论文标题
快速无线电爆发与恒星瞬变之间的宿主星系特性的比较研究
A comparative study of host galaxy properties between Fast Radio Bursts and stellar transients
论文作者
论文摘要
快速无线电爆发的最新局部定位和宿主星系的识别证实了它们的外层状源。虽然FRB 121102位于矮星的明亮区域，形成星系，其他FRB位于更大的星系中，并且与较老的恒星种群有关。我们将{九个} frb的宿主星系性能与几种类型的恒星瞬变进行比较：从年轻人到老年人，长时间持续时间γ射线爆发（lgrbs），超级超级novae（Slsne）（Slsne），IB/IC Supernovae（SN IBC），SN II II II型Supernovae（SN II II II II II IIA），SN SUPERSA和RAY IIA SUPERNOVE（SN SUPH） （SGRB）。我们发现，作为一个整体样本，FRB宿主星系的恒星质量和星形形成率更喜欢培养基，并且反对类似于LGRB和SLSNE的年轻人群，而无效的概率为0.02。单独的FRB 121102主机与年轻人口对象一致。 FRB 180924环境与SGRB相似。 FRB 190523环境与SN IA的环境相似。这些结果与FRB的磁力发动机模型一致，如果磁铁均来自极端爆炸（GRB/SLSNE），并且来自常规通道（例如那些产生银河系磁盘）都可以产生FRB。
Recent arcsecond localizations of Fast Radio Bursts and identifications of their host galaxies confirmed their extragalactic origin.While FRB 121102 resides in the bright region of a dwarf star forming galaxy, other FRBs reside in more massive galaxies and are related to older stellar populations. We compare the host galaxy properties of {nine} FRBs with those of several types of stellar transients: from young to old population, long duration gamma ray bursts (LGRBs), superluminous supernovae (SLSNe), Type Ib/Ic supernovae (SN Ibc), Type II supernovae (SN II), type Ia supernovae (SN Ia), and short duration gamma ray bursts (SGRBs). We find that as a whole sample, the stellar mass and star formation rate of the FRB host galaxies prefer a medium to old population, and are against a young population similar to LGRBs and SLSNe by a null probability 0.02. Individually, the FRB 121102 host is consistent with that of young population objects; the FRB 180924 environment is similar to that of SGRBs; and the FRB 190523 environment is similar to those of SN Ia. These results are consistent with the magnetar engine model for FRBs, if both magnetars produced from extreme explosions (GRBs/SLSNe) and from regular channels (e.g. those producing Galactic magnetars) can produce FRBs.
