Results 121 to 130 of about 37,027 (256)

What Does the LMC Look Like? It Depends on [M/H] and Age

The Astrophysical Journal
We 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, Rene Andrae, Hans-Walter Rix, Joshua Povick, Vedant Chandra   +4 more
doaj   +1 more source

Erratum: Surface Photometry of Low Surface Brightness Dwarf Irregular Galaxies [PDF]

, 1998
Richard J. Patterson, T. X. Thuan
openalex   +1 more source

Discovery of Metal-poor and Distant Pre–Main Sequence Candidates in WLM with JWST

The Astrophysical Journal Letters
We present the discovery of 12 metal-poor and ​​​distant pre–main sequence (PMS) candidates in the dwarf irregular galaxy Wolf–Lundmark–Melotte ∼968 kpc away, at a present-day metallicity of [Fe/H] ∼ –0.9.
Venu M. Kalari, Ricardo Salinas, Morten Andersen, Guido De Marchi, Monica Rubio, Jorick S. Vink, Hans Zinnecker   +6 more
doaj   +1 more source

LBT/MODS spectroscopy of globular clusters in the irregular galaxy NGC 4449 [PDF]

, 2018
F. Annibali, Elena Morandi, Laura L. Watkins, M. Tosi, Alessandra Aloisi, A. Buzzoni, F. Cusano, M. Fumana, A. Marchetti, M. Mignoli, A. Mucciarelli, D. Romano, Roeland P. van der Marel   +12 more
openalex   +1 more source

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

Diffuse Ionized Gas inside the Dwarf Irregular Galaxy NGC 6822 [PDF]

, 2007
A. M. Hidalgo-Gámez, Antonio Peimbert
openalex   +1 more source

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

Spitzer 4.5 μm Luminosity-Metallicity and Mass-Metallicity Relations for Nearby Dwarf Irregular Galaxies [PDF]

, 2007
H. Lee, E. D. Skillman, J. M. Cannon, D.C. Jackson, R. D. Gehrz, E. Polomski, C. E. Woodward, H. Lee, E. D. Skillman, J. M. Cannon, D.C. Jackson, R. D. Gehrz, E. Polomski, C. E. Woodward   +13 more
openalex   +1 more source

Chemical evolution of irregular galaxies

, 1998
10 pages, 3 figs, uses moriond.sty. Review presented at XVIIIth Rencontre de Moriond `Dwarf Galaxies and Cosmology', eds.
openaire   +2 more sources

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