Zobrazeno 1 - 10
of 742
pro vyhledávání: '"Román, Javier"'
Autor:
Zaritsky, Dennis, Golini, Giulia, Donnerstein, Richard, Trujillo, Ignacio, Akhlaghi, Mohammad, Chamba, Nushkia, D'Onofrio, Mauro, Eskandarlou, Sepideh, Hosseini-ShahiSavandi, S. Zahra, Infante-Sainz, Raúl, Martin, Garreth, Montes, Mireia, Román, Javier, Sedighi, Nafise, Sharbaf, Zahra
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 $\sim$ 1 mag fainter than the Milky Way, and a catalog of 54 low central surface brightn
Externí odkaz:
http://arxiv.org/abs/2406.01912
Autor:
Conrado, Ana M., Delgado, Rosa M. González, García-Benito, Rubén, Pérez, Isabel, Verley, Simon, Ruiz-Lara, Tomás, Sánchez-Menguiano, Laura, Puertas, Salvador Duarte, Jiménez, Andoni, Domínguez-Gómez, Jesús, Espada, Daniel, Argudo-Fernández, María, Alcázar-Laynez, Manuel, Blázquez-Calero, Guillermo, Bidaran, Bahar, Zurita, Almudena, Peletier, Reynier, Torres-Ríos, Gloria, Florido, Estrella, Martínez, Mónica Rodríguez, del Moral-Castro, Ignacio, van de Weygaert, Rien, Falcón-Barroso, Jesús, Lugo-Aranda, Alejandra Z., Sánchez, Sebastián F., van der Hulst, Thijs, Courtois, Hélène M., Ferré-Mateu, Anna, Sánchez-Blázquez, Patricia, Román, Javier, Aceituno, Jesús
Publikováno v:
A&A 687, A98 (2024)
The Universe is shaped as a web-like structure, formed by clusters, filaments, and walls that leave large volumes in between named voids. Galaxies in voids have been found to be of a later type, bluer, less massive, and to have a slower evolution tha
Externí odkaz:
http://arxiv.org/abs/2404.10823
Autor:
Sazonova, Elizaveta, Morgan, Cameron, Balogh, Michael, Alatalo, Katherine, Benavides, Jose A., Bluck, Asa, Brough, Sarah, Busa, Innocenza, Demarco, Ricardo, Donevski, Darko, Figueira, Miguel, Martin, Garreth, Rodriguez-Gomez, Vicente, Román, Javier, Rowlands, Kate
Structural disturbances, such as galaxy mergers or instabilities, are key candidates for driving galaxy evolution, so it is important to detect and quantify galaxies hosting these disturbances spanning a range of masses, environments, and cosmic time
Externí odkaz:
http://arxiv.org/abs/2404.05792
Publikováno v:
A&A, 684, A99 (2024)
A number of scenarios have been proposed to explain the low velocity dispersion (and hence possible absence of dark matter) of the low surface brightness galaxies NGC1052-DF2 and NGC1052-DF4. Most of the proposed mechanisms are based on the removal o
Externí odkaz:
http://arxiv.org/abs/2402.04304
Autor:
Ogle, Patrick M., Lopez, Ivan E., Reynaldi, Victoria, Togi, Aditya, Rich, R. Michael, Roman, Javier, Caceres, Osmin, Zhuofu, Li, Donnelly, Grant, Smith, J. D. T., Appleton, Philip N., Lanz, Lauranne
Spitzer spectral maps reveal a disk of highly luminous, warm (>150 K) H2 in the center of the massive spiral galaxy Messier 58, which hosts a radio-loud AGN. The inner 2.6 kpc of the galaxy appears to be overrun by shocks from the radio jet cocoon. G
Externí odkaz:
http://arxiv.org/abs/2312.01936
Autor:
Montes, Mireia, Trujillo, Ignacio, Karunakaran, Ananthan, Infante-Sainz, Raul, Spekkens, Kristine, Golini, Giulia, Beasley, Michael, Cebrian, Maria, Chamba, Nushkia, D'Onofrio, Mauro, Kelvin, Lee, Roman, Javier
Publikováno v:
A&A 681, A15 (2024)
Almost Dark Galaxies are objects that have eluded detection by traditional surveys such as the Sloan Digital Sky Survey (SDSS). The low surface brightness of these galaxies ($\mu_r$(0)$>26$ mag/arcsec^2), and hence their low surface stellar mass dens
Externí odkaz:
http://arxiv.org/abs/2310.12231
Autor:
Martinez-Lombilla, Cristina, Infante-Sainz, Raul, Jimenez-Ibarra, Felipe, Knapen, Johan H., Trujillo, Ignacio, Comeron, Sebastien, Borlaff, Alejandro S., Roman, Javier
Publikováno v:
A&A 678, A62 (2023)
Context: The hierarchical model of galaxy formation suggests that galaxies are continuously growing. However, our position inside the Milky Way prevents us from studying the disk edge. Truncations are low surface brightness features located in the di
Externí odkaz:
http://arxiv.org/abs/2307.01106
Autor:
Román, Javier, Rich, R. Michael, Ahvazi, Niusha, Sales, Laura, Li, Chester, Golini, Giulia, Trujillo, Ignacio, Knapen, Johan H., Peletier, Reynier F., Sánchez-Alarcón, Pablo M.
Publikováno v:
A&A 679, A157 (2023)
The study of dynamically cold stellar streams reveals information about the gravitational potential where they reside and provides important constraints on dark matter properties. However, their intrinsic faintness makes detection beyond Local enviro
Externí odkaz:
http://arxiv.org/abs/2305.03073
Autor:
Namumba, Brenda, Román, Javier, Barroso, Jesus Falcon, Knapen, Johan H., Roger, Ianjamasimanana, Naluminsa, Elizabeth, Jozsa, Gyula I. G., Korsaga, Marie, Maddox, Natasha, Frank, Brad, Sikhosana, Sinenhlanhla, Legodi, Samuel, Carignan, Claude, Ponomareva, Anastasia A., Jarrett, Tom, Lucero, Danielle, Smirnov, Oleg M., van der Hulst, Thijs, Pisano, D. J., Malek, kasia, Marchetti, Lucia, Vaccari, Mattia, Jarvis, Matt, Baes, Maarten, Meyer, Martin, Adams, Elizabeth A. K., Delhaize, Jacinta, Chen, Hao, Rajohnson, Sambatriniaina, Kurapati, Sushma, Heywood, Ian, Verdes-Montenegro, Lourdes
The transformation and evolution of a galaxy is strongly influenced by interactions with its environment. Neutral hydrogen (\HI) is an excellent way to trace these interactions. Here, we present \HI\ observations of the spiral galaxy NGC~895, which w
Externí odkaz:
http://arxiv.org/abs/2303.09371