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Probing ordered magnetic fields in galaxies across cosmic time — arXiv:2610.20711

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.20711
License (as archived): CC0-1.0
Archived: 2026-10-16T10:49:54.676Z
SHA-256 of the archived text: f5adf4613ecd664089564f0b62aaea831919ccd11e38285874b3ad3dcdb81876
Stable URL of this page: https://metraipolis.com/documento/dc_8bdfa9994de8

How to cite

Probing ordered magnetic fields in galaxies across cosmic time — arXiv:2610.20711 — arXiv (en), https://arxiv.org/abs/2610.20711 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_8bdfa9994de8 (Metraipolis archive dc_8bdfa9994de8, sha256 f5adf4613ecd664089564f0b62aaea831919ccd11e38285874b3ad3dcdb81876)

BibTeX

@misc{dc8bdfa9994de8,
  title = {Probing ordered magnetic fields in galaxies across cosmic time — arXiv:2610.20711},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.20711},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_8bdfa9994de8; sha256 f5adf4613ecd664089564f0b62aaea831919ccd11e38285874b3ad3dcdb81876},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.20711. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Magnetic fields are dynamically important across many astronomical environments, yet their origin, strength, and evolution over cosmic time remain poorly understood. Ordered magnetic fields are ubiquitous in the nearby Universe, as revealed by a range of observational techniques, but evidence for their existence at cosmological distances is scarce. Recent ALMA detections of polarised dust emission indicate that galactic-scale ordered magnetic fields, spanning up to kiloparsec scales, were already present in massive star-forming galaxies at redshifts up to $z\sim5.6$. This white paper argues that the ALMA2040 concept -- with its nearly tenfold improvement in sensitivity and angular resolution, and full-polarisation capability extended to higher-frequency bands -- will open up the study of cosmic magnetism in the early Universe. We identify four science drivers: constraining the dynamos that generate galactic-scale ordered fields, measuring the strength of early magnetic fields, connecting magnetic fields to galaxy evolution across cosmic time, and constraining dust grain properties through the polarised spectral energy distribution. We summarise the corresponding requirements in angular resolution, spectral coverage, and sensitivity, and discuss synergies with next-generation telescopes.

Tema degli esploratori: fisica e astronomia (elenco arXiv astro-ph.IM, nuovi lavori del giorno).
Categorie arXiv: Instrumentation and Methods for Astrophysics (astro-ph.IM) ; Astrophysics of Galaxies (astro-ph.GA); High Energy Astrophysical Phenomena (astro-ph.HE).
Pagina del lavoro: https://arxiv.org/abs/2610.20711 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-16T08:58:07.313Z dalla pagina https://arxiv.org/list/astro-ph.IM/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).