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  1. Dark matter effect on the weak deflection angle by black holes at the center of Milky Way and M87 galaxies

    In this paper, we investigated the effect of dark matter on the weak deflection angle by black holes at the galactic center. We consider three known...

    Reggie C. Pantig, Ali Övgün in The European Physical Journal C
    Article Open access 02 May 2022

  2. Simulations of galaxies in an expanding Universe with modified Newtonian dynamics (MOND) and with modified gravitational attractions (MOGA)

    The stability of galaxies is either explained by the existence of dark matter or caused by a modification of Newtonian acceleration (MOND). Here, we...

    Søren Toxvaerd in The European Physical Journal Plus
    Article Open access 09 May 2024

  3. Dark Matter in the Center of LSB and Dwarf Galaxies from H $\alpha$ Observations

    This work is focused on the preliminary results of the observations of H...
    E. D’Onghia, D. Marchesini, ... A. Zacchei in The Mass of Galaxies at Low and High Redshift
    Conference paper

  4. The Tully-Fisher Relation for Compact Group Galaxies

    Compact groups of galaxies are systems with high densities and low velocity dispersions, where galaxy interactions should play a major role in the...
    Cláudia Mendes-de-Oliveira, Philippe Amram, ... Chantal Balkowski in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  5. The Effect of Gaseous Dissipation on the Fate of Supermassive Black Holes in Merging Galaxies

    We analyze the effect of dissipation on the orbital evolution of supermassive black holes (SMBHs) using high-resolution gasdynamical simulations of...
    S. Kazantzidis, L. Mayer, ... B. Moore in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  6. Cosmological Distance Scale. Part 14: “Hubble Bubble” and the Gravitational Dipole

    Drawing on astronomical discoveries made in the past 25 years, the paper discusses possible causes of the phenomenon perceived as the “accelerated...

    S. F. Levin in Measurement Techniques
    Article 01 May 2023

  7. From the Earliest Seeds to Today’s Supermassive Black Holes

    I review scenarios for the assembly of supermassive black holes (MBHs) at the center of galaxies that trace their hierarchical build-up far up in the...
    P. Madau in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  10. Enhanced \(m = 1\) WKB instabilities in nearly Keplerian stellar discs due to the presence of gas

    Dynamical evolution of galaxies is a complex process, especially the centers. Gravitationally coupled gas and stellar discs have been observed to...

    Meenu Prajapati, Mamta Gulati in Astrophysics and Space Science
    Article 01 June 2022

  11. Galaxy Cluster A 2142: Halo Boundary, “Red Sequence”, Properties of Galaxies Based on SDSS

    Abstract —Here we present results of studying the dynamics of galaxies, properties of early-type galaxies, properties of galaxies with the quenched...

    F. G. Kopylova, A. I. Kopylov in Astrophysical Bulletin
    Article 01 March 2022

  12. Presence of Dual Structure in Galaxy Clusters from CfA2 Redshift Survey which Reveals High-Energy \({\gamma}\)-Associations on Fermi/LAT 12-Year Point Source Catalog 4FGL DR3

    Abstract

    The presence of dual structure in 13 clusters of galaxies from CfA2 Redshift Survey is discussed. The spatial distributions of galaxies and...

    I. V. Arkhangelskaja, L. N. Khanh, ... D. N. Dorosheva in Physics of Atomic Nuclei
    Article 01 December 2023

  13. Galaxies and Clusters of Galaxies in Observations and Numerical Models

    Abstract

    An analysis of the properties of 1157 galaxies, groups and clusters of galaxies confirms the dependence of the virial velocity on the halo...

    M. Demyansky, A. Doroshkevich, ... S. Pilipenko in Astronomy Reports
    Article 01 September 2022

  14. Formation of the First Supermassive Black Holes

    Understanding the emergence of the first supermassive black holes, and hence the first quasars, is a crucial ingredient for models of reionization...
    V. Bromm in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  15. The Scalar Field Dark Matter Model: A Braneworld Connection

    This work is a review for the progress of the scalar field dark matter (SFDM) hypothesis. Here we outline a possible brane world model justifying the...
    Tonatiuh Matos, Luis Arturo Ureña-López, ... Darío Núñez in The Early Universe and Observational Cosmology
    Chapter

  16. Chemo-Photometric Models of Ring Galaxies

    The peculiar ring galaxies are formed as a result of cosmic interaction. An intruder galaxy plunges through the center of a disk galaxy triggering...
    Anna Curir, Paola Mazzei in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  17. Radiative Feedback from Quasars and the Growth of Supermassive Black Holes

    We discuss the role of feedback via photoionization and Compton heating in the co-evolution of massive black holes at the center of spheroidal...
    S.Yu. Sazonov, J. P. Ostriker, ... R. A. Sunyaev in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  18. Molecular and Atomic Gas in Star-forming Complexes: NGC 5194, NGC 5457, NGC 628, and NGC 6946

    Abstract —

    We use observations of CO and HI emission in star-forming complexes (SFCs) in galaxies NGC 5457, NGC 5194, NGC 628, and NGC 6946 to search...

    K. Smirnova, D. Wiebe in Astronomy Reports
    Article 01 April 2022

  19. The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way

    Galactic outflows are ubiquitous in galaxies containing active star formation or supermassive black hole activity. The presence of a large-scale...

    Kartick C. Sarkar in The Astronomy and Astrophysics Review
    Article 30 March 2024

  20. Evidence for Massive Black Holes in the Nuclei of Active Galaxies from Gamma-Ray Observations

    According to our present knowledge, Active Galactic Nuclei (AGNs) consist of massive black holes which accrete matter from their environments. By...
    Werner Collmar, Volker Schönfelder in Black Holes: Theory and Observation
    Conference paper
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