Dark matter supporting traversable wormholes in the Galactic halo

IF 1.9 4区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS New Astronomy Pub Date : 2024-01-20 DOI:10.1016/j.newast.2023.102183
Susmita Sarkar , Nayan Sarkar , Somi Aktar , Moumita Sarkar , Farook Rahaman , Anil Kumar Yadav
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Abstract

We study the Morris-Thorne traversable asymptotically flat and non-flat wormholes in the galactic halo of the Milky Way Galaxy(MWG) based on the Einasto dark matter(DM) density profile. Our reported shape function is positive and increasing in nature, moreover, satisfies all the essential wormhole representing conditions i.e. the reported shape function forms wormhole like structures in the galactic halo region of the MWG. Furthermore, the wormhole containing the DM candidate of the halo shelters wormholes by violating the null energy condition(NEC) with respect to three different redshift functions. The wormholes, namely, WH1 and WH2 corresponding to the first two choices of redshift functions are asymptotically flat while the WH3 corresponding to the third choice of redshift function is asymptotically non-flat. We, here, also analyze the ANEC violating matter content, embedding surface, and proper radial distance for our solutions.

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暗物质支持银河系光环中可穿越的虫洞
我们根据艾纳斯托暗物质(DM)密度曲线,研究了银河系(MWG)星系晕中可穿越的莫里斯-索恩渐近平坦和非平坦虫洞。我们所报告的形状函数是正的,并且在性质上是递增的,此外,还满足所有基本的虫洞代表条件,即所报告的形状函数在银河系光晕区域形成了类似虫洞的结构。此外,包含光环中DM候选者的虫洞通过违反三种不同红移函数的空能条件(NEC)来庇护虫洞。与前两种红移函数相对应的虫洞,即WH1和WH2是渐近平坦的,而与第三种红移函数相对应的WH3则是渐近不平坦的。在此,我们还分析了我们的解决方案的ANEC违反物质含量、嵌入表面和适当的径向距离。
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来源期刊
New Astronomy
New Astronomy 地学天文-天文与天体物理
CiteScore
4.00
自引率
10.00%
发文量
109
审稿时长
13.6 weeks
期刊介绍: New Astronomy publishes articles in all fields of astronomy and astrophysics, with a particular focus on computational astronomy: mathematical and astronomy techniques and methodology, simulations, modelling and numerical results and computational techniques in instrumentation. New Astronomy includes full length research articles and review articles. The journal covers solar, stellar, galactic and extragalactic astronomy and astrophysics. It reports on original research in all wavelength bands, ranging from radio to gamma-ray.
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