Simultaneous ground-based and in situ Swarm observations of equatorial F-region irregularities over Jicamarca

Autor: S. Aol, S. Buchert, E. Jurua, M. Milla

Publikováno v: Annales Geophysicae, Vol 38, Pp 1063-1080 (2020)

Ionospheric irregularities are a common phenomenon in the low-latitude ionosphere. They can be seen in situ as depletions of plasma density, radar plasma plumes, or ionogram spread F by ionosondes. In this paper, we compared simultaneous observations

Externí odkaz: https://doaj.org/article/04ae077e81b34e648f0fc7e08a82e19e

Modeling of GPS total electron content over the African low-latitude region using empirical orthogonal functions

Autor: G. Andima, E. B. Amabayo, E. Jurua, P. J. Cilliers

Publikováno v: Annales Geophysicae, Vol 37, Pp 65-76 (2019)

In this paper, an empirical total electron content (TEC) model and trends in the TEC over the African low-latitude region are presented. GPS-derived TEC data from Malindi, Kenya (geographic coordinates 40.194∘ E, 2.996∘ S), and global ionosph

Externí odkaz: https://doaj.org/article/fb43b9ce4a324a418a63008657833281

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Study of chemically peculiar stars – I. High-resolution spectroscopy and K2 photometry of Am stars in the region of M44

Autor: Santosh Joshi, Otto Trust, E Semenko, P E Williams, P Lampens, P De Cat, L Vermeylen, D L Holdsworth, R A García, S Mathur, A R G Santos, D Mkrtichian, A Goswami, M Cuntz, A P Yadav, M Sarkar, B C Bhatt, F Kahraman Aliçavuş, M D Nhlapo, M N Lund, P P Goswami, I Savanov, A Jorissen, E Jurua, E Avvakumova, E S Dmitrienko, N K Chakradhari, M K Das, S Chowdhury, O P Abedigamba, I Yakunin, B Letarte, D Karinkuzhi

Publikováno v: Joshi, S, Trust, O, Semenko, E, Williams, P E, Lampens, P, De Cat, P, Vermeylen, L, Holdsworth, D L, García, R A, Mathur, S, Santos, A R G, Mkrtichian, D, Goswami, A, Cuntz, M, Yadav, A P, Sarkar, M, Bhatt, B C, Aliçavuş, F K, Nhlapo, M D, Lund, M N, Goswami, P P, Savanov, I, Jorissen, A, Jurua, E, Avvakumova, E, Dmitrienko, E S, Chakradhari, N K, Das, M K, Chowdhury, S, Abedigamba, O P, Yakunin, I, Letarte, B & Karinkuzhi, D 2022, ' Study of chemically peculiar stars-I. High-resolution spectroscopy and K2 photometry of Am stars in the region of M44 ', Monthly Notices of the Royal Astronomical Society, vol. 510, no. 4, pp. 5854-5871 . https://doi.org/10.1093/mnras/stab3158

We present a study based on the high-resolution spectroscopy and K2 space photometry of five chemically peculiar stars in the region of the open cluster M44. The analysis of the high-precision photometric K2 data reveals that the light variations in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a63b2acecc3014793c27f0cec418eb00

High-resolution spectroscopy of flares and CMES on AD Leo*

Autor: Priscilla Muheki, Tom Mutabazi, E. Jurua, E. . W. Guenther

Flares and coronal mass ejections (CMEs) are important for the evolution of the atmospheres of planets and their potential habitability, particularly for planets orbiting M stars at a distance < 0.4 AU. Detections of CMEs on these stars have been spa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::264a2b4785264e9adf6e3cf15356e694