Voyager 2 enters interstellar space
نویسندگان
چکیده
منابع مشابه
Voyager Interstellar Mission
The Voyager Interstellar Mission is exploring the interaction of the heliosphere with the local interstellar medium (LISM). Voyager 1 (V1) and Voyager 2 (V2) are both in the heliosheath, making the first in situ observations of the shocked solar wind beyond the termination shock (TS). The heliosheath extends to the heliopause; beyond the heliopause is the interstellar medium. The goal of the Vo...
متن کاملIn situ observations of interstellar plasma with Voyager 1.
Launched over 35 years ago, Voyagers 1 and 2 are on an epic journey outward from the Sun to reach the boundary between the solar plasma and the much cooler interstellar medium. The boundary, called the heliopause, is expected to be marked by a large increase in plasma density, from about 0.002 per cubic centimeter (cm(-3)) in the outer heliosphere, to about 0.1 cm(-3) in the interstellar medium...
متن کاملConfronting Observations and Modeling: The Role of the Interstellar Magnetic Field in Voyager 1 and 2 Asymmetries
Magnetic effects are ubiquitous and known to be crucial in space physics and astrophysical media. We have now the opportunity to probe these effects in the outer heliosphere with the two spacecraft Voyager 1 and 2. Voyager 1 crossed, in December 2004, the termination shock and is now in the heliosheath. On August 30, 2007 Voyager 2 crossed the termination shock, providing us for the first time ...
متن کاملThe chemistry of interstellar space
Interstellar space is not empty, but contains gaseous and particulate matter that is concentrated into very large regions known as interstellar clouds. In the denser and cooler clouds, the gas is molecular and most of the molecules detected are organic in nature. The gas-phase molecules are synthesised from precursor atoms by rapid exothermic reactions in the gas and on the surfaces of tiny dus...
متن کاملGalactic Cosmic Rays in the Local Interstellar Medium: Voyager 1 Observations and Model Results
Since 2012 August Voyager 1 has been observing the local interstellar energy spectra of Galactic cosmic-ray nuclei down to 3MeV nuc and electrons down to 2.7 MeV. The H and He spectra have the same energy dependence between 3 and 346MeV nuc, with a broad maximum in the 10–50MeV nuc range and a H/He ratio of 12.2 ± 0.9. The peak H intensity is ∼15 times that observed at 1 AU, and the observed lo...
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ژورنال
عنوان ژورنال: Nature Astronomy
سال: 2019
ISSN: 2397-3366
DOI: 10.1038/s41550-019-0942-5