Zobrazeno 1 - 10
of 6 013
pro vyhledávání: '"Lelli, A"'
Autor:
Lelli, Federico
Some gas-rich "ultra-diffuse" galaxies (UDGs), which are extreme examples of low surface brightness (LSB) dwarf galaxies, have been reported to lack dark matter and to be offset from the baryonic Tully-Fisher relation (BTFR). If confirmed, these UDGs
Externí odkaz:
http://arxiv.org/abs/2408.05269
Autor:
Rovida, Francesca, Faccini, Marino, Grané, Carla Molina, Cassaniti, Irene, Senatore, Sabrina, Rossetti, Eva, Scardina, Giuditta, Piazza, Manuela, Campanini, Giulia, Lilleri, Daniele, Paolucci, Stefania, Ferrari, Guglielmo, Piralla, Antonio, Defilippo, Francesco, Lelli, Davide, Moreno, Ana, Vezzosi, Luigi, Attanasi, Federica, Marzia, Soresini, Manuela, Barozzi, Cerutti, Lorenzo, Paglia, Stefano, Regazzetti, Angelo, Marcacci, Maurilia, Di Donato, Guido, Farioli, Marco, Manica, Mattia, Poletti, Piero, Lavazza, Antonio, Bonini, Maira, Merler, Stefano, Baldanti, Fausto, Cereda, Danilo, network, Lombardy Dengue
Introduction. Here we reported the virological, entomological and epidemiological characteristics of the large autochthonous outbreak of dengue (DENV) occurred in a small village of the Lombardy region (Northern Italy) during summer 2023. Methods. Af
Externí odkaz:
http://arxiv.org/abs/2408.04768
Galaxies in the early universe appear to have grown too big too fast, assembling into massive, monolithic objects more rapidly than anticipated in the hierarchical $\Lambda$CDM structure formation paradigm. The available data are consistent with ther
Externí odkaz:
http://arxiv.org/abs/2406.17930
Publikováno v:
ApJL 969 L3 (2024)
We use a new deprojection formula to infer the gravitational potential around isolated galaxies from weak gravitational lensing. The results imply circular velocity curves that remain flat for hundreds of kpc, greatly extending the classic result fro
Externí odkaz:
http://arxiv.org/abs/2406.09685
Autor:
Kelleher, Ruth, Lelli, Federico
We study the mass distribution of galaxy clusters in Milgromian dynamics, or modified Newtonian dynamics (MOND). We focus on five galaxy clusters from the X-COP sample, for which high-quality data are available on both the baryonic mass distribution
Externí odkaz:
http://arxiv.org/abs/2405.08557
Autor:
Bacchini, C., Nipoti, C., Iorio, G., Roman-Oliveira, F., Rizzo, F., Piña, P. E. Mancera, Marasco, A., Zanella, A., Lelli, F.
Local gravitational instability (LGI) is considered crucial for regulating star formation and gas turbulence in galaxy discs, especially at high redshift. Instability criteria usually assume infinitesimally thin discs or rely on approximations to inc
Externí odkaz:
http://arxiv.org/abs/2405.00103
We present WISE W1 photometry of the SPARC (Spitzer Photometry and Accurate Rotation Curves) sample. The baseline of near-IR fluxes is established for use by stellar mass models, a key component to the baryonic Tully-Fisher relation and other kinemat
Externí odkaz:
http://arxiv.org/abs/2404.02339
Autor:
Müller, Oliver, Heesters, Nick, Pawlowski, Marcel S., Kanehisa, Kosuke Jamie, Lelli, Federico, Libeskind, Noam I.
The spatial distribution of dwarf galaxies around their host galaxies is a critical test for the standard model of cosmology because it probes the dynamics of dark matter halos and is independent of the internal baryonic processes of galaxies. Co-mov
Externí odkaz:
http://arxiv.org/abs/2401.16002
We completely describe the Brill-Noether theory of pencils on general primitive covers of elliptic curves of any degree.
Comment: Added reference
Comment: Added reference
Externí odkaz:
http://arxiv.org/abs/2401.03519
Autor:
Crosby, Ethan, Jerjen, Helmut, Müller, Oliver, Pawlowski, Marcel S., Mateo, Mario, Lelli, Federico
We report the discovery of 40 new satellite dwarf galaxy candidates in the sphere of influence of the Sombrero galaxy (M104) the most luminous galaxy in the Local Volume. Using the Subaru Hyper Suprime-Cam, we surveyed 14.4 square degrees of its surr
Externí odkaz:
http://arxiv.org/abs/2312.03486