activity
20222026
most citedLIGHTS. A robust technique to identify galaxy edges

7 citations · 21 across the 12 of their papers we have counts for

collaborators

13 papers

astro-ph.GA2026

LIGHTS. Limitations of Far-Infrared Tracers for Galactic Cirrus Mitigation in the Era of Ultra-Deep Imaging

Ouldouz Kaboud, Ignacio Trujillo, Ignacio Ruiz Cejudo +18

Current and forthcoming deep optical imaging surveys are reaching surface brightness levels fainter than 30 mag/arcsec, where Galactic cirrus emission becomes a significant con…

astro-ph.GA2026

LIGHTS. The Thin Encircling Stellar Stream of NGC 3938

Dennis Zaritsky, Jacob Nibauer, Giulia Golini +17

We present a stellar stream found in images of the nearby, nearly face-on, late-type galaxy, NGC 3938 obtained for the LBT Imaging of Galactic Halos and Tidal Structures (LIGHTS) s…

astro-ph.IM2025★ 1 cited

J-PLUS: Turning Off the Bright Stars

Sepideh Eskandarlou, Mohammad Akhlaghi, Johan H. Knapen +23

Photometric surveys require precise point spread function (PSF) characterization, as it varies across filters and is crucial for accurate photometry and low surface brightness (LSB…

astro-ph.GA2025

A Pearl in the Shell: an ultra-compact dwarf within the tidal debris surrounding spiral galaxy NGC 7531

David Martínez-Delgado, Aaron J. Romanowsky, Yimeng Tang +7

Stellar substructures within tidal debris preserve information about their progenitor galaxies' properties, offering insights into hierarchical mass assembly. We examine a compact…

astro-ph.GA2025★ 7 cited

LIGHTS. A robust technique to identify galaxy edges

Giulia Golini, Ignacio Trujillo, Dennis Zaritsky +19

The LIGHTS survey is imaging galaxies at a depth and spatial resolution comparable to what the Legacy Survey of Space and Time (LSST) will produce in 10 years (i.e., 31 mag/a…

astro-ph.GA2025★ 5 cited

Stellar tidal streams around nearby spiral galaxies with deep imaging from amateur telescopes

David Martinez-Delgado, Michael Stein, Joanna D. Sakowska +26

Tidal interactions between massive galaxies and their satellites are fundamental processes in a Universe with L-Cold Dark Matter cosmology, redistributing material into faint featu…

astro-ph.GA2025★ 3 cited

UV LIGHTS. New tools for revealing the low surface brightness regime in the ultraviolet

Ignacio Ruiz Cejudo, Ignacio Trujillo, Giulia Golini +16

Ultra-deep optical surveys have reached unprecedented depths, facilitating the study of faint galactic structures. However, the ultraviolet bands, crucial for stellar population st…

astro-ph.GA2024★ 2 cited

LIGHTS. The extended point spread functions of the LIGHTS survey at the LBT

Nafise Sedighi, Zahra Sharbaf, Ignacio Trujillo +13

With the arrival of the next generation of ultra-deep optical imaging surveys reaching 30 mag/arcsec (3; 10"10"), the removal of scattered light due to th…

astro-ph.IM2024

Gnuastro: Generating polar plots in Astronomical images

Sepideh Eskandarlou, Mohammad Akhlaghi

When a structure displays dependence on distance and azimuthal angle from a center (for example the spiral arms of galaxies or the diffraction spikes of stars), projecting the pixe…

astro-ph.GA2024★ 1 cited

LIGHTS. Survey Overview and a Search for Low Surface Brightness Satellite Galaxies

Dennis Zaritsky, Giulia Golini, Richard Donnerstein +12

We present an overview of the LIGHTS (LBT Imaging of Galactic Halos and Tidal Structures) survey, which currently includes 25 nearby galaxies that are on average 1 mag faint…

astro-ph.IM2024

Gnuastro: measuring radial profiles from images

Raúl Infante-Sainz, Mohammad Akhlaghi, Sepideh Eskandarlou

Radial profiles play a crucial role in the analysis and interpretation of astronomical data, facilitating the extraction of spatial information. However, highly customizable (for d…

astro-ph.IM2023

Gnuastro: Estimating the Zero Point Magnitude in Astronomical Imaging

Sepideh Eskandarlou, Mohammad Akhlaghi, Raúl Infante-Sainz +6

Calibration of pixel values is a fundamental step for accurate measurements in astronomical imaging. In astronomical jargon this is known as estimating zero point magnitude. Here,…

astro-ph.IM2022★ 2 cited

Costs and benefits of automation for astronomical facilities

A. Yanes-Díaz, S. Rueda-Teruel, R. Bello +57

The Observatorio Astrofísico de Javalambre (OAJ†1) in Spain is a young astronomical facility, conceived and developed from the beginning as a fully automated observatory with the m…