Nuria P. F. Lorente
A5091863677- Astronomy and Astrophysical Research
- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Astronomical Observations and Instrumentation
- Adaptive optics and wavefront sensing
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
- Scientific Computing and Data Management
- Plant Water Relations and Carbon Dynamics
- Radio Astronomy Observations and Technology
- Research Data Management Practices
- History and Developments in Astronomy
- Distributed and Parallel Computing Systems
- Geophysics and Gravity Measurements
- Big Data and Business Intelligence
- Calibration and Measurement Techniques
- Satellite Communication Systems
- Modular Robots and Swarm Intelligence
- Remote Sensing in Agriculture
- Sensor Technology and Measurement Systems
- Computational Physics and Python Applications
- Diversity and Career in Medicine
- Space Satellite Systems and Control
- Astrophysical Phenomena and Observations
- Semiconductor Lasers and Optical Devices
Macquarie University
2018-2025
Australian Astronomical Observatory
2014-2024
Royal Observatory
2006-2008
UK Astronomy Technology Centre
2005-2008
The SAMI Galaxy Survey will observe 3400 galaxies with the Sydney-AAO Multi-object Integral-field spectrograph (SAMI) on Anglo-Australian Telescope (AAT) in a 3-year survey which began 2013. We present throughput of system, science basis and specifications for target selection, observation plan combined properties selected galaxies. includes four volume limited galaxy samples based cuts proxy stellar mass, along low-stellar mass dwarf all from And Mass Assembly (GAMA) survey. GAMA regions...
We investigate the relationship between stellar and gas specific angular momentum $j$, mass $M_{*}$ optical morphology for a sample of 488 galaxies extracted from SAMI Galaxy Survey. find that measured within one effective radius, monotonically increases with that, $M_{*}>$10$^{9.5}$ M$_{\odot}$, scatter in this relation strongly correlates (i.e., visual classification S\'ersic index). These findings confirm massive all types lie on plane relating mass, light distribution, suggest...
We present the Early Data Release of Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey. The SAMI Survey is an ongoing integral spectroscopic survey ~3400 low-redshift (z<0.12) galaxies, covering galaxies in and groups within And Mass Assembly (GAMA) regions, a sample clusters. In Release, we publicly release fully calibrated datacubes for representative selection 107 drawn from GAMA along with information about these catalogues. All can be downloaded individually or as...
We present a methodology for the regularization and combination of sparse sampled irregularly gridded observations from fibre-optic multiobject integral field spectroscopy. The approach minimizes interpolation retains image resolution on combining subpixel dithered data. discuss in context Sydney–AAO spectrograph (SAMI) Galaxy Survey underway at Anglo-Australian Telescope. SAMI instrument uses 13 fibre bundles to perform high-multiplex spectroscopy across 1° diameter view. is targeting ∼3000...
We present the ∼800 star formation rate maps for Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey based on H α emission maps, corrected dust attenuation via Balmer decrement, that are included in SAMI Public Data Release 1. mask out spaxels contaminated by non-stellar using [O iii]/H β, [N ii]/H α, [S and i]/H line ratios. Using these we examine global resolved star-forming main sequences of galaxies as a function morphology, environmental density, stellar mass....
We have entered a new era where integral-field spectroscopic surveys of galaxies are sufficiently large to adequately sample large-scale structure over cosmologically significant volume. This was the primary design goal SAMI Galaxy Survey. Here, in Data Release 3 (DR3), we release data for full 3068 unique observed. includes cluster 888 first time. For each galaxy, there two spectral cubes covering blue (370-570nm) and red (630-740nm) optical wavelength ranges at resolving power R=1808 4304...
We describe the selection of galaxies targeted in eight low-redshift clusters (APMCC0917, A168, A4038, EDCC442, A3880, A2399, A119 and A85; 0.029 < z 0.058) as part Sydney-AAO Multi-Object Integral field spectrograph Galaxy Survey (SAMI-GS). have conducted a redshift survey these using AAOmega multi-object on 3.9-m Anglo-Australian Telescope. The is used to determine cluster membership characterize dynamical properties clusters. In combination with existing data, resulted 21 257 reliable...
We present the second major release of data from SAMI Galaxy Survey. Data Release Two includes for 1559 galaxies, about 50% full survey. Galaxies included have a redshift range 0.004 < z 0.113 and large stellar mass 7.5 log (M_star/M_sun) 11.6. The core each galaxy consist two primary spectral cubes covering blue red optical wavelength ranges. For cube we also provide three spatially binned set standardised aperture spectra. product value-added products. This all emission line products One,...
We use data from the Sydney-AAO Multi-Object Integral Field Spectrograph Galaxy Survey and And Mass Assembly (GAMA) survey to investigate spatially resolved signatures of environmental quenching star formation in galaxies. Using dust-corrected measurements distribution Hα emission, we measure radial profiles a sample 201 star-forming galaxies covering three orders magnitude stellar mass (M*; 108.1–1010.95 M⊙) fifth nearest neighbour local environment density (Σ5; 10−1.3–102.1 Mpc−2). show...
We investigate a sample of 40 local, main-sequence, edge-on disc galaxies using integral field spectroscopy with the Sydney-AAO Multi-object Integral spectrograph (SAMI) Galaxy Survey to understand link between properties extraplanar gas and their host galaxies. The kinematics gas, including velocity asymmetries increased dispersion, are used differentiate hosting large-scale galactic winds from those dominated by extended diffuse ionized gas. find rather that spectrum gas-dominated wind...
We present gas-phase metallicity and ionization parameter maps of 25 star-forming face-on spiral galaxies from the SAMI Galaxy Survey Data Release 1. Self-consistent are calculated simultaneously through an iterative process to account for interdependence strong emission line diagnostics involving ([OII]+[OIII])/H$\beta$ (R23) [OIII]/[OII] (O32). The created on a spaxel-by-spaxel basis because HII regions not resolved at spatial resolution. combine data with stellar mass, star formation rate...
Abstract The Taipan galaxy survey (hereafter simply ‘Taipan’) is a multi-object spectroscopic starting in 2017 that will cover 2π steradians over the southern sky (δ ≲ 10°, | b ≳ 10°), and obtain optical spectra for about two million galaxies out to z < 0.4. use newly refurbished 1.2-m UK Schmidt Telescope at Siding Spring Observatory with new TAIPAN instrument, which includes an innovative ‘Starbugs’ positioning system capable of rapidly simultaneously deploying up 150 fibres (and 300...
We present the first major release of data from SAMI Galaxy Survey. This focuses on emission-line physics galaxies. Data Release One includes for 772 galaxies, about 20% full survey. Galaxies included have redshift range 0.004 < z 0.092, a large mass (7.6 log(Mstellar/M$_\odot$) 11.6), and star-formation rates 10^-4 to 10^1\ M$_\odot$/yr. For each galaxy, we include two spectral cubes set spatially resolved 2D maps: single- multi-component fits (with dust extinction corrections strong...
Abstract Dynamical models are crucial for uncovering the internal dynamics of galaxies; however, most results to date assume axisymmetry, which is not representative a significant fraction massive galaxies. Here, we build triaxial Schwarzschild orbit-superposition galaxies taken from SAMI Galaxy Survey, in order reconstruct their inner orbital structure and mass distribution. The sample consists 161 passive with total stellar masses range 10 9.5 –10 12 M ⊙ . We find that changes structures...
ABSTRACT We study the Fundamental Plane (FP) for a volume- and luminosity-limited sample of 560 early-type galaxies from SAMI survey. Using r-band sizes luminosities new multi-Gaussian expansion photometric measurements, treating luminosity as dependent variable, FP has coefficients = 1.294 ± 0.039, b 0.912 0.025, zero-point c 7.067 0.078. leverage high signal-to-noise ratio integral field spectroscopy, to determine how structural stellar population observables affect scatter about FP. The...
ABSTRACT Slow rotator galaxies are distinct amongst galaxy populations, with simulations suggesting that a mix of minor and major mergers responsible for their formation. A promising path to resolve outstanding questions on the type merger responsible, is by investigating deep imaging massive signs potential remnants. We utilize from Subaru-Hyper Suprime Cam Wide data search tidal features in [log10(M*/M⊙) &gt; 10] early-type (ETGs) SAMI Galaxy Survey. perform visual check images where...
We use the SAMI Galaxy Survey to examine drivers of galaxy spin, $\lambda_{R_e}$, in a multi-dimensional parameter space including stellar mass, population age (or specific star formation rate) and various environmental metrics (local density, halo satellite vs. central). Using partial correlation analysis we consistently find that or rate is primary correlating with spin. Light-weighted are more strongly correlated spin than mass-weighted age. In fact, across our sample, once relation...
We present the SAMI Pilot Survey, consisting of integral field spectroscopy 106 galaxies across three galaxy clusters, Abell 85, 168 and 2399. The were selected by absolute magnitude to have Mr < −20.25 mag. survey, using Sydney-AAO Multi-object Integral spectrograph (SAMI), comprises observations all morphological types with 75 per cent sample being early-type (ETGs) 25 late-type (LTGs). Stellar velocity dispersion maps are derived for in sample. λR parameter, a proxy specific stellar...
We construct Tully-Fisher relations (TFRs), from large samples of galaxies with spatially-resolved H$\alpha$ emission maps the K-band Multi-Object Spectrograph (KMOS) Redshift One Spectroscopic Survey (KROSS) at $z\approx1$. compare these to data Sydney-Australian-Astronomical-Observatory Multi-object Integral-Field (SAMI) Galaxy $z\approx0$. stringently match quality latter former, and apply identical analysis methods sub-sample selection criteria both conduct a direct comparison absolute...
ABSTRACT It has been proposed that S0 galaxies are either fading spirals or the result of galaxy mergers. The relative contribution each pathway and environments in which they occur remain unknown. Here, we investigate stellar gas kinematics 219 S0s SAMI Survey to look for signs multiple formation pathways occurring across full range environments. We identify a large rotational support their kinematics, correspond ranges physical structure. find pressure-supported with v/σ below 0.5 tend be...
ABSTRACT We infer the intrinsic ionized gas kinematics for 383 star-forming galaxies across a range of integrated star formation rates (SFR ∈ [10−3, 102] M⊙ yr−1) at z ≲ 0.1 using consistent 3D forward-modelling technique. The total sample is combination from Sydney-AAO Multiobject Integral field Spectrograph (SAMI) Galaxy survey and DYnamics Newly Assembled Massive Objects survey. For typical low-z taken SAMI Survey, we find vertical velocity dispersion (σv,z) to be positively correlated...
Galaxy internal structure growth has long been accused of inhibiting star formation in disc galaxies. We investigate the potential physical connection between dispersion-supported stellar structures (e.g. classical bulges) and position galaxies on star-forming main sequence at $z\sim0$. Combining might SAMI MaNGA galaxy surveys, we measure $\lambda_{Re}$ spin parameter for 3781 over $9.5 < \log M_{\star} [\rm{M}_{\odot}] 12$. At all masses, locus possess values indicative intrinsically...
We investigate the change in mean stellar population age and metallicity ([Z/H]) scaling relations for quiescent galaxies from intermediate redshift ($0.60\leq z\leq0.76$) using LEGA-C Survey, to low ($0.014\leq z\leq0.10$) SAMI Galaxy Survey. find that, similarly their low-redshift counterparts, of at $0.60\leq z\leq 0.76$ closely correlates with $M_*/R_\mathrm{e}$ (a proxy gravitational potential or escape velocity), that deeper wells are more metal-rich. This supports hypothesis relation...
Abstract We explore the impact of large-scale 3D density field, as defined by deep, wide-field galaxy surveys, on stellar spin ($\lambda _{\rm R_e}$) and distributions fast slow rotators. use GAMA spectroscopic redshift survey to reconstruct cosmic web obtain spatially-resolved kinematics from SAMI Galaxy Survey. Among various local environment metrics, distance closest filament (Dfil) correlates most significantly with $\lambda R_e}$, but it is secondary more dominant roles played age mass....