Zobrazeno 1 - 10
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pro vyhledávání: '"Hilker M"'
Dynamical friction works very differently for Newtonian gravity with dark matter and in modified Newtonian dynamics (MOND). While the absence of dark matter considerably reduces the friction in major galaxy mergers, analytic calculations indicate the
Externí odkaz:
http://arxiv.org/abs/2407.11139
Autor:
Saito, R. K., Hempel, M., Alonso-García, J., Lucas, P. W., Minniti, D., Alonso, S., Baravalle, L., Borissova, J., Caceres, C., Chené, A. N., Cross, N. J. G., Duplancic, F., Garro, E. R., Gómez, M., Ivanov, V. D., Kurtev, R., Luna, A., Majaess, D., Navarro, M. G., Pullen, J. B., Rejkuba, M., Sanders, J. L., Smith, L. C., Albino, P. H. C., Alonso, M. V., Amôres, E. B., Angeloni, R., Arias, J. I., Arnaboldi, M., Barbuy, B., Bayo, A., Beamin, J. C., Bedin, L. R., Bellini, A., Benjamin, R. A., Bica, E., Bonatto, C. J., Botan, E., Braga, V. F., Brown, D. A., Cabral, J. B., Camargo, D., Garatti, A. Caratti o, Carballo-Bello, J. A., Catelan, M., Chavero, C., Chijani, M. A., Clariá, J. J., Coldwell, G. V., Peña, C. Contreras, Ramos, R. Contreras, Corral-Santana, J. M., Cortés, C. C., Cortés-Contreras, M., Cruz, P., Daza-Perilla, I. V., Debattista, V. P., Dias, B., Donoso, L., D'Souza, R., Emerson, J. P., Federle, S., Fermiano, V., Fernandez, J., Fernández-Trincado, J. G., Ferreira, T., Lopes, C. E. Ferreira, Firpo, V., Flores-Quintana, C., Fraga, L., Froebrich, D., Galdeano, D., Gavignaud, I., Geisler, D., Gerhard, O. E., Gieren, W., Gonzalez, O. A., Gramajo, L. V., Gran, F., Granitto, P. M., Griggio, M., Guo, Z., Gurovich, S., Hilker, M., Jones, H. R. A., Kammers, R., Kuhn, M. A., Kumar, M. S . N., Kundu, R., Lares, M., Libralato, M., Lima, E., Maccarone, T. J., Cortés, P. Marchant, Martin, E. L., Masetti, N., Matsunaga, N., Mauro, F., McDonald, I., Mejías, A., Mesa, V., Milla-Castro, F. P., Minniti, J. H., Bidin, C. Moni, Montenegro, K., Morris, C., Motta, V., Navarete, F., Molina, C. Navarro, Nikzat, F., Castellón, J. L. Nilo, Obasi, C., Ortigoza-Urdaneta, M., Palma, T., Parisi, C., Ramírez, K. Pena, Pereyra, L., Perez, N., Petralia, I., Pichel, A., Pignata, G., Alegría, S. Ramírez, Rojas, A. F., Rojas, D., Roman-Lopes, A., Rovero, A. C., Saroon, S., Schmidt, E. O., Schröder, A. C., Schultheis, M., Sgró, M. A., Solano, E., Soto, M., Stecklum, B., Steeghs, D., Tamura, M., Tissera, P., Valcarce, A. A. R., Valotto, C. A., Vasquez, S., Villalon, C., Villanova, S., Cádiz, F. Vivanco, Bacigalupo, R. Zelada, Zijlstra, A., Zoccali, M.
The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from $2009-2015$. Upon its conclusion, the complementary VVV eXtended (VVVX) survey has expanded both the temp
Externí odkaz:
http://arxiv.org/abs/2406.16646
Autor:
Federle, S., Gómez, M., Mieske, S., Harris, W. E., Hilker, M., Yegorova, I. A., Harris, G. L. H.
In this work we perform the photometric analysis of the globular cluster system (GCS) of the giant elliptical NGC4696, which is the brightest member of Centaurus, a rich and dynamically young galaxy cluster. We obtained deep Magellan 6.5 m/MegaCam (g
Externí odkaz:
http://arxiv.org/abs/2406.08635
The majority of Galactic globular clusters (GCs) contain multiple stellar populations displaying specific chemical abundance variations. In particular, GCs generally contain a `primordial' population with abundances similar to field stars, along with
Externí odkaz:
http://arxiv.org/abs/2301.04166
Autor:
Napolitano, N. R., Gatto, M., Spiniello, C., Cantiello, M., Hilker, M., Arnaboldi, M., Tortora, C., Chaturvedi, A., D'Abrusco, R., Li, R., Paolillo, M., Peletier, R., Saifollahi, T., Spavone, M., Venhola, A., Pota, V., Capaccioli, M., Longo, G.
The COld STream finder Algorithm (COSTA) is a novel algorithm to find streams in the phase space of planetary nebulae (PNe) and globular cluster (GCs) populations. COSTA isolates groups of particles with small velocity dispersion, using an iterative
Externí odkaz:
http://arxiv.org/abs/2109.08695
Autor:
Iani, E., Zanella, A., Vernet, J., Richard, J., Gronke, M., Harrison, C. M., Arrigoni-Battaia, F., Rodighiero, G., Burkert, A., Behrendt, M., Chen, Chian-Chou, Emsellem, E., Fensch, J., Hibon, P., Hilker, M., Floc'h, E. Le, Mainieri, V., Swinbank, A. M., Valentino, F., Vanzella, E., Zwaan, M. A.
Publikováno v:
MNRAS 507, 3830-3848 (2021)
Giant star-forming regions (clumps) are widespread features of galaxies at $z \approx 1-4$. Theory predicts that they can play a crucial role in galaxy evolution if they survive to stellar feedback for > 50 Myr. Numerical simulations show that clumps
Externí odkaz:
http://arxiv.org/abs/2109.06898
Autor:
Fahrion, K., Lyubenova, M., van de Ven, G., Hilker, M., Leaman, R., Falcón-Barroso, J., Bittner, A., Coccato, L., Corsini, E. M., Gadotti, D. A., Iodice, E., McDermid, R. M., Martín-Navarro, I., Pinna, F., Poci, A., Sarzi, M., de Zeeuw, P. T., Zhu, L.
Publikováno v:
A&A 650, A137 (2021)
Nuclear star clusters (NSCs) are the densest stellar systems in the Universe and are found in the centres of all types of galaxies. They are thought to form via mergers of star clusters such as ancient globular clusters (GCs) that spiral to the centr
Externí odkaz:
http://arxiv.org/abs/2104.06412
Publikováno v:
A&A 649, A93 (2021)
Massive early-type galaxies are believed to be the end result of an extended mass accretion history. The stars formed in situ very early on in the initial phase of the assembly might have originated from an extremely intense star formation burst, and
Externí odkaz:
http://arxiv.org/abs/2012.11609
Publikováno v:
A&A 645, L1 (2021)
The stellar initial mass function (IMF) seems to be variable and not universal, as argued in the literature in the last three decades. Several relations among the low-mass end of the IMF slope and other stellar population, photometric or kinematic pa
Externí odkaz:
http://arxiv.org/abs/2012.01431
Publikováno v:
A&A 643, A120 (2020)
The early-type galaxy NGC 1316 hosts about 10^7 solar masses of dust within a central radius of 5 kpc. These prominent dust structures are believed to have an external origin, which is also a popular interpretation for other dusty early-type galaxies
Externí odkaz:
http://arxiv.org/abs/2010.01606