Search Results - "Coley, Joel"
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1
Investigating the Superorbital Modulations in 4U 1909 + 07, IGR J16418-4532, and IGR J16479-4514 with Swift XRT, BAT, and NuSTAR Observations
Published in The Astrophysical journal (01-05-2023)“…A puzzling variety of superorbital modulations has been discovered in several supergiant high mass X-ray binaries (sgHMXBs). To investigate the mechanisms…”
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Journal Article -
2
Constraining the Evolution of the Unstable Accretion Disk in SMC X-1 with NICER
Published in The Astrophysical journal (01-08-2023)“…Neutron star high-mass X-ray binaries with superorbital modulations in luminosity host warped inner accretion disks that occult the neutron star during…”
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Journal Article -
3
Reflection and Timing Study of the Transient Black Hole X-Ray Binary MAXI J1803-298 with NuSTAR
Published in The Astrophysical journal (01-06-2023)“…The transient black hole X-ray binary MAXI J1803−298 was discovered on 2021 May 1, as it went into outburst from a quiescent state. As the source rose in flux…”
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4
Superorbital Modulation in the High-mass X-Ray Binary 4U 1538-52 and Possible Modulation in IGR J16393-4643
Published in The Astrophysical journal (01-01-2021)“…Hard X-ray observations with the Neil Gehrels Swift Observatory Burst Alert Telescope (BAT) reveal superorbital modulation in the wind-accreting supergiant…”
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5
The Orbital Parameters of the Eclipsing High-mass X-Ray Binary Pulsar IGR J16493-4348 from Pulsar Timing
Published in The Astrophysical journal (01-03-2019)“…IGR J16493-4348 is an eclipsing supergiant high-mass X-ray binary (sgHMXB), where accretion onto the compact object occurs via the radially outflowing stellar…”
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6
Sharp Periodic Flares and Long-term Variability in the High-mass X-Ray Binary XTE J1829−098 from RXTE PCA, Swift BAT, and MAXI Observations
Published in The Astrophysical journal (01-11-2024)“…XTE J1829−098 is a transient X-ray pulsar with a period of ∼7.8 s. It is a candidate Be star system, although the evidence for this is not yet definitive. We…”
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Diverse Long-term Variability of Five Candidate High-mass X-Ray Binaries from Swift Burst Alert Telescope Observations
Published in The Astrophysical journal (10-09-2017)“…We present an investigation of long-term modulation in the X-ray light curves of five little-studied candidate high-mass X-ray binaries using the Swift Burst…”
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8
Probing spectral and timing properties of the X-ray pulsar RX J0440.9 + 4431 in the giant outburst of 2022–2023
Published in Monthly notices of the Royal Astronomical Society (01-11-2023)“…ABSTRACT The X-ray pulsar RX J0440.9 + 4431 went through a giant outburst in 2022 and reached a record-high flux of 2.3 Crab, as observed by Swift/BAT. We…”
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9
A Study of the 20 day Superorbital Modulation in the High-mass X-Ray Binary IGR J16493-4348
Published in The Astrophysical journal (01-07-2019)“…We report on Nuclear Spectroscopic Telescope Array (NuSTAR), Neil Gehrels Swift Observatory (Swift) X-ray Telescope (XRT), and Swift Burst Alert Telescope…”
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10
The X-Ray Pulsar XTE J1858+034 Observed with NuSTAR and Fermi/GBM: Spectral and Timing Characterization plus a Cyclotron Line
Published in The Astrophysical journal (01-03-2021)“…Accreting X-ray pulsars (XRPs) undergo luminous X-ray outbursts during which the spectral and timing behavior of the neutron star can be studied in detail. We…”
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11
Accreting on the Edge: A Luminosity-dependent Cyclotron Line in the Be/X-Ray Binary 2S 1553-542 Accompanied by Accretion Regimes Transition
Published in The Astrophysical journal (01-03-2022)“…Accreting X-ray pulsars (XRPs) undergo luminous X-ray outbursts during which the luminosity-dependent spectral and timing features of the neutron star’s…”
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12
PROBING THE MASSES AND RADII OF DONOR STARS IN ECLIPSING X-RAY BINARIES WITH THE SWIFT BURST ALERT TELESCOPE
Published in The Astrophysical journal (01-08-2015)“…ABSTRACT Physical parameters of both the mass donor and compact object can be constrained in X-ray binaries with well-defined eclipses, as our survey of…”
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13
PROBING THE MYSTERIES OF THE X-RAY BINARY 4U 1210-64 WITH ASM, PCA, MAXI, BAT, AND SUZAKU
Published in The Astrophysical journal (01-10-2014)“…4U 1210-64 has been postulated to be a high-mass X-ray binary powered by the Be mechanism. X-ray observations with Suzaku, the ISS Monitor of All-sky X-ray…”
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Journal Article -
14
Stress due to electric charge density distribution in a dielectric slab
Published in Journal of electrostatics (01-12-2024)“…The spatial distribution of electric field due to an imposed electric charge density profile in an infinite slab of dielectric material is derived analytically…”
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15
The high energy X-ray probe (HEX-P): science overview
Published in Frontiers in astronomy and space sciences (25-11-2024)“…To answer NASA’s call for a sensitive X-ray observatory in the 2030s, we present the High Energy X-ray Probe (HEX-P) mission concept. HEX-P is designed to…”
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16
Probing the Structure and Morphology of X-ray and Gamma-ray Binaries Using a Multi-Wavelength, Multi-Mission Approach
Published 01-01-2015“…This thesis focuses on High-Mass X-ray Binaries (HMXBs) and their gamma-ray precursors, consisting of a compact object and an optical companion. Matter lost…”
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Dissertation -
17
Constraining the evolution of the unstable accretion disk in SMC X-1 with NICER
Published 03-08-2023“…Neutron star high mass X-ray binaries with superorbital modulations in luminosity host warped inner accretion disks that occult the neutron star during…”
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Journal Article -
18
Investigating the superorbital modulations in 4U 1909+07, IGR J16418-4532 and IGR J16479-4514 with Swift XRT, BAT and NuSTAR observations
Published 14-02-2023“…A puzzling variety of superorbital modulations have been discovered in several supergiant High-Mass X-ray binaries (sgHMXBs). To investigate the mechanisms…”
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Journal Article -
19
4U 1210-64: a new member of the rare intermediate-mass X-ray binary subclass
Published 31-10-2023“…4U 1210-64 is a peculiar X-ray binary that was first discovered in 1978 by the Uhuru satellite. The analysis of the X-ray data revealed a 6.7-day orbital…”
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Journal Article -
20
Multiwavelength study of 1eRASS J085039.9-421151 with eROSITA NuSTAR and X-shooter
Published 04-11-2024“…The eROSITA instrument on board Spectrum-Roentgen-Gamma has completed four scans of the X-ray sky, leading to the detection of almost one million X-ray sources…”
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