Research output: Contribution to journal › Article
The relationship between chromospheric emission and magnetic field strength. / Loukitcheva, M.; Solanki, S.K.; White, S.M.
In: Astronomy and Astrophysics, Vol. 497, No. 1, 2009, p. 273-285.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The relationship between chromospheric emission and magnetic field strength
AU - Loukitcheva, M.
AU - Solanki, S.K.
AU - White, S.M.
PY - 2009
Y1 - 2009
N2 - Aims. We analyze observational data from 4 instruments to study the correlations between chromospheric emission, spanning the heights from the temperature minimum region to the middle chromosphere, and photospheric magnetic field. Methods. The data consist of radio images at 3.5 mm from the Berkeley-Illinois-Maryland Array (BIMA), UV images at 1600 Å from TRACE, Call K-line filtergrams from BBSO, and MDI/SOHO longitudinal photospheric magnetograms. For the first time interferometric millimeter data with the highest currently available resolution are included in such an analysis. We determine various parameters of the intensity maps and correlate the intensities with each other and with the magnetic field. Results. The chromospheric diagnostics studied here show a pronounced similarity in their brightness structures and map out the underlying photospheric magnetic field relatively well. We find a power law to be a good representation of the relationship between photospheric magnetic field and emission from chr
AB - Aims. We analyze observational data from 4 instruments to study the correlations between chromospheric emission, spanning the heights from the temperature minimum region to the middle chromosphere, and photospheric magnetic field. Methods. The data consist of radio images at 3.5 mm from the Berkeley-Illinois-Maryland Array (BIMA), UV images at 1600 Å from TRACE, Call K-line filtergrams from BBSO, and MDI/SOHO longitudinal photospheric magnetograms. For the first time interferometric millimeter data with the highest currently available resolution are included in such an analysis. We determine various parameters of the intensity maps and correlate the intensities with each other and with the magnetic field. Results. The chromospheric diagnostics studied here show a pronounced similarity in their brightness structures and map out the underlying photospheric magnetic field relatively well. We find a power law to be a good representation of the relationship between photospheric magnetic field and emission from chr
U2 - DOI: 10.1051/0004-6361/200811133
DO - DOI: 10.1051/0004-6361/200811133
M3 - Article
VL - 497
SP - 273
EP - 285
JO - ASTRONOMY & ASTROPHYSICS
JF - ASTRONOMY & ASTROPHYSICS
SN - 0004-6361
IS - 1
ER -
ID: 5093112