XMM-Newton and NICER measurement of the Rms spectrum of the millihertz quasi-periodic oscillations in the neutron-star low-mass X-ray binary 4U 1636-53

We used two XMM-Newton and six Neutron Star Interior Composition Explorer (NICER) observations to investigate the fractional rms amplitude of the millihertz quasi-periodic oscillations (mHz QPOs) in the neutron-star low-mass X-ray binary 4U 1636-53. We studied, for the first time, the fractional rms...

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Detalles Bibliográficos
Autores principales: Lyu, Ming, Zhang, Guobao, Mendez, Mariano, Altamirano, D., Mancuso, Giulio Cesare, Xiang, Fu-Yuan, Xiao, Huaping
Formato: Articulo
Lenguaje:Español
Publicado: 2020
Materias:
Ciencias Astronómicas
Low-mass x-ray binary stars
Neutron stars
Astrophysical explosive burning
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125113
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125113
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Astronómicas
Low-mass x-ray binary stars
Neutron stars
Astrophysical explosive burning
spellingShingle Ciencias Astronómicas
Low-mass x-ray binary stars
Neutron stars
Astrophysical explosive burning
Lyu, Ming
Zhang, Guobao
Mendez, Mariano
Altamirano, D.
Mancuso, Giulio Cesare
Xiang, Fu-Yuan
Xiao, Huaping
XMM-Newton and NICER measurement of the Rms spectrum of the millihertz quasi-periodic oscillations in the neutron-star low-mass X-ray binary 4U 1636-53
topic_facet Ciencias Astronómicas
Low-mass x-ray binary stars
Neutron stars
Astrophysical explosive burning
description We used two XMM-Newton and six Neutron Star Interior Composition Explorer (NICER) observations to investigate the fractional rms amplitude of the millihertz quasi-periodic oscillations (mHz QPOs) in the neutron-star low-mass X-ray binary 4U 1636-53. We studied, for the first time, the fractional rms amplitude of the mHz QPOs vs. energy in 4U 1636-53 down to 0.2 keV. We find that, as the energy increases from 0.2 keV to 3 keV, the rms amplitude of the mHz QPOs increases, different from the decreasing trend that has been previously observed above 3 keV. This finding has not yet been predicted by any current theoretical model, however, it provides an important observational feature to speculate whether a newly discovered mHz oscillation originates from the marginally stable nuclear burning process on the neutron star surface.
format Articulo
Articulo
author Lyu, Ming
Zhang, Guobao
Mendez, Mariano
Altamirano, D.
Mancuso, Giulio Cesare
Xiang, Fu-Yuan
Xiao, Huaping
author_facet Lyu, Ming
Zhang, Guobao
Mendez, Mariano
Altamirano, D.
Mancuso, Giulio Cesare
Xiang, Fu-Yuan
Xiao, Huaping
author_sort Lyu, Ming
title XMM-Newton and NICER measurement of the Rms spectrum of the millihertz quasi-periodic oscillations in the neutron-star low-mass X-ray binary 4U 1636-53
title_short XMM-Newton and NICER measurement of the Rms spectrum of the millihertz quasi-periodic oscillations in the neutron-star low-mass X-ray binary 4U 1636-53
title_full XMM-Newton and NICER measurement of the Rms spectrum of the millihertz quasi-periodic oscillations in the neutron-star low-mass X-ray binary 4U 1636-53
title_fullStr XMM-Newton and NICER measurement of the Rms spectrum of the millihertz quasi-periodic oscillations in the neutron-star low-mass X-ray binary 4U 1636-53
title_full_unstemmed XMM-Newton and NICER measurement of the Rms spectrum of the millihertz quasi-periodic oscillations in the neutron-star low-mass X-ray binary 4U 1636-53
title_sort xmm-newton and nicer measurement of the rms spectrum of the millihertz quasi-periodic oscillations in the neutron-star low-mass x-ray binary 4u 1636-53
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/125113
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