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Stellar Populations in Galaxies [PDF]
Annual Review of Astronomy and Astrophysics, 1972 There are significant differences among old stellar systems which may partly be a function of luminosity. One such difference is the presence of nuclei in many high luminosity spiral galaxies but their absence in low luminosity irregular systems. Other differences are seen in the spectroscopic and photometric properties.
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Stellar population trends in S0 galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 We present stellar population age and metallicity trends for a sample of 59 S0 galaxies based on optical SDSS and NIR J & H photometry. When combined with optical g and r passband imaging data from the SDSS archive and stellar population models, we obtain radial age and metallicity trends out to at least 5 effective radii for most of the galaxies ...
Rose, James +7 more
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Stellar Populations in Spiral Galaxies [PDF]
Proceedings of the International Astronomical Union, 2006 Abstract We report preliminary results of the characterization of bulge and inner disk stellar populations for 8 nearby spiral galaxies using Gemini/GMOS. The long-slit spectra extend out to 1–2 disk scale lengths with S/N/Å>50. Two different model fitting techniques, absorption-line indices and full spectral synthesis, are found to weigh age ...
J. Jesús González +2 more
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Galaxy modelling through stellar population synthesis
EPJ Web of Conferences, 2012 In recent years, models of the Galaxy based on the spirit of population synthesis have considerably helped to improve our knowledge on the Galaxy and its formation scenario.
Robin A.C.
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The stellar population of bulges [PDF]
, 2008 To appear in the proceedings of the conference The Metal-Rich Universe, held June 12-16 on La Palma, Spain ...
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Stellar Populations at Large Redshifts [PDF]
Astrophysics and Space Science, 1995 It is now possible to probe stellar populations at large lookback times. The Butcher-Oemler Effect in distant clusters is unambiguous evidence for unexpectedly recent evolution of disk galaxies in dense environments, probably through starbursts induced by interactions.
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The Carnegie-Irvine Galaxy Survey. X. Bulges in Stellar Mass–based Scaling Relations
The Astrophysical Journal Supplement Series, 2022 We measure optical colors for the bulges of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey and convert their previously available R -band structural parameters to stellar-mass parameters.
Hua Gao, Luis C. Ho, Zhao-Yu Li
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The Chemodynamical Nature of the Triangulum–Andromeda Overdensity
The Astrophysical Journal, 2023 We present a chemodynamical study of the Triangulum–Andromeda overdensity (TriAnd) employing a sample of 31 candidate stars observed with the GRACES high-resolution ( R = 40,000) spectrograph at the Gemini North (8.1 m) telescope.
Yuri Abuchaim +9 more
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The Resolved Stellar Populations in the LEGUS Galaxies1* [PDF]
The Astrophysical Journal Supplement Series, 2018 Abstract The Legacy ExtraGalactic UV Survey (LEGUS) is a multiwavelength Cycle 21 Treasury program on the Hubble Space Telescope. It studied 50 nearby star-forming galaxies in 5 bands from the near-UV to the I-band, combining new Wide Field Camera 3 observations with archival Advanced Camera for Surveys data.
Matteo Messa +59 more
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The Astrophysical Journal Letters, 2023 High-eccentricity migration is a likely formation mechanism for many observed hot Jupiters, particularly those with a large misalignment between the stellar spin axis and orbital angular momentum axis of the planet.
Michelle Vick, Yubo Su, Dong Lai
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