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Search for the Exit: Voyager 1 at Heliosphere’s Border with the Galaxy
Abstract
Unexpected Magnetic Highway: The heliopause is thought to separate the heliosphere (the bubble of plasma and magnetic field originating at the Sun) from interstellar plasma and magnetic field. In August last year, the Voyager 1 spacecraft, which was launched 35 years ago, was 18.5 billion kilometers away from the Sun, close to the expected location of the heliopause. Krimigis et al. (p. 144 , published online 27 June) report observations of energetic ions and electrons by Voyager 1 that suggest that a sharp and distinct boundary was crossed five times over ∼30 days. Burlaga et al. (p. 147 , published online 27 June) found that the magnetic field direction did not change across any of the boundary crossings, indicating that Voyager 1 had not crossed the heliopause but had entered a region in the heliosphere that serves as a magnetic highway along which low-energy ions from inside stream away and galactic cosmic rays flow in from interstellar space. Stone et al. (p. 150 , published online 27 June) report the spectra of low-energy galactic cosmic rays in this unexpected region.
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Cited by
Voyager 1 Observes Low-Energy Galactic Cosmic Rays in a Region Depleted of Heliospheric Ions
Stone, E. C., Cummings, A. C., McDonald, F. B., Heikkila, B. C., Lal, N., & Webber, W. R. (2013) · Science · doi:10.1126/science.1236408 · Cited by 593
Galactic Cosmic Rays Throughout the Heliosphere and in the Very Local Interstellar Medium
Rankin, J. S., Bindi, V., Bykov, A. M., Cummings, A. C., Della Torre, S., Florinski, V., Heber, B., Potgieter, M. S., Stone, E. C., & Zhang, M. (2022) · Space Science Reviews · doi:10.1007/s11214-022-00912-4 · Cited by 53
Roussos, E., Dialynas, K., Krupp, N., Kollmann, P., Paranicas, C., Roelof, E. C., Yuan, C., Mitchell, D. G., & Krimigis, S. M. (2020) · The Astrophysical Journal · doi:10.3847/1538-4357/abc346 · Cited by 24
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Metadata
- Authors
- Krimigis, S. M., Decker, R. B., Roelof, E. C., Hill, M. E., Armstrong, T. P., Gloeckler, G., Hamilton, D. C., & Lanzerotti, L. J.
- Venue
- Science
- Published
- 2013-07-12
- Volume
- 341
- Issue
- 6142
- Pages
- 144-147
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2075335567
- Cited by
- 212
- References
- 0
- FWCI
- 16.41
- Type
- journal article
- Language
- en
- Open access
- closed
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- Krimigis, S. M., Decker, R. B., Roelof, E. C., Hill, M. E., Armstrong, T. P., Gloeckler, G., Hamilton, D. C., & Lanzerotti, L. J. (2013). Search for the Exit: Voyager 1 at Heliosphere’s Border with the Galaxy. Science. https://doi.org/10.1126/science.1235721
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