Possible Existence of Dark Matter Admixed Pulsar in M31 and M87 Galaxies

Possible Existence of Dark Matter Admixed Pulsar in M31 and M87 Galaxies | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Possible Existence of Dark Matter Admixed Pulsar in M31 and M87 Galaxies Sulagna Mondal, Sajahan Molla, Prabir Kumar Halder, Mehedi Kalam This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4483966/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In previous studies (S Molla et al. Eur Phys J Plus 135:362, 2020; N Rahman et al. Eur Phys J Plus 135:637, 2020; N Rahman et al. Universe 8:652, 2022) the possible existence dark matter admixed pulsar have been discussed based on three different dark matter density profiles, Singular Isothermal Sphere density profile, Universal Rotational Curve density profile and Navarro-Frenk-White density profile. They have been used to discuss the pulsars present in our Milky Way galaxy as well as some satellite dwarf galaxies of Milky Way. In this article we use the Universal Rotational Curve (URC) dark matter density profile to observe similar effects on galaxies M31 and M87. These study hold significant importance, as now it can be concluded that there is a fair possibility of presence of dark matter admixed pulser in M31 and M87 galaxies as well. compact star dark matter mass function radius compactness red-shift Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4483966","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":311908681,"identity":"8434daf6-dfc7-4814-8f59-227219a69f16","order_by":0,"name":"Sulagna Mondal","email":"","orcid":"","institution":"Amity University","correspondingAuthor":false,"prefix":"","firstName":"Sulagna","middleName":"","lastName":"Mondal","suffix":""},{"id":311908682,"identity":"64f317db-39c3-4f76-8e1e-cac1e0f472f5","order_by":1,"name":"Sajahan Molla","email":"","orcid":"","institution":"New Alipore College","correspondingAuthor":false,"prefix":"","firstName":"Sajahan","middleName":"","lastName":"Molla","suffix":""},{"id":311908683,"identity":"9ef22590-8c4e-4302-b39a-c51a80d19d4b","order_by":2,"name":"Prabir Kumar Halder","email":"","orcid":"","institution":"Cooch Behar Panchanan Barma University","correspondingAuthor":false,"prefix":"","firstName":"Prabir","middleName":"Kumar","lastName":"Halder","suffix":""},{"id":311908684,"identity":"07c406c7-4b21-4c25-acf1-a1a562819813","order_by":3,"name":"Mehedi Kalam","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABDElEQVRIiWNgGAWjYBACCQbmBgaGCgjnAJhkhnB4cGthBGo5A9OSQKwWxjYYN4EIh0m2H2z8dHOenb18e/PDAz9/2NgzsPMYfvhRwyBjjkOLNE9is3TutuTEDWeOGRzsSUhLbGDmMZbsOcbAY9mAXYscQ2IDUAtzgoFEDsMBnoTDCQzMPGYMPGwMPAYHcGjhf9j8O3dOvb38jByGg38S/tuDtDD++Ydbi7REYpt0bsNhxoYbOQyHeRIOMAIdZsbM24Zbi+SMh23WOceOg/1yWCYtObGNma1YWrZPAqcWifPJh2/n1FSDQuzxxzc2dvb8/Ic3fnzzzcYelxZMwAY1i1j1o2AUjIJRMAqwAACCb1Tnr1GKaAAAAABJRU5ErkJggg==","orcid":"","institution":"Aliah University","correspondingAuthor":true,"prefix":"","firstName":"Mehedi","middleName":"","lastName":"Kalam","suffix":""}],"badges":[],"createdAt":"2024-05-27 09:49:50","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4483966/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4483966/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":59957900,"identity":"55b02498-40f4-4381-8b3d-62f79b7f7254","added_by":"auto","created_at":"2024-07-09 21:20:59","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":497817,"visible":true,"origin":"","legend":"","description":"","filename":"PulsarURCOtherGalaxyAstrophysicsSpaceSc.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4483966/v1_covered_1d69cea5-d3d4-4778-a34f-cf7f85b54736.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Possible Existence of Dark Matter Admixed Pulsar in M31 and M87 Galaxies","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"compact star, dark matter, mass function, radius, compactness, red-shift","lastPublishedDoi":"10.21203/rs.3.rs-4483966/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4483966/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"In previous studies (S Molla et al. 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