Database of molecular masers and variable stars
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摘要
We present the database of maser sources in H2 O, OH and Si O lines that can be used to identify and study variable stars at evolved stages. Detecting the maser emission in H2 O, OH and Si O molecules toward infrared-excess objects is one of the methods for identifing long-period variables(LPVs, including miras and semiregulars), because these stars exhibit maser activity in their circumstellar shells. Our sample contains 1803 known LPV objects. Forty-six percent of these stars(832 objects) manifest maser emission in the line of at least one molecule: H2 O, OH or Si O. We use the database of circumstellar masers in order to search for LPVs which are not included in the General Catalogue of Variable Stars(GCVS). Our database contains 4806 objects(3866 objects without associations in GCVS) with maser detection in at least one molecule. Therefore it is possible to use the database in order to locate and study the large sample of LPV stars. The database can be accessed at http://maserdb.net.
We present the database of maser sources in H2 O, OH and Si O lines that can be used to identify and study variable stars at evolved stages. Detecting the maser emission in H2 O, OH and Si O molecules toward infrared-excess objects is one of the methods for identifing long-period variables(LPVs, including miras and semiregulars), because these stars exhibit maser activity in their circumstellar shells. Our sample contains 1803 known LPV objects. Forty-six percent of these stars(832 objects) manifest maser emission in the line of at least one molecule: H2 O, OH or Si O. We use the database of circumstellar masers in order to search for LPVs which are not included in the General Catalogue of Variable Stars(GCVS). Our database contains 4806 objects(3866 objects without associations in GCVS) with maser detection in at least one molecule. Therefore it is possible to use the database in order to locate and study the large sample of LPV stars. The database can be accessed at http://maserdb.net.
We present the database of maser sources in H2 O, OH and Si O lines that can be used to identify and study variable stars at evolved stages. Detecting the maser emission in H2 O, OH and Si O molecules toward infrared-excess objects is one of the methods for identifing long-period variables(LPVs, including miras and semiregulars), because these stars exhibit maser activity in their circumstellar shells. Our sample contains 1803 known LPV objects. Forty-six percent of these stars(832 objects) manifest maser emission in the line of at least one molecule: H2 O, OH or Si O. We use the database of circumstellar masers in order to search for LPVs which are not included in the General Catalogue of Variable Stars(GCVS). Our database contains 4806 objects(3866 objects without associations in GCVS) with maser detection in at least one molecule. Therefore it is possible to use the database in order to locate and study the large sample of LPV stars. The database can be accessed at http://maserdb.net.
引文
Benson,P.J.,Little-Marenin,I.R.,Woods,T.C.,et al.1990,ApJS,74,911
Engels,D.,&Bunzel,F.2015,A&A,582,A68
Gorlova,N.,Rieke,G.H.,Muzerolle,J.,et al.2006,ApJ,649,1028
Gorlova,N.,Padgett,D.L.,Rieke,G.H.,et al.2004,ApJS,154,448
Gray,M.2012,Maser Sources in Astrophysics(Cambridge:Cambridge University Press)
He,J.H.,Szczerba,R.,Chen,P.S.,&Sobolev,A.M.2005,A&A,434,201
Holl,B.,Audard,M.,Nienartowicz,K.,et al.2018,arXiv:1804.09373
Hovhannisyan,L.R.,Mickaelian,A.M.,Weedman,D.W.,et al.2009,AJ,138,251
Kholopov,P.N.,Samus,N.N.,Kazarovets,E.V.,&Perova,N.B.1985,Information Bulletin on Variable Stars,2681
Nakashima,J.-i.,Ladeyschikov,D.A.,Sobolev,A.M.,et al.2016,ApJ,825,16
Nakashima,J.-i.,Sobolev,A.M.,Salii,S.V.,et al.2015,PASJ,67,95
Nakashima,J.,Engels,D.,Hsia,C.-H.,et al.2018,The Extensive Database of Astrophysical Maser Sources(eDAMS):the First Release on Circumstellar Maser Sources Astrophysical Masers:Unlocking the Mysteries of the Universe,Proceedings of the International Astronomical Union,IAU Symposium,336,395
Samus’,N.N.,Kazarovets,E.V.,Durlevich,O.V.,Kireeva,N.N.,&Pastukhova,E.N.2017,Astronomy Reports,61,80
van der Veen,W.E.C.J.,Habing,H.J.,&Geballe,T.1987,in Astrophysics and Space Science Library,135,Planetary and Proto-Planetary Nebulae:From IRAS to ISO,ed.A.Preite Martinez,69
Wu,C.-J.,Wu,H.,Lam,M.-I.,et al.2013,ApJS,208,29
Yung,B.H.K.,Nakashima,J.-i.,Imai,H.,et al.2013,ApJ,769,20
1http://maserdb.net
Engels,D.,&Bunzel,F.2015,A&A,582,A68
Gorlova,N.,Rieke,G.H.,Muzerolle,J.,et al.2006,ApJ,649,1028
Gorlova,N.,Padgett,D.L.,Rieke,G.H.,et al.2004,ApJS,154,448
Gray,M.2012,Maser Sources in Astrophysics(Cambridge:Cambridge University Press)
He,J.H.,Szczerba,R.,Chen,P.S.,&Sobolev,A.M.2005,A&A,434,201
Holl,B.,Audard,M.,Nienartowicz,K.,et al.2018,arXiv:1804.09373
Hovhannisyan,L.R.,Mickaelian,A.M.,Weedman,D.W.,et al.2009,AJ,138,251
Kholopov,P.N.,Samus,N.N.,Kazarovets,E.V.,&Perova,N.B.1985,Information Bulletin on Variable Stars,2681
Nakashima,J.-i.,Ladeyschikov,D.A.,Sobolev,A.M.,et al.2016,ApJ,825,16
Nakashima,J.-i.,Sobolev,A.M.,Salii,S.V.,et al.2015,PASJ,67,95
Nakashima,J.,Engels,D.,Hsia,C.-H.,et al.2018,The Extensive Database of Astrophysical Maser Sources(eDAMS):the First Release on Circumstellar Maser Sources Astrophysical Masers:Unlocking the Mysteries of the Universe,Proceedings of the International Astronomical Union,IAU Symposium,336,395
Samus’,N.N.,Kazarovets,E.V.,Durlevich,O.V.,Kireeva,N.N.,&Pastukhova,E.N.2017,Astronomy Reports,61,80
van der Veen,W.E.C.J.,Habing,H.J.,&Geballe,T.1987,in Astrophysics and Space Science Library,135,Planetary and Proto-Planetary Nebulae:From IRAS to ISO,ed.A.Preite Martinez,69
Wu,C.-J.,Wu,H.,Lam,M.-I.,et al.2013,ApJS,208,29
Yung,B.H.K.,Nakashima,J.-i.,Imai,H.,et al.2013,ApJ,769,20
1http://maserdb.net