Period–Luminosity Relationship forδScuti Stars Revisited

作     者：Atila Poro S.Javad Jafarzadeh Roghaye Harzandjadidi Mohammad Madani Elnaz Bozorgzadeh Esfandiar Jahangiri Ahmad Sarostad Ailar Alizadehsabegh Maryam Hadizadeh Mohammad EsmaeiliVakilabadi Atila Poro;S.Javad Jafarzadeh;Roghaye Harzandjadidi;Mohammad Madani;Elnaz Bozorgzadeh;Esfandiar Jahangiri;Ahmad Sarostad;Ailar Alizadehsabegh;Maryam Hadizadeh;Mohammad EsmaeiliVakilabadi

作者机构：The Raderon AI LaboratoryAstronomy DepartmentBurnabyBCCanada Department of PhysicsUniversity of Texas at Dallas800 W.Campbell Rd.RichardsonTX 75080USA Department of Theoretical Physics and AstrophysicsUniversity of ZanjanZanjanIran Independent researcherTehranIran Department of Electronics and TelecommunicationsPolitecnico Di TorinoTurinItaly Independent researcherIsfahanIran Yazd Desert Night Sky Astronomy InstituteYazdIran Department of PhotonicsTabriz UniversityTabrizIran Khayyam Astronomy AssociationFarsFasaIran 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2024年第24卷第2期

页      面：138-143页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：Gaia Data Processing and Analysis Consortium Diabetes Patient Advocacy Coalition, DPAC European Space Agency, ESA 

主　　题：stars variables delta Scuti--stars fundamental parameters-methods data analysis 

摘      要：The Gaia DR3 parallax approach was used to estimate the absolute parameters of 2375δScuti stars from the ASAS *** selected stars have a variety of observational characteristics,with a higher than 80%probability of beingδScuti *** have displayed all the stars in the Hertzsprung-Russell diagram along with theδScuti instability strip,the Zero Age Main Sequence and the Terminal Age Main ***,we determined which fundamental and overtone modes each star belongs to using pulsation constant(Q)*** addition,we evaluated the parameters in the Q calculation equation using three machine learning methods,which showed that surface gravity and temperature have the greatest effect on its *** Period-Luminosity(P-L)relationship of theδScuti stars was also ***,using least squares linear regression,we made four linear fits for fundamental and overtone modes and updated their relationships.