1.5k citations · 2.7k across the 16 of their papers we have counts for
16 papers
Progenitor, environment, and modelling of the interacting transient, AT 2016jbu (Gaia16cfr)
S. J. Brennan, M. Fraser, J. Johansson +67
We present the bolometric lightcurve, identification and analysis of the progenitor candidate, and preliminary modelling of AT2016jbu (Gaia16cfr). We find a progenitor consistent w…
Diffuse Gas in Retired Galaxies: Nebular Emission Templates and Constraints on the Sources of Ionization
Jonas Johansson, Tyrone E. Woods, Marat Gilfanov +3
We present emission line templates for passively evolving ("retired") galaxies, useful for investigation of the evolution of the ISM in these galaxies, and characterization of thei…
Redshift evolution of the dynamical properties of massive galaxies from SDSS-III/BOSS
Alessandra Beifiori, Daniel Thomas, Claudia Maraston +26
We study the redshift evolution of the dynamical properties of ~180,000 massive galaxies from SDSS-III/BOSS combined with a local early-type galaxy sample from SDSS-II in the redsh…
Diffuse Gas in Galaxies Sheds New Light on the Origin of Type Ia Supernovae
Jonas Johansson, Tyrone E. Woods, Marat Gilfanov +3
We measure the strength of HeII4686 nebular emission in passively evolving ("retired") galaxies, aiming to constrain their populations of hot accreting white dwarfs (WDs) in the…
Modelling Element Abundances in Semi-analytic Models of Galaxy Formation
Robert M. Yates, Bruno Henriques, Peter A. Thomas +3
We update the treatment of chemical evolution in the Munich semi-analytic model, L-GALAXIES. Our new implementation includes delayed enrichment from stellar winds, supernovae type…
Galaxy And Mass Assembly (GAMA): Spectroscopic analysis
A. M. Hopkins, S. P. Driver, S. Brough +79
The Galaxy And Mass Assembly (GAMA) survey is a multiwavelength photometric and spectroscopic survey, using the AAOmega spectrograph on the Anglo-Australian Telescope to obtain spe…
Spatially resolved star formation histories of nearby galaxies: evidence for episodic star formation in discs
Mei-Ling Huang, Guinevere Kauffmann, Yan-Mei Chen +4
We use long-slit spectroscopy from Moran et al. to study the radial dependence of the recent star formation histories of nearby galaxies with stellar masses greater than 10^10M_sun…
SNe Ia host galaxy properties from Sloan Digital Sky Survey-II spectroscopy
Jonas Johansson, Daniel Thomas, Janine Pforr +7
We study the stellar populations of SNe Ia host galaxies using SDSS-II spectroscopy. We focus on the relationships of SNe Ia properties with stellar velocity dispersion and the ste…
The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey
III Collaboration, Christopher P. Ahn, Rachael Alexandroff +224
The Sloan Digital Sky Survey III (SDSS-III) presents the first spectroscopic data from the Baryon Oscillation Spectroscopic Survey (BOSS). This ninth data release (DR9) of the SDSS…
Stellar velocity dispersions and emission line properties of SDSS-III/BOSS galaxies
D. Thomas, O. Steele, C. Maraston +24
We perform a spectroscopic analysis of 492,450 galaxy spectra from the first two years of observations of the Sloan Digital Sky Survey-III/Baryonic Oscillation Spectroscopic Survey…
Chemical element ratios of SDSS early-type galaxies
Jonas Johansson, Daniel Thomas, Claudia Maraston
We discuss chemical enrichments of ~4000 SDSS early-type galaxies using as tracers the element abundance ratios [C/Fe], [N/Fe], [O/Fe], [Mg/Fe], [Ca/Fe] and [Ti/Fe]. We utilise the…
On the spectral resolution of the MILES stellar library
A. Beifiori, C. Maraston, D. Thomas +1
Empirical stellar libraries are extensively used to extract stellar kinematics in galaxies and to build stellar population models. An accurate knowledge of the spectral resolution…
Chemical abundance ratios of galactic globular clusters from modelling integrated light spectroscopy
Daniel Thomas, Jonas Johansson, Claudia Maraston
We use our new, flux-calibrated stellar population model of absorption-line indices to derive ages, metallicities, and various element abundance ratios from integrated light spectr…
Flux-calibrated stellar population models of Lick absorption-line indices with variable element abundance ratios
Daniel Thomas, Claudia Maraston, Jonas Johansson
We present new stellar population models of Lick absorption-line indices with variable element abundance ratios. The models are based on our new calibrations of absorption-line ind…
The probability density function tail of the Kardar-Parisi-Zhang equation in the strongly non-linear regime
Johan Anderson, Jonas Johansson
An analytical derivation of the probability density function (PDF) tail describing the strongly correlated interface growth governed by the nonlinear Kardar-Parisi-Zhang equation i…
Empirical calibrations of optical absorption line indices based on the stellar library MILES
Jonas Johansson, Daniel Thomas, Claudia Maraston
Stellar population models of absorption line indices are an important tool for the analysis of stellar population spectra. They are most accurately modelled through empirical calib…