Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Rawat, Divya"'
Autor:
Khan, Anasua, Banerjee, Debdatta, Rawat, Divya, Nath, T. K, Soni, Ajay, Chatterjee, Swastika, Taraphder, A.
One of the fundamental interactions that is found in many functional materials is the spin-phonon coupling (SPC), which is at the heart of many novel functionalities. The simultaneous presence of multi-magnetic phases makes SPC even more intriguing.
Externí odkaz:
http://arxiv.org/abs/2407.02407
Charge density wave (CDW) is a periodic modulation of electronic charge leading to a reconstruction of the lattice, an emergence of zone folded mode along with collective excitations.1 Transition metal chalcogenides have shown a great potential to st
Externí odkaz:
http://arxiv.org/abs/2311.02371
The incoming Imaging X-ray Polarimetry Explorer (IXPE) observations of X-ray binaries provide a new tool to investigate the underlying accretion geometry. Here we report the first measurements of X-ray polarization of the extra-galactic black-hole X-
Externí odkaz:
http://arxiv.org/abs/2309.06830
We probe the spectropolarimetric properties of the black-hole binary source 4U 1630$-$47 in the steep power law state. We detect a significant polarization fraction of $\sim$7 % at a polarization angle of $\sim$21 $^\circ$. The $2-12$ keV NICER spect
Externí odkaz:
http://arxiv.org/abs/2307.15347
We investigate spectro-temporal properties for two black hole X-ray binary sources, MAXI J1535$-$571 and H 1743$-$322, during their hard and hard-intermediate states. For MAXI J1535$-$571, we analyze Swift/XRT, NuSTAR and NICER observations, specific
Externí odkaz:
http://arxiv.org/abs/2307.11460
Ultra-thin 2D materials have shown complete paradigm shift of understanding of physical and electronic properties because of confinement effects, symmetry breaking and novel phenomena at nanoscale. Bulk 2H-TaS2 undergoes an incommensurate charge dens
Externí odkaz:
http://arxiv.org/abs/2307.08418
Autor:
Zhang, Zuobin, Liu, Honghui, Rawat, Divya, Bambi, Cosimo, Misra, Ranjeev, Wang, Pengju, Ji, Long, Zhang, Shu, Zhang, Shuangnan
Publikováno v:
Astrophys.J. 971: 148 (2024)
We conduct a spectral and timing analysis of GX 339-4 and EXO 1846-031 with the aim of studying the evolution of Type-C QPOs with spectral parameters. The high cadence data from Insight-HXMT and NICER allow us to track them. Type-C QPOs appear at the
Externí odkaz:
http://arxiv.org/abs/2305.18249
Publikováno v:
ApJL 948 L10 (2023)
We conduct a spectro-polarimetric study of the accreting X-ray pulsar Hercules X-1 using observations with the Imaging X-ray Polarimetry Explorer (IXPE). IXPE monitored the source in three different Epochs, sampling two Main-on and one Short-on state
Externí odkaz:
http://arxiv.org/abs/2304.00889
We detect a high level of polarization in the X-ray emission of the black-hole binary 4U 1630-47 in an observation with the Imaging X-ray Polarimetry Explorer. The 2-8 keV polarization degree is 8 % at a position angle of $18^\circ$, with the polariz
Externí odkaz:
http://arxiv.org/abs/2303.02745
Autor:
Zhang, Yuexin, Méndez, Mariano, García, Federico, Altamirano, Diego, Belloni, Tomaso M., Alabarta, Kevin, Zhang, Liang, Bellavita, Candela, Rawat, Divya, Ma, Ruican
MAXI J1535-571 is a black-hole X-ray binary that in 2017 exhibited a very bright outburst which reached a peak flux of up to 5 Crab in the 2-20 keV band. Given the high flux, several X-ray space observatories obtained unprecedented high signal-to-noi
Externí odkaz:
http://arxiv.org/abs/2302.04007