Relevant bibliographies by topics / Late Forming Dark Matter (LFDM)

Contents

  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Late Forming Dark Matter (LFDM)'

Author: Grafiati
Published: 6 September 2023
Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Late Forming Dark Matter (LFDM).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Late Forming Dark Matter (LFDM)"

1

Chakraborty, Amlan, Prolay K. Chanda, Kanhaiya Lal Pandey, and Subinoy Das. "Formation and Abundance of Late-forming Primordial Black Holes as Dark Matter." Astrophysical Journal 932, no. 2 (2022): 119. http://dx.doi.org/10.3847/1538-4357/ac6ddd.

Full text
Abstract:
Abstract We propose a novel mechanism where primordial black hole (PBH) dark matter is formed much later in the history of the universe, between the epochs of Big Bang nucleosynthesis and cosmic microwave background photon decoupling. In our setup, one does not need to modify the scale-invariant inflationary power spectra; instead, a late-phase transition in a strongly interacting fermion–scalar fluid (which occurs naturally around redshift 106 ≤ z T ≤ 108) creates an instability in the density perturbation as the sound speed turns imaginary. As a result, the dark matter perturbation grows exp
APA, Harvard, Vancouver, ISO, and other styles
2

Kong, Demao, Manoj Kaplinghat, Hai-Bo Yu, Filippo Fraternali, and Pavel E. Mancera Piña. "The Odd Dark Matter Halos of Isolated Gas-rich Ultradiffuse Galaxies." Astrophysical Journal 936, no. 2 (2022): 166. http://dx.doi.org/10.3847/1538-4357/ac8875.

Full text
Abstract:
Abstract We analyze circular velocity profiles of seven ultradiffuse galaxies (UDGs) that are isolated and gas-rich. Assuming that the dark matter halos of these UDGs have a Navarro–Frenk–White (NFW) density profile or a Read density profile (which allows for constant-density cores), the inferred halo concentrations are systematically lower than the cosmological median, even as low as −0.6 dex (about 5σ away) in some cases. Alternatively, similar fits can be obtained with a density profile that scales roughly as 1/r 2 for radii larger than a few kiloparsecs. Both solutions require the radius w
APA, Harvard, Vancouver, ISO, and other styles
3

Benavides, José A., Laura V. Sales, Mario G. Abadi, Mark Vogelsberger, Federico Marinacci, and Lars Hernquist. "Large Dark Matter Content and Steep Metallicity Profile Predicted for Ultradiffuse Galaxies Formed in High-spin Halos." Astrophysical Journal 977, no. 2 (2024): 169. https://doi.org/10.3847/1538-4357/ad8de8.

Full text
Abstract:
Abstract We study the stellar properties of a sample of simulated ultradiffuse galaxies (UDGs) with stellar mass M ⋆ = 107.5–109 M ⊙, selected from the TNG50 simulation, where UDGs form mainly in high-spin dwarf-mass halos. We divide our sample into star-forming and quenched UDGs, finding good agreement with the stellar assembly history measured in observations. Star-forming UDGs and quenched UDGs with M ⋆ ≥ 108 M ⊙ in our sample are particularly inefficient at forming stars, having 2–10 times less stellar mass than non-UDGs for the same virial mass halo. These results are consistent with rece
APA, Harvard, Vancouver, ISO, and other styles
4

Senapati, Sephalika, Bradley Kabes, and Helge Heinrich. "Ag2Al plates in Al–Ag alloys." International Journal of Materials Research 97, no. 3 (2006): 325–28. http://dx.doi.org/10.1515/ijmr-2006-0052.

Full text
Abstract:
Abstract The late stages of precipitation in aluminum-rich Al –Ag alloys with silver contents from 3 at.% to 22 at.% were studied with transmission electron microscopy. Shapes, sizes, and arrangements of plates of the stable hexagonal Ag2Al phase forming on {111} planes of the f.c.c. matrix were analysed. The high-angle annular dark-field contrast in scanning transmission electron microscopy is calibrated. This calibration allows for the quantitative measurement of plate thicknesses from high-angle annular dark-field scanning transmission electron micrographs of Ag2Al plates inclined to the el
APA, Harvard, Vancouver, ISO, and other styles
5

Ledinauskas, E., and K. Zubovas. "Reignited star formation in dwarf galaxies that were quenched during reionization." Astronomy & Astrophysics 615 (July 2018): A64. http://dx.doi.org/10.1051/0004-6361/201832824.

Full text
Abstract:
Context. Irregular dwarf galaxies of the Local Group have very varied properties and star formation histories. Some of them formed the majority of their stars very late compared to others. Extreme examples of this are Leo A and Aquarius, which reached the peak of star formation at z < 1 (more than 6 Gyr after the Big Bang). This fact seemingly challenges the ΛCDM cosmological framework because the dark matter halos of these galaxies on average should assemble the majority of their masses before z ~ 2 (<3 Gyr after the Big Bang). Aims. We investigate whether the delayed star formation his
APA, Harvard, Vancouver, ISO, and other styles
6

BOCHNER, BRETT. "COSMIC ACCELERATION AND CONCORDANCE FROM CAUSAL BACKREACTION WITH RECURSIVE NONLINEARITIES." International Journal of Modern Physics D 22, no. 13 (2013): 1330026. http://dx.doi.org/10.1142/s0218271813300267.

Full text
Abstract:
We review the causal backreaction paradigm, in which the need for Dark Energy is eliminated via the generation of an apparent cosmic acceleration from the causal flow of inhomogeneity information coming in from distant structure-forming regions. The formalism detailed here incorporates the effects of "recursive nonlinearities": the process by which already-established metric perturbations will subsequently act to slow-down all future flows of inhomogeneity information. Despite such effects, we find viable cosmological models in which causal backreaction successfully serves as a replacement for
APA, Harvard, Vancouver, ISO, and other styles
7

Ouchi, Masami, Yoshiaki Ono та Takatoshi Shibuya. "Observations of the Lyman-α Universe". Annual Review of Astronomy and Astrophysics 58, № 1 (2020): 617–59. http://dx.doi.org/10.1146/annurev-astro-032620-021859.

Full text
Abstract:
Hydrogen Lyman-α (Lyα) emission has been one of the major observational probes for the high-redshift Universe since the first discoveries of high- z Lyα-emitting galaxies in the late 1990s. Due to the strong Lyα emission originated by resonant scattering and recombination of the most abundant element, Lyα observations witness not only Hii regions of star formation and active galactic nuclei (AGNs) but also diffuse Hi gas in the circumgalactic medium (CGM) and the intergalactic medium (IGM). Here, we review Lyα sources and present theoretical interpretations reached to date. We conclude the fol
APA, Harvard, Vancouver, ISO, and other styles
8

Hadzhiyska, Boryana, Sownak Bose, Daniel Eisenstein, and Lars Hernquist. "Extensions to models of the galaxy–halo connection." Monthly Notices of the Royal Astronomical Society 501, no. 2 (2020): 1603–20. http://dx.doi.org/10.1093/mnras/staa3776.

Full text
Abstract:
ABSTRACT We explore two widely used empirical models for the galaxy–halo connection, subhalo abundance matching (SHAM) and the halo occupation distribution (HOD), and compare them with the hydrodynamical simulation IllustrisTNG (TNG) for multiple statistics quantifying the galaxy distribution at $n_{\rm gal}\approx 1.3\times 10^{-3}\, ({\rm Mpc}\,h^{-1})^{-3}$. We observe that in their most straightforward implementations, both models fail to reproduce the two-point clustering measured in TNG. We find that SHAM models that use the relaxation velocity, Vrelax, and the peak velocity, Vpeak, perf
APA, Harvard, Vancouver, ISO, and other styles
9

Falcón-Barroso, J., G. van de Ven, M. Lyubenova, et al. "The CALIFA view on stellar angular momentum across the Hubble sequence." Astronomy & Astrophysics 632 (November 28, 2019): A59. http://dx.doi.org/10.1051/0004-6361/201936413.

Full text
Abstract:
We present the apparent stellar angular momentum over the optical extent of 300 galaxies across the Hubble sequence using integral-field spectroscopic (IFS) data from the CALIFA survey. Adopting the same λR parameter previously used to distinguish between slow and fast rotating early-type (elliptical and lenticular) galaxies, we show that spiral galaxies are almost all fast rotators, as expected. Given the extent of our data, we provide relations for λR measured in different apertures (e.g. fractions of the effective radius: 0.5 Re, Re, 2 Re), including conversions to long-slit 1D apertures. O
APA, Harvard, Vancouver, ISO, and other styles
10

Shelest, A., and F. Lelli. "From spirals to lenticulars: Evidence from the rotation curves and mass models of three early-type galaxies." Astronomy & Astrophysics 641 (September 2020): A31. http://dx.doi.org/10.1051/0004-6361/202038184.

Full text
Abstract:
Rotation curves have traditionally been difficult to trace for early-type galaxies (ETGs) because they often lack a high-density disk of cold gas as in late-type galaxies (LTGs). In this work, we derive rotation curves for three lenticular galaxies from the ATLAS3D survey, combining CO data in the inner parts with deep HI data in the outer regions, extending out to 10−20 effective radii. We also use Spitzer photometry at 3.6 μm to decompose the rotation curves into the contributions of baryons and dark matter (DM). We find that (1) the rotation-curve shapes of these ETGs are similar to those o
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Late Forming Dark Matter (LFDM)"

1

Sarkar, Abir. "Probing the Nature of Dark Matter in the Universe." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4223.

Full text
Abstract:
The dark matter is the most dominating matter candidate and a key driving force for the structure formation in the universe. Despite decade-long searches, the precise nature and particle properties of dark matter are still unknown. The standard cold dark matter candidate, the Weakly Interacting Massive Particle(WIMP) can successfully describe the large-scale features of the universe. However, when it comes to the scales comparable to a galaxy or a group of galaxies, it fails to explain the observations. The nature of the small-scale anomalies suggests a lower amount of dark matter at the
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Late Forming Dark Matter (LFDM)' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography