Matches in SemOpenAlex for { <https://semopenalex.org/work/W2891295847> ?p ?o ?g. }
- W2891295847 endingPage "160" @default.
- W2891295847 startingPage "160" @default.
- W2891295847 abstract "We present results from observations of the Galactic Center magnetar, PSR J1745–2900, at 2.3 and 8.4 GHz with the NASA Deep Space Network 70 m antenna, DSS-43. We study the magnetar's radio profile shape, flux density, radio spectrum, and single pulse behavior over a ∼1 year period between MJDs 57233 and 57621. In particular, the magnetar exhibits a significantly negative average spectral index of when the 8.4 GHz profile is single-peaked, which flattens considerably when the profile is double-peaked. We have carried out an analysis of single pulses at 8.4 GHz on MJD 57479 and find that giant pulses and pulses with multiple emission components are emitted during a significant number of rotations. The resulting single pulse flux density distribution is incompatible with a log-normal distribution. The typical pulse width of the components is ∼1.8 ms, and the prevailing delay time between successive components is ∼7.7 ms. Many of the single pulse emission components show significant frequency structure over bandwidths of ∼100 MHz, which we believe is the first observation of such behavior from a radio magnetar. We report a characteristic single pulse broadening timescale of at 8.4 GHz. We find that the pulse broadening is highly variable between emission components and cannot be explained by a thin scattering screen at distances ≳ 1 kpc. We discuss possible intrinsic and extrinsic mechanisms for the magnetar's emission and compare our results to other magnetars, high magnetic field pulsars, and fast radio bursts." @default.
- W2891295847 created "2018-09-27" @default.
- W2891295847 creator A5033056860 @default.
- W2891295847 creator A5033874437 @default.
- W2891295847 creator A5066377917 @default.
- W2891295847 creator A5077061734 @default.
- W2891295847 creator A5085085708 @default.
- W2891295847 date "2018-10-24" @default.
- W2891295847 modified "2023-10-16" @default.
- W2891295847 title "Pulse Morphology of the Galactic Center Magnetar PSR J1745–2900" @default.
- W2891295847 cites W1519557512 @default.
- W2891295847 cites W1573526496 @default.
- W2891295847 cites W1972013583 @default.
- W2891295847 cites W1977312499 @default.
- W2891295847 cites W1978610691 @default.
- W2891295847 cites W1988875030 @default.
- W2891295847 cites W1992106524 @default.
- W2891295847 cites W1995453855 @default.
- W2891295847 cites W2003916372 @default.
- W2891295847 cites W2009454723 @default.
- W2891295847 cites W2019510960 @default.
- W2891295847 cites W2031339869 @default.
- W2891295847 cites W2035073206 @default.
- W2891295847 cites W2041739233 @default.
- W2891295847 cites W2049468393 @default.
- W2891295847 cites W2049562508 @default.
- W2891295847 cites W2049698372 @default.
- W2891295847 cites W2053898561 @default.
- W2891295847 cites W2069722732 @default.
- W2891295847 cites W2070650982 @default.
- W2891295847 cites W2086630025 @default.
- W2891295847 cites W2088754872 @default.
- W2891295847 cites W2090891581 @default.
- W2891295847 cites W2091009532 @default.
- W2891295847 cites W2093985870 @default.
- W2891295847 cites W2094248183 @default.
- W2891295847 cites W2094620158 @default.
- W2891295847 cites W2101687185 @default.
- W2891295847 cites W2103416711 @default.
- W2891295847 cites W2115517418 @default.
- W2891295847 cites W2115903331 @default.
- W2891295847 cites W2126464317 @default.
- W2891295847 cites W2150587040 @default.
- W2891295847 cites W2151026679 @default.
- W2891295847 cites W2164575141 @default.
- W2891295847 cites W2165368202 @default.
- W2891295847 cites W2170269171 @default.
- W2891295847 cites W2207943758 @default.
- W2891295847 cites W2289905436 @default.
- W2891295847 cites W2293416137 @default.
- W2891295847 cites W2338515023 @default.
- W2891295847 cites W2545312649 @default.
- W2891295847 cites W2550372499 @default.
- W2891295847 cites W2563624843 @default.
- W2891295847 cites W2577231583 @default.
- W2891295847 cites W2614103346 @default.
- W2891295847 cites W2734564624 @default.
- W2891295847 cites W2782993241 @default.
- W2891295847 cites W2788994929 @default.
- W2891295847 cites W2789388218 @default.
- W2891295847 cites W2797460355 @default.
- W2891295847 cites W2807915844 @default.
- W2891295847 cites W2963730462 @default.
- W2891295847 cites W3098114531 @default.
- W2891295847 cites W3098188470 @default.
- W2891295847 cites W3098208184 @default.
- W2891295847 cites W3098253447 @default.
- W2891295847 cites W3098935537 @default.
- W2891295847 cites W3098960852 @default.
- W2891295847 cites W3099051975 @default.
- W2891295847 cites W3099280661 @default.
- W2891295847 cites W3099613684 @default.
- W2891295847 cites W3099828819 @default.
- W2891295847 cites W3100128280 @default.
- W2891295847 cites W3100675445 @default.
- W2891295847 cites W3100799333 @default.
- W2891295847 cites W3100839273 @default.
- W2891295847 cites W3100886190 @default.
- W2891295847 cites W3100950396 @default.
- W2891295847 cites W3102014803 @default.
- W2891295847 cites W3102860119 @default.
- W2891295847 cites W3103018940 @default.
- W2891295847 cites W3103665997 @default.
- W2891295847 cites W3104812970 @default.
- W2891295847 cites W3104974692 @default.
- W2891295847 cites W3105516769 @default.
- W2891295847 cites W3105757563 @default.
- W2891295847 cites W3106210156 @default.
- W2891295847 cites W3106395727 @default.
- W2891295847 cites W3122520482 @default.
- W2891295847 cites W3125306528 @default.
- W2891295847 cites W4213310639 @default.
- W2891295847 cites W4239953570 @default.
- W2891295847 cites W4292328865 @default.
- W2891295847 doi "https://doi.org/10.3847/1538-4357/aade4d" @default.
- W2891295847 hasPublicationYear "2018" @default.
- W2891295847 type Work @default.
- W2891295847 sameAs 2891295847 @default.