{"id":4580,"date":"2018-09-08T15:35:10","date_gmt":"2018-09-08T13:35:10","guid":{"rendered":"https:\/\/www.oa-cagliari.inaf.it\/seminari\/polarimetria-del-dataset-di-nanograv-di-arecibo\/"},"modified":"2025-09-22T23:13:38","modified_gmt":"2025-09-22T21:13:38","slug":"polarimetria-del-dataset-di-nanograv-di-arecibo","status":"publish","type":"seminari","link":"https:\/\/www.oa-cagliari.inaf.it\/en\/seminars\/polarimetria-del-dataset-di-nanograv-di-arecibo\/","title":{"rendered":"Polarimetry of NANOGrav\u2019s Arecibo Dataset"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1489\" src=\"https:\/\/www.oa-cagliari.inaf.it\/wp-content\/uploads\/2025\/09\/Polarimetry-of-NANOGravs-Arecibo-Dataset.png\" alt=\"Polarimetria del dataset di NANOGrav di Arecibo\" width=\"500\" height=\"707\" srcset=\"https:\/\/www.oa-cagliari.inaf.it\/wp-content\/uploads\/2025\/09\/Polarimetry-of-NANOGravs-Arecibo-Dataset.png 500w, https:\/\/www.oa-cagliari.inaf.it\/wp-content\/uploads\/2025\/09\/Polarimetry-of-NANOGravs-Arecibo-Dataset-212x300.png 212w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>It is often said that pulsars can be used as tools, and this talk will discuss one of the newest ways that this characterization is true. As part of NANOGrav\u2019s timing campaign to detect gravitational waves, we observe some of the brightest and most well-studied pulsars in the galaxy. This, coupled with pulsars\u2019 remarkable stability allows us to use them as calibrator sources, letting us detect and account for imperfections in the telescope\u2019s receiver.<\/p>\n<p>We have applied this method to NANOGrav\u2019s observations with the Arecibo Observatory, resulting in one of the most sensitive sets of polarimetric profiles available. As a product of the Faraday rotation caused by the ionized interstellar medium, we are also able to use this data set to measure the galactic magnetic field parallel to the lines of sight to the brightest of these sources. The sensitivity of this data set also allows us to detect profile \u201cmicrocomponents\u201d, that is, profile components with intensities less than 100 times fainter than the profile\u2019s peak intensity.<\/p>\n","protected":false},"template":"","class_list":["post-4580","seminari","type-seminari","status-publish","hentry","categorie_seminari-colloquium"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.oa-cagliari.inaf.it\/en\/wp-json\/wp\/v2\/seminari\/4580","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oa-cagliari.inaf.it\/en\/wp-json\/wp\/v2\/seminari"}],"about":[{"href":"https:\/\/www.oa-cagliari.inaf.it\/en\/wp-json\/wp\/v2\/types\/seminari"}],"wp:attachment":[{"href":"https:\/\/www.oa-cagliari.inaf.it\/en\/wp-json\/wp\/v2\/media?parent=4580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}