activity
20172024
most citedFirefly (Fitting IteRativEly For Likelihood analYsis): a full spectral fitting code

192 citations · 308 across the 9 of their papers we have counts for

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Showing astro-ph.GAShow all

15 papers · 1 filter

astro-ph.GA2024

The VIRUS-dE Survey I: Stars in dwarf elliptical galaxies - 3D dynamics and radially resolved stellar initial mass functions

Mathias Lipka, Jens Thomas, Roberto Saglia +9

We analyse the stellar structure of a sample of dwarf ellipticals (dE) inhabiting various environments within the Virgo cluster. Integral-field observations with a high spectral re…

astro-ph.GA2024★ 2 cited

Stellar populations of massive early-type galaxies observed by MUSE

Taniya Parikh, Roberto Saglia, Jens Thomas +3

Stellar population studies of massive early-type galaxies (ETGs) suggest that the stellar initial mass function may not be universal. In particular, the centres of ETGs seem to con…

astro-ph.GA2023★ 1 cited

Dynamical stellar mass-to-light ratio gradients: Evidence for very centrally concentrated IMF variations in ETGs?

Kianusch Mehrgan, Jens Thomas, Roberto Saglia +4

Evidence from different probes of the stellar initial mass function (IMF) of massive early-type galaxies (ETGs) has repeatedly converged on IMFs more bottom-heavy than in the Milky…

astro-ph.GA2023

Composite Bulges -- III. A Study of Nuclear Star Clusters in Nearby Spiral Galaxies

Aishwarya Ashok, Anil Seth, Peter Erwin +17

We present photometric and morphological analyses of nuclear star clusters (NSCs) -- very dense, massive star clusters present in the central regions of most galaxies -- in a sampl…

astro-ph.GA2023★ 13 cited

Detailed shapes of the line-of-sight velocity distributions in massive early-type galaxies from non-parametric spectral models

Kianusch Mehrgan, Jens Thomas, Roberto Saglia +2

We present the first systematic study of the detailed shapes of the line-of-sight velocity distributions (LOSVDs) in nine massive early-type galaxies (ETGs) using the novel non-par…

astro-ph.GA2021★ 58 cited

SDSS-IV MaNGA: Radial Gradients in Stellar Population Properties of Early-Type and Late-Type Galaxies

Taniya Parikh, Daniel Thomas, Claudia Maraston +5

We derive ages, metallicities, and individual element abundances of early- and late-type galaxies (ETGs and LTGs) out to 1.5 R. We study a large sample of 1900 galaxies spannin…