Jagiellonian University Repository
Intergalactic magnetic fields in Stephan's Quintet
Communities & Collections
pcg.skipToMenu
Intergalactic magnetic fields in Stephan's Quintet
Bibliographic description
| title: | Intergalactic magnetic fields in Stephan's Quintet |
| author: | Nikiel-Wroczyński Błażej  , Soida Marian , Urbanik Marek , Beck R., Bomans D. J. |
| journal title: | Monthly Notices of the Royal Astronomical Society |
| volume: | 435 |
| issue: | 1 |
| date of publication : | 2013 |
| pages: | 149-157 |
| ISSN: |
0035-8711 |
| eISSN: |
1365-2966 |
| DOI: | |
| language: | English |
| journal language: | English |
| abstract in English: | We present the results from the Very Large Array radio continuum total power and polarized intensity observations of Stephan's Quintet at 1.43 and 4.86 GHz, along with complementary 4.85- and 8.35-GHz Effelsberg observations. Our study shows a large envelope of radio emission encompassing all the member galaxies and hence a large volume of intergalactic matter. Infall of the galaxy NGC 7318B produces a ridge of intergalactic, polarized emission, for which the magnetic field strength has been estimated as 11.0 $\pm$ 2.2 μG, with an ordered component of 2.6 $\pm$ 0.8 $\mu$G. The energy density of the field within the ridge area is of the same order as estimates of the thermal component, implying that the magnetic field has a significant role in the dynamics of the intergalactic matter. We also report that the tidal dwarf galaxy candidate SQ-B possesses a strong and highly anisotropic magnetic field, with a total strength equal to 6.5 $\pm$ 1.9 $\mu$G and an ordered component reaching 3.5 $\pm$ 1.2 $\mu$ G, which is comparable to that found in normal-sized galaxies. |
| keywords in English: | galaxies: groups: individual: HGC 92 (Stephan's Quintet), galaxies: interactions, galaxies: magnetic fields, intergalactic medium, polarization, radio continuum: galaxies |
| affiliation: | Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne |
| type: | journal article |
| subtype: | academic paper |
Files in this item
| Files | Size | Format | View |
|---|---|---|---|
|
There are no files associated with this item. |
|||
This item appears in the following Collection(s)
Projekt „Repozytorium otwartego dostępu do dorobku naukowego i dydaktycznego UJ” współfinansowany w ramach poddziałania 2.3.1 „Cyfrowe udostępnianie zasobów nauki” Programu Operacyjnego Polska Cyfrowa z Europejskiego Funduszu Rozwoju Regionalnego i budżetu państwa na podstawie umowy o dofinansowanie nr POPC.02.03.01-00-0030/17-00
