Continuous plasma outflows from the edge of a solar active region as a possible source of solar wind

被引：190

作者：

Sakao, Taro

Kano, Ryouhei

Narukage, Noriyuki

Kotoku, Jun'ichi

Bando, Takamasa

DeLuca, Edward E.

Lundquist, Loraine L.

Tsuneta, Saku

Harra, Louise K.

Katsukawa, Yukio

Kubo, Masahito

Hara, Hirohisa

Matsuzaki, Keiichi

Shimojo, Masumi

Bookbinder, Jay A.

Golub, Leon

Korreck, Kelly E.

Su, Yingna

Shibasaki, Kiyoto

Shimizu, Toshifumi

Nakatani, Ichiro

机构：

[1] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan

[2] Natl Astron Observ Japan, Tokyo 1818588, Japan

[3] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[4] UCL, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[5] Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80307 USA

[6] NAOJ, Nobeyama Radio Observ, Minamisa Ku, Nagano 3841305, Japan

来源：

SCIENCE | 2007年 / 318卷 / 5856期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1126/science.1147292

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Sun continuously expels a huge amount of ionized material into interplanetary space as the solar wind. Despite its influence on the heliospheric environment, the origin of the solar wind has yet to be well identified. In this paper, we report Hinode X-ray Telescope observations of a solar active region. At the edge of the active region, located adjacent to a coronal hole, a pattern of continuous outflow of soft-x-ray-emitting plasmas was identified emanating along apparently open magnetic field lines and into the upper corona. Estimates of temperature and density for the outflowing plasmas suggest a mass loss rate that amounts to similar to 1/4 of the total mass loss rate of the solar wind. These outflows may be indicative of one of the solar wind sources at the Sun.

引用

页码：1585 / 1588

页数：4

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