Zobrazeno 1 - 10
of 237
pro vyhledávání: '"Nucita, Achille"'
Publikováno v:
Symmetry 2023, 15, 160
As galactic halos are not directly visible, there are many ambiguities regarding their composition and rotational velocity. Though most of the dark matter is non-baryonic, {\it some fraction is}, and it can be used to trace the halo rotation. Asymmet
Externí odkaz:
http://arxiv.org/abs/2301.03249
Publikováno v:
Universe 2022, 8, 620
The standard technique for very low-frequency gravitational wave detection is mainly based on searching for a specific spatial correlation in the variation of the times of arrival of the radio pulses emitted by millisecond pulsars with respect to a t
Externí odkaz:
http://arxiv.org/abs/2212.05279
The rotation of the galactic objects has been seen by asymmetric Doppler shift in the CMB data. Molecular hydrogen clouds at virial temperature may contribute to the galactic halo dark matter and they might be the reason for the observed rotational a
Externí odkaz:
http://arxiv.org/abs/2206.15197
Publikováno v:
A&A 664, A30 (2022)
Temperature asymmetry in the cosmic microwave background (CMB) data by the Planck satellite has been discovered and analyzed toward several nearby edge-on spiral galaxies. It provides a way to probe galactic halo rotation, and to constrain the baryon
Externí odkaz:
http://arxiv.org/abs/2206.14545
Autor:
Bachelet, Etienne, Specht, David, Penny, Matthew, Hundertmark, Markus, Awiphan, Supachai, Beaulieu, Jean-Philippe, Dominik, Martin, Kerins, Eamonn, Maoz, Dan, Meade, Evan, Nucita, Achille, Poleski, Radek, Ranc, Clement, Rhodes, Jason, Robin, Annie
Publikováno v:
A&A 664, A136 (2022)
As the Kepler mission has done for hot exoplanets, the ESA Euclid and NASA Roman missions have the potential to create a breakthrough in our understanding of the demographics of cool exoplanets, including unbound, or "free-floating", planets (FFPs).
Externí odkaz:
http://arxiv.org/abs/2202.09475
Publikováno v:
Symmetry 13, 2418 (2021)
Pulsar timing uses the highly stable pulsar spin period to investigate many astrophysical topics. In particular, pulsar timing arrays make use of a set of extremely well-timed pulsars and their time correlations as a challenging detector of gravitati
Externí odkaz:
http://arxiv.org/abs/2112.08064
Publikováno v:
Arabian Journal of Mathematics 8, no. 3 (2019): 193-199
The rotation of the galactic halos is a fascinating topic which is still waiting to be addressed. Planck data has shown the existence of a temperature asymmetry towards the halo of several nearby galaxies, such as M31, NGC 5128, M33, M81, and M82. Ho
Externí odkaz:
http://arxiv.org/abs/2111.08373
We suggest the possibility of including millisecond pulsars inside the core of globular clusters in pulsar timing array experiments. Since they are very close to each other, their gravitational wave induced timing residuals are expected to be almost
Externí odkaz:
http://arxiv.org/abs/2110.11046
Publikováno v:
published in Astrophysic and Space Science, 2021
Primordial black holes (PBHs) may form in the early stages of the Universe via the collapse of large density perturbations. Depending on the formation mechanism, PBHs may exist and populate today the galactic halos and have masses in a wide range, fr
Externí odkaz:
http://arxiv.org/abs/2109.04857
Astrometric observations of microlensing events can be used to obtain important information about lenses. During these events, the shift of the position of the multiple image centroid with respect to the source star location can be measured. This eff
Externí odkaz:
http://arxiv.org/abs/1806.06636