Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Pooja Bhattacharjee"'
Autor:
Pooja Bhattacharjee, Francesca Calore
Publikováno v:
Particles, Vol 7, Iss 2, Pp 489-501 (2024)
This study explores the potential for dark matter annihilation within brown dwarfs, investigating an unconventional mechanism for neutrino production. Motivated by the efficient accumulation of dark matter particles in brown dwarfs through scattering
Externí odkaz:
https://doaj.org/article/1fbc79207eb644be946003953b1d5d59
Autor:
Pooja Bhattacharjee, Pratik Majumdar, Y. Fukui, Ryo Yamazaki, Lab Saha, Tulun Ergin, Hidetoshi Sano, Shuta J. Tanaka
Star-forming (SF) regions embedded inside giant molecular clouds (GMCs) are potential contributors to Galactic gamma rays. The gamma-ray source 3FHL J1907.0+0713 is detected with a significance of roughly 13$\sigma$ in the 0.2 $-$ 300 GeV energy rang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8de41a9fa079c6ed79fe8d5ef13100e
Publikováno v:
Journal of Cosmology and Astroparticle Physics. 2021:041
The very large (100-1000) mass-to-light ratio applicable to the ultra-faint dwarf galaxies (UFDs) implies a high concentration of dark matter, thus rendering them ideal theatres for indirect signatures of dark matter. In this paper, we consider 14 re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ff2f6bac3d132cc10274f53b1371649
https://doi.org/10.1088/1475-7516/2021/06/041
https://doi.org/10.1088/1475-7516/2021/06/041
Autor:
Sayan Biswas, Pratik Majumdar, Subinoy Das, Partha S. Joarder, Pooja Bhattacharjee, Mousumi Das
Low Surface Brightness (LSB) galaxies have very diffuse, low surface density stellar disks which appear faint in optical images. They are very rich in neutral hydrogen (HI) gas, which extends well beyond the stellar disks. Their extended HI rotation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9e2f3aa1e8469ff91f0ec40a7a7f8ec
Tucana-II (Tuc-II), a recently discovered and confirmed Ultra Faint Dwarf Spheroidal galaxy, has a high mass to light ratio as well as a large line-of-sight stellar velocity dispersion, thus making it an ideal candidate for an indirect dark matter (D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0c1dd6a32cfdf4786904a459de4ad3c
Autor:
Partha S. Joarder, Mousumi Das, Subinoy Das, Pratik Majumdar, Pooja Bhattacharjee, Sayan Biswas
Triangulum-II, a newly discovered dwarf spheroidal galaxy, is a strong candidate for the indirect search of dark matter through the detection of $\gamma$-ray emission that could originate from the pair- annihilation of weakly interacting massive part
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d81ebd6371cbfabf364d5500e5b4a66
http://arxiv.org/abs/1705.00426
http://arxiv.org/abs/1705.00426
We investigate the supernova remnant (SNR) 3C 397 and its neighboring pulsar PSR J1906+0722 in high energy gamma rays by using nearly six years of archival data of {\it Large Area Telescope} on board {\it Fermi Gamma Ray Space Telescope} (Fermi-LAT).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1613f140242dd4283b408b38c071ee8b
https://aperta.ulakbim.gov.tr/record/97951
https://aperta.ulakbim.gov.tr/record/97951
Publikováno v:
INSPIRE-HEP
Brown dwarfs (BDs) are celestial objects representing the link between the least massive main-sequence stars and giant gas planets. In the first part of this article, we perform a model-independent search of a gamma-ray signal from the direction of n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc203474f657e94cae286e2740632fc9
http://inspirehep.net/record/2182430
http://inspirehep.net/record/2182430