Results 161 to 170 of about 599,828 (297)

Measuring Resolved Star Formation Histories from High-precision Color–Magnitude Diagrams with StarFormationHistories.jl

The Astrophysical Journal Supplement Series
Understanding 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, Nitya Kallivayalil, Kristen B. W. McQuinn, Jack T. Warfield, Mario Gennaro, Roger E. Cohen   +5 more
doaj   +1 more source

The inclination of the dwarf irregular galaxy Holmberg II

, 2014
We provide constraints on the inclination angle of the H\,{\sc i} disk of the dwarf irregular galaxy Holmberg II (Ho II) from stability analysis of the outer gaseous disk. We point out that a mean inclination angle of 27 degrees and thus a flat circular velocity of ~60 km/s, is required to have a level of gravitational stability similar to that found ...
F. J. Sánchez-Salcedo, A. M. Hidalgo-Gámez, Eric E. Martínez-García   +2 more
openaire   +3 more sources

The JWST Resolved Stellar Populations Early Release Science Program. VIII. The Spatially Resolved Star Formation History of WLM

The Astrophysical Journal
Radial stellar population gradients within dwarf galaxies provide a promising avenue for disentangling the drivers of galaxy evolution, including environment. Within the Local Volume, radial stellar age gradient slopes correlate with interaction history,
Roger E. Cohen, Kristen B. W. McQuinn, Alessandro Savino, Max J. B. Newman, Daniel R. Weisz, Andrew E. Dolphin, Martha L. Boyer, Matteo Correnti, Marla C. Geha, Mario Gennaro, Karoline M. Gilbert, Nitya Kallivayalil, Jack T. Warfield, Benjamin F. Williams, Alyson M. Brooks, Andrew A. Cole, Evan D. Skillman, Christopher T. Garling, Jason S. Kalirai, Jay Anderson   +19 more
doaj   +1 more source

Star formation histories in dwarf irregular galaxies in the Local Group [PDF]

, 1991
L. Greggio, G. Marconi, P. Focardi, M. Tosi   +3 more
openalex   +1 more source

Mock Observations: Morphological Analysis of Galaxies in TNG100 Simulations

The Astrophysical Journal Supplement Series
In this study, we investigate the morphology of galaxies in the TNG100 simulation by applying mock observation techniques and compare the results with the observational data from the Sloan Digital Sky Survey (SDSS).
Jun-Yu Gong, Weipeng Lin, Lin Tang, Yanyao Lan   +3 more
doaj   +1 more source

Emergence of the Galaxy Morphology–Star Formation Activity–Clustercentric Radius Relations in Galaxy Clusters

The Astrophysical Journal
We investigate when and how the relations of galaxy morphology and star-forming activity with clustercentric radius become evident in galaxy clusters. We identify 162 galaxy clusters with total mass ${{M}}_{\mathrm{tot}}^{\mathrm{cl}}\gt 5\times {10}^{13}
Sungwook E. Hong, Changbom Park, Preetish K. Mishra, Juhan Kim, Brad K. Gibson, Yonghwi Kim, C. Gareth Few, Christophe Pichon, Jihye Shin, Jaehyun Lee   +9 more
doaj   +1 more source

Observations of CO in the Magellanic irregular galaxy NGC 55 [PDF]

The content of molecular gas in galaxies, mainly H2, is one of the key observations necessary for the understanding of star formation processes and history.
Dettmar, Ralf-Juergen, Heithausen, Andreas   +1 more
core   +1 more source

Addendum: The Dwarf Irregular Galaxy Sextans A. II. Recent Star Formation History [Astron. J. [BF]114[/BF], 2527 (1997)] [PDF]

, 1998
R. C. Dohm‐Palmer, Evan D. Skillman, Abhijit Saha, Eline Tolstoy, Mario Mateo, J. S. Gallagher, J. G. Hoessel, C. Chiosi, R. J. Dufour   +8 more
openalex   +1 more source

COSMIC-L: A Photometric Catalog of Observed Stars in the Large Magellanic Cloud

The Astrophysical Journal Supplement Series
The Magellanic Clouds are two nearby dwarf irregular galaxies, the study of which can help us in understanding galaxy and stellar evolution. In particular, the Large Magellanic Cloud, the larger one, contains approximately 30 billion stars at various ...
Antonio Franco, Achille A. Nucita, Francesco De Paolis, Francesco Strafella   +3 more
doaj   +1 more source

Survey of late-type and irregular southern galaxies on plates taken with the UK 1.2-m Schmidt telescope

, 1978
Jr. Corwin H. G., A. de Vaucouleurs, G. de Vaucouleurs   +2 more
openalex   +1 more source