P.J. Wang , Y.P. Chen , L. Ji , S. Zhang , S.N. Zhang , L.D. Kong , L. Zhang , L. Tao , J.L. Qu , M.Y. Ge , J. Li , Z. Chang , J.Q. Peng , Q.C. Shui , Z.S. Li
{"title":"Insight-HXMT发现的新毫秒脉冲星MAXI J1816-195的I型X射线暴演化过程","authors":"P.J. Wang , Y.P. Chen , L. Ji , S. Zhang , S.N. Zhang , L.D. Kong , L. Zhang , L. Tao , J.L. Qu , M.Y. Ge , J. Li , Z. Chang , J.Q. Peng , Q.C. Shui , Z.S. Li","doi":"10.1016/j.jheap.2024.02.004","DOIUrl":null,"url":null,"abstract":"<div><p>We report a study of the type-I X-ray bursts and persistent spectrum of the 2022 outburst of the newly discovered accreting millisecond pulsar MAXI J1816–195 observed by <em>Insight-HXMT</em>. The spectra of MAXI J1816–195 are similar to other accreting millisecond pulsars, i.e., a Comptonization shape with an electron temperature of ∼10 keV. We find that the profiles of type-I X-ray bursts, as well as their spectra, evolve during the outburst. The evolutionary pattern becomes varied towards the end phase of outburst, suggesting a potential correlation with alterations in the burst fuel or the ignition region. Moreover, we find a giant burst, for the first time, with a peak luminosity twice than others and a shorter burst duration. The complete burst sample derived from this research provides more clues in probing the thermonuclear bursts during the outburst of the accreting millisecond pulsar system.</p></div>","PeriodicalId":54265,"journal":{"name":"Journal of High Energy Astrophysics","volume":"41 ","pages":"Pages 106-113"},"PeriodicalIF":10.2000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Type-I X-ray burst evolution of the new millisecond pulsar MAXI J1816–195 revealed by Insight-HXMT\",\"authors\":\"P.J. Wang , Y.P. Chen , L. Ji , S. Zhang , S.N. Zhang , L.D. Kong , L. Zhang , L. Tao , J.L. Qu , M.Y. Ge , J. Li , Z. Chang , J.Q. Peng , Q.C. Shui , Z.S. Li\",\"doi\":\"10.1016/j.jheap.2024.02.004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We report a study of the type-I X-ray bursts and persistent spectrum of the 2022 outburst of the newly discovered accreting millisecond pulsar MAXI J1816–195 observed by <em>Insight-HXMT</em>. The spectra of MAXI J1816–195 are similar to other accreting millisecond pulsars, i.e., a Comptonization shape with an electron temperature of ∼10 keV. We find that the profiles of type-I X-ray bursts, as well as their spectra, evolve during the outburst. The evolutionary pattern becomes varied towards the end phase of outburst, suggesting a potential correlation with alterations in the burst fuel or the ignition region. Moreover, we find a giant burst, for the first time, with a peak luminosity twice than others and a shorter burst duration. The complete burst sample derived from this research provides more clues in probing the thermonuclear bursts during the outburst of the accreting millisecond pulsar system.</p></div>\",\"PeriodicalId\":54265,\"journal\":{\"name\":\"Journal of High Energy Astrophysics\",\"volume\":\"41 \",\"pages\":\"Pages 106-113\"},\"PeriodicalIF\":10.2000,\"publicationDate\":\"2024-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of High Energy Astrophysics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214404824000107\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of High Energy Astrophysics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214404824000107","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
Type-I X-ray burst evolution of the new millisecond pulsar MAXI J1816–195 revealed by Insight-HXMT
We report a study of the type-I X-ray bursts and persistent spectrum of the 2022 outburst of the newly discovered accreting millisecond pulsar MAXI J1816–195 observed by Insight-HXMT. The spectra of MAXI J1816–195 are similar to other accreting millisecond pulsars, i.e., a Comptonization shape with an electron temperature of ∼10 keV. We find that the profiles of type-I X-ray bursts, as well as their spectra, evolve during the outburst. The evolutionary pattern becomes varied towards the end phase of outburst, suggesting a potential correlation with alterations in the burst fuel or the ignition region. Moreover, we find a giant burst, for the first time, with a peak luminosity twice than others and a shorter burst duration. The complete burst sample derived from this research provides more clues in probing the thermonuclear bursts during the outburst of the accreting millisecond pulsar system.
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The journal welcomes manuscripts on theoretical models, simulations, and observations of highly energetic astrophysical objects both in our Galaxy and beyond. Among those, black holes at all scales, neutron stars, pulsars and their nebula, binaries, novae and supernovae, their remnants, active galaxies, and clusters are just a few examples. The journal will consider research across the whole electromagnetic spectrum, as well as research using various messengers, such as gravitational waves or neutrinos. Effects of high-energy phenomena on cosmology and star-formation, results from dedicated surveys expanding the knowledge of extreme environments, and astrophysical implications of dark matter are also welcomed topics.
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