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MUCHFUSS - massive unseen companions to hot faint underluminous stars from SDSS

dc.contributor.authorGeier, S.
dc.contributor.authorSchaffenroth, V.
dc.contributor.authorHirsch, H.
dc.contributor.authorTillich, A.
dc.contributor.authorHeber, U.
dc.contributor.authorMaxted, P. F. L.
dc.contributor.authorOstensen, R. H.
dc.contributor.authorBarlow, B. N.
dc.contributor.authorO'Toole, S. J.
dc.contributor.authorKupfer, T.
dc.contributor.authorMarsh, T.
dc.contributor.authorGaensicke, B.
dc.contributor.authorNapiwotzki, R.
dc.contributor.authorCordes, O.
dc.contributor.authorMueller, S.
dc.contributor.authorClassen, L.
dc.contributor.authorZiegerer, E.
dc.contributor.authorDrechsel, H.
dc.date.accessioned2012-08-02T14:00:31Z
dc.date.available2012-08-02T14:00:31Z
dc.date.issued2012-06
dc.identifier.citationGeier , S , Schaffenroth , V , Hirsch , H , Tillich , A , Heber , U , Maxted , P F L , Ostensen , R H , Barlow , B N , O'Toole , S J , Kupfer , T , Marsh , T , Gaensicke , B , Napiwotzki , R , Cordes , O , Mueller , S , Classen , L , Ziegerer , E & Drechsel , H 2012 , ' MUCHFUSS - massive unseen companions to hot faint underluminous stars from SDSS ' , Astronomische Nachrichten , vol. 333 , no. 5-6 , pp. 431-435 .
dc.identifier.issn0004-6337
dc.identifier.otherPURE: 962450
dc.identifier.otherPURE UUID: 66ce0207-3ce4-4978-960e-a3e6b5f95d23
dc.identifier.otherWOS: 000305331900006
dc.identifier.otherScopus: 84862638034
dc.identifier.urihttp://hdl.handle.net/2299/8767
dc.description.abstractThe project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact companions (white dwarfs with masses M > 1.0 M?, neutron stars or black holes). The existence of such systems is predicted by binary evolution calculations and some candidate systems have been found. We identified ?1100 hot subdwarf stars from the Sloan Digital Sky Survey (SDSS). Stars with high velocities have been reobserved and individual SDSS spectra have been analysed. About 70 radial velocity variable subdwarfs have been selected as good candidates for follow-up time resolved spectroscopy to derive orbital parameters and photometric follow-up to search for features like eclipses in the light curves. Up to now we found nine close binary sdBs with short orbital periods ranging from ?0.07 d to 1.5 d. Two of them are eclipsing binaries with companions that are most likely of substellar nature ((c) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)en
dc.format.extent5
dc.language.isoeng
dc.relation.ispartofAstronomische Nachrichten
dc.titleMUCHFUSS - massive unseen companions to hot faint underluminous stars from SDSSen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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