activity
20162026
most citedThe miniJPAS survey: star-galaxy classification using machine learning

55 citations · 132 across the 16 of their papers we have counts for

collaborators

18 papers

astro-ph.CO2026

eROSITA cosmology with galaxy groups: Hot gas budget out to the virial radius

H. Khalil, A. Finoguenov, D. Eckert +4

Non-gravitational processes that expel hot gas beyond the virial regions of groups and clusters of galaxies, known collectively as baryonic feedback, play a key role in reshaping t…

astro-ph.CO2026

Large eROSITA X-ray sources as 2MRS galaxy groups

A. Finoguenov, R. Seppi, D. Eckert +5

We aim to exploit the large area coverage, good sensitivity, and low instrumental background of eROSITA to detect the faint surface brightness emission of galaxy groups from the Tw…

astro-ph.CO2026

J-PAS & FLAMINGO: Cosmic voids and void galaxies in the gravitational landscape of photometric surveys

J. A. Mansour, B. McCarthy, L. J. Liivamägi +34

Photometric surveys offer a powerful way to map the large-scale structure of the Universe, but their redshift errors complicate the identification of cosmic voids, challenging stud…

astro-ph.GA2025

Portrait of a Galaxy on FIRE: Is the -bimodality a natural consequence of inside-out disc growth in a hierarchical formation scenario?

María Benito, Annaliina Aavik, Giuseppina Battaglia +7

The chemical dichotomy in the [/Fe]-[Fe/H] plane is a consequence of the complex processes underlying the formation and evolution of disc galaxies such as observed in the stella…

astro-ph.CO2025

Wide Area VISTA Extragalactic Survey (WAVES): Selection of targets for the Wide survey using decision-tree classification

G. Kaur, M. Bilicki, S. Bellstedt +11

The Wide-Area VISTA Extragalactic Survey (WAVES) on the 4-metre Multi-Object Spectroscopic Telescope (4MOST) includes two flux-limited subsurveys with very high (95\%) completeness…

astro-ph.HE2025

AXES-SDSS: Solving the puzzle of X-ray emission of optical galaxy groups via a modified Hausdorff distance

J. Kosowski, A. Finoguenov, E. Tempel +1

The identification of X-ray and CMB sources as galaxy groups and clusters is a prerequisite for cluster cosmology. But the identification of groups, especially nearby ones, suffers…

astro-ph.GA2025★ 3 cited

Extreme AGN feedback in the fossil galaxy group SDSSTG 4436

D. Eckert, F. Gastaldello, L. Lovisari +20

Supermassive black hole feedback is the currently favoured mechanism to regulate the star formation rate of galaxies and prevent the formation of ultra-massive galaxies ($M_\star>1…

astro-ph.CO2025★ 4 cited

Modelling the selection of galaxy groups with end to end simulations

R. Seppi, D. Eckert, A. Finoguenov +13

Feedback from supernovae and AGN shapes galaxy formation and evolution, yet its impact remains unclear. Galaxy groups offer a crucial probe, as their binding energy is comparable t…

astro-ph.CO2025

The J-PAS survey: The effect of photometric redshift errors on cosmic voids

J. A. Mansour, L. J. Liivamägi, A. Tamm +23

We investigated the impact of photometric redshift errors in the ongoing Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) on void identification and pro…

astro-ph.GA2024★ 7 cited

The perils of stacking optically selected groups in eROSITA data. The Magneticum perspective

P. Popesso, I. Marini, K. Dolag +23

Hydrodynamical simulation predictions are often compared with observational data without fully accounting for systematics and biases specific to observational techniques. Using the…

astro-ph.CO2024

The J-PLUS collaboration. Additive versus multiplicative systematics in surveys of the large scale structure of the Universe

C. Hernández-Monteagudo, G. Aricò, J. Chaves-Montero +19

Observational and/or astrophysical systematics modulating the observed number of luminous tracers can constitute a major limitation in the cosmological exploitation of surveys of t…

astro-ph.CO2024★ 2 cited

J-PLUS: Tomographic analysis of galaxy angular density and redshift fluctuations in Data Release 3. Constraints on photo- errors, linear bias, and peculiar velocities

C. Hernández-Monteagudo, A. Balaguera-Antolínez, R. von Marttens +19

The {\it Javalambre Photometric Local Universe Survey} (J-PLUS) is a {\it spectro-photometric} survey covering about 3,000~deg in its third data release (DR3), and containing a…

astro-ph.GA2024★ 14 cited

Detecting clusters and groups of galaxies populating the local Universe in large optical spectroscopic surveys

I. Marini, P. Popesso, K. Dolag +13

Wide-field cosmological surveys provide hundreds of thousands of spectroscopically confirmed galaxy groups and clusters, valuable for tracing baryonic matter distribution. However,…

astro-ph.GA2024★ 9 cited

AXES-2MRS: A new all-sky catalogue of extended X-ray galaxy groups

H. Khalil, A. Finoguenov, E. Tempel +1

We present a new all-sky catalogue of X-ray detected groups (AXES-2MRS), based on the identification of large X-ray sources found in the ROSAT All-Sky Survey (RASS) with the Two Mi…

astro-ph.GA2024★ 14 cited

AXES-SDSS: comparison of SDSS galaxy groups with all-sky X-ray extended sources

S. Damsted, A. Finoguenov, H. Lietzen +8

We revisit the picture of X-ray emission of groups through the study of systematic differences in the optical properties of groups with and without X-ray emission and study the eff…

astro-ph.GA2023★ 4 cited

The miniJPAS survey: Maximising the photo-z accuracy from multi-survey datasets with probability conflation

A. Hernán-Caballero, M. Akhlaghi, C. López-Sanjuan +35

We present a new method for obtaining photometric redshifts (photo-z) for sources observed by multiple photometric surveys using a combination (conflation) of the redshift probabil…

astro-ph.IM2020★ 55 cited

The miniJPAS survey: star-galaxy classification using machine learning

P. O. Baqui, V. Marra, L. Casarini +31

Future astrophysical surveys such as J-PAS will produce very large datasets, which will require the deployment of accurate and efficient Machine Learning (ML) methods. In this work…

astro-ph.GA2016★ 20 cited

The ALHAMBRA survey : band luminosity function of quiescent and star-forming galaxies at by PDF analysis

C. López-Sanjuan, E. Tempel, N. Benítez +34

Our goal is to study the evolution of the band luminosity function (LF) since using ALHAMBRA data. We used the photometric redshift and the band selection magnitude p…