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Originally posted by trueforger
Is it snide or insulting to point out that Old Sol has been uncommonly quiet for months?
astro-ph/9901279 (January 1999) Consequences of a Change in the Galactic Environment of the Sun Gary P. Zank and Priscilla C. Frisch Bartol Research Institute, University of Delaware, Newark, DE 19716 Currently at the University of California, Berkeley Astronomy Department, Berkeley, California 94720-3411 Department of Astronomy and Astrophysics, University of Chicago, IL 60637 Received. 20 January 1999 Last updated. 20 January 1999 Abstract. The interaction of the heliosphere with interstellar clouds has attracted interest since the late 1920's, both with a view to explaining apparent quasi-periodic climate "catastrophes" as well as periodic mass extinctions. Until recently, however, models describing the solar wind - local interstellar medium (LISM) interaction self-consistently had not been developed. Here, we describe the results of a two-dimensional (2D) simulation of the interaction between the heliosphere and an interstellar cloud with the same properties as currently, except that the neutral H density is increased from the present value of n(H) ~ 0.2 cm^-3 to 10 cm^-3. The mutual interaction of interstellar neutral hydrogen and plasma is included. The heliospheric cavity is reduced considerably in size (approximately 10 - 14 AU to the termination shock in the upstream direction) and is highly dynamical. The interplanetary environment at the orbit of the Earth changes markedly, with the density of interstellar H increasing to ~2 cm^-3. The termination shock itself experiences periods where it disappears, reforms and disappears again. Considerable mixing of the shocked solar wind and LISM occurs due to Rayleigh-Taylor-like instabilities at the nose, driven by ion-neutral friction. Implications for two anomalously high concentrations of 10Be found in Antarctic ice cores 33 kya and 60 kya, and the absence of prior similar events, are discussed in terms of density enhancements in the surrounding interstellar cloud. The calculation presented here supports past speculation that the galactic environment of the Sun moderates the interplanetary environment at the orbit of the Earth, and possibly also the terrestrial climate.
Originally posted by cronotrigger30
i personally think everyone has blown this out of proportion theres bin x flares before and nothing happened everyones freaking out over some crop circle photos that are on a website that is all about making money off of peoples fascination with crop circles nothing is happening except the sun starting its cycle so stop worrying about the end of mankind and enjoy life seriously -_-