{"title":"THE MASS-SFR-METALLICITY RELATION OF STAR FORMING GALAXIES AND ITS EVOLUTION: IMPLICATIONS FOR GRB/SN HOST GALAXIES","authors":"Y. Niino","doi":"10.1051/EAS/1361068","DOIUrl":null,"url":null,"abstract":"Observed properties of gamma-ray burst (GRB) host galaxies are important clues to understand the nature of GRB progenitors. However, the properties of the host galaxies don’t directly tell us the nature of the GRB progenitors, and the decipherment of the clue relies on our understanding of general galaxies. The relation between stellar mass, star formation rate (SFR), and metallicity of star forming galaxies (so called the fundamental metallicity relation) has recently attracted attention regarding its possible impact upon our understanding on the properties of the long GRB host galaxies. In this study, I show the possibility of redshift evolution of the mass–SFR–metallicity relation which has been claimed to be independent of redshift, and discuss implications of the evolving relation for the properties of GRB/SN host galaxies.","PeriodicalId":335082,"journal":{"name":"Gamma-ray Bursts: 15 Years of GRB Afterglows","volume":"21 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gamma-ray Bursts: 15 Years of GRB Afterglows","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1051/EAS/1361068","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Observed properties of gamma-ray burst (GRB) host galaxies are important clues to understand the nature of GRB progenitors. However, the properties of the host galaxies don’t directly tell us the nature of the GRB progenitors, and the decipherment of the clue relies on our understanding of general galaxies. The relation between stellar mass, star formation rate (SFR), and metallicity of star forming galaxies (so called the fundamental metallicity relation) has recently attracted attention regarding its possible impact upon our understanding on the properties of the long GRB host galaxies. In this study, I show the possibility of redshift evolution of the mass–SFR–metallicity relation which has been claimed to be independent of redshift, and discuss implications of the evolving relation for the properties of GRB/SN host galaxies.
观测到的伽玛射线暴(GRB)宿主星系的性质是了解GRB祖星系性质的重要线索。然而，宿主星系的特性并不能直接告诉我们GRB祖先的性质，而对线索的解读依赖于我们对一般星系的理解。恒星质量、恒星形成速率(SFR)和恒星形成星系的金属丰度之间的关系(所谓的基本金属丰度关系)最近引起了人们的关注，因为它可能影响我们对长GRB宿主星系性质的理解。在本研究中，我展示了被认为与红移无关的质量- sr -金属丰度关系红移演化的可能性，并讨论了这一演化关系对GRB/SN宿主星系性质的影响。
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