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Harra, L.K.; Sakao, T.; Mandrini, C.H.; Hara, H.; Imada, S.; Young, P.R.; Van Driel-Gesztelyi, L.; Baker, D. "Outflows at the edges of active regions: Contribution to solar wind formation?" (2008) Astrophysical Journal. 676(2 PART 2):L147-L150
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Abstract:

The formation of the slow solar wind has been debated for many years. In this Letter we show evidence of persistent outflow at the edges of an active region as measured by the EUV Imaging Spectrometer on board Hinode. The Doppler velocity ranged between 20 and 50 km s -1 and was consistent with a steady flow seen in the X-Ray Telescope. The latter showed steady, pulsing outflowing material and some transverse motions of the loops. We analyze the magnetic field around the active region and produce a coronal magnetic field model. We determine from, the latter that the outflow speeds adjusted for line-of-sight effects can reach over 100 km s -1 . We can interpret this outflow as expansion of loops that lie over the active region, which may either reconnect with neighboring large-scale loops or are likely to open to the interplanetary space. This material constitutes at least part of the slow solar wind. © 2008. The American Astronomical Society. All rights reserved.

Registro:

Documento: Artículo
Título:Outflows at the edges of active regions: Contribution to solar wind formation?
Autor:Harra, L.K.; Sakao, T.; Mandrini, C.H.; Hara, H.; Imada, S.; Young, P.R.; Van Driel-Gesztelyi, L.; Baker, D.
Filiación:UCL-Mullard Space Science Laboratory, Holmbury St. Mary, Dorking, Surrey RH5 6NT, United Kingdom
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
Instituto de Astronomía y Física Del Espacio, CONICET-UBA, CC. 67, Suc. 28, 1428 Buenos Aires, Argentina
National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan
STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire 0X11 0QX, United Kingdom
Palabras clave:Solar wind
Año:2008
Volumen:676
Número:2 PART 2
Página de inicio:L147
Página de fin:L150
DOI: http://dx.doi.org/10.1086/587485
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v676_n2PART2_pL147_Harra

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Citas:

---------- APA ----------
Harra, L.K., Sakao, T., Mandrini, C.H., Hara, H., Imada, S., Young, P.R., Van Driel-Gesztelyi, L.,..., Baker, D. (2008) . Outflows at the edges of active regions: Contribution to solar wind formation?. Astrophysical Journal, 676(2 PART 2), L147-L150.
http://dx.doi.org/10.1086/587485
---------- CHICAGO ----------
Harra, L.K., Sakao, T., Mandrini, C.H., Hara, H., Imada, S., Young, P.R., et al. "Outflows at the edges of active regions: Contribution to solar wind formation?" . Astrophysical Journal 676, no. 2 PART 2 (2008) : L147-L150.
http://dx.doi.org/10.1086/587485
---------- MLA ----------
Harra, L.K., Sakao, T., Mandrini, C.H., Hara, H., Imada, S., Young, P.R., et al. "Outflows at the edges of active regions: Contribution to solar wind formation?" . Astrophysical Journal, vol. 676, no. 2 PART 2, 2008, pp. L147-L150.
http://dx.doi.org/10.1086/587485
---------- VANCOUVER ----------
Harra, L.K., Sakao, T., Mandrini, C.H., Hara, H., Imada, S., Young, P.R., et al. Outflows at the edges of active regions: Contribution to solar wind formation?. Astrophys. J. 2008;676(2 PART 2):L147-L150.
http://dx.doi.org/10.1086/587485