Articles with "stellar population" as a keyword



A concept mission for the Stellar Population and Evolution with Cubesats (SPEC)

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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… read more here.

Keywords: concept mission; mission; population evolution; stellar population ... See more keywords

A relation between the characteristic stellar ages of galaxies and their intrinsic shapes

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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… read more here.

Keywords: galaxy; age; stellar population; resolved stellar ... See more keywords
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Fossil group origins - IX. Probing the formation of fossil galaxy groups with stellar population gradients of their central galaxies

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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… read more here.

Keywords: galaxy; fossil; central galaxies; stellar population ... See more keywords

Evaluating the impact of binary parameter uncertainty on stellar population properties

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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… read more here.

Keywords: stellar population; binary parameter; evaluating impact; uncertainty ... See more keywords

Galaxy properties as revealed by MaNGA – III. Kinematic profiles and stellar population gradients in S0s

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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… read more here.

Keywords: velocity dispersion; population; population gradients; stellar population ... See more keywords

Structural and stellar-population properties versus bulge types in Sloan Digital Sky Survey central galaxies

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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… read more here.

Keywords: density; central galaxies; digital sky; stellar population ... See more keywords

The physical properties and evolution of the interacting system AM 1204−292

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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… read more here.

Keywords: system; physical properties; stellar population; ngc4106 ... See more keywords

Stellar population properties of ETGs in compact groups of galaxies

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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… read more here.

Keywords: field; stellar population; low mass; population properties ... See more keywords

Rising from the ashes: Evidence of old stellar populations and rejuvenation events in the very early Universe

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Published in 2024 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf001

Abstract: While JWST has observed galaxies assembling as early as z ∼ 14, evidence of galaxies with significant old stellar populations in the Epoch of Reionisation (EoR) – the descendants of these earliest galaxies – are… read more here.

Keywords: stellar populations; old stellar; emission; evidence ... See more keywords

Cloudy-Maraston : Integrating nebular continuum and line emission with the Maraston stellar population synthesis models

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Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf1866

Abstract: The James Webb Space Telescope has ushered in an era of abundant high-redshift observations of young stellar populations characterized by strong emission lines, motivating us to integrate nebular emission into the new Maraston stellar population… read more here.

Keywords: maraston stellar; maraston; emission; line ... See more keywords

Planetary nebulae as tracers of stellar population properties: a pilot study with MUSE

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Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf2036

Abstract: Planetary nebulae (PNe) are the only single stars in galaxies outside the Local Group that can be used as kinematic tracers of the diffuse light in the extended halo. Analysing their luminosity-specific number density across… read more here.

Keywords: planetary nebulae; muse; pne; stellar population ... See more keywords