Query : 2016A&A...594A..49G

2016A&A...594A..49G - Astronomy and Astrophysics, volume 594A, 49-49 (2016/10-1)

RemoveYoung: A tool for the removal of the young stellar component in galaxies within an adjustable age cutoff.


Abstract (from CDS):

The optical morphology of galaxies holds the cumulative record of their assembly history, and techniques for its quantitative characterization offer a promising avenue toward understanding galaxy formation and evolution. However, the morphology of star-forming galaxies is generally dictated by the youngest stellar component, which can readily overshine faint structural/morphological features in the older underlying stellar background (e.g., relics from recent minor mergers) that could hold important insights into the galaxy build-up process. Stripping off galaxy images from the emission from stellar populations younger than an adjustable age cutoff tcut can therefore provide a valuable tool in extragalactic research. RemoveYoung (Y), a publicly available tool that is presented here, exploits the combined power of integral field spectroscopy (IFS) and spectral population synthesis (SPS) toward this goal. Two-dimensional (2D) post-processing of SPS models to IFS data cubes with Y permits computation of the spectral energy, surface brightness, and stellar surface density distribution of stellar populations older than a user-defined tcut. This suggests a variety of applications of star-forming galaxies, such as interacting or merging galaxy pairs and lower mass starburst galaxies near and far; these include blue compact and tidal dwarf galaxies.

Abstract Copyright: © ESO, 2016

Journal keyword(s): galaxies: starburst - galaxies: dwarf - galaxies: star clusters: general - galaxies: photometry - galaxies: stellar content - galaxies: evolution

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
1 NGC 3391 GiG 10 48 56.393 +14 13 11.77   13.5       ~ 39 0
2 NGC 3991 EmG 11 57 30.465 +32 20 03.00   13.8       ~ 151 1
3 NGC 7625 AG? 23 20 30.132 +17 13 32.16 13.31 13.23 11.98 11.25   ~ 262 0

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