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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.
Pages
About Me
About me
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Posts
Future Blog Post
Published:
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Blog Post number 4
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
Blog Post number 3
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
Blog Post number 2
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
Blog Post number 1
Published:
This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
portfolio
AllStarFit
AllStarFit: R package for source detection, PSF and multi-component galaxy fitting
MultiProFit
MultiProFit: A Python package for fast galaxy model fitting using Gaussian mixtures
ProFit
ProFit: An R package for Bayesian galaxy model fitting
Rubin Observatory LSST Science Pipelines
The Rubin Observatory LSST Science Pipelines (from Data Management)
publications
Mergers in Galaxy Groups. I. Structure and Properties of Elliptical Remnants
Published in The Astrophysical Journal, 2013
This first paper from my PhD thesis presented novel N-body simulations of mergers of spiral galaxies in groups of three to twenty-five. Analysis of synthetic images and kinematic maps showed that the merger remnants formed in the centers of these groups have very similar properties to nearby elliptical galaxies, showing that multiple, gas-poor and sometimes minor mergers are an alternative formation mechanism to the previously favoured paradigm of a single gas-rich major merger.
Recommended citation: Taranu D.S., Dubinski J.J., Yee H.K.C., 2013, ApJ, 778, 61. https://ui.adsabs.harvard.edu/abs/2013ApJ...778...61T/abstract
Quenching star formation in cluster galaxies
Published in Monthly Notices of the Royal Astronomical Society, 2014
This undergraduate thesis paper presented simplified models for the evolution of star formation in galaxies in rich clusters. Comparioson of model predictions to observations showed that typical galaxies are quenched on longer exponential time-scales of 3-3.5 Gyr, whereas models with very rapid quenching (<1Gyr) are disfavoured as they produce excessively old and red galaxies.
Recommended citation: Taranu D.S., Hudson M.J., Balogh M.L., et al., 2014, MNRAS, 440, 1934. https://ui.adsabs.harvard.edu/abs/2014MNRAS.440.1934T/abstract
Mergers in Galaxy Groups. II. The Fundamental Plane of Elliptical Galaxies
Published in Monthly Notices of the Royal Astronomical Society, 2015
This second paper from my PhD thesis concluded that Paper I’s simulations follow a similar fundamental plane relation to observed ellipticals, but with a shallower slope, implying that some dissipation is likely necessary to form realistic ellipticals.
Recommended citation: Taranu D.S., Dubinski J.J., Yee H.K.C., 2015, MNRAS, 803, 78 https://ui.adsabs.harvard.edu/abs/2015ApJ...803...78T/abstract
ProFit: Bayesian profile fitting of galaxy images
Published in Monthly Notices of the Royal Astronomical Society, 2016
ProFit is an R package for Bayesian galaxy profile fitting. This paper describes the code and methodology with examples and results from the VST-KiDS survey.
Recommended citation: Robotham A.S.G., Taranu D.S., Tobar R., et al., 2017, MNRAS, 466, 1513. https://ui.adsabs.harvard.edu/abs/2017MNRAS.466.1513R/abstract
Self-consistent Bulge/Disk/Halo Galaxy Dynamical Modeling Using Integral Field Kinematics
Published in The Astrophysical Journal, 2017
MagRite is a new code and method for fitting self-consistent galaxy models to images and integral field kinematics. This paper describes the method and shows an example using SAMI Galaxy Survey data.
Recommended citation: Taranu D.S., Obreschkow D., Dubinski J.J., et al., 2017, ApJ, 850, 70. https://ui.adsabs.harvard.edu/abs/2017ApJ...850...70T/abstract
The SAMI Galaxy Survey: the role of disc fading and progenitor bias in kinematic transitions
Published in The Astrophysical Journal, 2021
This paper quantifies the role of passive disc fading in transforming spiral galaxies to lenticulars, using SAMI Galaxy Survey data, equilibrium galaxy models and simulations.
Recommended citation: Croom, S. M.; Taranu, D. S.; van de Sande, J.; et al., 2021, MNRAS, 505, 2247. https://ui.adsabs.harvard.edu/abs/2021MNRAS.505.2247C/abstract
Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program
Published in arXiv (PASJ submitted), 2021
The paper describing the pipeline software, data processing, outputs and access for the third data release of the HSC-SSP (PDR3).
Recommended citation: Aihara, H., AlSayyad, Y., Ando, M., et al., 2021, arXiv:2108.13045. https://arxiv.org/abs/2108.13045
talks
Galaxy modelling in the era of all-sky multiwavelength surveys
Published:
Part of Dark Matter 2018, this talk begins with a summary of results from the paper on my galaxy dynamical modelling code MagRite, and preliminary results from multi-wavelength modelling of Subaru-HSC images using ProFit. No recording is available; see the slides here or here.
Galaxy modelling in the era of all-sky multiwavelength surveys
Published:
Part of IAU Symposium 341: PanModel2018, this talk presents preliminary results from multi-wavelength modelling of galaxies using what is now MultiProFit and Subaru-HSC data, with a view to future data processing for the Rubin Observatory (then still LSST). No recording is available; see the slides here.
Project plans for galaxy photometry and model fitting
Published:
Part of the Rubin Observatory Algorithms Workshop, this talk is the second half of a project update on the current status of galaxy photometry algorithms (presented by Jim Bosch), as well as ongoing work and future plans (presented by myself). The slides and recording are both available (my half begins at 24:00).
teaching
Teaching Assistant
Undergraduate courses, University of Toronto, Department of Astronomy & Astrophysics, 2008
I was a teaching assistant for a variety of courses at the University of Toronto, including: