Literature DB >> 32355029

The Sun is less active than other solar-like stars.

Timo Reinhold1, Alexander I Shapiro2, Sami K Solanki2,3, Benjamin T Montet4, Natalie A Krivova2, Robert H Cameron2, Eliana M Amazo-Gómez2,5.   

Abstract

The magnetic activity of the Sun and other stars causes their brightness to vary. We investigated how typical the Sun's variability is compared with other solar-like stars, i.e., those with near-solar effective temperatures and rotation periods. By combining 4 years of photometric observations from the Kepler space telescope with astrometric data from the Gaia spacecraft, we were able to measure photometric variabilities of 369 solar-like stars. Most of those with well-determined rotation periods showed higher variability than the Sun and are therefore considerably more active. These stars appear nearly identical to the Sun except for their higher variability. Therefore, we speculate that the Sun could potentially also go through epochs of such high variability.
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.

Year:  2020        PMID: 32355029     DOI: 10.1126/science.aay3821

Source DB:  PubMed          Journal:  Science        ISSN: 0036-8075            Impact factor:   47.728


  2 in total

Review 1.  Overview of the LAMOST survey in the first decade.

Authors:  Hongliang Yan; Haining Li; Song Wang; Weikai Zong; Haibo Yuan; Maosheng Xiang; Yang Huang; Jiwei Xie; Subo Dong; Hailong Yuan; Shaolan Bi; Yaoquan Chu; Xiangqun Cui; Licai Deng; Jianning Fu; Zhanwen Han; Jinliang Hou; Guoping Li; Chao Liu; Jifeng Liu; Xiaowei Liu; Ali Luo; Jianrong Shi; Xuebing Wu; Haotong Zhang; Gang Zhao; Yongheng Zhao
Journal:  Innovation (Camb)       Date:  2022-03-08

2.  Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE.

Authors:  Nicolas Brehm; Marcus Christl; Timothy D J Knowles; Emmanuelle Casanova; Richard P Evershed; Florian Adolphi; Raimund Muscheler; Hans-Arno Synal; Florian Mekhaldi; Chiara I Paleari; Hanns-Hubert Leuschner; Alex Bayliss; Kurt Nicolussi; Thomas Pichler; Christian Schlüchter; Charlotte L Pearson; Matthew W Salzer; Patrick Fonti; Daniel Nievergelt; Rashit Hantemirov; David M Brown; Ilya Usoskin; Lukas Wacker
Journal:  Nat Commun       Date:  2022-03-07       Impact factor: 14.919

  2 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.