Observations of magnetic fields in regular and irregular clusters
نویسندگان
چکیده
منابع مشابه
Observations of magnetic fields in regular and irregular clusters
The existence of magnetic fields associated with the intracluster medium in clusters of galaxies is now well established through different methods of analysis. The most detailed evidence for the presence of cluster magnetic fields comes from radio observations. Magnetic fields can be investigated through the synchrotron emission of cluster-wide diffuse sources and from studies of the rotation m...
متن کاملHydrogen Atom in Strong Magnetic Fields: Regular and Irregular Motions
The stochastic transition in the classical Hamilton System describing the hydrogen atom in a strong magnetic field is observed by means of Poincaré mappings, and discussed in the framework of the gênerai theory of tori destruction. The existence of the third intégral in the regular région below the critical energy can explain the exponentially small séparations at avoided crossings of the energ...
متن کاملMagnetic Fields in Clusters: Theory vs. Observations
It is now well established that the plasma in galaxy clusters is magnetized. In some cases, at least, the field is strong enough to be dynamically important. Perhaps this is the time to move past simple detection experiments, and to work towards a general understanding of the strength, structure and maintenance of the cluster field.
متن کاملRegular magnetic fields in the dwarf irregular galaxy NGC 4449
We present a high-resolution VLA study of the total power and polarized radio continuum emission at 8.46 and 4.86 GHz of the irregular galaxy NGC 4449, known for its weak rotation and non-systematic gas motions. We found strong galaxy-scale regular magnetic fields, which is surprising because of a lack of ordered rotation required for the dynamo action. The strength of the regular field reaches...
متن کاملFaraday Rotation Observations of Magnetic Fields in Galaxy Clusters
The presence of magnetic fields in the intracluster medium in clusters of galaxies has been revealed through several different observational techniques. These fields may be dynamically important in clusters as they will provide additional pressure support to the intracluster medium as well as inhibit transport mechanisms such as thermal conduction. Here, we review the current observational stat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 2006
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.200610583