Results 71 to 80 of about 1,559 (182)
WLM: Dynamics of an isolated dwarf irregular galaxy under ram pressure in the Local Group
Astronomy & AstrophysicsThe Wolf–Lundmark–Melotte (WLM) galaxy is an archetypal dwarf irregular galaxy that has not experienced interactions with major Local Group galaxies within the past 8 Gyr.
Kolhe Neel +7 more
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Dormancy Patterns of Apple Trees Grown in a Mild Winter Region: A Breakpoint Model Analysis
Physiologia Plantarum, Volume 178, Issue 3, May/June 2026.ABSTRACT Climate change poses a significant challenge to the production of temperate climate fruit trees, since the dormancy of these species is regulated by the chill and heat accumulation during winter and early spring. This study aimed to identify the dormancy evolution patterns of three apple cultivars (“Galaxy,” “Fuji Suprema,” and “Eva”) in a ...
Rafael Henrique Pertille +5 more
wiley +1 more source
Ultradeep Imaging of Nearby Dwarf Irregular Galaxies: Young Objects in the Far Outer Disk
The Astronomical JournalUltradeep UBVI imaging of 10 nearby (≤7.8 Mpc) noninteracting dwarf irregular galaxies are used to examine their far outer stellar disks. The annulus between 26 mag arcsec ^−2 and 29 mag arcsec ^−2 in the V band is what we define as the far outer disk ...
Deidre A. Hunter +6 more
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UniverseWe report the identification of an extremely rare and peculiar set of irregular radio sources, termed “STROMERSs” (STRange and Odd Morphology Extragalactic Radio Sources).ingThe irregular radio sources with very anomalous morphologies that make them ...
Soumen Kumar Bera +4 more
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Fragmentation of Expanding Shells in Spiral and Irregular Galaxies
Astronomy & Astrophysics, 1997 Conditions for the fragmentation of expanding shells due to gravitational instability are discussed. The self-similar analytical solution is compared with the results of 3-dimensional computer simulations for the expansion into homogeneous media. For realistic galactic disks we show that the formation of fragments is influenced by the amount of energy ...
Ehlerova, Sona +3 more
openaire +3 more sources
ON THE STAR FORMATION LAW FOR SPIRAL AND IRREGULAR GALAXIES [PDF]
The Astrophysical Journal, 2015 A dynamical model for star formation on a galactic scale is proposed in which the interstellar medium is constantly condensing to star-forming clouds on the dynamical time of the average midplane density, and the clouds are constantly being disrupted on the dynamical time scale appropriate for their higher density.
openaire +2 more sources
A γ-Ray-emitting Collisional Ring Galaxy System in Our Galactic Neighborhood
The Astrophysical Journal LettersThe astrophysical γ -ray photons carry the signatures of the violent phenomena happening on various astronomical scales in our Universe. This includes supernova remnants, pulsars, and pulsar wind nebulae in the Galactic environment and extragalactic ...
Vaidehi S. Paliya, D. J. Saikia
doaj +1 more source
IUE spectra of clumpy irregular galaxies⋆ [PDF]
Monthly Notices of the Royal Astronomical Society, 1982 BENVENUTI, PIERO, C. Casini, J. Heidmann
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Interstellar gas motions around massive star formation regions in the nearby dwarf galaxy DDO43
Acta PolytechnicaAreas of massive star formation are strongly influenced by stellar winds and supernovae, therefore, enhanced turbulent flows are expected. We analyse high-quality Karl G. Jansky Very Large Array observations of the neutral hydrogen gas content of DDO43,
Enikő Pichler +4 more
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Galaxy Morphological Classification with Zernike Moments and Machine Learning Approaches
The Astrophysical Journal Supplement SeriesClassifying galaxies is an essential step for studying their structures and dynamics. Using GalaxyZoo2 (GZ2) fractions thresholds, we collect 545 and 11,735 samples in nongalaxy and galaxy classes, respectively.
Hamed Ghaderi +2 more
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