Publicación:
CALLISTO facilities in Peru: spectrometer commissioning and observations of type III solar radio bursts
CALLISTO facilities in Peru: spectrometer commissioning and observations of type III solar radio bursts
| dc.contributor.author | Alonso Rengifo, Javier | es_PE |
| dc.contributor.author | Loaiza-Tacuri, Veronica | es_PE |
| dc.contributor.author | Bazo, Jose | es_PE |
| dc.contributor.author | Guevara Day, Walter Robert | es_PE |
| dc.date.accessioned | 2024-05-30T23:13:38Z | |
| dc.date.available | 2024-05-30T23:13:38Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | The Astrophysics Directorate of CONIDA has installed two radio spectrometer stations belonging to the e-CALLISTO network in Lima, Peru. Given their strategic location near the Equator, it is possible to observe the Sun evenly throughout the whole year. The receiver located at Pucusana, nearby the capital city of Lima, took data from October 2014 until August 2016 in the metric and decimetric bands looking for radio bursts. During this period, this e-CALLISTO detector was unique in its time-zone coverage. To asses the suitability of the sites and the performance of the antennas, we analyzed the radio ambient background and measured their radiation pattern and beamwidth. To demonstrate the capabilities of the facilities for studying solar dynamics in these radio frequencies, we have selected and analyzed type III Solar Radio Bursts. The study of this kind of burst helps to understand the electron beams traversing the solar corona and the solar atmospheric density. We have characterized the most common radio bursts with the following mean values: a negative drift rate of -25.8 +/- 3.7 MHz s(-1), a duration of 2.6 +/- 0.3 s and 35 MHz bandwidth in the frequency range of 114 to 174 MHz. In addition, for some events, it was possible to calculate a global frequency drift which on average was 0.4 +/- 0.1 MHz s(-1). | |
| dc.description.sponsorship | J. R. appreciates the support from the Peruvian National Council for Science, Technology and Technological Innovation scholarship under Grant 23-2015-FONDECyT and thanks Fernando Valle's help in the installation of CALLISTO. J. B. thanks the Direccion de Gestion de la Investigacion (DGI - PUCP) for funding under Grant No. DGI-2019-3-0044. We thank the Air Force electronic laboratory SELEC for the tests done at their facilities and the Institute for Data Science FHNW Brugg/Windisch, Switzerland for providing data from the e-CALLISTO network. We also wish to thank C. Consolandi, F. Valle and S. della Torre for reading the manuscript and their useful suggestions. We specially thank C. Monstein for his help and suggestions in the analysis of the e-CALLISTO data and also for reading the manuscript. | |
| dc.identifier.doi | https://doi.org/10.1088/1674-4527/21/6/145 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12390/2922 | |
| dc.language.iso | eng | |
| dc.publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES | |
| dc.relation.ispartof | RESEARCH IN ASTRONOMY AND ASTROPHYSICS | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Sun | |
| dc.subject | instrumentation | es_PE |
| dc.subject | radio radiation | es_PE |
| dc.subject.ocde | https://purl.org/pe-repo/ocde/ford#1.03.03 | |
| dc.title | CALLISTO facilities in Peru: spectrometer commissioning and observations of type III solar radio bursts | |
| dc.type | info:eu-repo/semantics/article | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | #PLACEHOLDER_PARENT_METADATA_VALUE# | |
| oairecerif.author.affiliation | #PLACEHOLDER_PARENT_METADATA_VALUE# | |
| oairecerif.author.affiliation | #PLACEHOLDER_PARENT_METADATA_VALUE# | |
| oairecerif.author.affiliation | #PLACEHOLDER_PARENT_METADATA_VALUE# | |
| oairecerif.author.affiliation | #PLACEHOLDER_PARENT_METADATA_VALUE# |