A5075921348- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Remote Sensing in Agriculture
- Stellar, planetary, and galactic studies
- Advanced Vision and Imaging
- Data Visualization and Analytics
- Advanced Fluorescence Microscopy Techniques
- Visual perception and processing mechanisms
- Speech and Audio Processing
- Geophysics and Sensor Technology
- Leaf Properties and Growth Measurement
- Seismic Waves and Analysis
- Plant Water Relations and Carbon Dynamics
- Species Distribution and Climate Change
- Astrophysics and Cosmic Phenomena
- Adaptive optics and wavefront sensing
- Gait Recognition and Analysis
- Gamma-ray bursts and supernovae
- Spectroscopy and Chemometric Analyses
- Remote Sensing and LiDAR Applications
University of Manchester
2022-2024
Universidade Federal do Rio Grande
2019-2022
Universidade de São Paulo
2021
Abstract We present results on the morphological and structural evolution of a total 3956 galaxies observed with JWST at 1.5 < z 6.5 in CEERS observations that overlap CANDELS EGS field. This is biggest visually classified sample yet, ∼20 times larger than previous studies, allows us to examine detail how galaxy structure has changed over this critical epoch. All sources were by six individual classifiers using simple classification scheme aimed producing disk/spheroid/peculiar...
ABSTRACT We present the results of a size and structural analysis 1395 galaxies at 0.5 ≤ z ≲ 8 with stellar masses log (M*/M⊙)&gt; 9.5 within James Webb Space Telescope Public CEERS field that overlaps Hubble Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey EGS observations. use GALFIT to fit single Sérsic models rest-frame optical profile our galaxies, which is mass-selected sample complete redshift mass limit. Our primary result fixed wavelength mass, get progressively...
The various Euclid imaging surveys will become a reference for studies of galaxy morphology by delivering over an unprecedented area 15 000 square degrees with high spatial resolution. In order to understand the capabilities measuring morphologies from Euclid-detected galaxies and help implement measurements in pipeline, we have conducted Morphology Challenge, which present two papers. While companion paper Merlin et al. focuses on analysis photometry, this assesses accuracy parametric...
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will soon start to scan thousands square degrees northern extragalactic sky with a unique set $56$ optical filters from dedicated $2.55$m telescope, JST, at Javalambre Observatory. Before arrival final instrument (a 1.2 Gpixels, 4.2deg$^2$ field-of-view camera), JST was equipped an interim camera (JPAS-Pathfinder), composed one CCD 0.3deg$^2$ and resolution 0.23 arcsec pixel$^{-1}$. To demonstrate scientific...
The European Space Agency's Euclid mission will provide high-quality imaging for about 1.5 billion galaxies. A software pipeline to automatically process and analyse such a huge amount of data in real time is being developed by the Science Ground Segment Consortium; this include model-fitting algorithm, which photometric morphological estimates paramount importance core science goals legacy science. Morphology Challenge comparative investigation performance five packages on simulated data,...
The miniJPAS is a 1 deg$^2$ survey that uses the Javalambre-Physics of Accelerating Universe Astrophysical Survey (J-PAS) filter system (54 narrow-band filters) with Pathfinder camera. We study mJPC2470-1771, most massive cluster detected in miniJPAS. stellar population properties members, their star formation rates (SFR), histories (SFH), emission line galaxy (ELG) population, spatial distribution, and effect environment on them, showing power J-PAS to role evolution. use spectral energy...
In this work we introduce the curvature of a galaxy brightness profile to identify its structural subcomponents in non-parametrically fashion. Bulges, bars, disks, lens, rings and spiral arms are key understand formation evolution path undertook. Identifying them is also crucial for morphological classification galaxies. We measure analyse detail $14$ galaxies with varied morphology. High (low) steepness profiles show high measures. Transitions between components identified as local peaks...
ABSTRACT We explore the morphometric properties of a group 73 ram-pressure stripping candidates in A901/A902 multicluster system, at z∼ 0.165, to characterize morphologies and structural evolution jellyfish galaxies. By employing quantitative measurement indicators with algorithm morfometryka on Hubble Space Telescope (F606W) images galaxies, we present novel morphology-based method for determining trail vectors. study surface brightness profiles curvature compare results obtained two...
A detailed study of the morphology lenticular galaxies is an important way to understand how this type galaxy formed and evolves over time. Decomposing a into its components (disc, bulge, bar, ...) allows recovering colour gradients present in each system, star formation history, assembly history. We use GALFITM perform multi-wavelength structural decomposition closest galaxy, NGC 3115, resulting description stellar light several main components: thin disc, thick disc also evidence bar....
The morphological diversity of galaxies is a relevant probe galaxy evolution and cosmological structure formation, but the classification in large sky surveys becoming significant challenge. We use data from Stripe-82 area observed by Southern Photometric Local Universe Survey (S-PLUS) twelve optical bands, present catalogue morphologies brighter than $r=17$ mag determined both using novel multi-band morphometric fitting technique Convolutional Neural Networks (CNNs) for computer vision....
We present results on the morphological and structural evolution of a total 4265 galaxies observed with JWST at $1.5 < z 8$ in CEERS observations that overlap CANDELS EGS field. This is biggest visually classified sample yet, $\sim20$ times larger than previous studies, allows us to examine detail how galaxy structure has changed over this critical epoch. All sources were by six individual classifiers using simple classification scheme aimed produce disk/spheroid/peculiar classifications,...
ABSTRACT Disentangling the radio flux contribution from star formation (SF) and active-galactic-nuclei (AGNs) activity is a long-standing problem in extragalactic astronomy, since at frequencies of ≲ 10 GHz, both processes emit synchrotron radiation. We present this work general objectives PARADIGM (PAnchromatic high-Resolution Analysis DIstant Galaxy Mergers) project, multi-instrument concept to explore SF mass assembly galaxies. introduce two novel approaches for detailed multiscale study...
We present the results of a size and structural analysis 1395 galaxies at $0.5 \leq z \lesssim 8$ with stellar masses $\log \left(M_* / M_{\odot}\right)$ $>$ 9.5 within JWST Public CEERS field that overlaps HST CANDELS EGS observations. use GALFIT to fit single S\'ersic models rest-frame optical profile our galaxies, which is mass-selected sample complete redshift mass limit. Our primary result fixed wavelength mass, get progressively smaller, evolving as $\sim (1+z)^{-0.71\pm0.19}$ up $z...
Abstract Galaxy morphologies reflect the shapes of galaxies and their structural components, such as bulges, discs, bars, spiral arms, etc. The detailed knowledge morphology a galaxy provides understanding physics behind its evolution, since time formation, including interaction processes influence environment. Thus, more precisely we can describe structure, may understand about formation evolution. We present method that measures curvature, using images, to structure infer each component...
This work is a Brazilian-Indian collaboration. It aims at investigating the structuralproperties of Lenticular galaxies in Stripe 82 using combination S-PLUS (Southern Photometric Local Universe Survey) and SDSS data. noveloptical multi-wavelength survey which will cover nearly 8000 square degrees Southern hemisphere next years first data release covers area. The morphological classification study galaxies' stellar population be performed combining Bayesian Spectral type (from BPZ)...
Abstract Jellyfish galaxies are the most striking examples of undergoing ram pressure stripping – removal gas as a result hydrodynamic friction in dense environments. As part OMEGA (OSIRIS Mapping Emission-line Galaxies Abell 901/2) survey, we have identified largest sample jellyfish single system to this date, located 901/2 multi-cluster at z ˜ 0.165. We present our results with detailed description regarding their very high star formation rates and unique spatial distribution pattern that...
We explore the morphometric properties of a group 73 ram pressure stripping candidates in A901/A902 multi-cluster system, at z$\sim$0.165, to characterise morphologies and structural evolution jellyfish galaxies. By employing quantitative measurement indicators with algorithm \textsc{morfometryka} on Hubble Space Telescope (F606W) images galaxies, we present novel morphology-based method for determining trail vectors. study surface brightness profiles curvature compare results obtained two...
This work is a Brazilian-Indian collaboration. It aims at investigating the structural properties of Lenticular galaxies in Stripe 82 using combination S-PLUS (Southern Photometric Local Universe Survey) and SDSS data. novel optical multi-wavelength survey which will cover nearly 8000 square degrees Southern hemisphere next years first data release covers area. The morphological classification study galaxies’ stellar population be performed combining Bayesian Spectral type (from BPZ)...