemented during the first lockdown, which go beyond the massive use ...
Philippe Askenazy, Clément Brébion, Pierre Courtioux, Christine Erhel, Malo Mofakhami   +4 more
wiley   +1 more source

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