Quasi-thermal Noise Spectroscopy Analysis of Parker Solar Probe Data: Improved Electron Density Model for Solar Wind
| dc.contributor.author | Kruparova, Oksana | |
| dc.contributor.author | Krupar, Vratislav | |
| dc.contributor.author | Szabo, Adam | |
| dc.contributor.author | Pulupa, Marc | |
| dc.contributor.author | Bale, Stuart D. | |
| dc.date.accessioned | 2023-11-08T15:51:08Z | |
| dc.date.available | 2023-11-08T15:51:08Z | |
| dc.date.issued | 2023-10-20 | |
| dc.description.abstract | We present a comprehensive analysis of electron density measurements in the solar wind using quasi-thermal noise (QTN) spectroscopy applied to data from the first 15 encounters of the Parker Solar Probe mission (2018 November–2023 March). Our methodology involves the identification of the plasma line frequency and the calculation of plasma density based on in situ measurements. By analyzing over 2.1 million data points, we derive a power-law model for electron density as a function of radial distance from the Sun in the range of 13 to 50 R☉: nₑ(r) = (343,466 ± 19921) × r⁽−¹·⁸⁷±⁰·¹¹⁾. This model provides improved estimates for localizing interplanetary solar radio bursts. Moreover, obtained electron densities can be used for calibrating particle instruments on board the Parker Solar Probe. We discuss its limitations and potential for further refinement with additional Parker Solar Probe encounters. | en_US |
| dc.description.sponsorship | The Parker Solar Probe was designed, built, and is now operated by the Johns Hopkins Applied Physics Laboratory as part of NASA's Living with a Star (LWS) program (contract NNN06AA01C). Support from the LWS management and technical team has played a critical role in the success of the Parker Solar Probe mission. The FIELDS instrument suite was designed and built and is operated by a consortium of institutions including the University of California, Berkeley, University of Minnesota, University of Colorado, Boulder, NASA/GSFC, CNRS/LPC2E, University of New Hampshire, University of Maryland, UCLA, IFRU, Observatoire de Meudon, Imperial College, London, and Queen Mary University of London. | en_US |
| dc.description.uri | https://iopscience.iop.org/article/10.3847/1538-4357/acf572 | en_US |
| dc.format.extent | 6 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m26pqo-3lbf | |
| dc.identifier.citation | Kruparova, Oksana, Vratislav Krupar, Adam Szabo, Marc Pulupa, and Stuart D. Bale. “Quasi-Thermal Noise Spectroscopy Analysis of Parker Solar Probe Data: Improved Electron Density Model for Solar Wind.” The Astrophysical Journal 957, no. 1 (October 2023): 13. https://doi.org/10.3847/1538-4357/acf572. | en_US |
| dc.identifier.uri | https://doi.org/10.3847/1538-4357/acf572 | |
| dc.identifier.uri | http://hdl.handle.net/11603/30594 | |
| 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 Goddard Planetary Heliophysics Institute (GPHI) | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | en_US |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | Quasi-thermal Noise Spectroscopy Analysis of Parker Solar Probe Data: Improved Electron Density Model for Solar Wind | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0002-1122-6422 | en_US |
| dcterms.creator | https://orcid.org/0000-0001-6185-3945 | en_US |