Zobrazeno 1 - 10
of 2 631
pro vyhledávání: '"A, Calore"'
More than a decade ago, the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope unveiled the existence of two gigantic gamma-ray lobes known as the Fermi bubbles. While their origin is still unknown, various studies identified intricate s
Externí odkaz:
http://arxiv.org/abs/2410.19909
We perform a combined analysis of stellar kinematics and line-of-sight accelerations of millisecond pulsars to investigate the mass contents of Omega Centauri. We consider multiple mass components: the visible photometric distribution, a central clus
Externí odkaz:
http://arxiv.org/abs/2408.00939
Autor:
Frail, Dale A., Polisensky, Emil, Hyman, Scott D., Cotton, W. M., Kassim, Namir E., Silverstein, Michele L., Sengar, Rahul, Kaplan, David L., Calore, Francesca, Berteaud, Joanna, Clavel, Maica, Geyer, Marisa, Legodi, Samuel, Krishnan, Vasaant, Buchner, Sarah, Camilo, Fernando
We report on the results of an image-based search for pulsar candidates toward the Galactic bulge. We used mosaic images from the MeerKAT radio telescope, that were taken as part of a 173 deg**2 survey of the bulge and Galactic center of our Galaxy a
Externí odkaz:
http://arxiv.org/abs/2407.01773
Publikováno v:
Phys. Rev. D 110, 083042 (2024)
High-frequency gravitational waves ($f \gtrsim 1$ MHz) may provide a unique signature for the existence of exotic physics. The lack of current and future gravitational-wave experiments sensitive at those frequencies leads to the need of employing dif
Externí odkaz:
http://arxiv.org/abs/2406.17853
Autor:
Kantzas, Dimitrios, Calore, Francesca
Publikováno v:
A&A 690, A87 (2024)
The origin of Galactic cosmic rays (CRs) is unknown even though they have traditionally been connected to supernovae based on energetic arguments. In the past decades, Galactic black holes in X-ray binaries (BHXBs) have been proposed as candidate sou
Externí odkaz:
http://arxiv.org/abs/2406.11981
Millisecond pulsars (MSPs) are abundant in globular clusters (GCs), which offer favorable environments for their creation. While the advent of recent, powerful facilities led to a rapid increase in MSP discoveries in GCs through pulsation searches, d
Externí odkaz:
http://arxiv.org/abs/2405.15691
Autor:
Lella, Alessandro, Calore, Francesca, Carenza, Pierluca, Eckner, Christopher, Giannotti, Maurizio, Lucente, Giuseppe, Mirizzi, Alessandro
Publikováno v:
JCAP 11 (2024) 009
Axion-like particles (ALPs) coupled to nucleons can be efficiently produced in the interior of protoneutron stars (PNS) during supernova (SN) explosions. If these ALPs are also coupled to photons they can convert into gamma rays in the Galactic magne
Externí odkaz:
http://arxiv.org/abs/2405.02395
Autor:
Thongmeearkom, T., Clark, C. J., Breton, R. P., Burgay, M., Nieder, L., Freire, P. C. C., Barr, E. D., Stappers, B. W., Ransom, S. M., Buchner, S., Calore, F., Champion, D. J., Cognard, I., Grießmeier, J. -M., Kramer, M., Levin, L., Padmanabh, P. V., Possenti, A., Ridolfi, A., Krishnan, V. Venkatraman, Vleeschower, L.
Redbacks are millisecond pulsar binaries with low mass, irradiated companions. These systems have a rich phenomenology that can be used to probe binary evolution models, pulsar wind physics, and the neutron star mass distribution. A number of high-co
Externí odkaz:
http://arxiv.org/abs/2403.09553
Autor:
Song, Deheng, Eckner, Christopher, Gordon, Chris, Calore, Francesca, Macias, Oscar, Abazajian, Kevork N., Horiuchi, Shunsaku, Kaplinghat, Manoj, Pohl, Martin
Publikováno v:
2024MNRAS.530.4395S
The gamma-ray Fermi-LAT Galactic centre excess (GCE) has puzzled scientists for over 15 years. Despite ongoing debates about its properties, and especially its spatial distribution, its nature remains elusive. We scrutinize how the estimated spatial
Externí odkaz:
http://arxiv.org/abs/2402.05449
The nature of the GeV gamma-ray Galactic center excess (GCE) in the data of Fermi-Large Area Telescope (LAT) is still to be unveiled. We present a new analysis of the inner Galaxy Fermi-LAT data at energies above 10 GeV, based on an innovative method
Externí odkaz:
http://arxiv.org/abs/2402.04733