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Publikováno v:
Monthly Notices of the Royal Astronomical Society. 265:231-236
We present observations at 5 GHz of flaring and quiescent emission from the red dwarf star YZ CMi, obtained with the Jodrell Bank broad-band interferometer. Weak (1 to 2 mJy) quiescent emission varying over time-scales of hours was detected, in addit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d4168243bc9b37828f24671de55be7b
https://doi.org/10.1093/mnras/265.1.231
https://doi.org/10.1093/mnras/265.1.231
Autor:
Ch. Stavliotis, B. Zafiropoulos
Publikováno v:
The Dynamics of Small Bodies in the Solar System ISBN: 9789048151332
This paper gives the perturbed elements of a satellite moving in the potential of a hemispherical shell. In the first section of this investigation the potential of the shell is calculated explicitly in terms of spherical harmonics. The disturbing ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5e5f1c4c305fc4f7beea8a5439b0d59
https://doi.org/10.1007/978-94-015-9221-5_33
https://doi.org/10.1007/978-94-015-9221-5_33
Autor:
Ch. Stavliotis, B. Zafiropoulos
Publikováno v:
From Newton to Chaos ISBN: 9781489910875
Various forms of potentials produced by rings, disks, oblate or prolate spheroids, electric or magnetic dipoles etc., can be expressed by means of Legendre polynomials. We choose an oblate spheroid to demonstrate a general method for obtaining the pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f9ed45723d20756f1a66132b71ff37a
https://doi.org/10.1007/978-1-4899-1085-1_22
https://doi.org/10.1007/978-1-4899-1085-1_22
Autor:
B. Zafiropoulos, F. Zafiropoulos
Publikováno v:
Active Close Binaries ISBN: 9789401067904
A general method for obtaining the perturbed elements of a satellite, moving in various forms of axi-symmetric potentials, is presented in this investigation. The first section contains various examples of axi-symmetric potentials. This section is fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8605ad93d6ec490d8d11680268df4482
https://doi.org/10.1007/978-94-009-0679-2_60
https://doi.org/10.1007/978-94-009-0679-2_60
Autor:
B. Zafiropoulos
Publikováno v:
Astrophysics and Space Science. 139:111-128
The equations for the variation of the osculating elements of a satellite moving in an axi-symmetric gravitational field are integrated to yield the complete first-order perturbations for the elements of the orbit. The expressions obtained include th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b092c7cba789d4e9b1fd0eaa16f03fea
https://doi.org/10.1007/bf00643817
https://doi.org/10.1007/bf00643817
Autor:
B. Zafiropoulos
Publikováno v:
Astrophysics and Space Science. 139:353-364
This investigation presents the orbital elements of a satellite moving in a circular ring potential. The ring is considered to be of infinitesimal thickness and of unit radius. The components of the perturbing accelerations due to the ring potential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b552b64502e027ec7fcae4df20305a32
https://doi.org/10.1007/bf00644364
https://doi.org/10.1007/bf00644364
Autor:
B. Zafiropoulos, F. Zafiropoulos
Publikováno v:
Astrophysics and Space Science. 88:401-427
In two previous papers (Zafiropoulos and Kopal, 1983a, b; hereafter referred to as Papers I and II) we have investigated the effects of rotational and tidal distortion (for non-lagging tides) on the orbital elements of a close binary system. The pres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dc666242bc708b9b75531285d68ac36
https://doi.org/10.1007/bf01092708
https://doi.org/10.1007/bf01092708
Autor:
Zdeni ~ K Kopal, B. Zafiropoulos
Publikováno v:
Astrophysics and Space Science. 88:355-400
In a previous paper (Zafiropoulos and Kopal, 1982; hereafter referred to as Paper I) we have studies the effects of rotational distortion on the orbital elements. The aim of the present paper is to investigate the secular and periodic perturbations o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d655af80478dde5a54a992f7972c9aa9
https://doi.org/10.1007/bf01092707
https://doi.org/10.1007/bf01092707
Autor:
Zdeněk Kopal, B. Zafiropoulos
Publikováno v:
Astrophysics and Space Science. 88:331-353
This paper deals with the perturbations which rotation can produce to the orbital elements of a close binary system. The rectangular components,R, S andW of the disturbing accelerations due to rotation have been substituted to the Gauss form of Lagra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b70c942b748e0a4dbfe257ea743e17ec
https://doi.org/10.1007/bf01092706
https://doi.org/10.1007/bf01092706