{"title":"The Crucial Discovery of Thermonuclear X-Ray Bursts: Never Throw Away Old Data!","authors":"Erik Kuulkers","doi":"10.1002/asna.20240108","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>The discovery of Type I x-ray bursts is attributed to those seen by the Astronomical Netherlands Satellite (ANS) in September 1975 from the globular cluster NGC 6624 containing the x-ray source 4U 1820-303. I revisit these x-ray bursts, by reanalyzing data from the Soft X-ray Experiment (SXX) onboard ANS, which were stored on microfiche. Earlier accounts of x-ray bursts had been reported; the first Type I x-ray burst recorded is the one observed by Vela 5B from Cen X-4 in July 1969.</p>\n </div>","PeriodicalId":55442,"journal":{"name":"Astronomische Nachrichten","volume":"346 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astronomische Nachrichten","FirstCategoryId":"101","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/asna.20240108","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract
The discovery of Type I x-ray bursts is attributed to those seen by the Astronomical Netherlands Satellite (ANS) in September 1975 from the globular cluster NGC 6624 containing the x-ray source 4U 1820-303. I revisit these x-ray bursts, by reanalyzing data from the Soft X-ray Experiment (SXX) onboard ANS, which were stored on microfiche. Earlier accounts of x-ray bursts had been reported; the first Type I x-ray burst recorded is the one observed by Vela 5B from Cen X-4 in July 1969.
期刊介绍：
Astronomische Nachrichten, founded in 1821 by H. C. Schumacher, is the oldest astronomical journal worldwide still being published. Famous astronomical discoveries and important papers on astronomy and astrophysics published in more than 300 volumes of the journal give an outstanding representation of the progress of astronomical research over the last 180 years. Today, Astronomical Notes/ Astronomische Nachrichten publishes articles in the field of observational and theoretical astrophysics and related topics in solar-system and solar physics. Additional, papers on astronomical instrumentation ground-based and space-based as well as papers about numerical astrophysical techniques and supercomputer modelling are covered. Papers can be completed by short video sequences in the electronic version. Astronomical Notes/ Astronomische Nachrichten also publishes special issues of meeting proceedings.
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