astro.bib

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@Article{Li2018,
  author   = {Li, Zheng-Xiang and Gao, He and Ding, Xu-Heng and Wang, Guo-Jian and Zhang, Bing},
  journal  = {Nature Communications},
  title    = {Strongly lensed repeating fast radio bursts as precision probes of the universe},
  year     = {2018},
  issn     = {2041-1723},
  month    = sep,
  pages    = {3833},
  volume   = {9},
  abstract = {Fast radio bursts (FRBs), bright transients with millisecond durations at ～GHz and typical redshifts probably {\textgreater}0.8, are likely to be gravitationally lensed by intervening galaxies. Since the time delay between images of strongly lensed FRB can be measured to extremely high precision because of the large ratio ～109 between the typical galaxy-lensing delay time O (10 days) and the width of bursts O (ms), we propose strongly lensed FRBs as precision probes of the universe. We show that, within the flat ΛCDM model, the Hubble constant H0 can be constrained with a 0.91\% uncertainty from 10 such systems probably observed with the square kilometer array (SKA) in {\textless}30 years. More importantly, the cosmic curvature can be model independently constrained to a precision of ～0.076. This constraint can directly test the validity of the cosmological principle and break the intractable degeneracy between the cosmic curvature and dark energy.},
  doi      = {10.1038/s41467-018-06303-0},
  file     = {Full Text PDF:https\://ui.adsabs.harvard.edu/link_gateway/2018NatCo...9.3833L/ARTICLE:application/pdf},
  url      = {http://adsabs.harvard.edu/abs/2018NatCo...9.3833L},
  urldate  = {2021-02-10},
}

@Article{Lin2020,
  author   = {Lin, L. and Zhang, C. F. and Wang, P. and Gao, H. and Guan, X. and Han, J. L. and Jiang, J. C. and Jiang, P. and Lee, K. J. and Li, D. and Men, Y. P. and Miao, C. C. and Niu, C. H. and Niu, J. R. and Sun, C. and Wang, B. J. and Wang, Z. L. and Xu, H. and Xu, J. L. and Xu, J. W. and Yang, Y. H. and Yang, Y. P. and Yu, W. and Zhang, B. and Zhang, B.-B. and Zhou, D. J. and Zhu, W. W. and Castro-Tirado, A. J. and Dai, Z. G. and Ge, M. Y. and Hu, Y. D. and Li, C. K. and Li, Y. and Li, Z. and Liang, E. W. and Jia, S. M. and Querel, R. and Shao, L. and Wang, F. Y. and Wang, X. G. and Wu, X. F. and Xiong, S. L. and Xu, R. X. and Yang, Y.-S. and Zhang, G. Q. and Zhang, S. N. and Zheng, T. C. and Zou, J.-H.},
  journal  = {Nature},
  title    = {No pulsed radio emission during a bursting phase of a {Galactic} magnetar},
  year     = {2020},
  issn     = {0028-0836},
  month    = nov,
  pages    = {63--65},
  volume   = {587},
  abstract = {Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources4-13, but no convincing evidence has been collected so far14. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft γ-ray bursts15. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft γ-ray/hard-X-ray flare18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-γ-ray repeater (SGR) bursts were detected in γ-ray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.},
  doi      = {10.1038/s41586-020-2839-y},
  file     = {Full Text PDF:https\://ui.adsabs.harvard.edu/link_gateway/2020Natur.587...63L/ARTICLE:application/pdf},
  url      = {http://adsabs.harvard.edu/abs/2020Natur.587...63L},
  urldate  = {2021-02-10},
}

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