Results 111 to 120 of about 445,447 (209)
What Does the LMC Look Like? It Depends on [M/H] and Age
The Astrophysical JournalWe offer a new way to look at the LMC through stellar mono-abundance and mono-age mono-abundance maps. These maps are based on ≳500,000 member stars with estimates of [M/H] ( σ _[M/H] ~ 0.17) and age $({\sigma }_{{\rm{log}}\tau }\unicode{x0007E}0.15$ ),
Neige Frankel +4 more
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Detection of Metal Enrichment by SN 2011jm in NGC 4809
The Astrophysical Journal LettersCosmic metals are believed to originate from stellar and supernovae (SNe) nucleosynthesis, dispersed into the interstellar medium (ISM) through stellar winds and supernova explosions.
Yulong Gao +4 more
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Dark matter in dwarf irregular galaxies, DDO 210 and DDO 169
, 2005 It has been proposed that dwarf irregular galaxies can be separated into two classes based on their formation mechanism; that they are the result of the collapse of a primordial gas cloud or that they are the product of condensation of gas in the tidal ...
Iyer, Mansie G
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Secondary evolution of galaxies investigated by N-body simulations [PDF]
, 2008 In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
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, 2015 Eight dwarf irregular galaxies, in the two nearby groups of galaxies Sculptor and Centaurus A (at 2.5 Mpc and 3.5 Mpc), have been imaged in neutral hydrogen (H I) with the Australia Telescope and the Very Large Array.
Carignan, C +2 more
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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
Photometric properties of the Local Volume dwarf galaxies [PDF]
, 2008 We present surface photometry and metallicity measurements for 104 nearby dwarf galaxies imaged with the Advanced Camera for Surveys and Wide Field and Planetary Camera 2 aboard the Hubble Space Telescope.
Shaya E. +11 more
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The Astrophysical Journal Supplement SeriesUnderstanding how and when galaxies formed stars over the history of the Universe is fundamental to the study of galaxy evolution. The star formation histories (SFHs) of galaxies in the local Universe can be measured with high precision using deep ...
Christopher T. Garling +5 more
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Astronomy & AstrophysicsContext. The Magellanic Clouds (MCs) offer a unique laboratory for studying galaxy interaction and the evolution of dwarf galaxies. The star formation history (SFH), which traces when and how stars formed, provides powerful constraints for the dynamical ...
Ficara F. +10 more
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Planetary Nebulae as a Probe of the Local Group Galaxies Evolution [PDF]
, 2017 We present the latest results from our study of PNe and HII regions in two Local Group dwarf irregular galaxies IC 10 and NGC ...
Pustilnik, S. A. +4 more
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