Abstract
We present the preliminary results of the measurements of longitudinal magnetic field of the massive white dwarf 1658+441. This star have an hydrogen pure atmosphere (e.g. Dupuis & Chayer, 2003). We have observed the target in a total of 18 hrs during 3 consecutive nights in June 2010 and one more in May 2011. The data was acquired with a prototypical spectropolarimeter at the San Pedro Martir Telescope in Mexico. We have tested the magnetic field measurements with our instrument using the famous Babcock's star obtaining consistent results with previous studies. For our object of study, the WD 1658+441, we have measured variable intensities of the longitudinal magnetic field of Blong = 720 kG that oscillates with an amplitude of 130 kG. © International Astronomical Union 2014.
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Vélez, J. R., Hiriart, D., Valyavin, G., Valdez, J., Quiroz, F., Martínez, B., … Iñiguez-Garín, E. (2014). Measurements of the magnetic field in WD 1658+441. Proceedings of the International Astronomical Union, 9(S302), 402–403. https://doi.org/10.1017/S1743921314002610
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