Search Results - "Hall, Oliver J"
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The Red-giant Branch Bump Revisited: Constraints on Envelope Overshooting in a Wide Range of Masses and Metallicities
Published in The Astrophysical journal (01-06-2018)“…The red-giant branch bump provides valuable information for the investigation of the internal structure of low-mass stars. Because current models are unable to…”
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Journal Article -
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Stellar Cruise Control: Weakened Magnetic Braking Leads to Sustained Rapid Rotation of Old Stars
Published in The Astrophysical journal (01-02-2024)“…Abstract Despite a growing sample of precisely measured stellar rotation periods and ages, the strength of magnetic braking and the degree of departure from…”
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Journal Article -
3
A Study of Ethereum’s Transition from Proof-of-Work to Proof-of-Stake in Preventing Smart Contracts Criminal Activities
Published in Network (Basel) (01-03-2024)“…With the ever-increasing advancement in blockchain technology, security is a significant concern when substantial investments are involved. This paper explores…”
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Journal Article -
4
Inferring the rotation period distribution of stars from their projected rotation velocities and radii: Application to late-F/early-G Kepler stars
Published in Monthly notices of the Royal Astronomical Society (01-03-2022)“…ABSTRACT While stellar rotation periods Prot may be measured from broad-band photometry, the photometric modulation becomes harder to detect for slower…”
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5
Testing asteroseismology with Gaia DR2: hierarchical models of the Red Clump
Published in Monthly notices of the Royal Astronomical Society (01-07-2019)Get full text
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Prospects for Galactic and stellar astrophysics with asteroseismology of giant stars in the TESS continuous viewing zones and beyond
Published in Monthly notices of the Royal Astronomical Society (01-04-2021)“…ABSTRACT The NASA Transiting Exoplanet Survey Satellite (NASA-TESS) mission presents a treasure trove for understanding the stars it observes and the Milky…”
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Chronologically dating the early assembly of the Milky Way
Published in Nature astronomy (01-07-2021)“…The standard cosmological model predicts that galaxies are built through hierarchical assembly on cosmological timescales 1 , 2 . The Milky Way, like other…”
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Journal Article Web Resource -
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Hierarchically modelling Kepler dwarfs and subgiants to improve inference of stellar properties with asteroseismology
Published in Monthly notices of the Royal Astronomical Society (01-08-2021)“…ABSTRACT With recent advances in modelling stars using high-precision asteroseismology, the systematic effects associated with our assumptions of stellar…”
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Weakened magnetic braking supported by asteroseismic rotation rates of Kepler dwarfs
Published in Nature astronomy (01-07-2021)“…Studies using asteroseismic ages and rotation rates from star-spot rotation have indicated that standard age–rotation relations may break down roughly half way…”
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10
A hot saturn orbiting an oscillating late subgiant discovered by tess
Published in The Astrophysical journal (01-06-2019)“…We present the discovery of HD 221416 b, the first transiting planet identified by the Transiting Exoplanet Survey Satellite (TESS) for which asteroseismology…”
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Ensemble Asteroseismology and Hierarchical Bayesian Models : New Inferences of Astrophysics with Oscillating Stars
Published 01-01-2020“…Asteroseismology - the study of stellar oscillations - is one of the key tools used to study stars in modern astronomy. This thesis focuses on asteroseismology…”
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Dissertation -
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Note on Relationships between Attitudes Toward the Scientific Method and the Background of Seminarians
Published in Social forces (01-10-1960)“…First-year students in eleven Chicago seminaries indicated attitudes toward social scientific research in brief essays. Analysis revealed three major…”
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13
Inferring the Rotation Period Distribution of Stars from their Projected Rotation Velocities and Radii: Application to late-F/early-G Kepler Stars
Published 14-12-2021“…While stellar rotation periods $P_\mathrm{rot}$ may be measured from broadband photometry, the photometric modulation becomes harder to detect for slower…”
Get full text
Journal Article -
14
Stellar Cruise Control: Weakened Magnetic Braking Leads to Sustained Rapid Rotation of Old Stars
Published 11-09-2023“…Despite a growing sample of precisely measured stellar rotation periods and ages, the strength of magnetic braking and the degree of departure from standard…”
Get full text
Journal Article -
15
TESS Data for Asteroseismology: Light Curve Systematics Correction
Published 26-08-2021“…Data from the Transiting Exoplanet Survey Satellite (TESS) has produced of order one million light curves at cadences of 120 s and especially 1800 s for every…”
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Journal Article -
16
Hierarchically modelling Kepler dwarfs and subgiants to improve inference of stellar properties with asteroseismology
Published 11-06-2021“…With recent advances in modelling stars using high-precision asteroseismology, the systematic effects associated with our assumptions of stellar helium…”
Get full text
Journal Article -
17
Weakened magnetic braking supported by asteroseismic rotation rates of Kepler dwarfs
Published 26-04-2021“…Studies using asteroseismic ages and rotation rates from star-spot rotation have indicated that standard age-rotation relations may break down roughly half-way…”
Get full text
Journal Article -
18
The Red-Giant Branch Bump Revisited: Constraints on Envelope Overshooting in a Wide Range of Masses and Metallicities
Published 18-04-2018“…The red-giant branch bump provides valuable information for the investigation of the internal structure of low-mass stars. Because current models are unable to…”
Get full text
Journal Article -
19
TESS Data for Asteroseismology: Photometry
Published 15-06-2021“…Over the last two decades, asteroseismology has increasingly proven to be the observational tool of choice for the study of stellar physics, aided by the high…”
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Journal Article -
20
Prospects for Galactic and stellar astrophysics with asteroseismology of giant stars in the $\it{TESS}$ Continuous Viewing Zones and beyond
Published 30-11-2020“…The NASA-$\it{TESS}$ mission presents a treasure trove for understanding the stars it observes and the Milky Way, in which they reside. We present a first look…”
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Journal Article