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Related papers: Nucleosynthesis in Type I X-ray Bursts

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Type-I X-ray bursts arise from unstable thermonuclear burning of accreted fuel on the surface of neutron stars. In this chapter we review the fundamental physics of the burning processes, and summarise the observational, numerical, and…

High Energy Astrophysical Phenomena · Physics 2021-01-20 Duncan K. Galloway , Laurens Keek

Many distinct classes of high-energy variability have been observed in astrophysical sources, on a range of timescales. The widest range (spanning microseconds-decades) is found in accreting, stellar-mass compact objects, including neutron…

High Energy Astrophysical Phenomena · Physics 2019-09-09 Duncan K. Galloway , Zac Johnston , Adelle Goodwin , Alexander Heger

We examine the sensitivity of nucleosynthesis in Type I X-ray bursts to variations in nuclear rates. As a large number of nuclear processes are involved in these phenomena -with the vast majority of reaction rates only determined…

Astrophysics · Physics 2008-06-19 Anuj Parikh , Jordi Jose , Fermin Moreno , Christian Iliadis

Classical nova explosions and type I X-ray bursts are the most frequent types of thermonuclear stellar explosions in the Galaxy. Both phenomena arise from thermonuclear ignition in the envelopes of accreting compact objects in close binary…

Solar and Stellar Astrophysics · Physics 2014-01-22 A. Parikh , J. Jose , G. Sala

Plasma accreted onto the surface of a neutron star can ignite due to unstable thermonuclear burning and produce a bright flash of X-ray emission called a Type-I X-ray burst. Such events are very common; thousands have been observed to date…

High Energy Astrophysical Phenomena · Physics 2017-12-27 N. Degenaar , D. R. Ballantyne , T. Belloni , M. Chakraborty , Y. -P. Chen , L. Ji , P. Kretschmar , E. Kuulkers , J. Li , T. J. Maccarone , J. Malzac , S. Zhang , S. -N. Zhang

Burst oscillations, a phenomenon observed in a significant fraction of Type I (thermonuclear) X-ray bursts, involve the development of highly asymmetric brightness patches in the burning surface layers of accreting neutron stars.…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Anna L. Watts

Type I X-ray bursts are violent stellar events that take place on the H/He-rich envelopes of accreting neutron stars. We have investigated the role played by uncertainties in nuclear processes on the nucleosynthesis accompanying these…

Astrophysics · Physics 2009-11-13 Anuj Parikh , Jordi Jose , Fermin Moreno , Christian Iliadis

Hydrogen and helium accreted onto a neutron star undergo thermonuclear burning. Explosive burning is observed as a type I X-ray burst. We describe the different burning regimes and focus on some of the current inconsistencies between theory…

Astrophysics · Physics 2010-04-30 L. Keek , J. J. M. in 't Zand

Nuclear astrophysics aims at unraveling the cosmic origins of chemical elements and the physical processes powering stars. It constitutes a truly multidisciplinary field, that integrates tools, advancements, and accomplishments from…

Solar and Stellar Astrophysics · Physics 2026-01-23 Jordi Jose

Observations of Type I X-ray bursts have long been taken as evidence that the sources are neutron stars. Black body models approximate the spectral data and imply a suddenly heated neutron star cooling over characteristic times of seconds…

Astrophysics · Physics 2009-10-31 Jean H. Swank

Thermonuclear X-ray bursts from the surface of accreting neutron stars are the most common astrophysical explosions in our galaxy. They provide a unique window into the physics of neutron stars, the physics of matter under extreme…

High Energy Astrophysical Phenomena · Physics 2026-03-06 Yi Xu , Hendrik Schatz , Rita Lau , Zach Meisel , Peter Mohr

Neutron stars in mass-transferring binaries are accreting the hydrogen and helium rich matter from the surfaces of their companions. This article simply explains the physics associated with how that material eventually fuses to form heavier…

Astrophysics · Physics 2007-05-23 Lars Bildsten

Type I X-ray bursts are thermonuclear flashes on the surface of accreting neutron stars, involving hundreds of nuclei and thousands of reactions with larger uncertainties in reaction rate. To investigate the impact of nuclear reaction rate…

High Energy Astrophysical Phenomena · Physics 2026-03-12 Qing Wang , Ertao Li , Zhihong Li , Youbao Wang , Bing Guo , Yunju Li , Jun Su , Shipeng Hu , Yinwen Guan , Dong Xiang , Yu Liu , Lei Yang , Weiping Liu

Type I X-ray bursts are thermonuclear stellar explosions driven by charged-particle reactions. In the regime for combined H/He-ignition, the main nuclear flow is dominated by the rp-process (rapid proton-captures and beta+ decays), the 3…

Solar and Stellar Astrophysics · Physics 2015-05-19 Jordi Jose , Fermin Moreno , Anuj Parikh , Christian Iliadis

Since the advent of powerful new X-ray observatories, NASA's Rossi X-ray Timing Explorer (RXTE), the Italian - Dutch BeppoSAX mission, XMM-Newton and Chandra, a number of entirely new phenomena associated with thermonuclear burning on…

Astrophysics · Physics 2007-05-23 Tod Strohmayer , Lars Bildsten

Type I X-ray bursts are thermonuclear explosions on the neutron star (NS) surface caused by mass accretion from a companion star. Observations of X-ray bursts provide valuable information on X-ray binary systems, e.g., binary parameters,…

High Energy Astrophysical Phenomena · Physics 2022-01-06 A. Dohi , N. Nishimura , M. Hashimoto , Y. Matsuo , T. Noda , S. Nagataki

I review our understanding of the thermonuclear instabilities on accreting neutron stars that produce Type I X-Ray bursts. I emphasize those observational and theoretical aspects that should interest the broad audience of this meeting. The…

Astrophysics · Physics 2009-10-31 Lars Bildsten

Type-I X-ray bursts are thermonuclear explosions caused by the unstable burning of accreted material on the surface of neutron stars. We report the detection of seven type-I X-ray bursts from the ultracompact X-ray binary M15 X-2 observed…

High Energy Astrophysical Phenomena · Physics 2025-03-07 María Alejandra Díaz Teodori , Jari J. E. Kajava , Celia Sánchez-Fernández , Andrea Sanna , Mason Ng , Juri Poutanen

Thermonuclear flashes of hydrogen and helium accreted onto neutron stars produce the frequently observed Type I X-ray bursts. It is the current paradigm that almost all material burns in a burst, after which it takes hours to accumulate…

High Energy Astrophysical Phenomena · Physics 2017-06-28 L. Keek , A. Heger

I review our theoretical understanding of thermonuclear flashes on accreting neutron stars, concentrating on comparisons to observations. Sequences of regular Type I X-ray bursts from GS 1826-24 and 4U 1820-30 are very well described by the…

Astrophysics · Physics 2009-11-10 Andrew Cumming
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