About: THE THREE-BODY SYSTEM delta CIRCINI

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1088/0004-6256/148/6/114
Description	Delta Cir is known as an O7.5 III eclipsing and spectroscopic binary with an eccentric orbit. Penny et al. discovered the presence of a third component in the IUE spectra. The eclipsing binary and the third body revolve around a common center of gravity with a period of 1644 days in an eccentric orbit with a semimajor axis of 10 AU. We demonstrate the presence of apsidal-line rotation with a period of approximate to 141 yr, which is considerably longer than its theoretically predicted value, based on the published radii of the binary components derived from the Hipparchos H-p light curve. However, our new solution of the same light curve resulted in smaller radii and better agreement between the observed and predicted period of the apsidal-line advance. There are indications that the third body is a binary. The object was resolved by VLTI using the PIONIER combiner; in 2012 June, the separation was 3.78 mas with magnitude difference in the H region 1.(m)75. This result means that (assuming a distance of 770 pc) the inclination of the long orbit is 87.degrees 7. Delta Cir is known as an O7.5 III eclipsing and spectroscopic binary with an eccentric orbit. Penny et al. discovered the presence of a third component in the IUE spectra. The eclipsing binary and the third body revolve around a common center of gravity with a period of 1644 days in an eccentric orbit with a semimajor axis of 10 AU. We demonstrate the presence of apsidal-line rotation with a period of approximate to 141 yr, which is considerably longer than its theoretically predicted value, based on the published radii of the binary components derived from the Hipparchos H-p light curve. However, our new solution of the same light curve resulted in smaller radii and better agreement between the observed and predicted period of the apsidal-line advance. There are indications that the third body is a binary. The object was resolved by VLTI using the PIONIER combiner; in 2012 June, the separation was 3.78 mas with magnitude difference in the H region 1.(m)75. This result means that (assuming a distance of 770 pc) the inclination of the long orbit is 87.degrees 7. (en)
Title	THE THREE-BODY SYSTEM delta CIRCINI THE THREE-BODY SYSTEM delta CIRCINI (en)
skos:prefLabel	THE THREE-BODY SYSTEM delta CIRCINI THE THREE-BODY SYSTEM delta CIRCINI (en)
skos:notation	RIV/00216208:11320/14:10287027!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP209/10/0715), Z(MSM0021620860)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Harmanec, Petr Mayer, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	50480
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10287027
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	stars: individual (Delta Circini); stars: early-type; binaries: general (en)
http://linked.open.../riv/klicoveSlovo	stars: early-type stars: individual (Delta Circini) binaries: general
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[491EBAE873E7]
http://linked.open...i/riv/nazevZdroje	Astronomical Journal
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Accurate physical properties of hot stars based on binary and multiple star studies
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	148
http://linked.open...iv/tvurceVysledku	Harmanec, Petr Mayer, Pavel Le Bouquin, Jean-Baptiste Sana, Hugues
http://linked.open...ain/vavai/riv/wos	000345223200011
http://linked.open...n/vavai/riv/zamer	Fyzikální studium objektů a procesů ve sluneční soustavě a v astrofyzikálních systémech
issn	0004-6256
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0004-6256/148/6/114
http://localhost/t...ganizacniJednotka	11320

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