Artículo
Bertucci, C.; Achilleos, N.; Dougherty, M.K.; Modolo, R.; Coates, A.J.; Szego, K.; Masters, A.; Ma, Y.; Neubauer, F.M.; Garnier, P.; Wahlund, J.-E.; Young, D.T. "The magnetic memory of Titan's ionized atmosphere" (2008) Science. 321(5895):1475-1478
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Abstract:
After 3 years and 31 close flybys of Titan by the Cassini Orbiter, Titan was finally observed in the shocked solar wind, outside of Saturn's magnetosphere. These observations revealed that Titan's flow-induced magnetosphere was populated by "fossil" fields originating from Saturn, to which the satellite was exposed before its excursion through the magnetopause. In addition, strong magnetic shear observed at the edge of Titan's induced magnetosphere suggests that reconnection may have been involved in the replacement of the fossil fields by the interplanetary magnetic field.
Registro:
| Documento: | Artículo |
| Título: | The magnetic memory of Titan's ionized atmosphere |
| Autor: | Bertucci, C.; Achilleos, N.; Dougherty, M.K.; Modolo, R.; Coates, A.J.; Szego, K.; Masters, A.; Ma, Y.; Neubauer, F.M.; Garnier, P.; Wahlund, J.-E.; Young, D.T. |
| Filiación: | Space and Atmospheric Physics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, United Kingdom Atmospheric Physics Laboratory, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom Centre for Planetary Sciences, University College London, United Kingdom Department of Physics and Astronomy, University of Iowa, 613 Van Allen Hall, Iowa City, IA 52242-1479, United States Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, United Kingdom KFKI Research Institute for Particle and Nuclear Physics, Building III, Konkoly Thege Street 29-33, H-1121 Budapest, Hungary Institute of Geophysics and Planetary Physics, University of California Los Angeles, Los Angeles, CA 90025, United States Institute for Geophysics and Meterology, Köln University, 50923 Köln, Germany Swedish Institute of Space Physics, Box 537, SE-751 21 Uppsala, Sweden Southwest Research Institute, Post Office Box 28510, San Antonio, TX 78227-1301, United States Instituto de Astronomica Y Fisica del Espacio, Ciudad Universitaria, Buenos Aires, Argentina |
| Palabras clave: | magnetic field; magnetopause; magnetosphere; planetary atmosphere; Saturn; solar wind; Titan; article; atmosphere; geometry; magnetic field; magnetism; priority journal |
| Año: | 2008 |
| Volumen: | 321 |
| Número: | 5895 |
| Página de inicio: | 1475 |
| Página de fin: | 1478 |
| DOI: | http://dx.doi.org/10.1126/science.1159780 |
| Título revista: | Science |
| Título revista abreviado: | Science |
| ISSN: | 00368075 |
| CODEN: | SCIEA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00368075_v321_n5895_p1475_Bertucci |
Referencias:
- Neubauer, F.M., Gurnett, D.A., Scudder, J.D., Hartle, R.E., (1984) Saturn, pp. 760-787. , T. Gehrels, M. S. Matthews, Eds, Univ. of Arizona Press, Tucson, AZ
- Wahlund, J.-E., (2005) Science, 308, p. 986
- Ness, N.F., Acuña, M.H., Behannon, K.W., (1982) J. Geophys. Res, 87, p. 1369
- Backes, H., (2005) Science, 308, p. 992
- Szego, K., (2007) Geophys. Res. Lett, 34, pp. L24S03
- Kivelson, M.G., (2006) Science, 311, p. 1391
- SLT is measured from the noon meridian in the direction of Saturn's rotation; PSW = ρv2, where ρ and v, , are the solar wind density and speed, respectively
- All times are expressed in UT; Dougherty, M.K., (2004) Space Sci. Rev, 114, p. 331
- In the Saturn-centered spherical solar magnetic coordinate system (KSMAG, the polar axis coincides with planet's magnetic axis and λKSMAG and φKSMAG are, respectively, the magnetic field latitude and azimuth φKSMAG, 0 corresponds to the magnetic noon meridian; RMP = PSW -1/4.3, where RMP is the magnetopause's standoff distance; Arridge, C.S., (2006) J. Geophys. Res, 111, pp. A11227
- Masters, A., (2008) J. Geophys. Res, , 10.1029/2008JA013276
- Gurnett, D.A., (2004) Space Sci. Rev, 114, p. 395
- Young, D.T., (2004) Space Sci. Rev, 114, p. 1
- In the Titan-centered spherical ionospheric interaction coordinate system (TIIS, the equatorial plane contains the direction to Saturn (Y TIIS) and that of the nominal corotation flow (X TIIS, λTIIS and φTIIS are, respectively, the latitude and azimuth measured from XTIIS toward YTIIS; McAndrews, H.J., (2008) J. Geophys. Res, 113, pp. A04210
- Hartle, R.E., (2006) Geophys. Res. Lett, 33, pp. L08201
- H. Backes, thesis, University of Cologne, Germany (2005); Niedner, M.B., Brandt, J.C., (1978) Astrophys. J, 223, p. 655
- Coates, A.J., (2007) Geophys. Res. Lett, 34, pp. L24S05
- We thank A. Balogh, T. Horbury, W. S. Kurth, C. Mazelle, S. J. Schwartz, and C. T. Russell for useful discussions, and N. Powell for artwork. C.B. was supported by a Science and Technology Facilities Council Postdoctoral Fellowship
Citas:
---------- APA ----------
Bertucci, C., Achilleos, N., Dougherty, M.K., Modolo, R., Coates, A.J., Szego, K., Masters, A.,..., Young, D.T. (2008) . The magnetic memory of Titan's ionized atmosphere. Science, 321(5895), 1475-1478.http://dx.doi.org/10.1126/science.1159780
---------- CHICAGO ----------
Bertucci, C., Achilleos, N., Dougherty, M.K., Modolo, R., Coates, A.J., Szego, K., et al. "The magnetic memory of Titan's ionized atmosphere" . Science 321, no. 5895 (2008) : 1475-1478.http://dx.doi.org/10.1126/science.1159780
---------- MLA ----------
Bertucci, C., Achilleos, N., Dougherty, M.K., Modolo, R., Coates, A.J., Szego, K., et al. "The magnetic memory of Titan's ionized atmosphere" . Science, vol. 321, no. 5895, 2008, pp. 1475-1478.http://dx.doi.org/10.1126/science.1159780
---------- VANCOUVER ----------
Bertucci, C., Achilleos, N., Dougherty, M.K., Modolo, R., Coates, A.J., Szego, K., et al. The magnetic memory of Titan's ionized atmosphere. Science. 2008;321(5895):1475-1478.http://dx.doi.org/10.1126/science.1159780
