HD 152246: a new high-mass triple system and its basic properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10287024" target="_blank" >RIV/00216208:11320/14:10287024 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201424382" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201424382</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201424382" target="_blank" >10.1051/0004-6361/201424382</a>

Jazyk výsledku

angličtina

Název v původním jazyce

HD 152246: a new high-mass triple system and its basic properties

Popis výsledku v původním jazyce

Analyses of multi-epoch, high-resolution (R similar to 50 000) optical spectra of the O-type star HD 152246 (09 IV according to the most recent classification), complemented by a limited number of earlier published radial velocities, led to the finding that the object is a hierarchical triple system, where a close inner pair (Ba-Bb) with a slightly eccentric orbit (e = 0.11) and a period of 6.0049 revolves in a 470-day highly eccentric orbit (e = 0.865) with another massive and brighter component A. Themass ratio of the inner system must be low since we were unable to find any traces of the secondary spectrum. The mass ratio A/(Ba+Bb) is 0.89. The outer system has recently been resolved using long-baseline interferometry on three occasions. The interferometry confirms the spectroscopic results and specifies elements of the system. Our orbital solutions, including the combined radial-velocity and interferometric solution indicate an orbital inclination of the outer orbit of 112 and ste

Název v anglickém jazyce

HD 152246: a new high-mass triple system and its basic properties

Popis výsledku anglicky

Analyses of multi-epoch, high-resolution (R similar to 50 000) optical spectra of the O-type star HD 152246 (09 IV according to the most recent classification), complemented by a limited number of earlier published radial velocities, led to the finding that the object is a hierarchical triple system, where a close inner pair (Ba-Bb) with a slightly eccentric orbit (e = 0.11) and a period of 6.0049 revolves in a 470-day highly eccentric orbit (e = 0.865) with another massive and brighter component A. Themass ratio of the inner system must be low since we were unable to find any traces of the secondary spectrum. The mass ratio A/(Ba+Bb) is 0.89. The outer system has recently been resolved using long-baseline interferometry on three occasions. The interferometry confirms the spectroscopic results and specifies elements of the system. Our orbital solutions, including the combined radial-velocity and interferometric solution indicate an orbital inclination of the outer orbit of 112 and ste

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP209%2F10%2F0715" target="_blank" >GAP209/10/0715: Přesné fyzikální vlastnosti horkých hvězd získané studiem dvojhvězd a vícenásobných soustav</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

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Svazek periodika

568

Číslo periodika v rámci svazku

srpen

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000341185900131

EID výsledku v databázi Scopus

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