Letter | Published:

Galactic X-ray sources and the ionospheric D region

Nature volume 257, pages 3435 (04 September 1975) | Download Citation

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Abstract

SEVERAL authors (see refs 1–5 for example) have studied the possible influence of galactic point X-ray sources in the ionospheric D region. The observed variabilities in phase and amplitude of very low frequency (v.l.f.) night-time propagation have been attributed to different ionisation sources, but the relationship between the appearance of strong X-ray sources in the sky and the recorded v.1.f. phase and intensity variations has been emphasised. Particularly important are the effects of Sco X-1, Cen X-2 and Cen X-4.

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Author information

Affiliations

  1. Aeronomy Group, Engineering Department, Universidad Nacional de La Plata, and Comisión Nacional de Estudios Geo-Helioffsicos, Corrientes 640, Piso 11, Buenos Aires, Argentina

    • HAYDEE KARSZENBAUM
    •  & DOMINGO A. GAGLIARDINI

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DOI

https://doi.org/10.1038/257034a0

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