Resonant nuclear reaction ²³ Mg (p, γ ) ²⁴ Al in strongly screening magnetized neutron star crust

Abstract

Based on the relativistic theory of superstrong magnetic field (SMF), by using three models of Lai (LD), Fushiki (FGP), and ours (LJ), we investigate the influence of SMFs due to strong electron screening (SES) on the nuclear reaction 23 Mg (p, γ) 24 Al in magnetars. At relatively low density environment (e.g., ρ 7 < 0.01) and 1 < B 12 < 10 2 , our screening rates are in good agreement with those of LD and FGP. However, in relatively high magnetic fields (e.g., B 12 > 10 2 ), our reaction rates can be 1.58 times and about three orders of magnitude larger than those of FGP and LD, respectively (B 12 , ρ 7 are in units of 10 12 G, 10The significant increase of strongly screening rates can imply that more 23 Mg will escape from the Ne-Na cycle due to SES in a SMF. As a consequence, the next reaction 24 Al (β + , ν) 24 Mg will produce more 24 Mg to participate in the Mg-Al cycle. Thus, it may lead to synthesize a large amount of production of A > 20 nuclides in magnetars, respectively.

Ab Initio Phase Diagram of Tungsten

“…In either case, the corresponding fast recrystallization lines have been misinterpreted vs. experimental [37,44,46,47] and other theoretical [45] data. [52][53][54][55], the low-pressure melting data of Ref. [33], and the experimental shock melting datapoint [30].…”

“…Both the five bcc-W melting points and the melting curve (8) are shown in Fig. 3 and compared to experiment [30,33], the calculated Hugoniot of W [51], and other theoretical calculations [52][53][54][55].…”

New insights into the limit of the magnetic monopole flux and the heating source in white dwarfs*

“…We also are interested in the problem of MMs and other related issues ((e.g., Liu. [17,18], Liu & Gu [19], Liu et al [20], Liu [21−26], Peng et al [27,28]).…”

The Influence of Velocity-dependent Correction Factor on Proton Decay Reactions in Massive White Dwarfs

“…Issues related to MMs are forefront subjects in astrophysics (e.g., Detrixhe et al 2011;Rajantie 2012;Fujii & Pierre 2015;Frank et al 2019;Kain 2019). We studied the problem of MMs and other related issues (e.g., Peng et al 2017Peng et al , 2020Liu 2013Liu , 2014Liu & Gu 2016a;Liu & Liu 2017c, 2018aLiu 2016b;Liu & Liu 2016c;Liu 2016d;Liu et al 2017aLiu et al , 2017bLiu & Liu 2018b). Some scholars also discussed other energy mechanisms of WDs, such as magnetic field evolution, the state equation of the WDs and related issues (e.g., Deng et al 2020Deng et al , 2021Li et al 2016;Fu et al 2020;Gao et al 2016Gao et al , 2017Gao et al , 2019Gao et al , 2023Dong et al 2023;Wang et al 2020;Yan et al 2021;Zhu et al 2016).…”