A5019801514- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Adaptive optics and wavefront sensing
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Remote Sensing in Agriculture
- Advanced Vision and Imaging
- Astrophysical Phenomena and Observations
- Scientific Research and Discoveries
- Astrophysics and Star Formation Studies
- CCD and CMOS Imaging Sensors
- Advanced Image Processing Techniques
- Wireless Communication Networks Research
- Geophysics and Sensor Technology
- Geophysics and Gravity Measurements
- Mechanics and Biomechanics Studies
- Impact of Light on Environment and Health
- Particle Detector Development and Performance
- Data Visualization and Analytics
- Astrophysics and Cosmic Phenomena
- Plant Water Relations and Carbon Dynamics
- Space Technology and Applications
- Scientific Measurement and Uncertainty Evaluation
Universidade Federal de Santa Catarina
2013-2022
Instituto de Astrofísica de Andalucía
2013-2014
This paper characterizes the radial structure of stellar population properties galaxies in nearby universe, based on 300 from CALIFA survey. The sample covers a wide range Hubble types, and galaxy mass. We apply spectral synthesis techniques to recover mass surface density, extinction, light mass-weighted ages, metallicity, for each spatial resolution element our target galaxies. To study mean trends with overall properties, individual profiles are stacked seven bins morphology. confirm that...
We present the first public data release of CALIFA survey. It consists science-grade optical datacubes for 100 eventually 600 nearby (0.005<z<0.03) galaxies, obtained with integral-field spectrograph PMAS/PPak mounted on 3.5m telescope at Calar Alto observatory. The galaxies in DR1 already cover a wide range properties color-magnitude space, morphological type, stellar mass, and gas ionization conditions. This offers potential to tackle variety open questions galaxy evolution using spatially...
The growth of galaxies is one the key problems in understanding structure and evolution universe its constituents. Galaxies can grow their stellar mass by accretion halo or intergalactic gas clouds, merging with smaller similar galaxies. available translates into a rate star formation, which controls generation metals universe. spatially resolved history assembly has not been obtained so far for any given galaxy beyond Local Group. Here we demonstrate how massive inside-out. We report...
This paper describes the Second Public Data Release (DR2) of Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including 100 galaxies First (DR1). were obtained with integral-field spectrograph PMAS/PPak mounted on 3.5 m telescope at observatory. Two different spectral setups available each galaxy, (i) a low-resolution V500 setup covering wavelength range 3745-7500 \AA\ resolution 6.0 (FWHM), and (ii) medium-resolution V1200 3650-4840 2.3...
We have studied the radial structure of stellar mass surface density (μ∗) and population age as a function total morphology for sample 107 galaxies from CALIFA survey. applied fossil record method based on spectral synthesis techniques to recover star formation history (SFH), resolved in space time, spheroidal disk dominated with masses 109 1012 M⊙. derived half-mass radius, we found that are average 15% more compact than light. The ratio radius half-light (HLR) shows dual dependence galaxy...
Fossil record methods based on spectral synthesis techniques have matured over the past decade, and their application to integrated galaxy spectra fostered substantial advances understanding of galaxies evolution. Yet, because lack spatial resolution, these studies are limited a global view, providing no information about internal physics galaxies. Motivated by CALIFA survey, which is gathering Integral Field Spectroscopy full optical extent 600 galaxies, we developed an end-to-end pipeline...
The spatially resolved stellar population content of today's galaxies holds important information for understanding the different processes that contribute to star formation and mass assembly histories galaxies. aim this paper is characterize radial structure rate (SFR) in nearby Universe as represented by a uniquely rich diverse data set drawn from CALIFA survey. sample under study contains 416 observed with integral field spectroscopy, covering wide range Hubble types masses ranging M⋆ ~...
We use spatially and temporally resolved maps of stellar population properties 300 galaxies from the CALIFA integral field survey to investigate how metallicity (Z⋆) relates total mass (M⋆) local surface density (μ⋆) in both spheroidal- disk-dominated galaxies. The are shown follow a clear mass–metallicity relation (MZR) over whole 109–1012 M☉ range. This is steeper than one derived nebular abundances, which similar flatter MZR when we consider only young stars. also find strong between...
While studies of gas-phase metallicity gradients in disc galaxies are common, very little has been done towards the acquisition stellar abundance same regions. We present here a comparative study and age distributions sample 62 nearly face-on, spiral with without bars, using data from CALIFA survey. measure slopes their relation other properties galaxies. find that mean shallow negative. Furthermore, when normalized to effective radius disc, slope population does not correlate mass or...
We use spatially resolved spectroscopy from the Calar Alto Legacy Integral Field Area (CALIFA) survey to study nature of line emitting gas in galaxies different Hubble types, focusing on separation star-forming (SF) regions those better characterized as diffuse ionized (DIG). The diagnosis is carried out terms equivalent width H α (WH α). Three nebular regimes are identified. Regions where WH < 3 Å define what we call hDIG, component DIG photoionization dominated by hot, low-mass, evolved...
In a companion paper we have presented many products derived from the application of spectral synthesis code STARLIGHT to datacubes CALIFA survey, including 2D maps stellar population properties and 1D averages in temporal spatial dimensions. Here evaluate uncertainties these products. Uncertainties due noise shape calibration errors method are investigated by means suite simulations based on 1638 spectra for NGC 2916, with perturbations amplitudes gauged terms expected errors. A separate...
This paper presents the mass assembly time scales of nearby galaxies observed by CALIFA at 3.5m telescope in Calar Alto. We apply fossil record method stellar populations to complete sample 3rd data release, with a total 661 galaxies, covering masses from 10$^{8.4}$ 10$^{12}$ M$_{\odot}$ and wide range Hubble types. spectral synthesis techniques datacubes process results produce growth weighted ages, which we obtain temporal spatially resolved information seven bins galaxy morphology six...
This paper presents the spatially resolved star formation history (SFH) of nearby galaxies with aim furthering our understanding different processes involved in and evolution galaxies. To this end, we apply fossil record method stellar population synthesis to a rich diverse data set 436 observed integral field spectroscopy CALIFA survey. The sample covers wide range Hubble types, masses ranging from $M_\star \sim 10^9$ $7 \times 10^{11} M_\odot$. Spectral techniques are applied datacubes...
We investigate the impact of diffuse ionized gas (DIG) on abundance determinations in star-forming (SF) galaxies. The DIG is characterised using H$\alpha$ equivalent width ($W_{\text{H}\alpha}$). From a set 1,409 SF galaxies from Mapping Nearby Galaxies at APO (MaNGA) survey, we calculate fractional contribution to several emission lines high-$S/N$ data spaxels (instead noisy emission-lines DIG-dominated spaxels). Our method applicable spectra with observed $W_{\text{H}\alpha} \gtrsim 10$...
We present an extended version of the spectral synthesis code STARLIGHT designed to incorporate both $\lambda$-by-$\lambda$ spectra and photometric fluxes in estimation stellar population properties galaxies. The is tested with simulations data for 260 galaxies culled from CALIFA survey, spatially matching 3700--7000 \AA\ optical datacubes GALEX near far UV images. sample spans E--Sd masses $10^9$ $10^{12} M_\odot$ populations all way star-forming old, passive systems. Comparing results...
The Calar Alto Legacy Integral Field Area (CALIFA) survey, a pioneer in integral field spectroscopy legacy projects, has fostered many studies exploring the information encoded on spatially resolved data gaseous and stellar features optical range of galaxies. We describe value-added catalogue population properties for CALIFA galaxies analysed with spectral synthesis code starlight processed pycasso platform. Our public database (http://pycasso.ufsc.br/, mirror at http://pycasso.iaa.es/)...
We investigated the mass-to-light versus color relations (MLCRs) derived from spatially resolved star formation history of a sample 452 galaxies observed with integral field spectroscopy in CALIFA survey. stellar mass ($M_\star$) and surface density combination full spectral fitting (using different sets population models) synthetic colors optical broad bands. This method allows obtaining radial structure ratio ($M/L$) at several wavelengths studying MLCRs. Our covers wide range Hubble types...