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20212026
most citedLIGHTS. A robust technique to identify galaxy edges

7 citations · 16 across the 10 of their papers we have counts for

collaborators

11 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

How large can galaxies be? Ultra-deep imaging of IC 1101, the most extended known galaxy

Carlos Marrero-de la Rosa, Ignacio Trujillo, Ignacio Ruiz Cejudo +12

The maximum physical extent that galaxies can reach is poorly understood. In this regard, IC 1101, one of the most extended and massive galaxies known, provides a valuable opportun…

astro-ph.GA2026

Witnessing the rapid growth of disk galaxies over cosmic time using JWST and HST

Samane Raji, Mireia Montes, Ignacio Trujillo +3

Measuring galaxy sizes is fundamental to understanding how galaxies grow and evolve. Traditional methods to measure sizes either trace the concentration of light (i.e., effective r…

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.GA2025★ 2 cited

Revisiting the structure of galactic disks with deep imaging

Samane Raji, Ignacio Trujillo, Fernando Buitrago +2

Thanks to new advances in astronomical imaging, we can now routinely explore disk galaxy profiles about two magnitudes deeper than the data available 20 years ago. In this regard,…

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★ 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

Automated galaxy sizes in Euclid images using the Segment Anything Model

J. Vega-Ferrero, F. Buitrago, J. Fernández-Iglesias +3

Stellar disk truncations, also referred to as galaxy edges, are key indicators of galactic size, determined by the radial location of the gas density threshold for star formation.…

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.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.GA2021

Once in a blue stream: Detection of recent star formation in the NGC 7241 stellar stream with MEGARA

David Martinez-Delgado, Santi Roca-Fabrega, Armando Gil de Paz +23

In this work we study the striking case of a narrow blue stream around the NGC 7241 galaxy and its foreground dwarf companion. We want to figure out if the stream was generated by…