Record-breaking Coronal Magnetic Field in Solar Active Region 12673

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Record-breaking Coronal Magnetic Field in Solar Active Region 12673. / Anfinogentov, Sergey A.; Mysh’yakov, Ivan I.; Fleishman, Gregory D.; Stupishin, Alexey G.

In: Astrophysical Journal Letters, Vol. 880, No. 2, L29, 01.08.2019.

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

Author

Anfinogentov, Sergey A. ; Mysh’yakov, Ivan I. ; Fleishman, Gregory D. ; Stupishin, Alexey G. / Record-breaking Coronal Magnetic Field in Solar Active Region 12673. In: Astrophysical Journal Letters. 2019 ; Vol. 880, No. 2.

BibTeX

@article{6926c395a9714b16b0be6f74cd26d84f,

title = "Record-breaking Coronal Magnetic Field in Solar Active Region 12673",

abstract = "The strongest magnetic fields on the Sun are routinely detected at dark sunspots. The magnitude of the field is typically about 3000 G, with only a few exceptions that reported the magnetic field in excess of 5000 G. Given that the magnetic field decreases with height in the solar atmosphere, no coronal magnetic field above similar to 2000 G has ever been reported. Here, we present imaging microwave observations of anomalously strong magnetic field of about 4000 G at the base of the corona in solar active region NOAA 12673 on 2017 September 6. Combining the photospheric vector measurements of the magnetic field and the coronal probing, we created and validated a nonlinear force-free field coronal model, with which we quantify the record-breaking coronal magnetic field at various coronal heights.",

keywords = "Sun: corona, Sun: magnetic fields, Sun: radio radiation, SUNSPOTS, MISSION",

author = "Anfinogentov, {Sergey A.} and Mysh{\textquoteright}yakov, {Ivan I.} and Fleishman, {Gregory D.} and Stupishin, {Alexey G.}",

year = "2019",

month = aug,

day = "1",

doi = "10.3847/2041-8213/ab3042",

language = "English",

volume = "880",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "IOP Publishing Ltd.",

number = "2",

}

RIS

TY - JOUR

T1 - Record-breaking Coronal Magnetic Field in Solar Active Region 12673

AU - Anfinogentov, Sergey A.

AU - Mysh’yakov, Ivan I.

AU - Fleishman, Gregory D.

AU - Stupishin, Alexey G.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - The strongest magnetic fields on the Sun are routinely detected at dark sunspots. The magnitude of the field is typically about 3000 G, with only a few exceptions that reported the magnetic field in excess of 5000 G. Given that the magnetic field decreases with height in the solar atmosphere, no coronal magnetic field above similar to 2000 G has ever been reported. Here, we present imaging microwave observations of anomalously strong magnetic field of about 4000 G at the base of the corona in solar active region NOAA 12673 on 2017 September 6. Combining the photospheric vector measurements of the magnetic field and the coronal probing, we created and validated a nonlinear force-free field coronal model, with which we quantify the record-breaking coronal magnetic field at various coronal heights.

AB - The strongest magnetic fields on the Sun are routinely detected at dark sunspots. The magnitude of the field is typically about 3000 G, with only a few exceptions that reported the magnetic field in excess of 5000 G. Given that the magnetic field decreases with height in the solar atmosphere, no coronal magnetic field above similar to 2000 G has ever been reported. Here, we present imaging microwave observations of anomalously strong magnetic field of about 4000 G at the base of the corona in solar active region NOAA 12673 on 2017 September 6. Combining the photospheric vector measurements of the magnetic field and the coronal probing, we created and validated a nonlinear force-free field coronal model, with which we quantify the record-breaking coronal magnetic field at various coronal heights.

KW - Sun: corona

KW - Sun: magnetic fields

KW - Sun: radio radiation

KW - SUNSPOTS

KW - MISSION

UR - http://www.scopus.com/inward/record.url?scp=85071112414&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/recordbreaking-coronal-magnetic-field-solar-active-region-12673

U2 - 10.3847/2041-8213/ab3042

DO - 10.3847/2041-8213/ab3042

M3 - Article

VL - 880

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

SN - 2041-8205

IS - 2

M1 - L29

ER -

ID: 45738886