21 citations · 62 across the 11 of their papers we have counts for
11 papers
Non-thermal emission from the vicinity of the magnetar CXOU J171405.7-381031
Manoel F. Sousa, Rita. C. Anjos
Magnetars are neutron stars with ultra-strong magnetic fields (- G) and are promising candidates for high-energy particle acceleration. We present a multiw…
Multiwavelength study of non-thermal emission in the Swift J1834.9-0846/W41 region
Manoel F. Sousa, Rita C. Dos Anjos, Vitor de Souza
We investigate the origin of non-thermal emission from the Swift J1834-0846/W41 region by modeling its broadband spectral energy distribution from radio to TeV energies within lept…
Double White Dwarf Mergers as Progenitors of Long-Period Transients
Manuel Malheiro, Sarah V. Borges, Jaziel G. Coelho +6
There is an ongoing discussion in the literature on the nature of long-period transients (LPTs), radio-emitting sources with periods ranging from hundreds to tens of thousands of s…
Parameter Estimation Precision with Geocentric Gravitational Wave Interferometers: Monochromatic Signals
Manoel Felipe Sousa, Tabata Aira Ferreira, Massimo Tinto
We present a Fisher information matrix study of the parameter estimation precision achievable by a class of future space-based, "mid-band", gravitational wave (GW) interferometers…
Prospects for gamma-ray emission from magnetar regions in CTAO observations
M. F. Sousa, R. Jr. Costa, Jaziel G. Coelho +1
Recent multi-wavelength observations have highlighted magnetars as significant sources of cosmic rays, particularly through their gamma-ray emissions. This study examines three mag…
Prospects for the Observation of Continuous Gravitational Waves from Deformed Fast-spinning White Dwarfs
M. F. Sousa, E. Otoniel, J. G. Coelho +1
There has been a growing interest within the astrophysics community in highly magnetized and fast-spinning white dwarfs (WDs), commonly referred to as HMWDs. WDs with these charact…
On the optical transients from double white-dwarf mergers
M. F. Sousa, J. G. Coelho, J. C. N. de Araujo +2
Double white-dwarf (DWD) mergers are relevant astrophysical sources expected to produce massive, highly-magnetized WDs, supernovae (SNe) Ia, and neutron stars (NSs). Although they…
The double white dwarf merger progenitors of SDSS J2211+1136 and ZTF J1901+1458
M. F. Sousa, J. G. Coelho, J. C. N. de Araujo +2
Double white dwarf (DWD) mergers are possibly the leading formation channel of massive, rapidly rotating, high-field magnetic white dwarfs (HFMWDs). However, the direct link connec…
Gravitational Wave Emission by Accretion of Matter and Magnetic Deformation in Fast Rotating White Dwarfs
Manoel F. Sousa, José C. N. de Araujo, Jaziel G. Coelho
We discuss some aspects of Sousa et al.(2020a, 2020b) concerning two mechanisms of gravitational wave (GW) emission in fast-spinning white dwarfs (WDs): accretion of matter and mag…
Gravitational waves from fast-spinning white dwarfs
Manoel F. Sousa, Jaziel G. Coelho, José C. N. de Araujo
Two mechanisms of gravitational waves (GWs) emission in fast-spinning white dwarfs (WDs) are investigated: accretion of matter and magnetic deformation. In both cases, the GW emiss…
Gravitational waves from SGRs and AXPs as fast-spinning white dwarfs
Manoel F. Sousa, Jaziel G. Coelho, José C. N. de Araujo
Gravitational waves (GWs) emission due to magnetic deformation mechanism is applied for Soft Gamma Repeaters (SGRs) and Anomalous X-Ray Pulsars(AXPs), described as fast-spinning an…