A Comprehensive View of the 2006 December 13 CME: From the Sun to Interplanetary Space

Liu, Y.; Luhmann, J. G.; Müller‐Mellin, R.; Schroeder, P.; Wang, Linghua; Lin, R. P.; Bale, S. D.; Li, Y.; Acuña, M. H.; Sauvaud, J. A.

doi:10.1086/592031

Cited by 95 publications

(158 citation statements)

References 48 publications

Supporting

Mentioning

143

Contrasting

Order By: Relevance

“…The different passage times of the MC crossed by STEREO and ACE are listed in Table 1. The magnetic helicity of the MC is supposedly negative (Liu et al 2008), consistent with the predominant sense of the current helicity of AR 10930 deduced from Huairou vector magnetograms. Figure 1 presents observations from ACE, together with data from STEREO A and B (discussed later in this section).…”

Section: Diagnosis Of the Transverse Current Sheet In Interplanetary supporting

confidence: 79%

“…As reported by Liu et al (2008), the CME-related interplanetary counterpart had many of the typical characteristics of a magnetic cloud (MC) (Burlaga et al 1981). The MC was detected by multiple spacecraft observations, e.g.…”

Section: Diagnosis Of the Transverse Current Sheet In Interplanetary mentioning

confidence: 72%

“…The CME first appeared at 02:30 UT (Fig. 4a), and had been a nearly complete halo since 02:54 UT (see also Liu et al 2008). According to the LASCO CME catalog 1 , the X3.4 flare-associated CME has a projection speed of ≈1774 km s −1 and a deceleration of ≈61 m s −2 .…”

Section: Solar Surface Source Of Transverse Current Sheetmentioning

confidence: 99%

“…1 show the magnitude of the magnetic field and the three components B x , B y , and B z , in Geocentric Solar Magnetospheric, or GSM, coordinates. Combined Panels (a), (b) and (c), the CMErelated MC (gray interval "4") are said to have begun at about 22:40 UT on December 14 and connected to the Sun as indicated by BDEs (see also Liu et al 2008;Rosenvinge et al 2009). The magnetic structures between the shock sheath and the MC that also connected to the Sun as indicated by the BDEs were interpreted as signatures of nested magnetic loops overlying the MC flux rope by Gosling et al (1987).…”

Section: Diagnosis Of the Transverse Current Sheet In Interplanetary mentioning

confidence: 99%

“…This powerful eruptive event revealed many facets of this powerful eruptive event, including an extremely fast rotation of sunspots (Zhang et al 2007a), a powerful X3.4-class soft X-ray flare (Imada et al 2008) with associated changes in the photospheric magnetic field (Kubo et al 2007;Guo & Ding 2008;Jing et al 2008a;Jing et al 2008b), two kinds of blue-shifted phenomenon associated with the X3.4 flare (Asai et al 2008), a powerful radio burst indicating coronal structure changes (Yan et al 2007), and complicated processes of acceleration of low-and high-energy electrons (Ning 2008). The CMErelated interplanetary shocks, interplanetary ejecta that identified as magnetic cloud structures, and related solar wind structures have also been studied (e.g., Liu et al 2008;Kataoka et al 2009). These results provide important information for understanding the physical mechanism of the CME initiation and propagation.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A current sheet traced from the Sun to interplanetary space

Zhou

Xiao

Wang

et al. 2010

A&A

View full text Add to dashboard Cite

Context. Magnetic reconnection is a central concept for understanding solar activity, including filament eruptions, flares, and coronal mass ejections (CMEs). The existence of transverse and vertical current sheets, sites where reconnection takes place in the solar atmosphere, is frequently proposed as a precondition for flare/CME models, but is rarely identified in observations. Aims. We aim at identifying a transverse current sheet that existed in the pre-CME structure and persisted from the CME solar source to interplanetary space. Methods. STEREO A/B provide us a unique opportunity to calculate the interplanetary current sheets for the magnetic cloud. We analyze such a structure related to the fast halo CME of 2006 December 13 with assembled observations. A current sheet at the front of the magnetic cloud is analyzed to its origin in a transverse current sheet in the CME solar source, which can be revealed in the magnetic field extrapolations, XRT, and LASCO observations.Results. An interplanetary current sheet is identified as coming from the CME solar source by carefully mapping and examining multiple observations from the Sun to interplanetary space, along with nonlinear force-free magnetic field extrapolations of the active region NOAA 10930. Conclusions. The structure identified in the pre-flare state is a global transverse current sheet, which plays a role in the CME initiation, and propagates from the corona to interplanetary space.

show abstract

Section: Diagnosis Of the Transverse Current Sheet In Interplanetary supporting

confidence: 79%

Section: Diagnosis Of the Transverse Current Sheet In Interplanetary mentioning

confidence: 72%

Section: Solar Surface Source Of Transverse Current Sheetmentioning

confidence: 99%

Section: Diagnosis Of the Transverse Current Sheet In Interplanetary mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A current sheet traced from the Sun to interplanetary space

Zhou

Xiao

Wang

et al. 2010

A&A

View full text Add to dashboard Cite

show abstract

Intercalibration of GOES 8–15 solar proton detectors

2014

View full text Add to dashboard Cite

This work provides a relative intercalibration of the high-energy proton channels from the Energetic Particle Sensors (EPS) flown on the Geostationary Operational Environmental Satellites (GOES) since 1994 using a technique that depends on features that arise during high solar wind dynamic pressure. Based on observations of solar energetic protons from polar-orbiting and geostationary satellites (1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013), solar proton fluxes are isotropic at geostationary orbit during periods of high solar wind dynamic pressure (P dyn > 5 − 10 nPa). The observed isotropy results from the solar proton fluxes having rigidities (momenta per unit charge) greater than their geomagnetic cutoffs over the complete energy and angular responses of the satellite-borne detector. (The cutoff in a given direction is the rigidity below which an interplanetary particle cannot reach that location.) Under these conditions, we determine the relative responses of the EPS flown on GOES 8 through 15. These detectors are widely used for alerts of the radiation hazard posed to spacecraft and humans by solar energetic particle events; therefore, it is important to know their relative responses. The results of this low-scatter intercalibration analysis show that the relative responses agree to 20% or better (sometimes better than 1%). The effect of such relative calibration differences on the derived integral fluxes used by NOAA for its real-time solar radiation storm alerts is shown to be small (<10%). This method can be used to intercalibrate solar proton detectors of different design if their broad energy response functions are carefully accounted for.

show abstract

High‐latitude ionospheric equivalent currents during strong space storms: Regional perspective

et al. 2015

View full text Add to dashboard Cite

Geomagnetically induced currents (GIC) are a space weather phenomenon that can interfere with power transmission and even cause blackouts. The primary drivers of GIC can be represented as ionospheric equivalent currents. We used International Monitor for Auroral Geomagnetic Effects (IMAGE) magnetometer data from 1994–2013 to analyze the extreme behavior of the time derivative of the equivalent current density (|ΔJeq|/Δt) together with the occurrence of modeled GIC in the European high‐voltage power grids (1996–2008). Typically, when intense |ΔJeq|/Δt occurred, geomagnetic activity extended to latitudes <60°, Kp ≥ 8, and modeling suggested large GIC in the European high‐voltage power grids. Intense, although short‐lived, |ΔJeq|/Δt also occurred when geomagnetic activity was confined to latitudes >60°. In such cases, typically 5≤Kp<8, and modeling suggested that there were no large GIC in the European high‐voltage power grids. Intense |ΔJeq|/Δt and GIC occurred preferentially before midnight or at dawn and were rare after noon. There was a seasonal peak in October and a minimum around midsummer. Intense |ΔJeq|/Δt and GIC occurred preferentially in the declining phase of the solar cycle and were rare around solar minima. A longer perspective (1975–2013) was obtained by comparison with the time derivative of the magnetic field from the IMAGE station Nurmijärvi (NUR, MLAT ∼57°). NUR data indicated that the quietness of summer months may have been due to a coincidental lack of intense storms during the shorter period. NUR data agreed with the increased activity in the declining phase but demonstrated that extreme events could also occur during solar minima.

show abstract

A Comprehensive View of the 2006 December 13 CME: From the Sun to Interplanetary Space

Cited by 95 publications

References 48 publications

A current sheet traced from the Sun to interplanetary space

A current sheet traced from the Sun to interplanetary space

Intercalibration of GOES 8–15 solar proton detectors

High‐latitude ionospheric equivalent currents during strong space storms: Regional perspective

Contact Info

Product

Resources

About