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@inproceedings{1550109, author = {Mikulášek, Zdeněk and Krtička, Jiří and Henry, Gregor and Janík, Jan and Pigulski, Andrzej}, address = {SAN FRANCISCO}, booktitle = {Astronomical Society of the Pacific Conference Series}, edition = {518}, editor = {Romanyuk, II; Yakunin, IA; Kudryavtsev, DO}, keywords = {magnetic chemically peculiar stars; CU Virginis}, howpublished = {tištěná verze "print"}, language = {eng}, location = {SAN FRANCISCO}, isbn = {978-1-58381-924-1}, pages = {125-130}, publisher = {ASTRONOMICAL SOC PACIFIC}, title = {Towards Comprehension of the Variability of the mCP Star CU Virginis}, year = {2019} }
TY - JOUR ID - 1550109 AU - Mikulášek, Zdeněk - Krtička, Jiří - Henry, Gregor - Janík, Jan - Pigulski, Andrzej PY - 2019 TI - Towards Comprehension of the Variability of the mCP Star CU Virginis PB - ASTRONOMICAL SOC PACIFIC CY - SAN FRANCISCO SN - 9781583819241 KW - magnetic chemically peculiar stars KW - CU Virginis N2 - The magnetic chemically peculiar (mCP) star CU Virginis is the most enigmatic star among upper main sequence stars. It is an unusually fast rotator showing strictly periodic light variations in all regions of the electromagnetic spectrum, as well as spectroscopic and spectropolarimetric changes. At the same time, it is also the first main-sequence radio pulsar. Exploiting information hidden in phase variations, we monitored the secular oscillation of the rotational period during the last 53 years. Applying our own phenomenological approach, we analyzed 37 975 individual photometric and spectroscopic measurements from 72 data sources and improved the O-C model. All the relevant observations indicate that the secular period variations can be well approximated by a 5th degree polynomial. The outer surface, "fastened" by the global magnetic field, seems to be stable for decades as shown by the constancy of the mutual location of different phase tracers on the stellar surface. ER -
MIKULÁŠEK, Zdeněk, Jiří KRTIČKA, Gregor HENRY, Jan JANÍK a Andrzej PIGULSKI. Towards Comprehension of the Variability of the mCP Star CU Virginis. In Romanyuk, II; Yakunin, IA; Kudryavtsev, DO. \textit{Astronomical Society of the Pacific Conference Series}. 518. vyd. SAN FRANCISCO: ASTRONOMICAL SOC PACIFIC, 2019, s.~125-130. ISBN~978-1-58381-924-1.
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