Orbital eccentricities as indicators of stellar populations
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202040017
Abstract: Aims. Based on a local sample from Gaia DR2 catalogue composed of 74 339 stars, we are able to derive more accurate kinematic statistics defining the local stellar populations and classify the stars in terms… read more here.
Keywords: stellar populations; velocity; thick disc; disc ... See more keywords
SDSS-IV MaNGA: Excavating the fossil record of stellar populations in spiral galaxies
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1303
Abstract: We perform a “fossil record” analysis for ≈800 low-redshift spiral galaxies, using STARLIGHT applied to integral field spectroscopic observations from the SDSS-IV MaNGA survey to obtain fully spatially-resolved high-resolution star formation histories (SFHs). From the… read more here.
Keywords: fossil record; sdss manga; stellar populations; spiral galaxies ... See more keywords
Binary fraction indicators in resolved stellar populations and supernova-type ratios
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2089
Abstract: The binary fraction of a stellar population can have pronounced effects on its properties, and in particular the number counts of different massive star types, and the relative subtype rates of the supernovae which end… read more here.
Keywords: stellar populations; mass; resolved stellar; binary fraction ... See more keywords
A study of outer disc stellar populations of face-on star-forming galaxies in SDSS-IV MaNGA: causes of H α deficiency
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab1987
Abstract: Integral field unit spectra of face-on star-forming galaxies from the MaNGA survey are stacked in radial bins so as to reach an S/N high enough to measure emission lines and Lick indices out to 2.5–3Re.… read more here.
Keywords: forming galaxies; stellar populations; face star; star ... See more keywords
Near-infrared spectroscopic indices for unresolved stellar populations – II. Index measurements
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab2412
Abstract: We measured the equivalent width of a large set of near-infrared (NIR, 0.8–2.4$\ \mu$m) line-strength indices in XShooter medium-resolution spectra of the central regions of 14 galaxies. We found that two aluminum indices, Al at… read more here.
Keywords: unresolved stellar; index; stellar populations; near infrared ... See more keywords
Phase-space structures and stellar populations in the star-forming region NGC 2264
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stw2855
Abstract: We acknowledge support from the Spanish Ministry for Economy and Competitiveness and financing from the European Regional Development funds through grant AYA2013-40611-P. This work makes use of EURO-VO software, tools or services. The EURO-VO has… read more here.
Keywords: populations star; stellar populations; space structures; star forming ... See more keywords
The very young resolved stellar populations around stripped-envelope supernovae
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty093
Abstract: The massive star origins for Type IIP supernovae (SNe) have been established through direct detection of their red supergiants progenitors in pre-explosion observations; however, there has been limited success in the detection of the progenitors… read more here.
Keywords: young resolved; stellar populations; stripped envelope; supernovae ... See more keywords
The 50–100 pc scale parent stellar populations of Type II supernovae and limitations of single star evolution models
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz2843
Abstract: There is observational evidence of a dearth in core-collapse supernova (ccSN) explosions from stars with zero-age main-sequence (ZAMS) mass M0 ≈ 17–30M⊙, referred to as the ‘red supergiant problem’. However, simulations now predict that above… read more here.
Keywords: scale parent; stellar populations; age; parent stellar ... See more keywords