A magnetic cloud containing prominence material: January 1997

Burlaga, L. F.; Fitzenreiter, R. J.; Lepping, R. P.; Ogilvie, K. W.; Szabó, Á.; Lazarus, A. J.; Steinberg, J. T.; Gloeckler, G.; Howard, R. A.; Michels, D. J.; Farrugia, C. J.; Lin, R. P.; Larson, D. E.

doi:10.1029/97ja02768

Cited by 263 publications

(163 citation statements)

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“…This timing implies an average shock speed through the IPM of 500 km/s. The CME, with characteristics of a magnetic cloud, was observed from -05:00 UT on Jan. 10 to -01:00 UT on Jan. 11 [Burlaga et al, 1997]. Figure 1 shows a dynamic spectrum of the observed radio intensity plotted as a function of the inverse of the frequency and of time.…”

Section: Instrumentationmentioning

confidence: 99%

“…The extraordinary density pulse (-190 cm -3) observed at -02:00 UT on Jan. 11 was treated somewhat differently. This density pulse is believed to represent a combination of prominence material located just behind the CME superposed on a CIR that is pushing into the rear of the CME [Burlaga et al, 1997]. The density pulse is not a part of the corotating structure so it was removed before constructing the iso-frequency contour.…”

Section: Origin Of the Type II Radio Emissionsmentioning

confidence: 99%

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On the origin of radio emissions associated with the January 6–11, 1997, CME

Reiner¹,

Kaiser

Fainberg

et al. 1998

Geophysical Research Letters

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Abstract. Unusual type II radio emissions were generated by an Earth-directed CME that originated at the sun on Jan. 6, 1997. The intensities of the observed radio emissions were significantly higher than for typical type II events, while the source sizes and the overall frequency drift rate were significantly smaller. By introducing a new way of presenting the radio data that inherently reveals the dynamics of the type II radio source, we used these type II radio emissions, observed by the WAVES experiment on Wind, to track this CME through the interplanetary medium (IPM). From an analysis of the observed frequencies, the frequency drift rates and the results of the Wind radio direction finding, we were able to identify specific interplanetary structures such as a CIR that were the probable sources of at least some of the type II radio emissions associated with this event. This is the first time that type II emissions have been traced to specific interplanetary structures.

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Section: Instrumentationmentioning

confidence: 99%

Section: Origin Of the Type II Radio Emissionsmentioning

confidence: 99%

On the origin of radio emissions associated with the January 6–11, 1997, CME

Reiner¹,

Kaiser

Fainberg

et al. 1998

Geophysical Research Letters

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“…There is usually no difficulty in identifying the shock with respect to the magnetic cloud, so we do not discuss them further. In this letter, we use CME and MC obser- January 6-11 CME-MC [Burlaga et al, 1998]. In the next section, we shall see that this pressure pulse corresponds to the prominence core that lags behind the CME frontal structure.…”

Section: Introductionmentioning

confidence: 99%

On the relationship between coronal mass ejections and magnetic clouds

Gopalswamy

Hanaoka

Kosugi

et al. 1998

Geophysical Research Letters

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Abstract.We compare the substructures of the 1997February 07 coronal mass ejection (CME) observed near the Sun with a corresponding event in the interplanetary medium to determine the origin of magnetic clouds (MCs).We find that the eruptive prominence core of the CME observed near the Sun may not directly become a magnetic cloud as suggested by some authors and that it might instead become the "pressure pulse" following the magnetic cloud. We substantiate our conclusions using time of arrival, size and composition estimates of the CME-MC substructures obtained from ground based, SOHO and WIND observations.

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“…Documented examples include multiple interfaces trailing the October 1995 cloud (8) and an interface preceded by extmrdhady high density plasma from an erupting filament trailing the January 1997 cloud (9). The stippled interval in Figure.…”

Section: Interfaces Trailing Magnetic Cloudsmentioning

confidence: 99%