Zobrazeno 1 - 10
of 1 041
pro vyhledávání: '"Delgado, David A."'
Autor:
Miro-Carretero, Juan, Gomez-Flechoso, Maria A., Martinez-Delgado, David, Cooper, Andrew P., Roca-Fabrega, Santi, Akhlaghi, Mohammad, Pillepich, Annalisa, Kuijken, Konrad, Erkal, Denis, Buck, Tobias, Hellwing, Wojciech A., Bose, Sownak, Donatiello, Giuseppe, Frenk, Carlos S.
According to the well established hierarchical framework for galaxy evolution, galaxies grow through mergers with other galaxies and the LambdaCDM cosmological model predicts that the stellar halos of massive galaxies are rich in remnants from minor
Externí odkaz:
http://arxiv.org/abs/2409.03585
Autor:
Miro-Carretero, Juan, Martinez-Delgado, David, Gomez-Flechoso, Maria A., Cooper, Andrew, Akhlaghi, Mohammad, Donatiello, Giuseppe, Kuijken, Konrad, Makarov, Dmitry, Laine, Seppo, Roca-Fabrega, Santi
Publikováno v:
A&A 691, A196 (2024)
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 substructures have been identified and their link to galaxy evolution has been t
Externí odkaz:
http://arxiv.org/abs/2407.20483
Autor:
Sakowska, Joanna D., Noël, Noelia E. D., Ruiz-Lara, Tomás, Gallart, Carme, Massana, Pol, Nidever, David L., Cassisi, Santi, Correa-Amaro, Patricio, Choi, Yumi, Besla, Gurtina, Erkal, Denis, Martínez-Delgado, David, Monelli, Matteo, Olsen, Knut A. G., Stringfellow, Guy S.
We obtain a quantitative star formation history (SFH) of a shell-like structure ('shell') located in the northeastern part of the Small Magellanic Cloud (SMC). We use the Survey of the MAgellanic Stellar History (SMASH) to derive colour-magnitude dia
Externí odkaz:
http://arxiv.org/abs/2407.13876
Autor:
Aguilar-Arevalo, Alexis A., Avalos, Nicolas, Bellino, Pablo, Bertou, Xavier, Bonifazi, Carla, Botti, Ana, Cababié, Mariano, Cancelo, Gustavo, Cervantes-Vergara, Brenda A., Chavez, Claudio, Chierchie, Fernando, Delgado, David, Depaoli, Eliana, D'Olivo, Juan Carlos, Anjos, João dos, Estrada, Juan, Moroni, Guillermo Fernandez, Neto, Aldo R. Fernandes, Ford, Richard, Kilminster, Ben, Kuk, Kevin, Lathrop, Andrew, Lemos, Patrick, Lima Jr., Herman P., Makler, Martin, Magnoni, Agustina, Maslova, Katherine, Marinho, Franciole, Molina, Jorge, Nasteva, Irina, Oliveira, Ana Carolina, Perez, Santiago, Paulucci, Laura, Rodrigues, Dario, Sarkis, Youssef, Sidelnik, Ivan, Haro, Miguel Sofo, Stalder, Diego, Tiffenberg, Javier, Ventura, Pedro
Millicharged particles, proposed by various extensions of the standard model, can be created in pairs by high-energy photons within nuclear reactors and can interact electromagnetically with electrons in matter. Recently, the existence of a plasmon p
Externí odkaz:
http://arxiv.org/abs/2405.16316
Autor:
Martinez-Delgado, David, Stein, Michael, Pawlowski, Marcel S., Makarov, Dmitry, Makarova, Lidia, Donatiello, Giuseppe, Lang, Dustin
The problem of missing satellites still remains one of the well-known problems of the Lambda-CDM cosmological theory. Despite significant progress in cosmological modeling achieved in recent years, the search for new dwarf galaxies-satellites of near
Externí odkaz:
http://arxiv.org/abs/2405.03769
Stellar streams have proven to be powerful tools for measuring the Milky Way's gravitational potential and hence its dark matter halo. In the coming years, Vera Rubin, Euclid, ARRAKIHS, and NGRST will uncover a plethora of streams around external gal
Externí odkaz:
http://arxiv.org/abs/2402.13314
Robots that cooperate with humans must be effective at communicating with them. However, people have varied preferences for communication based on many contextual factors, such as culture, environment, and past experience. To communicate effectively,
Externí odkaz:
http://arxiv.org/abs/2401.03088
Autor:
Laine, Seppo, Martınez-Delgado, David, Webb, Kristi A., Akhlaghi, Mohammad, Baena-Gallé, Roberto, Paudel, Sanjaya, Stein, Michael, Erkal, Denis
We have investigated the properties (e.g., age, metallicity) of the stellar populations of a ring-like tidal stellar stream (or streams) around the edge-on galaxy SPRC047 (z = 0.031) using spectral energy distribution (SED) fits to integrated broad-b
Externí odkaz:
http://arxiv.org/abs/2312.05358
In recent years, there is a growing interest in combining techniques attributed to the areas of Statistics and Machine Learning in order to obtain the benefits of both approaches. In this article, the statistical technique lasso for variable selectio
Externí odkaz:
http://arxiv.org/abs/2309.03770
We investigate theoretically the circular polarization signals induced by the Zeeman effect in the Fe II lines of the 279.3-280.7 nm spectral range of the CLASP2 space experiment and their suitability to infer solar magnetic fields. To this end, we u
Externí odkaz:
http://arxiv.org/abs/2307.01641