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Cosmology 2023 in Miramare

28 August 2023 to 2 September 2023
SISSA Building, Miramare, Trieste, Italy
Europe/Rome timezone

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Session

Virtual only posters (ignore time)

28 Aug 2023, 21:35
Main Auditorium (SISSA Building, Miramare, Trieste, Italy)

Main Auditorium

SISSA Building, Miramare, Trieste, Italy

Via Beirut 2, Trieste

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  1. 2. A larger value for the Hubble constant by an evolving gravitational constant within unconventional supersymmetric models
    Pedro Alvarez
    28/08/2023, 21:35
  2. 156. A new pairwise estimator for the y-type polarised kinetic Sunyaev Zeldovich effect from galaxy clusters
    Aritra Kumar Gon (Tata Institute of Fundamental Research)
    28/08/2023, 21:35

    We introduce a new pairwise estimator for observing the polarised kinetic Sunyaev Zeldovich (pkSZ) effect arising from the transverse peculiar velocity of galaxy clusters. The pkSZ effect is a second-order effect in the peculiar velocities of the clusters and has a frequency spectrum that can be decomposed into y-type and blackbody components, whereas the unpolarised linear kSZ effect has a...

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  3. 58. Bubbles associated with protoclusters at the time of reionisation.
    Polo Infante
    28/08/2023, 21:35

    Reionization of hydrogen in the intergalactic medium (IGM) is a landmark in structure formation. Redshift z ~ 7 is the frontier in Lyalpha and reionization studies and appears to be in the middle of reionization. In the “LAGER” project (Lyman-Alpha Galaxies in the Epoch of Reionization), we take deep narrowband images to identify Lyalpha emission at z ~ 7. In this poster we present several...

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  4. 120. Chaotic scalar fields as a model of dark energy in a generalized entropy setting
    Christian Beck (Queen Mary, University of London)
    28/08/2023, 21:35

    Motivated by the recent developments of cosmological models that are based on generalized entropies rather than Boltzmann-Gibbs entropy, we consider stochastically quantized self-interacting scalar fields as suitable models for dark energy. These fields shift information and effectively maximize Tsallis entropy with entropic index q=3. Second quantization effects lead to new and unexpected...

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  5. 67. CSFD: A More Accurate Galactic Dust Map with Minimal Extragalactic Contamination
    Yi-Kuan Chiang
    28/08/2023, 21:35

    The widely used Milky Way dust reddening map, the Schlegel, Finkbeiner, & Davis (1998, SFD) map, was found to contain extragalactic large-scale structure (LSS) imprints (Chiang & Ménard 2019). Such contamination is inherent in maps based on infrared emission, which pick up not only Galactic dust but also the cosmic infrared background (CIB). When SFD is used for extinction correction,...

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  6. 159. Dynamics of Disk and Elliptical Galaxies in Refracted Gravity
    Valentina Cesare (Istituto Nazionale di Astrofisica (INAF) - Osservatorio Astrofisico di Catania)
    28/08/2023, 21:35

    We test Refracted Gravity (RG) [1] by investigating the dynamics of disk galaxies in the Disk Mass Survey (DMS) [2,3,4] and of three elliptical E0 galaxies in the SLUGGS survey [3,4,5] without the aid of dark matter. RG reproduces the rotation curves, the vertical velocity dispersions, and the observed Radial Acceleration Relation (RAR) of DMS galaxies and the root-mean-square (RMS) velocity...

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  7. 6. Lensing of Gravitational Waves in modified gravity theory
    Vipin kumar Sharma (Department of Physics, University of Lucknow, India)
    28/08/2023, 21:35
  8. 5. Non-Gaussianity in rapid-turn multi-field inflation
    Oksana Iarygina (Nordita)
    28/08/2023, 21:35
  9. 3. Radio-frequency searches for WIMPs with MeerKAT
    Natasha Lavis (SARAO, University of the Witwatersrand)
    28/08/2023, 21:35
  10. 8. Scalar Field Dark Matter with a quartic self-interaction potential
    Johnatan Osvaldo Román Herrera
    28/08/2023, 21:35
  11. 91. The shape of dark matter halos of galaxies derived from HI observations
    Mousumi Das
    28/08/2023, 21:35

    We present a study to measure the the shape of dark matter halos of gas rich galaxies that have extended HI disks. We have assumed that the halo axes ratios in the disk plane are approximately so that q=c/a measures the halo prolateness or oblatelness. We have applied our model to a sample of 20 nearby galaxies that are gas rich and close to face-on. We have used the stacked HI velocity...

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  12. 4. Ultralight boson fields and structure formation in the universe
    Luis Ureña-López
    28/08/2023, 21:35
  13. 87. Discretized Finsler Structure and Born Reciprocity: An Approach to unify General Relativity and Quantum Mechanics
    Abdel Nasser Tawfik (ENHEP Egyptian Network of High Energy Physics (EG)), Prof. Abdel Nasser Tawfik (Future University in Egypt (FUE)), Abdel Tawfik (ECTP)

    Aiming at unifying General Relativity (GR) and Quantum Mechanics (QM), we apply Born reciprocity and the Relativistic Generalized Uncertainty Principle (RGUP). A novel estimation of the fundamental tensor in discretized curved spacetime is thereby suggested. To this end, Riemann geometry is extended to incorporate the distance-momentum duality symmetry and implement the minimum measurable...

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  14. 7. Probing signatures of astrophysical scatter with multi-tracer line-intensity mapping
    Chandra Shekhar Murmu