Search Results - "Nabizadeh, Armin"
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1
X-ray properties of dwarf nova EY Cyg and the companion star using an XMM-Newton observation
Published in Advances in space research (01-09-2020)“…We present the X-ray analysis of dwarf nova EY Cyg using the 45 ks XMM-Newton observatory archival data obtained in quiescence. We find orbital modulations in…”
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Journal Article -
2
To be, or not to be: Balmer breaks in high-z galaxies with JWST
Published in Monthly notices of the Royal Astronomical Society (06-03-2024)“…ABSTRACT Standard models of structure formation allow us to predict the cosmic timescales relevant for the onset of star formation and the assembly history of…”
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Journal Article -
3
Discovery of a retrogradely rotating neutron star in the X-ray pulsar GX 301–2
Published in Monthly notices of the Royal Astronomical Society (2020)“…ABSTRACT We report on the analysis of the spin evolution of a slow X-ray pulsar GX 301–2 along the orbit using long-term monitoring by Fermi/Gamma-ray Burst…”
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4
The detection and characterization of highly magnified stars with JWST: prospects of finding Population III
Published in Monthly notices of the Royal Astronomical Society (01-09-2024)“…ABSTRACT Gravitational lensing may render individual high-mass stars detectable out to cosmological distances, and several extremely magnified stars have in…”
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5
Modeling Selected X-Ray Observations of Nonmagnetic Cataclysmic Variables Using XMM-Newton and Swift Observatories
Published 01-01-2017“…Despite of recent developments in observational techniques, the diversity of the X-ray observations of nonmagnetic Cataclysmic Variables (CVs) are still not…”
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Dissertation -
6
X-ray properties of dwarf nova EY Cyg and the companion star using an XMM-Newton observation
Published 21-01-2020“…We present the X-ray analysis of dwarf nova EY Cyg using the 45 ks \textit{XMM-Newton} observatory archival data obtained in quiescence. We find orbital…”
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Journal Article -
7
Explanations for the two-component spectral energy distributions of gravitationally lensed stars at high redshifts
Published 18-06-2024“…Observations of gravitationally lensed, high-mass stars at redshifts $\gtrsim1$ occasionally reveal spectral energy distributions that contain two components…”
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Journal Article -
8
To be, or not to be: Balmer breaks in high-z galaxies with JWST
Published 05-09-2023“…Standard models of structure formation allow us to predict the cosmic timescales relevant for the onset of star formation and the assembly history of galaxies…”
Get full text
Journal Article -
9
The detection and characterization of highly magnified stars with JWST: Prospects of finding Population III
Published 14-12-2023“…Gravitational lensing may render individual high-mass stars detectable out to cosmological distances, and several extremely magnified stars have in recent…”
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Journal Article -
10
Broad-band analysis of X-ray pulsar 2S 1845$-$024
Published 13-10-2021“…We present results of detailed investigation of the poorly studied X-ray pulsar 2S 1845$-$024 based on the data obtained with $NuSTAR$ observatory during the…”
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Journal Article -
11
Discovery of a retrogradely rotating neutron star in the X-ray pulsar GX 301$-$2
Published 31-03-2020“…We report on the analysis of the spin evolution of a slow X-ray pulsar GX 301$-$2 along the orbit using long-term monitoring by Fermi/GBM. Based on the…”
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Journal Article -
12
NuSTAR observations of the wind-fed X-ray pulsar GX 301--2 during an unusual spin-up event
Published 30-07-2019“…A&A 629, A101 (2019) We report on \textit{NuSTAR} observations of the well-known wind-accreting X-ray pulsar \source\ during a strong spin-up episode that took…”
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13
JWST Discovery of $40+$ Microlensed Stars in a Magnified Galaxy, the "Dragon" behind Abell 370
Published 11-04-2024“…Strong gravitational magnification by massive galaxy clusters enable us to detect faint background sources, resolve their detailed internal structures, and in…”
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14
Spectral evolution of X-ray pulsar 4U 1901+03 during the 2019 outburst based on Insight-HXMT and NuSTAR observations
Published 09-06-2021“…A&A 652, A89 (2021) We report on a detailed spectral analysis of emission from X-ray pulsar 4U 1901+03 using data obtained by the Insight-HXMT and NuSTAR…”
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15
Properties of the transient X-ray pulsar Swift J1816.7--1613 and its optical companion
Published 13-01-2019“…A&A 622, A198 (2019) We present results of investigation of the poorly studied X-ray pulsar Swift J1816.7--1613 during its transition from the type I outburst…”
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Journal Article -
16
A search for high-redshift direct-collapse black hole candidates in the PEARLS north ecliptic pole field
Published 14-08-2023“…Direct-collapse black holes (DCBHs) of mass $\sim 10^4$-$10^5 {M}_\odot$ that form in HI-cooling halos in the early Universe are promising progenitors of the…”
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Journal Article