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Published in 2019 at "Advances in Space Research"
DOI: 10.1016/j.asr.2018.10.012
Abstract: Abstract Binary or multiple stellar systems, constituting almost a third of the content of the Milky Way, represent a high priority astronomical target due to their repercussions on the stellar dynamical and evolutionary parameters. Moreover…
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Keywords:
concept mission;
mission;
population evolution;
stellar population ... See more keywords
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1
Published in 2018 at "Nature Astronomy"
DOI: 10.1038/s41550-018-0436-x
Abstract: Stellar population and stellar kinematic studies provide unique but complementary insights into how galaxies build-up their stellar mass and angular momentum1–3. A galaxy’s mean stellar age reveals when stars were formed, but provides little constraint…
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Keywords:
galaxy;
age;
stellar population;
resolved stellar ... See more keywords
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Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201832625
Abstract: Fossil groups (FGs) are galaxy aggregates with an extended and luminous X-ray halo, which are dominated by a very massive early-type galaxy and lack of L* objects. FGs are indeed characterized by a large magnitude…
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Keywords:
galaxy;
fossil;
central galaxies;
stellar population ... See more keywords
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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1166
Abstract: Binary stars have been shown to have a substantial impact on the integrated light of stellar populations, particularly at low metallicity and early ages - conditions prevalent in the distant Universe. But the fraction of…
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Keywords:
stellar population;
binary parameter;
evaluating impact;
uncertainty ... See more keywords
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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1364
Abstract: This is the third paper of a series where we study the stellar population gradients (SP; ages, metallicities, $\alpha$-element abundance ratios and stellar initial mass functions) of early type galaxies (ETGs) at $z\le 0.08$ from…
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Keywords:
velocity dispersion;
population;
population gradients;
stellar population ... See more keywords
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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa328
Abstract: This paper studies pseudo-bulges (P-bulges) and classical bulges (C-bulges) in Sloan Digital Sky Survey (SDSS) central galaxies using the new bulge indicator ΔΣ1, which measures relative central stellar-mass surface density within 1 kpc. We compare ΔΣ1…
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Keywords:
density;
central galaxies;
digital sky;
stellar population ... See more keywords
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Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa3850
Abstract: We investigate the interaction effects in the stellar and gas kinematics, stellar population and ionized gas properties in the interacting galaxy pairAM1209-292, composed byNGC4105 and NGC4106. The data consist of long-slit spectra in the range…
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Keywords:
system;
physical properties;
stellar population;
ngc4106 ... See more keywords
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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa386
Abstract: We present results on the study of the stellar population in Early-Type galaxies (ETGs) belonging to 151 Compact Groups (CGs). We also selected a field sample composed of 846 ETGs to investigate environmental effects on…
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Keywords:
field;
stellar population;
low mass;
population properties ... See more keywords
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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz2095
Abstract: We study the internal radial gradients of the stellar populations in a sample comprising 522 early-type galaxies (ETGs) from the SAMI (Sydney-AAO Multi-object Integral field spectrograph) Galaxy Survey. We stack the spectra of individual spaxels…
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Keywords:
radial gradients;
galaxy survey;
stellar population;
type galaxies ... See more keywords