J/A+A/705/A60ivo://CDS.VizieR/J/A+A/705/A60CDSZummer M.Harmanec P.Barlow B.Blackford M.Svrckova J.2026-03-02T06:25:50Z2026-01-08T09:48:25ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frspectroscopic-binary-starsradial-velocityvisible-astronomyAnalysing a large body of observational data, we found that HD 135160 is a quadruple 2+2 system, composed of a massive ellipsoidal binary ("heartbeat" star) with components Aa and Ab in an eccentric 8.234d orbit and an eclipsing binary (with components Ba and Bb) with a 5.853d period and partial eclipses that have already been reported from the space photometry secured by the Transiting Exoplanet Survey Satellite (TESS). Our systematic echelle spectroscopy, secured since September 2021, led to the discovery that the optical spectra are dominated by spectral lines of three early-type stars, two moving around each other on a 8.234d orbit of a high eccentricity, which causes periodic brightenings near the periastron passage, and the third one (component Ba) being the brighter component of the 5.853 d binary. Both pairs are physically bounded and revolve around each other with a period somewhere between 1600 and 2200 days (4.4-6 years). The object exhibits small cyclic light variations of a variable amplitude and characteristic time scale of 0.071d (14.14c/d), seen throughout the whole orbit. The nature of these tiny changes deserves further investigation. It also seems that the earlier classification of the object as a Be star is unfounded.2026A&A...705A..60Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/705/A60CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/705/A60https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/705/A60http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/705/A60https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/705/A60https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/705/A60http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/705/A60GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/705/A60/table2Multi-component RVs per line per epochrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDReduced Julian Date (HJD-2400000.0)dtime.epochdoubleRV1He4923? He4923 radial velocity of comp. 1km/sspect.dopplerVelocdoublenullablee_RV1He4923? He4923 radial velocity of comp. 1 uncertaintykm/sstat.errordoublenullableRV2He4923? He4923 radial velocity of comp. 2km/sspect.dopplerVelocdoublenullablee_RV2He4923? He4923 radial velocity of comp. 2 uncertaintykm/sstat.errordoublenullableRV3He4923? He4923 radial velocity of comp. 3km/sspect.dopplerVelocdoublenullablee_RV3He4923? He4923 radial velocity of comp. 3 uncertaintykm/sstat.errordoublenullableRV1He5016? He5016 radial velocity of comp. 1km/sspect.dopplerVelocdoublenullablee_RV1He5016? He5016 radial velocity of comp. 1 uncertaintykm/sstat.errordoublenullableRV2He5016? He5016 radial velocity of comp. 2km/sspect.dopplerVelocdoublenullablee_RV2He5016? He5016 radial velocity of comp. 2 uncertaintykm/sstat.errordoublenullableRV3He5016? He5016 radial velocity of comp. 3km/sspect.dopplerVelocdoublenullablee_RV3He5016? He5016 radial velocity of comp. 3 uncertaintykm/sstat.errordoublenullableRV1He6678? He6678 radial velocity of comp. 1km/sspect.dopplerVelocdoublenullablee_RV1He6678? He6678 radial velocity of comp. 1 uncertaintykm/sstat.errordoublenullableRV2He6678? He6678 radial velocity of comp. 2km/sspect.dopplerVelocdoublenullablee_RV2He6678? He6678 radial velocity of comp. 2 uncertaintykm/sstat.errordoublenullableRV3He6678? He6678 radial velocity of comp. 3km/sspect.dopplerVelocdoublenullablee_RV3He6678? He6678 radial velocity of comp. 3 uncertaintykm/sstat.errordoublenullableRV1Ha? H{alpha} radial velocity of comp. 1km/sspect.dopplerVelocdoublenullablee_RV1Ha? H{alpha} radial velocity of comp. 1 uncertaintykm/sstat.errordoublenullableRV2Ha? H{alpha} radial velocity of comp. 2km/sspect.dopplerVelocdoublenullablee_RV2Ha? H{alpha} radial velocity of comp. 2 uncertaintykm/sstat.errordoublenullableRV3Ha? H{alpha} radial velocity of comp. 3km/sspect.dopplerVelocdoublenullablee_RV3Ha? H{alpha} radial velocity of comp. 3 uncertaintykm/sstat.errordoublenullableRV1Hb? H{beta} radial velocity of comp. 1km/sspect.dopplerVelocdoublenullablee_RV1Hb? H{beta} radial velocity of comp. 1 uncertaintykm/sstat.errordoublenullableRV2Hb? H{beta} radial velocity of comp. 2km/sspect.dopplerVelocdoublenullablee_RV2Hb? H{beta} radial velocity of comp. 2 uncertaintykm/sstat.errordoublenullableRV1HeII4686? HeII4686 radial velocity of comp. 1km/sspect.dopplerVelocdoublenullablee_RV1HeII4686? HeII4686 radial velocity of comp. 1 uncertaintykm/sstat.errordoublenullableRV1HeII5411? HeII5411 radial velocity of comp. 1km/sspect.dopplerVelocdoublenullablee_RV1HeII5411? HeII5411 radial velocity of comp. 1 uncertaintykm/sstat.errordoublenullable