About: Apsidal motion in southern eccentric eclipsing binaries: V539 Ara, GG Lup, V526 Sgr and AO Vel     Goto   Sponge   NotDistinct   Permalink

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  • Several new times of minimum light have been observed photoelectricaly for the early-type double-lined eccentric eclipsing binaries V539 Ara (P = 3.2 deg, e = 0.05), GG Lup (1.9 deg, 0.15), V526 Sgr (1.9 deg, 0.22) and AO Vel (1.6 deg, 0.07). The O{-}C diagrams are analysed using all reliable timings found in the literature and improved values for the elements of the apsidal motion are computed. We find more precise, relatively short periods of apsidal motion of about 162, 102, 155 and 54 years for V539 Ara, GG Lup, V526 Sgr and AO Vel, respectively. The corresponding internal structure constants, log k_2, are then found to be 2.33, 2.16, 2.36 and 2.24 under the assumption that the component stars rotate pseudosynchronously. The relativistic effects are negligible, being about 6 7% of the total apsidal motion rate in all systems.
  • Several new times of minimum light have been observed photoelectricaly for the early-type double-lined eccentric eclipsing binaries V539 Ara (P = 3.2 deg, e = 0.05), GG Lup (1.9 deg, 0.15), V526 Sgr (1.9 deg, 0.22) and AO Vel (1.6 deg, 0.07). The O{-}C diagrams are analysed using all reliable timings found in the literature and improved values for the elements of the apsidal motion are computed. We find more precise, relatively short periods of apsidal motion of about 162, 102, 155 and 54 years for V539 Ara, GG Lup, V526 Sgr and AO Vel, respectively. The corresponding internal structure constants, log k_2, are then found to be 2.33, 2.16, 2.36 and 2.24 under the assumption that the component stars rotate pseudosynchronously. The relativistic effects are negligible, being about 6 7% of the total apsidal motion rate in all systems. (en)
Title
  • Apsidal motion in southern eccentric eclipsing binaries: V539 Ara, GG Lup, V526 Sgr and AO Vel
  • Apsidal motion in southern eccentric eclipsing binaries: V539 Ara, GG Lup, V526 Sgr and AO Vel (en)
skos:prefLabel
  • Apsidal motion in southern eccentric eclipsing binaries: V539 Ara, GG Lup, V526 Sgr and AO Vel
  • Apsidal motion in southern eccentric eclipsing binaries: V539 Ara, GG Lup, V526 Sgr and AO Vel (en)
skos:notation
  • RIV/00216224:14310/05:00012964!RIV10-GA0-14310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA205/04/2063)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 512963
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/05:00012964
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • binaries: eclipsing; stars: individual: V539 Ara; stars: individual: GG Lup; stars: individual: V526 Sgr; stars: individual: AO Vel; stars: fundamental parameters (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [C16E0FD9BE64]
http://linked.open...i/riv/nazevZdroje
  • Astronomy and Astrophysics
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 437
http://linked.open...iv/tvurceVysledku
  • Zejda, Miloslav
  • Wolf, Marek
http://linked.open...ain/vavai/riv/wos
  • 000229978400019
issn
  • 0004-6361
number of pages
http://localhost/t...ganizacniJednotka
  • 14310
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