Discovery of a 136 Millisecond Radio and X-Ray Pulsar in Supernova Remnant G54.1+0.3
| dc.contributor.author | Camilo, F. | |
| dc.contributor.author | Lorimer, D. R. | |
| dc.contributor.author | Bhat, N. D. R. | |
| dc.contributor.author | Gotthelf, E. V. | |
| dc.contributor.author | Halpern, J. P. | |
| dc.contributor.author | Wang, Q. D. | |
| dc.contributor.author | Lu, F. J. | |
| dc.contributor.author | Mirabal, N. | |
| dc.date.accessioned | 2020-09-09T16:56:45Z | |
| dc.date.available | 2020-09-09T16:56:45Z | |
| dc.date.issued | 2002-06-26 | |
| dc.description.abstract | We report the discovery of a pulsar with period P = 136 ms and dispersion measure 308 cm⁻³ pc in a deep observation of the supernova remnant (SNR) G54.1+0.3 with the Arecibo radio telescope. Timing measurements of the new pulsar, J1930+1852, reveal a characteristic age of P/2img1.gif = 2900 yr and a spin-down luminosity of img2.gif = 1.2 × 10³⁷ ergs s⁻¹. We have subsequently searched archival ASCA X-ray data of this SNR and detect pulsations with a consistent period. These findings ensure that PSR J1930+1852 is the pulsar that powers the "Crab-like" SNR G54.1+0.3. Together with existing Chandra observations of the SNR, we derive an X-ray pulsed fraction (2-10 keV) of ≈27%. We also find that the cooling efficiency of the pulsar wind nebula (PWN) is intermediate between those of the Vela and Crab PWNe: LX(2-10 keV) ~ 0.002img2.gif. PSR J1930+1852 is a very weak radio source, with a period-averaged flux density at 1180 MHz of 60 μJy. For a distance of 5 kpc, its luminosity, ~1 mJy kpc², is among the lowest for known young pulsars. | en_US |
| dc.description.sponsorship | We thank Joe Taylor and Joel Weisberg for generously giving us some of their telescope time for the original radio observation, and John Harmon for scheduling it. We are also grateful to Shri Kulkarni for designing the ASCA observation, and to Jeff Hagen, Bill Sisk and Andy Dowd for their sterling work in realizing the potential for wide-band pulsar observations with the upgraded Arecibo telescope. We acknowledge useful discussions on beaming geometry with Michael Kramer. The Arecibo Observatory is part of the National Astronomy and Ionosphere Center, which is operated by Cornell University under a cooperative agreement with the National Science Foundation. This work was funded in part by grants from SAO (GO1-2063X: FC; GO1-2068X: QDW & FJL) and NASA (LTSA NAG 5-7935: EVG). DRL is a University Research Fellow funded by the Royal Society. FJL is partially supported by the Special Funds for Major State Basic Research Projects of China. | en_US |
| dc.description.uri | https://iopscience.iop.org/article/10.1086/342351 | en_US |
| dc.format.extent | 5 pages | en_US |
| dc.genre | journal articles preprints | en_US |
| dc.identifier | doi:10.13016/m2gsup-vwyp | |
| dc.identifier.citation | F. Camilo et al., Discovery of a 136 Millisecond Radio and X-Ray Pulsar in Supernova Remnant G54.1+0.3, ApJ 574 L71 (2002), doi: https://doi.org/10.1086/342351 | en_US |
| dc.identifier.uri | https://doi.org/10.1086/342351 | |
| dc.identifier.uri | http://hdl.handle.net/11603/19618 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | IOP | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Joint Center for Earth Systems Technology (JCET) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | © 2002. The American Astronomical Society. All rights reserved. | |
| dc.title | Discovery of a 136 Millisecond Radio and X-Ray Pulsar in Supernova Remnant G54.1+0.3 | en_US |
| dc.type | Text | en_US |