{"id":608269,"date":"2019-04-15T10:27:19","date_gmt":"2019-04-15T14:27:19","guid":{"rendered":"https:\/\/ntrs.nasa.gov\/search.jsp?R=20190002387"},"modified":"2019-04-15T10:27:19","modified_gmt":"2019-04-15T14:27:19","slug":"nicer-discovers-mhz-oscillations-in-the-clocked-burster-gs-1826-238","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=608269","title":{"rendered":"NICER Discovers mHz Oscillations in the &#8220;Clocked&#8221; Burster GS 1826-238"},"content":{"rendered":"<p>Abstract: We report the discovery with the Neutron Star Interior Composition Explorer (NICER) of mHz X-ray brightness oscillations from the &#8220;clocked burster&#8221; GS 1826-238. NICER observed the source in the periods 2017 June 20\u201329, July 11\u201313, and September 9\u201315, for a total useful exposure of 34 ks. Two consecutive dwells obtained on 2017 September 9 revealed highly significant oscillations at a frequency of 8 mHz. The fractional, sinusoidal modulation amplitude increases from 0.7% at 1 keV to \u02dc2% at 6 k&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: We report the discovery with the Neutron Star Interior Composition Explorer (NICER) of mHz X-ray brightness oscillations from the &#8220;clocked burster&#8221; GS 1826-238. NICER observed the source in the periods 2017 June 20&ndash;29, July 11&ndash;13, and September 9&ndash;15, for a total useful exposure of 34 ks. Two consecutive dwells obtained on 2017 September 9 revealed highly significant oscillations at a frequency of 8 mHz. The fractional, sinusoidal modulation amplitude increases from 0.7% at 1 keV to &tilde;2% at 6 k&#8230;<\/p>\n","protected":false},"author":60,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-608269","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/608269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=608269"}],"version-history":[{"count":2,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/608269\/revisions"}],"predecessor-version":[{"id":609269,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/608269\/revisions\/609269"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=608269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=608269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=608269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}