Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Pieter J Meintjes"'
Publikováno v:
Galaxies, Vol 11, Iss 1, p 14 (2023)
In this paper, the possibility of periodic pulsar-like gamma-ray emission from the white dwarfs in AE Aquarii and AR Scorpii is investigated. We show that the white dwarf magnetospheres in AE Aquarii and AR Scorpii can possibly induce potentials to a
Externí odkaz:
https://doaj.org/article/c2ec36fbf3f44314b896fb0678bd992b
Changes in the supercycle lengths of some SU UMa-type dwarf novae have been detected by other studies, and indicate that the mass transfer rates noticeably decrease over time. We investigated the supercycle lengths of three SU UMa-type dwarf novae: A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12f92cb0137acd657774376783078230
https://eprints.soton.ac.uk/467662/
https://eprints.soton.ac.uk/467662/
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 1, Iss 1, Pp 163-169 (2014)
Of the 271 sources in the 3rd EGRET catalogue, 131 were reported as unidentied, i.e. not associated with any particular class of point source in the sky. Since the largest fraction of the EGRET sources were extragalactic, a sample of 13 extragalactic
Externí odkaz:
https://doaj.org/article/7c165cda54f14b9cb30512c61b96ab04
Autor:
Brian van Soelen, Pieter J. Meintjes
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 1, Iss 1, Pp 127-131 (2014)
This paper presents a brief overview of the multifrequency properties of the gamma-ray binary system PSR B1259-63 from radio to very high energy gamma-rays. A summary is also presented of the various models put forward to explain the Fermi "flare" de
Externí odkaz:
https://doaj.org/article/4e483e6859b6405aa0e52725c571a012
Publikováno v:
Galaxies, Vol 6, Iss 1, p 14 (2018)
The binary star AR Scorpii was recently discovered to exhibit high amplitude coherent variability across the electromagnetic spectrum (ultraviolet to radio) at two closely spaced ∼2 min periods, attributed to the spin period of a white dwarf and th
Externí odkaz:
https://doaj.org/article/a7311b16480a4b669344ced890956a5d
Publikováno v:
Acta Polytechnica, Vol 53, Iss A (2013)
In this paper we report the results of a multi-wavelength follow-up study of selected flat spectrum extragalactic radio-optical counterparts within the error boxes of 13 unidentified EGRET sources. Two of these previously unidentified counterparts ha
Externí odkaz:
https://doaj.org/article/00748ed0a60e4690b5e130a4daa909d2
Publikováno v:
Galaxies; Volume 6; Issue 1; Pages: 14
Galaxies, Vol 6, Iss 1, p 14 (2018)
Galaxies, Vol 6, Iss 1, p 14 (2018)
The binary star AR Scorpii was recently discovered to exhibit high amplitude coherent variability across the electromagnetic spectrum (ultraviolet to radio) at two closely spaced ∼2 min periods, attributed to the spin period of a white dwarf and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edf6a01819a3903fd744b022befacc47
Publikováno v:
Galaxies (2075-4434); Feb2023, Vol. 11 Issue 1, p14, 23p
Autor:
Van Heerden, H. J.1
Publikováno v:
MNASSA: Monthly Notes of the Astronomical Society of Southern Africa. Aug2008, Vol. 67 Issue 7/8, p116-134. 19p. 5 Black and White Photographs, 3 Charts.
Autor:
Buckley, David A.H., Potter, Stephen B., Meintjes, Pieter J., Marsh, Tom R., Gänsicke, Boris T.
Publikováno v:
Galaxies (2075-4434); Mar2018, Vol. 6 Issue 1, p14, 7p