A Second Chromatic Timing Event of Interstellar Origin toward PSR J1713+0747

11 Dec 2017M. T. LamJ. A. EllisG. GrilloM. L. JonesJ. S. HazbounP. R. BrookJ. E. TurnerS. ChatterjeeJ. M. CordesT. J. W. LazioM. E. DeCesarZ. ArzoumanianH. BlumerH. T. CromartieP. B. DemorestT. DolchR. D. FerdmanE. C. FerraraE. FonsecaN. Garver-DanielsP. A. GentileV. GuptaD. R. LorimerR. S. LynchD. R. MadisonM. A. McLaughlinC. NgD. J. NiceT. T. PennucciS. M. RansomR. SpiewakI. H. StairsD. R. StinebringK. StovallJ. K. SwiggumS. J. VigelandW. W. Zhu

The frequency dependence of radio pulse arrival times provides a probe of structures in the intervening media. Demorest et al. 2013 was the first to show a short-term (~100-200 days) reduction in the electron content along the line of sight to PSR J1713+0747 in data from 2008 (approximately MJD 54750) based on an apparent dip in the dispersion measure of the pulsar... (read more)

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