67 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto de Astrofísica de AndalucíaES13 papers
- Centro de Estudios de Física del Cosmos de AragónES8 papers
- Universidad Complutense de MadridES7 papers
- University of SurreyGB7 papers
- Instituto de Astrofísica de CanariasES6 papers
- Perimeter InstituteCA6 papers
- Universidad de La LagunaES6 papers
- Fundacion Agencia Aragonesa para la Investigacion y el DesarrolloES5 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Leiden UniversityNL4 papers
- Special Astrophysical ObservatoryRU4 papers
- California Institute of TechnologyUS3 papers
17 papers
Stellar streams around dwarf galaxies in the Local Universe
Joanna D. Sakowska, David Martínez-Delgado, Sarah Pearson +6
While mergers between massive galaxies and their dwarf satellites are well studied, the properties of dwarf - dwarf satellite mergers are not well constrained. Stellar streams trac…
A high geometric albedo and small size of the Haumea cluster member (24835) 1995 SM55 from a stellar occultation and photometric observations
J. L. Ortiz, N. Morales, B. Sicardy +98
Trans-Neptunian objects (TNOs) are among the most ancient bodies of the solar system. Understanding their physical properties is key to constraining their origin and the evolution…
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…
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…
From an attention economy to an ecology of attending. A manifesto
Gunter Bombaerts, Tom Hannes, Martin Adam +52
As the signatories of this manifesto, we denounce the attention economy as inhumane and a threat to our sociopolitical and ecological well-being. We endorse policymakers' efforts t…
Extragalactic Stellar Tidal Streams in the Dark Energy Survey
Juan Miro-Carretero, David Martinez-Delgado, Maria A. Gomez-Flechoso +7
Stellar tidal streams are a key tracer of galaxy evolution and have the potential to provide an indirect means for tracing dark matter. For the Local Group, many diffuse substructu…
Tracing satellite planes in the Sculptor group: II. Discovery of five faint dwarf galaxies in the DESI Legacy Survey
David Martinez-Delgado, Michael Stein, Marcel S. Pawlowski +5
Although substantial progress has been made in reconciling LCDM simulations with the observed abundance and distribution of satellite galaxies, important tensions persist. Studying…
A search for stellar tidal streams around Milky Way analogues from the SAGA sample
Juan Miro-Carretero, David Martinez-Delgado, Silvia Farras-Aloy +6
Context. Stellar tidal streams are the result of tidal interactions between a central galaxy and lower mass systems like satellite galaxies or globular clusters. For the Local Grou…
A giant umbrella-like stellar stream around the tidal ring galaxy NGC 922
David Martinez-Delgado, Santi Roca-Fabrega, Juan Miro-Carretero +6
Tidal ring galaxies are observed rarely in the local universe due to their intrinsically transient nature. The tidal ring structures are the result of strong interactions between g…
Pegasus V -- a newly discovered ultra-faint dwarf galaxy on the outskirts of Andromeda
Michelle L. M. Collins, Emily J. E. Charles, David Martínez-Delgado +5
We report the discovery of an ultra-faint dwarf in the constellation of Pegasus. Pegasus~V (Peg~V) was initially identified in the public imaging data release of the DESI Legacy Im…
PyNAPLE: Lunar Surface Impact Crater Detection
Daniel Sheward, Chrysa Avdellidou, Anthony Cook +4
In the last 20 years, over 600 impact flashes have been documented on the lunar surface. This wealth of data presents a unique opportunity to study the meteoroid flux of the Earth-…
Tracing satellite planes in the Sculptor group: I. Discovery of three faint dwarf galaxies around NGC 253
David Martinez-Delgado, Dmitry Makarov, Behnam Javanmardi +7
In the last years, a new generation of large-scale imaging surveys have probed wide field regions around some nearby galaxies at unprecedented low surface brightness regime (~28.0-…
A feather on the hat: Tracing the giant stellar stream around the Sombrero galaxy
David Martinez-Delgado, Javier Roman, Denis Erkal +7
Recent evidence of extremely metal-rich stars found in the Sombrero galaxy (M104) halo suggests that this galaxy has undergone a recent major merger with a relatively massive galax…
Hidden depths in the local Universe: The Stellar Stream Legacy Survey
David Martinez-Delgado, Andrew P. Cooper, Javier Roman +26
Mergers and tidal interactions between massive galaxies and their dwarf satellites are a fundamental prediction of the Lambda-Cold Dark Matter cosmology. These events are thought t…
Pisces VII: Discovery of a possible satellite of Messier 33 in the DESI Legacy Imaging Surveys
David Martinez-Delgado, Noushin Karim, Emily J. E. Charles +5
We report deep imaging observations with DOLoRes@TNG of an ultra-faint dwarf satellite candidate of the Triangulum galaxy (M33) found by visual inspection of the public imaging dat…
Jupiter's North Equatorial Belt expansion and thermal wave activity ahead of Juno's arrival
L. N. Fletcher, G. S. Orton, J. A. Sinclair +13
The dark colors of Jupiter's North Equatorial Belt (NEB, N) appeared to expand northward into the neighboring zone in 2015, consistent with a 3-5 year cycle of activity…
Moist Convection and the 2010-2011 Revival of Jupiter's South Equatorial Belt
Leigh N. Fletcher, G. S. Orton, J. H. Rogers +4
The transformation of Jupiter's South Equatorial Belt (SEB) from its faded, whitened state in 2009-2010 to its normal brown appearance is documented via comparisons of thermal-infr…