On magnetic field gradients in sunspots |
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| Affiliation: | 1. Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China;2. College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China;3. National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, 210095, China;1. Emory University, Department of Epidemiology and Laney Graduate School, Atlanta, GA, United States;2. Emory University, Rollins School of Public Health, Department of Behavioral Sciences and Health Education, and Division of Infectious Diseases, Department of Medicine, Atlanta, GA, United States;3. Emory University, Rollins School of Public Health, Hubert Department of Global Health, Atlanta, GA, United States;4. Emory University, Rollins School of Public Health, Department of Epidemiology, Atlanta, GA, United States;5. Emory University, School of Medicine, Department of Gynecology and Obstetrics, Atlanta, GA, United States;6. University of Kansas Medical Center, Department of Obstetrics and Gynecology, Kansas City, KS, United States;7. Emory University, Emory Vaccine Center and School of Medicine, Atlanta, GA, United States;8. Emory University, Department of Pediatrics, Atlanta, GA, United States;1. Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, CNR Room 3040Z, Atlanta, GA 30322, USA;2. Division of Infectious Diseases, School of Medicine, Emory University, 1462 Clifton Rd. NE, Room 446, Atlanta, GA 30322, USA;3. Department of Gynecology and Obstetrics, School of Medicine, Emory University, 1365 Clifton Road, Building A, 4th Floor, Atlanta, GA 30322, USA;4. Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, GCR Room 472, Atlanta, GA 30322, USA;5. Department of Medicine, Division of Infectious Diseases, 500 Irvin Court, Decatur, GA 30030, USA;6. Hubert Department of Global Health, Rollins School of Public Health, 1518 Clifton Road NE, Atlanta, GA 30322, USA;7. Department of Epidemiology, Rollins School of Public Health, 1518 Clifton Rd. NE, CNR Room 3047, Atlanta, GA 30322, USA;8. Department of Epidemiology, Rollins School of Public Health, 1518 Clifton Road NE, CNR Room 3045, Atlanta, GA 30322, USA;9. Hubert Department of Global Health, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, CNR Room 7017, Atlanta, GA 30322, USA;1. Department of Anthropology, University of California Riverside, 900 University Ave., Riverside, CA 92521, USA;2. Department of Anthropology, University of Miami, 900 University Ave., Riverside, CA 92521, USA;3. Department of Earth Sciences, University of California Riverside, 900 University Ave., Riverside, CA 92521, USA;4. NCALM, University of Houston, 5000 Gulf Freeway, Houston, TX 77204-5059, USA;5. CHEI, 2109 Atkinson Hall, University of California San Diego, La Jolla, CA 92093-0436, USA;6. Cultural Heritage and Archaeology in the Maya Area, 4005 Hampden St., Kensington, MD 20895, USA;7. Instituto Nacional de Antropología e Historia, Av. Revolución 1900, Tizapán San Ángel, San Ángel, Ciudad de México, CDMX, CP 01000, Mexico |
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| Abstract: | This paper is devoted mainly to a method of determining the gradient of magnetic fields. Utilizing the numerical solution of the equations of transfer of the Stokes parameters, we have calculated quantities characterizing the asymmetry and the amount of rotation of the wings of the “o” and “e” profiles of the magnetically sensitive line Fe Iλ 6302.499 as functions of the magnetic field gradient. The results of calculations have been verified with our own spectrophotometric observations of a large sunspot. The range of validity of the method is discussed, and the possible influence of the presence of magnetic field gradients on the observational data of magnetographs is investigated. |
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