P. Papaderos
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View article: A Census of Double-Peaked Lyman-alpha Emitters in MAGPI: Classification, Global Characteristics, and Spatially Resolved Properties
A Census of Double-Peaked Lyman-alpha Emitters in MAGPI: Classification, Global Characteristics, and Spatially Resolved Properties Open
Double-peaked Ly$α$ profiles provide critical insights into gas kinematics and the distribution of neutral hydrogen (HI) from the interstellar to the intergalactic medium (ISM to IGM), and serve as valuable diagnostics of ionising Lyman co…
View article: Euclid preparation. Using mock Low Surface Brightness dwarf galaxies to probe Wide Survey detection capabilities
Euclid preparation. Using mock Low Surface Brightness dwarf galaxies to probe Wide Survey detection capabilities Open
Local Universe dwarf galaxies are both cosmological and mass assembly probes. Deep surveys have enabled the study of these objects down to the low surface brightness (LSB) regime. In this paper, we estimate Euclid's dwarf detection capabil…
View article: Through the fog: A complementary optical galaxy classification scheme for intermediate redshifts
Through the fog: A complementary optical galaxy classification scheme for intermediate redshifts Open
Context. Understanding the evolution of galaxies strongly depends on our interpretation of their spectra. In the optical, BPT diagrams have been the main way to distinguish whether the principal excitation mechanism of a galaxy is dominate…
View article: Unveiling faint X-ray AGN populations in the NewAthena era: insights from cosmological simulations
Unveiling faint X-ray AGN populations in the NewAthena era: insights from cosmological simulations Open
Recent observations expanded our understanding of galaxy formation and evolution, yet key challenges persist in the X-ray regime, crucial for studying active galactic nuclei (AGNs). These limitations drive the development of next-generatio…
View article: Unveiling faint X-ray AGN populations in the NewAthena era: Insights from cosmological simulations
Unveiling faint X-ray AGN populations in the NewAthena era: Insights from cosmological simulations Open
Recent observations expanded our understanding of galaxy formation and evolution, yet key challenges persist in the X-ray regime, crucial for studying Active Galactic Nuclei (AGN). These limitations drive the development of next-generation…
View article: Importance of modelling the nebular continuum in galaxy spectra
Importance of modelling the nebular continuum in galaxy spectra Open
Context. Neglecting to model stellar and nebular emission has been shown to have a significant impact on the derived physical properties of galaxies experiencing high levels of star formation. This impact has been seen at low redshifts for…
View article: Importance of modelling the nebular continuum in galaxy spectra
Importance of modelling the nebular continuum in galaxy spectra Open
The neglect of modelling both stellar and nebular emission significantly affects the derived physical properties of galaxies, particularly those with high star formation rates. While this issue has been studied, it has not been established…
View article: The MAGPI survey: The interdependence of the mass, star formation rate, and metallicity in galaxies at <i>z</i> ∼ 0.3
The MAGPI survey: The interdependence of the mass, star formation rate, and metallicity in galaxies at <i>z</i> ∼ 0.3 Open
Aims. Star formation rates (SFRs), gas-phase metallicities, and stellar masses are crucial for studying galaxy evolution. The different relations resulting from these properties give insights into the complex interplay of gas inside galaxi…
View article: On the challenge of interpreting the morphology and color maps of high-z starburst galaxies with the JWST and Euclid
On the challenge of interpreting the morphology and color maps of high-z starburst galaxies with the JWST and Euclid Open
Morphology and color patterns hold fundamental insights into the early formation history of high-z galaxies. However, 2D reconstruction of rest-frame (RF) color maps of such systems from imaging data is a non-trivial task. This is mainly b…
View article: Galaxy Formation and Symbiotic Evolution with the Inter-Galactic Medium in the Age of ELT-ANDES
Galaxy Formation and Symbiotic Evolution with the Inter-Galactic Medium in the Age of ELT-ANDES Open
High-resolution absorption spectroscopy toward bright background sources has had a paramount role in understanding early galaxy formation, the evolution of the intergalactic medium and the reionisation of the Universe. However, these studi…
View article: Integral Field Spectroscopy of the cometary starburst galaxy NGC 4861
Integral Field Spectroscopy of the cometary starburst galaxy NGC 4861 Open
Using the PMAS Integral Field Unit on the Calar Alto 3.5 m telescope, we observed the southern component (Markarian 59) of the ‘cometary’ starburst galaxy NGC 4861. Mrk 59 is centred on a giant nebula and concentration of stars 1 kpc in di…
View article: Spatially resolved chemodynamics of the starburst dwarf galaxy CGCG 007-025: evidence for recent accretion of metal-poor gas
Spatially resolved chemodynamics of the starburst dwarf galaxy CGCG 007-025: evidence for recent accretion of metal-poor gas Open
Nearby metal-poor starburst dwarf galaxies present a unique opportunity to probe the physics of high-density star formation with a detail and sensitivity unmatched by any observation of the high-z Universe. Here, we present the first resul…
View article: Bulgeless disks, dark galaxies, inverted color gradients, and other expected phenomena at higher z. The chromatic surface brightness modulation (CMOD) effect
Bulgeless disks, dark galaxies, inverted color gradients, and other expected phenomena at higher z. The chromatic surface brightness modulation (CMOD) effect Open
Since the k correction depends on the spectral energy distribution (SED) of a galaxy, any high-z galaxy with a spatially non-homogeneous SED will experience a spatially varying relative dimming or brightening in addition to the pure distan…
View article: Bulgeless disks, dark galaxies, inverted color gradients, and other expected phenomena at higher <i>z</i>
Bulgeless disks, dark galaxies, inverted color gradients, and other expected phenomena at higher <i>z</i> Open
The spectral energy distribution (SED) of galaxies varies both between galaxies and within them. For instance, early-type spiral galaxies have a red bulge surrounded by a bluer star-forming disk with H II regions within. When observing red…
View article: Spatially-resolved chemodynamics of the starburst dwarf galaxy CGCG 007-025: Evidence for recent accretion of metal-poor gas
Spatially-resolved chemodynamics of the starburst dwarf galaxy CGCG 007-025: Evidence for recent accretion of metal-poor gas Open
Nearby metal-poor starburst dwarf galaxies present a unique opportunity to probe the physics of high-density star formation with a detail and sensitivity unmatched by any observation of the high-z Universe. Here we present the first result…
View article: A ∼15 kpc outflow cone piercing through the halo of the blue compact metal-poor galaxy SBS 0335–052E
A ∼15 kpc outflow cone piercing through the halo of the blue compact metal-poor galaxy SBS 0335–052E Open
Context. Outflows from low-mass star-forming galaxies are a fundamental ingredient for models of galaxy evolution and cosmology. Despite seemingly favourable conditions for outflow formation in compact starbursting galaxies, convincing obs…
View article: The resolved chemical composition of the starburst dwarf galaxy CGCG007-025: Direct method versus photoionization model fitting
The resolved chemical composition of the starburst dwarf galaxy CGCG007-025: Direct method versus photoionization model fitting Open
This work focuses on the gas chemical composition of CGCG007-025. This compact dwarf is undergoing a galaxy wide star forming burst, whose spatial behaviour has been observed by VLT/MUSE. We present a new line measurement library to treat …
View article: Improving machine learning-derived photometric redshifts and physical property estimates using unlabelled observations
Improving machine learning-derived photometric redshifts and physical property estimates using unlabelled observations Open
In the era of huge astronomical surveys, machine learning offers promising solutions for the efficient estimation of galaxy properties. The traditional, ‘supervised’ paradigm for the application of machine learning involves training a mode…
View article: Improving machine learning-derived photometric redshifts and physical property estimates using unlabelled observations
Improving machine learning-derived photometric redshifts and physical property estimates using unlabelled observations Open
In the era of huge astronomical surveys, machine learning offers promising solutions for the efficient estimation of galaxy properties. The traditional, `supervised' paradigm for the application of machine learning involves training a mode…
View article: An investigation of the star-forming main sequence considering the nebular continuum emission at low-<i>z</i>
An investigation of the star-forming main sequence considering the nebular continuum emission at low-<i>z</i> Open
Context. Galaxy evolution has been studied by interpreting the spectral energy distribution of galaxies using spectral synthesis codes. This method has been crucial in discovering different pillars of modern galaxy evolution theories. Howe…
View article: <i>Euclid</i>preparation
<i>Euclid</i>preparation Open
The Euclid Space Telescope will provide deep imaging at optical and near-infrared wavelengths, along with slitless near-infrared spectroscopy, across ~15 000deg 2 of the sky. Euclid is expected to detect ~12 billion astronomical sources, f…
View article: Exploring the genesis of spiral galaxies
Exploring the genesis of spiral galaxies Open
Context. A tantalizing enigma in extragalactic astronomy concerns the chronology and driving mechanisms of the build-up of late-type galaxies (LTGs). The standard scenario envisages two formation routes, with classical bulges (CBs) assembl…
View article: Revisiting stellar properties of star-forming galaxies with stellar and nebular spectral modelling
Revisiting stellar properties of star-forming galaxies with stellar and nebular spectral modelling Open
Spectral synthesis is a powerful tool for interpreting the physical properties of galaxies by decomposing their spectral energy distributions into the main luminosity contributors (e.g. stellar populations or ionised gas). However, the imp…
View article: Revisiting stellar properties of star-forming galaxies with stellar and nebular spectral modelling
Revisiting stellar properties of star-forming galaxies with stellar and nebular spectral modelling Open
Context. Spectral synthesis is a powerful tool for interpreting the physical properties of galaxies by decomposing their spectral energy distributions (SEDs) into the main luminosity contributors (e.g. stellar populations of distinct age a…
View article: Characterisation of the stellar content of SDSS EELGs through self-consistent spectral modelling
Characterisation of the stellar content of SDSS EELGs through self-consistent spectral modelling Open
Extreme emission line galaxies (EELGs) are a notable galaxy genus, ultimately being regarded as local prototypes of early galaxies at the cosmic noon. Robust characterisation of their stellar content, however, is hindered by the exceptiona…
View article: Euclid preparation, XXII. Selection of quiescent galaxies from mock photometry using machine learning
Euclid preparation, XXII. Selection of quiescent galaxies from mock photometry using machine learning Open
The Euclid Space Telescope will provide deep imaging at optical and\nnear-infrared wavelengths, along with slitless near-infrared spectroscopy,\nacross ~15,000 sq deg of the sky. Euclid is expected to detect ~12 billion\nastronomical sourc…
View article: Rubin-Euclid Derived Data Products – Initial Recommendations
Rubin-Euclid Derived Data Products – Initial Recommendations Open
This report is the result of a joint discussion between the Rubin and Euclid scientific communities. The work presented in this report was focused on designing and recommending an initial set of Derived Data products (DDPs) that could real…
View article: Inside-out star formation quenching and the need for a revision of bulge-disk decomposition concepts for spiral galaxies
Inside-out star formation quenching and the need for a revision of bulge-disk decomposition concepts for spiral galaxies Open
Our knowledge about the photometric and structural properties of bulges in late-type galaxies (LTGs) is founded upon image decomposition into a Sérsic model for the central luminosity excess of the bulge and an exponential model for the mo…
View article: Inside-out star formation quenching and the need for a revision of bulge-disk decomposition concepts for spiral galaxies
Inside-out star formation quenching and the need for a revision of bulge-disk decomposition concepts for spiral galaxies Open
Our knowledge about the photometric properties of bulges in late-type galaxies (LTGs) is founded upon image decomposition into a Sérsic model for the central luminosity excess of the bulge and an exponential model for the underlying disk. …
View article: New insights on the nebular emission, ionizing radiation, and low metallicity of Green Peas from advanced modelling
New insights on the nebular emission, ionizing radiation, and low metallicity of Green Peas from advanced modelling Open
Low-metallicity, compact starburst galaxies referred to as Green Peas (GPs) provide a unique window to study galactic evolution across cosmic epochs. In this work, we present new deep optical spectra for three GPs from OSIRIS at the 10-m G…