J/ApJS/169/439 Models of solar magnetic structures (Socas-Navarro, 2007)
Semiempirical models of solar magnetic structures.
Socas-Navarro H.
<Astrophys. J. Suppl. Ser., 169, 439-457 (2007)>
=2007ApJS..169..439S 2007ApJS..169..439S
ADC_Keywords: Models, atmosphere ; Sun ; Magnetic fields
Keywords: line: profiles - Sun: atmosphere - Sun: chromosphere -
Sun: magnetic fields
Abstract:
This paper presents semiempirical models of various solar magnetic
structures, extending from the photosphere to the chromosphere. The
models have been derived from non-LTE inversions of high-resolution
spectropolarimetric observations of four CaII and FeI lines. The
observed targets are dark and bright components of a sunspot umbra;
dark and bright components of a sunspot penumbra; a canopy between two
sunspots; a facula; and a network element. These models may be
employed, e.g., to compute realistic synthetic Stokes spectra of
photospheric and chromospheric lines.
Description:
The observations used in this work were acquired with the new
Spectro-Polarimeter for Infrared and Optical Regions (SPINOR;
Socas-Navarro et al., 2006SoPh..235...55S 2006SoPh..235...55S) on 2004 June 16. The data
set includes two chromospheric lines of the CaII infrared triplet at
849.8 and 854.2nm, recorded by two different cameras, as well as two
nearby FeI lines at 849.7 and 853.8nm.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 93 60 Model A. Stray light fraction: 0.06
table6.dat 93 60 Model B. Stray light fraction: 0.05
table7.dat 93 60 Model C. Stray light fraction: 0.23
table8.dat 93 60 Model D. Stray light fraction: 0.27
table9.dat 93 60 Model E. Stray light fraction: 0.43
table10.dat 93 60 Model F. Stray light fraction: 0.55
table11.dat 93 60 Model G. Stray light fraction: 0.29
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See also:
J/A+A/374/265 : LTE spectrum synthesis in magnetic atmospheres (Wade+, 2001)
J/A+AS/110/329 : LTE model atmospheres coeff. (Diaz-cordoves+, 1995)
J/A+A/274/555 : Asymmetry of FeI lines in solar spectrum (Stathopoulou+ 1993)
Byte-by-byte Description of file: table*.dat
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Bytes Format Units Label Explanations
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1- 4 F4.1 [-] log.tau Log of the optical depth at 500nm
6- 14 F9.4 km z Height above surface (tau=1)
16- 22 F7.1 K Temp Temperature
24- 34 E11.5 g/cm3 Den Density
36- 48 F13.6 dPa Pgas Gas pressure (dPa = dyn/cm2)
50- 60 F11.8 dPa Pel Electron pressure (dPa = dyn/cm2)
62- 75 F14.6 cm/s Vel Line-of-sight velocity (1)
77- 84 F8.3 10-4T Bfield Magnetic field (in Gauss)
86- 93 F8.4 deg Inc Inclination
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Note (1): Defined following the usual Astrophysical convention, in which
negative (positive) velocities are towards (away from) the observer.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 30-Apr-2009