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  • A detailed analysis of a large collection of electronic spectra from three observatories, together with radial velocities published earlier, were used to derive a new ephemeris and improved orbital elements for the eps Persei binary. Observations covering a time interval of about 37 000 days (101.3 years) can be reconciled with a constant orbital period of 14.06916+/-0.00004 d. The high orbital eccentricity of 0.555+/-0.009 was also confirmed. New spectral observations confirm that there is a periodic variation of the systemic velocity. Together with new astrometric observations (also analyzed here), they confirm the existence of a third body in the system with an orbital period of about 9600 days (26.3 years). Attempts to detect the third body via interferometric observations should continue in spite of this first negative result.
  • A detailed analysis of a large collection of electronic spectra from three observatories, together with radial velocities published earlier, were used to derive a new ephemeris and improved orbital elements for the eps Persei binary. Observations covering a time interval of about 37 000 days (101.3 years) can be reconciled with a constant orbital period of 14.06916+/-0.00004 d. The high orbital eccentricity of 0.555+/-0.009 was also confirmed. New spectral observations confirm that there is a periodic variation of the systemic velocity. Together with new astrometric observations (also analyzed here), they confirm the existence of a third body in the system with an orbital period of about 9600 days (26.3 years). Attempts to detect the third body via interferometric observations should continue in spite of this first negative result. (en)
  • Detailní analýza velké kolekce elektronických spekter ze 3. observatoří společně s radiálními rychlostmi publikovanými dříve byla použita na určení nové efemeridy a vylepšených drahových elementů dvojhvězdy epsilon Persei. Pozorování zahrnující časový interval okolo 37 000 dní (101,3 let) může být srovnána s konstatní drahovou periodou 14,06916+/-0,00004 d. Vysoká drahová excentricita 0,555+/-0,009 byla rovněž potvrzena. Nová spektrální pozorování potvrdila, že je tam periodická změna systémové rychlosti. Společně s novým důkazem z astrometických pozorování (též analyzovaném zde), potvrdila existenci třetího tělesa v systému s drahovou periodou okolo 9600 dní (26,3 let). Pokusy vedoucí k detekci třetího tělesa pomocí interferometrických pozorování by měly pokračovat i přes první negativní výsledek. (cs)
Title
  • The new orbital elements and properties of epsilon Persei
  • The new orbital elements and properties of epsilon Persei (en)
  • Nové drahové elementy a vlastnosti epsilon Persei (cs)
skos:prefLabel
  • The new orbital elements and properties of epsilon Persei
  • The new orbital elements and properties of epsilon Persei (en)
  • Nové drahové elementy a vlastnosti epsilon Persei (cs)
skos:notation
  • RIV/67985815:_____/06:00030566!RIV07-AV0-67985815
http://linked.open.../vavai/riv/strany
  • 583;589
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(IAA3003205), P(KSK2043105), Z(AV0Z10030501)
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
  • 488571
http://linked.open...ai/riv/idVysledku
  • RIV/67985815:_____/06:00030566
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • stars; early-type-stars; spectroscopic (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • FR - Francouzská republika
http://linked.open...ontrolniKodProRIV
  • [20D2022BBAEC]
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
  • 446
http://linked.open...iv/tvurceVysledku
  • Hadrava, Petr
  • Harmanec, Petr
  • Vondrák, Jan
  • Libich, Jan
  • Škoda, Petr
  • Šlechta, Miroslav
  • Koubský, Pavel
  • Yang, S.
  • de Cat, P.
  • Uytterhoeven, K.
  • Aerts, C.
  • Mathias, P.
http://linked.open...n/vavai/riv/zamer
issn
  • 0004-6361
number of pages
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