Results 81 to 90 of about 52,385 (210)

Comments on Properties of Gas Rich Dwarfs Galaxies in the Range of Radio Frequencies (B-Band)

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
    In this project we analyze data of a large sample of gas rich dwarfs galaxies including; Low Surface Brightness Galaxies (LSBGs), Blue Compact Galaxies (BCGs), and dwarfs Irregulars (dIr).
Layali Y. Al-Mashhadani
doaj  

How Invisible Stellar Halos Bias Our Understanding of Ultrafaint Galaxies

The Astrophysical Journal
We explore how a realistic surface brightness (SB) detection limit of μ _V ≈ 32.5 mag arcsec ^−2 for stars at the edges of ultrafaint galaxies affects our ability to infer their underlying properties.
Coral Wheeler, Jorge Moreno, M. Katy Rodriguez Wimberly, Francisco J. Mercado, James S. Bullock, Michael Boylan-Kolchin, Pratik J. Gandhi, Sarah R. Loebman, Philip F. Hopkins   +8 more
doaj   +1 more source

DGSAT: Dwarf Galaxy Survey with Amateur Telescopes II. A catalogue of isolated nearby edge-on disk galaxies and the discovery of new low surface brightness systems

, 2017
The connection between the bulge mass or bulge luminosity in disk galaxies and the number, spatial and phase space distribution of associated dwarf galaxies is a discriminator between cosmological simulations related to galaxy formation in cold dark ...
Henkel, C., Javanmardi, B., Kroupa, P., Martinez-Delgado, D., Teuwen, R.   +4 more
core   +1 more source

Accelerated Knowledge Discovery: A Vision for NASA Science

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract This paper introduces the sixth paradigm of scientific discovery: accelerated knowledge discovery (AKD). This paradigm is defined by the full integration of artificial intelligence (AI) into the research workflow as a tool augmenting cognitive capabilities of human scientists.
Rahul Ramachandran, Kaylin Bugbee, Juan Bernabe‐Moreno   +2 more
wiley   +1 more source

Characterizing the Signals and Backgrounds in a Low Earth Orbiting Cherenkov Detector, and Background Mitigation Strategies

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Cherenkov detectors have been used in space for decades to measure Galactic Cosmic Rays (GCRs), Solar Energetic Particles (SEPs) and trapped particles. We present proof‐of‐concept GRAS/Geant4 simulations to both show that a cubic fused silica Cherenkov detector with SiPM in LEO has a good sensitivity to SEP and GCR protons as a function of cut‐
C. S. W. Davis, F. Lei, K. Ryden, C. Dyer, G. Santin, P. Jiggens, M. Heil   +6 more
wiley   +1 more source

Environmental Quenching of Low-surface-brightness Galaxies Near Hosts from Large Magellanic Cloud to Milky Way Mass Scales

The Astrophysical Journal
Low-surface-brightness galaxies (LSBGs) are excellent probes of quenching and other environmental processes near massive galaxies. We study an extensive sample of LSBGs near massive hosts in the local universe that are distributed across a diverse range ...
J. Bhattacharyya, A. H. G. Peter, P. Martini, B. Mutlu-Pakdil, A. Drlica-Wagner, A. B. Pace, L. E. Strigari, T.-Y. Cheng, D. Roberts, D. Tanoglidis, M. Aguena, O. Alves, F. Andrade-Oliveira, D. Bacon, D. Brooks, A. Carnero Rosell, J. Carretero, L. N. da Costa, M. E. S. Pereira, T. M. Davis, S. Desai, P. Doel, I. Ferrero, J. Frieman, J. García-Bellido, G. Giannini, D. Gruen, R. A. Gruendl, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, J. L. Marshall, J. Mena-Fernández, R. Miquel, A. Palmese, A. Pieres, A. A. Plazas Malagón, E. Sanchez, B. Santiago, M. Schubnell, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, M. Vincenzi, A. R. Walker, N. Weaverdyck, P. Wiseman, Dark Energy Survey Collaboration   +51 more
doaj   +1 more source

Searching for tidal tails - investigating galaxy harassment

, 2005
Galaxy harassment has been proposed as a physical process that morphologically transforms low surface density disc galaxies into dwarf elliptical galaxies in clusters.
Aboufadel, Babul, Bernstein, Binggeli, Butcher, Calcaneo-Roldan, Conselice, Dekel, Dressler, Efstathiou, Feldmeier, Ferguson, Gregg, Henriksen, J. I. Davies, Kambas, Klypin, Kogut, Mateo, Moore, Moore, Moore, Moore, Roberts, S. Roberts, S. Sabatini, Sabatini, Sabatini, Trentham, Trentham, Tully   +30 more
core   +1 more source

Passive Microwave Radiometry and Active Radar Sounding as Complementary Tools for Geophysical Investigations of Icy Ocean Worlds

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Juno Microwave Radiometer (MWR) observations of Europa and Ganymede offer critical insights into the icy shells of these moons ahead of NASA's Europa Clipper and ESA's JUpiter ICy moons Explorer (JUICE) missions. Both missions are equipped with active radar sounders designed to address key unknowns such as ice shell thickness, thermal state ...
Natalie S. Wolfenbarger, Anna L. Broome, Dustin M. Schroeder, Anton I. Ermakov, Scott J. Bolton, Donald D. Blankenship   +5 more
wiley   +1 more source

Low surface brightness galaxies [PDF]

A program to investigate the properties of low surface brightness (LSB) galaxies involving surface photometry in U, B, V, R, I, and H-alpha, HI imaging with the Westerbork Synthesis Radio Telescope (WSRT) and the very large array (VLA) and ...
Bothun, G. D., Deblok, W. J. G., Mcgaugh, S. S., Vanderhulst, J. M.   +3 more
core   +1 more source

High-Resolution Rotation Curves of Low Surface Brightness Galaxies

The Astrophysical Journal, 2000
Accepted for publication in ApJ ...
Swaters, RA, Madore, E, Trewhella, M
openaire   +4 more sources