Lifetime of intranetwork magnetic elements

Jun Zhang; Ganghua Lin; Jingxiu Wang; Haimin Wang; Harold Zirin

doi:10.1023/A:1005089432028

Lifetime of intranetwork magnetic elements

Jun Zhang, Ganghua Lin, Jingxiu Wang, Haimin Wang, Harold Zirin

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Using a 10-hour time sequence of very deep magnetograms of Big Bear Solar Observatory, we have studied the lifetime of Intranetwork Magnetic Elements for the first time. The analysis reveals the following results: (1) The lifetime of intranetwork elements ranges from 0.2 hr to 7.5 hr with the mean of 2.1 hr. There appears to be a quasi-linear dependence of the lifetime on the total flux of elements. (2) Most intranetwork elements appear as a cluster of mixed polarities from an emergence center somewhere within the network boundary and are destroyed by three mechanisms: merging with intranetwork or network elements of the same polarity, cancellation of opposite polarity elements, or separation and disappearance at the position where they appear. (3) We estimate that the total energy released from the recycling of IN elements is 1.6 × 10²⁸ ergs s^-1, which seems to be comparable to the energy required to heat the corona.

Original language	English (US)
Pages (from-to)	245-250
Number of pages	6
Journal	Solar Physics
Volume	178
Issue number	2
DOIs	https://doi.org/10.1023/A:1005089432028
State	Published - 1998

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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title = "Lifetime of intranetwork magnetic elements",

abstract = "Using a 10-hour time sequence of very deep magnetograms of Big Bear Solar Observatory, we have studied the lifetime of Intranetwork Magnetic Elements for the first time. The analysis reveals the following results: (1) The lifetime of intranetwork elements ranges from 0.2 hr to 7.5 hr with the mean of 2.1 hr. There appears to be a quasi-linear dependence of the lifetime on the total flux of elements. (2) Most intranetwork elements appear as a cluster of mixed polarities from an emergence center somewhere within the network boundary and are destroyed by three mechanisms: merging with intranetwork or network elements of the same polarity, cancellation of opposite polarity elements, or separation and disappearance at the position where they appear. (3) We estimate that the total energy released from the recycling of IN elements is 1.6 × 1028 ergs s-1, which seems to be comparable to the energy required to heat the corona.",

author = "Jun Zhang and Ganghua Lin and Jingxiu Wang and Haimin Wang and Harold Zirin",

note = "Funding Information: We would like to thank Drs Yuanyong Deng and Yunchun Jiang for many useful comments. This work is supported by the Major Project 19791090, funded by National Natural Science Foundation of China (NSFC), US NSF CAREER Award ATM-9628862 to Wang and NSF China–US collaboration grant INT-9603534.",

year = "1998",

doi = "10.1023/A:1005089432028",

language = "English (US)",

volume = "178",

pages = "245--250",

journal = "Solar Physics",

issn = "0038-0938",

publisher = "Springer Netherlands",

number = "2",

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TY - JOUR

T1 - Lifetime of intranetwork magnetic elements

AU - Zhang, Jun

AU - Lin, Ganghua

AU - Wang, Jingxiu

AU - Wang, Haimin

AU - Zirin, Harold

N1 - Funding Information: We would like to thank Drs Yuanyong Deng and Yunchun Jiang for many useful comments. This work is supported by the Major Project 19791090, funded by National Natural Science Foundation of China (NSFC), US NSF CAREER Award ATM-9628862 to Wang and NSF China–US collaboration grant INT-9603534.

PY - 1998

Y1 - 1998

N2 - Using a 10-hour time sequence of very deep magnetograms of Big Bear Solar Observatory, we have studied the lifetime of Intranetwork Magnetic Elements for the first time. The analysis reveals the following results: (1) The lifetime of intranetwork elements ranges from 0.2 hr to 7.5 hr with the mean of 2.1 hr. There appears to be a quasi-linear dependence of the lifetime on the total flux of elements. (2) Most intranetwork elements appear as a cluster of mixed polarities from an emergence center somewhere within the network boundary and are destroyed by three mechanisms: merging with intranetwork or network elements of the same polarity, cancellation of opposite polarity elements, or separation and disappearance at the position where they appear. (3) We estimate that the total energy released from the recycling of IN elements is 1.6 × 1028 ergs s-1, which seems to be comparable to the energy required to heat the corona.

AB - Using a 10-hour time sequence of very deep magnetograms of Big Bear Solar Observatory, we have studied the lifetime of Intranetwork Magnetic Elements for the first time. The analysis reveals the following results: (1) The lifetime of intranetwork elements ranges from 0.2 hr to 7.5 hr with the mean of 2.1 hr. There appears to be a quasi-linear dependence of the lifetime on the total flux of elements. (2) Most intranetwork elements appear as a cluster of mixed polarities from an emergence center somewhere within the network boundary and are destroyed by three mechanisms: merging with intranetwork or network elements of the same polarity, cancellation of opposite polarity elements, or separation and disappearance at the position where they appear. (3) We estimate that the total energy released from the recycling of IN elements is 1.6 × 1028 ergs s-1, which seems to be comparable to the energy required to heat the corona.

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DO - 10.1023/A:1005089432028

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SN - 0038-0938

VL - 178

SP - 245

EP - 250

JO - Solar Physics

JF - Solar Physics

IS - 2

ER -

Lifetime of intranetwork magnetic elements

Abstract

All Science Journal Classification (ASJC) codes

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