Energy transfer from baryons to dark matter as a unified solution to small-scale structure issues of the Lambda CDM model

doi:10.1103/PhysRevD.98.063517

	Energy transfer from baryons to dark matter as a unified solution to small-scale structure issues of the Lambda CDM model
	Del Popolo, A.1,2,3; Pace, Francesco 4; Le Delliou, Morgan 5,6; Lee, Xiguo 2
刊名	PHYSICAL REVIEW D
	2018-09-13
卷号	98 期号:6 页码:063517
ISSN号	2470-0010
DOI	10.1103/PhysRevD.98.063517
英文摘要	Using a semianalytic code, we show how baryon physics in a.CDM cosmology could solve the discrepancy between numerical predictions of dark matter haloes and observations, ranging from dwarf galaxies to clusters, without the need of nonstandard dark matter models as advocated, for example, by [Kaplinghat et al., Phys. Rev. Lett. 116, 041302, (2016)]. Combining well established results, we show, for the first time, how accounting for baryon physics, in particular dynamical friction mechanisms, leads to flat galaxy-cluster profiles and correlations in several of their properties, solves the so-called "diversity problem" and reproduces very well the challenging, extremely low-rising rotation curve of IC2574. We, therefore, suggest treating baryonic physics properly before introducing new exotic features, albeit legitimate, in the standard cosmological model.
资助项目	President's International Fellowship Initiative[2017 VMA0044]
WOS关键词	DWARF SPHEROIDAL GALAXIES ; CUSP-CORE TRANSFORMATIONS ; GALACTIC NUCLEUS FEEDBACK ; SPHERICAL COLLAPSE MODEL ; HIGH-REDSHIFT GALAXIES ; DENSITY PROFILES ; COSMOLOGICAL SIMULATIONS ; DISK GALAXIES ; GIANT CLUMPS ; GRAVITATIONAL COLLAPSE
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000444600000003
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/59670]
专题	中国科学院近代物理研究所
作者单位	1.Univ Catania, Dipartimento Fis & Astron, Viale Andrea Doria 6, I-95125 Catania, Italy 2.Chinese Acad Sci, Inst Modern Phys, POB 31, Lanzhou 730000, Gansu, Peoples R China 3.Ist Nazl Fis Nucl, Sez Catania, Via S Sofia 64, I-95123 Catania, Italy 4.Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England 5.Lanzhou Univ, Inst Theoret Phys, Phys Dept, 222 South Tianshui Rd, Lanzhou 730000, Gansu, Peoples R China 6.Univ Lisbon, Fac Ciencias, Inst Astrofis & Ciencias Espaco, Ed C8, P-1769016 Lisbon, Portugal
推荐引用方式 GB/T 7714	Del Popolo, A.,Pace, Francesco,Le Delliou, Morgan,et al. Energy transfer from baryons to dark matter as a unified solution to small-scale structure issues of the Lambda CDM model[J]. PHYSICAL REVIEW D,2018,98(6):063517.
APA	Del Popolo, A.,Pace, Francesco,Le Delliou, Morgan,&Lee, Xiguo.(2018).Energy transfer from baryons to dark matter as a unified solution to small-scale structure issues of the Lambda CDM model.PHYSICAL REVIEW D,98(6),063517.
MLA	Del Popolo, A.,et al."Energy transfer from baryons to dark matter as a unified solution to small-scale structure issues of the Lambda CDM model".PHYSICAL REVIEW D 98.6(2018):063517.