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  • The analysis of radial velocities of the Be star o Cas from spectra taken between 1992 and 2008 at Ondrejov and Dominion Astrophysical Observatories allowed us to reconfirm the binary nature of this object, first suggested by Abt and Levy in 1978, but later refuted by several authors. The orbital parameters of this SB1 system imply a very high mass function of about one solar mass. This in turn leads to a very high mass of the secondary, possibly higher than that of the primary. In order to check for the existence of such a massive secondary, o Cas was observed with the Navy Prototype Optical Interferometer, which allowed the binary components to be spatially resolved for the first time. The interferometric observations lead to the detection of a secondary, about 3 mag fainter than the primary. The possible properties of this peculiar binary system are discussed.
  • The analysis of radial velocities of the Be star o Cas from spectra taken between 1992 and 2008 at Ondrejov and Dominion Astrophysical Observatories allowed us to reconfirm the binary nature of this object, first suggested by Abt and Levy in 1978, but later refuted by several authors. The orbital parameters of this SB1 system imply a very high mass function of about one solar mass. This in turn leads to a very high mass of the secondary, possibly higher than that of the primary. In order to check for the existence of such a massive secondary, o Cas was observed with the Navy Prototype Optical Interferometer, which allowed the binary components to be spatially resolved for the first time. The interferometric observations lead to the detection of a secondary, about 3 mag fainter than the primary. The possible properties of this peculiar binary system are discussed. (en)
Title
  • Combined Spectroscopic and Interferometric (NPOI) Observations of the Be star o Cassiopeiae
  • Combined Spectroscopic and Interferometric (NPOI) Observations of the Be star o Cassiopeiae (en)
skos:prefLabel
  • Combined Spectroscopic and Interferometric (NPOI) Observations of the Be star o Cassiopeiae
  • Combined Spectroscopic and Interferometric (NPOI) Observations of the Be star o Cassiopeiae (en)
skos:notation
  • RIV/67985815:_____/10:00355084!RIV15-AV0-67985815
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(AV0Z10030501)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 251225
http://linked.open...ai/riv/idVysledku
  • RIV/67985815:_____/10:00355084
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • astrometry; spectroscopic; emission-line (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [474DE2358D7B]
http://linked.open...v/mistoKonaniAkce
  • Viña del Mar
http://linked.open...i/riv/mistoVydani
  • Mexico City
http://linked.open...i/riv/nazevZdroje
  • Interferometric View on Hot Stars
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Harmanec, Petr
  • Koubský, Pavel
  • Božič, H.
  • Yang, S.
  • Hummmel, C. A.
  • Tycner, C.
  • Zavala, R. T.
http://linked.open...vavai/riv/typAkce
http://linked.open...ain/vavai/riv/wos
  • 000305162500031
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
issn
  • 1405-2059
number of pages
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  • Universidad Nacional Autonoma Mexico
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  • 978-607-02-1317-5
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