Matches in SemOpenAlex for { <https://semopenalex.org/work/W2029686561> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W2029686561 endingPage "1033" @default.
- W2029686561 startingPage "1028" @default.
- W2029686561 abstract "Abstract Radio halos require the coexistence of extra‐planar cosmic rays and magnetic fields. Because cosmic rays are injected and accelerated by processes related to star formation in the disk, they have to be transported from the disk into the halo. A vertical large‐scale magnetic field can significantly enhance this transport. We observed NGC 253 using radio continuum polarimetry with the Effelsberg and VLA telescopes. The radio halo of NGC 253 has a dumbbell shape with the smallest vertical extension near the center. With an estimate for the electron lifetime, we measured the cosmic‐ray bulk speed as 300 ± 30 km s –1 which is constant over the extent of the disk. This shows the presence of a “disk wind” in NGC 253. We propose that the large‐scale magnetic field is the superposition of a disk ( r , ϕ ) and halo ( r , z ) component. The disk field is an inward‐pointing spiral with even parity. The conical (even) halo field appears in projection as an X‐shaped structure, as observed in other edge‐on galaxies. Interaction by compression in the walls of the superbubbles may explain the observed alignment between the halo field and the lobes of hot H α and soft X‐ray emitting gas. The disk wind is a good candidate for the transport of small‐scale helical fields, required for efficient dynamo action, and as a source for the neutral hydrogen observed in the halo (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)" @default.
- W2029686561 created "2016-06-24" @default.
- W2029686561 creator A5001154357 @default.
- W2029686561 creator A5022774707 @default.
- W2029686561 creator A5037376702 @default.
- W2029686561 creator A5066077016 @default.
- W2029686561 date "2009-11-04" @default.
- W2029686561 modified "2023-09-27" @default.
- W2029686561 title "Transport of cosmic rays in the nearby starburst galaxy NGC 253" @default.
- W2029686561 cites W1968491582 @default.
- W2029686561 cites W1987936139 @default.
- W2029686561 cites W2030975032 @default.
- W2029686561 cites W2074710719 @default.
- W2029686561 cites W2099178377 @default.
- W2029686561 cites W2125864271 @default.
- W2029686561 cites W2126594201 @default.
- W2029686561 cites W2144978813 @default.
- W2029686561 cites W2153306591 @default.
- W2029686561 cites W2949610054 @default.
- W2029686561 cites W3098872520 @default.
- W2029686561 cites W3099681467 @default.
- W2029686561 cites W3103726718 @default.
- W2029686561 cites W3125263233 @default.
- W2029686561 cites W4301147169 @default.
- W2029686561 doi "https://doi.org/10.1002/asna.200911279" @default.
- W2029686561 hasPublicationYear "2009" @default.
- W2029686561 type Work @default.
- W2029686561 sameAs 2029686561 @default.
- W2029686561 citedByCount "7" @default.
- W2029686561 countsByYear W20296865612012 @default.
- W2029686561 countsByYear W20296865612013 @default.
- W2029686561 countsByYear W20296865612016 @default.
- W2029686561 countsByYear W20296865612018 @default.
- W2029686561 crossrefType "journal-article" @default.
- W2029686561 hasAuthorship W2029686561A5001154357 @default.
- W2029686561 hasAuthorship W2029686561A5022774707 @default.
- W2029686561 hasAuthorship W2029686561A5037376702 @default.
- W2029686561 hasAuthorship W2029686561A5066077016 @default.
- W2029686561 hasBestOaLocation W20296865611 @default.
- W2029686561 hasConcept C111309251 @default.
- W2029686561 hasConcept C115260700 @default.
- W2029686561 hasConcept C121332964 @default.
- W2029686561 hasConcept C1276947 @default.
- W2029686561 hasConcept C184665706 @default.
- W2029686561 hasConcept C44870925 @default.
- W2029686561 hasConcept C62520636 @default.
- W2029686561 hasConcept C63585750 @default.
- W2029686561 hasConcept C98444146 @default.
- W2029686561 hasConceptScore W2029686561C111309251 @default.
- W2029686561 hasConceptScore W2029686561C115260700 @default.
- W2029686561 hasConceptScore W2029686561C121332964 @default.
- W2029686561 hasConceptScore W2029686561C1276947 @default.
- W2029686561 hasConceptScore W2029686561C184665706 @default.
- W2029686561 hasConceptScore W2029686561C44870925 @default.
- W2029686561 hasConceptScore W2029686561C62520636 @default.
- W2029686561 hasConceptScore W2029686561C63585750 @default.
- W2029686561 hasConceptScore W2029686561C98444146 @default.
- W2029686561 hasIssue "9-10" @default.
- W2029686561 hasLocation W20296865611 @default.
- W2029686561 hasLocation W20296865612 @default.
- W2029686561 hasLocation W20296865613 @default.
- W2029686561 hasLocation W20296865614 @default.
- W2029686561 hasOpenAccess W2029686561 @default.
- W2029686561 hasPrimaryLocation W20296865611 @default.
- W2029686561 hasRelatedWork W1922699913 @default.
- W2029686561 hasRelatedWork W2002418785 @default.
- W2029686561 hasRelatedWork W2018460911 @default.
- W2029686561 hasRelatedWork W2037983614 @default.
- W2029686561 hasRelatedWork W2050942819 @default.
- W2029686561 hasRelatedWork W2144397903 @default.
- W2029686561 hasRelatedWork W3098997918 @default.
- W2029686561 hasRelatedWork W3102549633 @default.
- W2029686561 hasRelatedWork W3105454402 @default.
- W2029686561 hasRelatedWork W4308191026 @default.
- W2029686561 hasVolume "330" @default.
- W2029686561 isParatext "false" @default.
- W2029686561 isRetracted "false" @default.
- W2029686561 magId "2029686561" @default.
- W2029686561 workType "article" @default.