Renato A. Dupke
A5035549888- Astronomy and Astrophysical Research
- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Astrophysics and Star Formation Studies
- Astronomical Observations and Instrumentation
- Cosmology and Gravitation Theories
- Adaptive optics and wavefront sensing
- Astrophysics and Cosmic Phenomena
- CCD and CMOS Imaging Sensors
- Astro and Planetary Science
- Scientific Research and Discoveries
- Dark Matter and Cosmic Phenomena
- Remote Sensing in Agriculture
- Radio Astronomy Observations and Technology
- History and Developments in Astronomy
- Advanced Vision and Imaging
- Solar and Space Plasma Dynamics
- Calibration and Measurement Techniques
- Geophysics and Gravity Measurements
- Atmospheric Ozone and Climate
- Black Holes and Theoretical Physics
- Particle Accelerators and Free-Electron Lasers
- Planetary Science and Exploration
University of Alabama
2015-2024
University of Michigan–Ann Arbor
2015-2024
South University
2016-2024
National Observatory
2015-2024
Valongo Observatory
2015-2024
Eureka Scientific
2013-2024
Centro de Estudios de Física del Cosmos de Aragón
2022-2024
Ministry of Science, Technology and Innovation
2020-2022
Universidade Federal do Rio Grande do Sul
2021
Laboratório Nacional de Astrofísica
2021
We present a detailed strong-lensing, weak-lensing and X-ray analysis of Abell 2744 (z= 0.308), one the most actively merging galaxy clusters known. It appears to have unleashed 'dark', 'ghost', 'bullet' 'stripped' substructures, each ∼1014 M⊙. The phenomenology is complex will challenge for numerical simulations reproduce. With new, multiband Hubble Space Telescope (HST) imaging, we identify 34 strongly lensed images 11 galaxies around massive Southern 'core'. Combining this with data from...
The Southern Photometric Local Universe Survey (S-PLUS) is imaging ~9300 deg^2 of the celestial sphere in twelve optical bands using a dedicated 0.8 m robotic telescope, T80-South, at Cerro Tololo Inter-American Observatory, Chile. telescope equipped with 9.2k by e2v detector 10 um pixels, resulting field-of-view 2 plate scale 0.55"/pixel. survey consists four main subfields, which include two non-contiguous fields high Galactic latitudes (8000 |b| > 30 deg) and areas plane bulge (for an...
J-PLUS is an ongoing 12-band photometric optical survey, observing thousands of square degrees the Northern hemisphere from dedicated JAST/T80 telescope at Observatorio Astrof\'isico de Javalambre. T80Cam a 2 sq.deg field-of-view camera mounted on this 83cm-diameter telescope, and equipped with unique system filters spanning entire range. This filter combination broad, medium narrow-band filters, optimally designed to extract rest-frame spectral features (the 3700-4000\AA\ Balmer break...
Context. Large area catalogs of galaxy clusters constructed from ROSAT All-Sky Survey provide the basis for our knowledge population thanks to long-term multiwavelength efforts follow up observations these clusters. Aims. The advent large photometric surveys superseding previous, in-depth all-sky data allows us revisit construction X-ray cluster catalogs, extending study lower masses and higher redshifts providing modeling selection function. Methods. We performed a wavelet detection sources...
The origin of the quenching in galaxies is still highly debated. Different scenarios and processes are proposed. We use multi-band (400-1600 nm) bulge-disc decompositions massive redshift range 0<z<2 to explore distribution evolution log SFR-logM* plane as a function stellar mass-weighted bulge-to-total ratio (BTM) also for internal galaxy components (bulge/disc) separately. find evidence clear link between presence bulge flattening Main Sequence high-mass end. All bulgeless (BTM<0.2) lie on...
Abstract We present the second NuSTAR and XMM-Newton extragalactic survey of JWST north ecliptic pole (NEP) time-domain field (TDF). The first NEP-TDF had 681 ks total exposure time executed in cycle 5 2019 2020. This survey, acquired from 2020 to 2022 6, adds 880 time. overall is most sensitive date, a 60 sources were detected above 95% reliability threshold. constrain hard X-ray number counts, <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>log</mml:mi>...
In these lectures I focus on early universe models which can explain the currently observed structure large scales. begin with a survey of inflationary cosmology, current paradigm for understanding origin as we observe it today. will discuss some progress and problems in cosmology before moving to description two alternative scenarios - Matter Bounce String Gas Cosmology. All connect observations via evolution cosmological perturbations topic be discussed detail lectures.
We investigate the origin and nature of multiple sloshing cold fronts in core Abell 496 by direct comparison between observations dedicated hydrodynamical simulations. Our simulations model a minor merger with 4{\times}10^13M{\circ} subcluster crossing A496 from south-west to north-north-east, passing cluster south-east at pericentre distance 100 few kpc about 0.6 0.8 Gyr ago. The gas triggered can reproduce almost all observed features, e.g. characteristic spiral-like brightness residual...
We have selected a sample of eleven massive clusters galaxies observed by the Hubble Space Telescope in order to study impact dynamical state on IntraCluster Light (ICL) fraction, ratio total integrated ICL galaxy member light. With exception Bullet cluster, is drawn from Cluster Lensing and Supernova Survey Frontier Fields program, containing five relaxed six merging clusters. The fraction calculated three optical filters using CHEFs Estimator, robust accurate algorithm free priori...
We present the photometric calibration of twelve optical passbands observed by Javalambre Photometric Local Universe Survey (J-PLUS). The proposed method has four steps: (i) definition a high-quality set stars using Gaia information and available 3D dust maps; (ii) anchoring J-PLUS gri to Pan-STARRS solution, accounting for variation with position sources on CCD; (iii) homogenization photometry in other nine filters de-reddened instrumental stellar locus (X - r) versus (g i) colours, where X...
Context. The Javalambre Photometric Local Universe Survey (J-PLUS) has obtained precise photometry in twelve specially designed filters for large numbers of Galactic stars. Deriving their stellar atmospheric parameters and individual elemental abundances is crucial studies structure, the assembly history chemical evolution our Galaxy. Aims. Our goal to estimate not only (effective temperature, Teff, surface gravity, log g, metallicity, [Fe/H]), but also [{\alpha}/Fe] four ([C/Fe], [N/Fe],...
Abstract The James Webb Space Telescope (JWST) North Ecliptic Pole (NEP) Time-domain Field (TDF) is a >14′ diameter field optimized for multiwavelength time-domain science with JWST. It has been observed across the electromagnetic spectrum both from ground and space, including Hubble (HST). As part of HST observations over three cycles (the “TREASUREHUNT” program), deep images were obtained Wide Camera on Advanced Surveys in F435W F606W that cover almost entire JWST NEP TDF. Many...
Abstract We present a catalog of stellar parameters (effective temperature T eff , surface gravity <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>log</mml:mi> <mml:mi>g</mml:mi> </mml:math> age, and metallicity [Fe/H]) elemental-abundance ratios ([C/Fe], [Mg/Fe], [ α /Fe]) for some five million stars (4.5 dwarfs 0.5 giant stars) in the Milky Way, based on colors from Javalambre Photometric Local Universe Survey (J-PLUS) DR3 Gaia EDR3. These estimates are...
The detection and study of the intracluster light (ICL) in rich clusters galaxies has been a longstanding challenge key focus. Using lowest-surface-brightness images Coma cluster g r bands, from Halos Environment Nearby Galaxies (HERON) Cluster Project we obtained most extensive image ICL single to date, spreading over 1.5 Mpc core. unprecedented wealth spectroscopic data Dark Energy Spectroscopic Instrument (DESI) Early Data Release, along with compilation NASA/IPAC Extragalactic Database...
We present a dedicated automated pipeline to construct spatially resolved emission Hα+ NII maps and derive the spectral energy distributions (SEDs) in 12 optical filters (five broad seven narrow medium) of Hα line regions nearby galaxies (z $<$ 0.0165) observed by Javalambre Photometric Local Universe Survey (J-PLUS). used J0660 filter $140$ Å width centered at $6600$ trace + emission, r i bands were estimate stellar continuum. created pure images after continnum subtraction, where...
ABSTRACT We present a weak-lensing analysis of the merging Frontier Fields (FF) cluster Abell 2744 using new Subaru/Suprime-Cam imaging. The wide-field lensing mass distribution reveals this is comprised four distinct substructures. Simultaneously modeling two-dimensional reduced shear field combination Navarro–Frenk–White (NFW) model for main core and truncated NFW models subhalos, we determine their masses locations. total system constrained as <?CDATA ${M}_{200{\rm{c}}}=(2.06\pm...
J-PAS will soon start imaging 8000 deg2 of the northern sky with its unique set 56 filters (R $\sim$ 60). Before, we observed 1 on AEGIS field an interim camera all filters. With this data (miniJPAS), aim at proving scientific potential to identify and characterize galaxy populations goal performing evolution studies across cosmic time. Several SED-fitting codes are used constrain stellar population properties a complete flux-limited sample (rSDSS <= 22.5 AB) miniJPAS galaxies that extends...
The intracluster light (ICL) fraction, measured at certain specific wavelengths, has been shown to provide a good marker for determining the dynamical stage of galaxy clusters, i.e., merging versus relaxed, small intermediate redshifts. Here, we apply it first time high-redshift system, SPT-CLJ0615-5746 z=0.97, using its RELICS (Reionization Lensing Cluster Survey) observations in optical and infrared. We find ICL fraction signature merging, with values ranging from 16 37%. A careful...
Defined as X-ray bright galaxy groups with large differences between the luminosities of their brightest and second galaxies, 'fossil groups' are believed to be some oldest systems in Universe. They have therefore been subject much recent research.
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Michael J. Gaffey; Mineralogy of Asteroids. AIP Conf. Proc. 22 September 2011; 1386 (1): 129–169. https://doi.org/10.1063/1.3636041 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Dropdown Menu input auto suggest filter your All...
J-PAS (Javalambre-PAU Astrophysical Survey) is a Spanish-Brazilian collaboration to conduct an innovative photometric survey of more than 8000 square degrees northern sky using system 57 filters, 54 narrow-band (FWHM=13.8 nm) filters continuously populating the spectrum between 370 920 nm with 10.0 steps, plus 3 broad-band filters. Together main survey, carrying out J-PLUS (the Javalambre Photometric Local Universe Survey), all-sky set 12 carefully optimized broad- and that will be used...
We present a weak-lensing and dynamical study of the complex cluster Abell 1758 (A1758, z = 0.278) supported by hydrodynamical simulations. This is composed two main structures, called A1758N A1758S. The Northern structure A1758NW & A1758NE, with lensing determined masses 7.90_{-1.55}^{+1.89} X 10^{14} M_\odot 5.49_{-1.33}^{+1.67} M_\odot, respectively. They show remarkable feature: while in there spatial agreement among weak mass distribution, intracluster medium its brightest galaxy...
The miniJPAS survey has observed $\sim 1$ deg$^2$ on the AEGIS field with 60 bands (spectral resolution of $R \sim 60$) in order to demonstrate capabilities Javalambre-Physics Accelerating Universe Astrophysical Survey (J-PAS) that will map 8000$ northern sky next years. This paper shows power J-PAS detect low mass groups and characterise their galaxy populations up $z 1$. We use spectral energy distribution fitting code BaySeAGal derive stellar population properties members 80 at \leq 0.8$...
Studies indicate strong evidence of a scaling relation in the local Universe between supermassive black hole mass ($M_\rm{BH}$) and stellar their host galaxies ($M_\star$). They even show similar histories across cosmic times differential terms: star formation rate (SFR) accretion (BHAR). However, clear picture this coevolution is far from being understood. We select an X-ray sample active galactic nuclei (AGN) up to $z=2.5$ miniJPAS footprint. Their infrared spectral energy distributions...