Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Sankha Subhra Chakrabarty"'
Autor:
Sankha Subhra Chakrabarty, Gleason, J. R., Han, Y., Hipp, A. T., Solano, M., Sikivie, P., Sullivan, N. S., Tanner, D. B., Goryachev, M., Hartman, E., Mcallister, B. T., Quiskamp, A., Thomson, C., Tobar, M. E., Awida, M. H., Chou, A. S., Hollister, M., Knirck, S., Sonnenschein, A., Wester, W., Braine, T., Du, N., Guzzetti, M., Hanretty, C., Leum, G., Rosenberg, L. J., Rybka, G., Sinnis, J., Clarke, John, Siddiqi, I., Khatiwada, R., Carosi, G., Robertson, N., Duffy, L. D., Boutan, C., Oblath, N. S., Taubman, M. S., Yang, J., Lentz, E., Daw, E. J., Perry, M. G., Bartram, C., Buckley, J. H., Gaikwad, C., Hoffman, J., Murch, K. W., Nitta, T.
Publikováno v:
INSPIRE-HEP
We investigate reentrant and dielectric loaded cavities for the purpose of extending the range of axion cavity haloscopes to lower masses, below the range where the Axion Dark Matter eXperiment (ADMX) has already searched. Reentrant and dielectric lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f106def72ab4f2c5bd4cf2d65de78cc6
http://arxiv.org/abs/2303.07116
http://arxiv.org/abs/2303.07116
Autor:
Arianna Gallo, Luisa Ostorero, Sankha Subhra Chakrabarty, Stefano Ebagezio, Antonaldo Diaferio
We propose a new method to determine the shape of the gravitational potential of the dark matter (DM) halo of the Milky Way (MW) with the galactocentric tangential velocities of a sample of hypervelocity stars (HVSs). We compute the trajectories of d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::435c71b25667bb4a925f0adcb9de3acc
https://hdl.handle.net/2318/1888606
https://hdl.handle.net/2318/1888606
Autor:
Sankha Subhra Chakrabarty
Publikováno v:
Physical Review
Axions and axion-like particles are bosonic quantum fields. They are often assumed to follow classical field equations due to their high degeneracy in the phase space. In this work, we explore the disparity between classical and quantum field treatme
Autor:
Sankha Subhra Chakrabarty, Arianna Gallo, Stefano Ebagezio, Antonaldo Diaferio, Luisa Ostorero
Publikováno v:
Astronomy & Astrophysics. 657:A115
We show that measuring the velocity components of hypervelocity stars (HVSs) can discriminate between modified Newtonian dynamics (MOND) and Newtonian gravity. HVSs are ejected from the Galactic center on radial trajectories with a null tangential ve
Autor:
Antonaldo Diaferio, Ivan De Martino, Valentina Cesare, Sankha Subhra Chakrabarty, Arianna Gallo, Luisa Ostorero
Publikováno v:
Universe, Vol 6, Iss 107, p 107 (2020)
The cold dark matter model successfully explains both the emergence and evolution of cosmic structures on large scales and, when we include a cosmological constant, the properties of the homogeneous and isotropic Universe. However, the cold dark matt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a1a0b74028070679a354b90dac5214a
Publikováno v:
Physics of the Dark Universe. 33:100838
The Gaia map of the Milky Way reveals a pair of triangular features at nearly symmetric locations on opposite sides of the Galactic Center. In this paper we explore the implications of these features assuming they are manifestations of a caustic ring
Publikováno v:
Physical review / D, 100 (12), Art. Nr.: 125010
Physical Review
Physical Review
Quantum fields with large degeneracy are often approximated as classical fields. Here, we show how quantum and classical evolution of a highly degenerate quantum field with repulsive contact self-interactions differ from each other. Initially, the fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c454459d6bfdc2c62303d948a970a08c
https://publikationen.bibliothek.kit.edu/1000104396
https://publikationen.bibliothek.kit.edu/1000104396
Caustic rings of dark matter with $\textit{tricusp}$ cross-section were predicted to lie in the galactic disk. Their radii increase on cosmological time scales at a rate of order $1$ kpc/Gyr. When a caustic ring passes through the orbit of a star, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35ec6659160621f90c32eccbabc8d898
http://arxiv.org/abs/1808.00027
http://arxiv.org/abs/1808.00027
Publikováno v:
Physical Review
We develop a formalism to help calculate in quantum field theory the departures from the description of a system by classical field equations. We apply the formalism to a homogeneous condensate with attractive contact interactions and to a homogeneou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d39b53feea6ecab16f91ea822b9a526d
http://arxiv.org/abs/1710.02195
http://arxiv.org/abs/1710.02195
Autor:
Sankha Subhra Chakrabarty
Analysis of the correlation between the angular positions of distant radio galaxies on the sky and the orientations of their polarization vectors with respect to their major axes, indicates a dipolar anisotropy in the large scale. We consider a singl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c71b5a3c2a609479a8a21420e6ff3b8