Search Results - "ONG, J."

Refine Results
  1. 1

    Mode Mixing and Rotational Splittings. II. Reconciling Different Approaches to Mode Coupling by Ong, J. M. Joel, Gehan, Charlotte

    Published in The Astrophysical journal (01-04-2023)
    “…In the mixed-mode asteroseismology of subgiants and red giants, the coupling between the p- and g- mode cavities must be understood well in order to derive…”
    Get full text
    Journal Article
  2. 2

    Dependence of X-Ray Burst Models on Nuclear Masses by Schatz, H., Ong, W.-J.

    Published in The Astrophysical journal (01-08-2017)
    “…X-ray burst model predictions of light curves and the final composition of the nuclear ashes are affected by uncertain nuclear masses. However, not all of…”
    Get full text
    Journal Article
  3. 3

    Semianalytic Expressions for the Isolation and Coupling of Mixed Modes by Ong, J. M. Joel, Basu, Sarbani

    Published in The Astrophysical journal (01-08-2020)
    “…In the oscillation spectra of giant stars, nonradial modes may be seen to undergo avoided crossings, which produce a characteristic "mode bumping" of the…”
    Get full text
    Journal Article
  4. 4

    Red Giant Rotational Inversion Kernels Need Nonlinear Surface Corrections by Ong, J. M. Joel

    Published in The Astrophysical journal (01-01-2024)
    “…Asteroseismology is our only means of measuring the rotations of stars in their interiors, rather than at their surfaces. Some techniques for measurements of…”
    Get full text
    Journal Article
  5. 5

    Fossil Signatures of Main-sequence Convective Core Overshoot Estimated through Asteroseismic Analyses by Lindsay, Christopher J., Ong, J. M. Joel, Basu, Sarbani

    Published in The Astrophysical journal (01-04-2024)
    “…Some physical processes that occur during a star's main-sequence evolution also affect its post-main-sequence evolution. It is well known that stars with…”
    Get full text
    Journal Article
  6. 6

    Mixed Modes and Asteroseismic Surface Effects. I. Analytic Treatment by Joel Ong, J. M., Basu, Sarbani, Roxburgh, Ian W.

    Published in The Astrophysical journal (01-10-2021)
    “…Normal-mode oscillation frequencies computed from stellar models differ from those that would be measured from stars with identical interior structures because…”
    Get full text
    Journal Article
  7. 7

    Mode Mixing and Rotational Splittings. I. Near-degeneracy Effects Revisited by Ong, J. M. Joel, Bugnet, Lisa, Basu, Sarbani

    Published in The Astrophysical journal (01-11-2022)
    “…Rotation is typically assumed to induce strictly symmetric rotational splitting into the rotational multiplets of pure p - and g -modes. However, for evolved…”
    Get full text
    Journal Article
  8. 8

    Near-core Acoustic Glitches Are Not Oscillatory: Consequences for Asteroseismic Probes of Convective Boundary Mixing by Lindsay, Christopher J., Ong, J. M. Joel, Basu, Sarbani

    Published in The Astrophysical journal (01-06-2023)
    “…Asteroseismology has been used extensively in recent years to study the interior structure and physical processes of main-sequence stars. We consider prospects…”
    Get full text
    Journal Article
  9. 9

    Evolutionary and Observational Properties of Red Giant Acoustic Glitch Signatures by Saunders, David P., Ong, J. M. Joel, Basu, Sarbani

    Published in The Astrophysical journal (01-04-2023)
    “…While solar-like oscillations in red giants have been observed at massive scales by the Kepler mission, few features of these oscillation mode frequencies,…”
    Get full text
    Journal Article
  10. 10

    Asteroseismic g-mode period spacings in strongly magnetic rotating stars by Rui, Nicholas Z, Ong, J M Joel, Mathis, Stéphane

    “…ABSTRACT Strong magnetic fields are expected to significantly modify the pulsation frequencies of waves propagating in the cores of red giants or in the…”
    Get full text
    Journal Article
  11. 11

    Mixed Modes and Asteroseismic Surface Effects. II. Subgiant Systematics by Ong, J. M. Joel, Basu, Sarbani, Lund, Mikkel N., Bieryla, Allyson, Viani, Lucas S., Latham, David W.

    Published in The Astrophysical journal (01-11-2021)
    “…Models of solar-like oscillators yield acoustic modes at different frequencies than would be seen in actual stars possessing identical interior structure, due…”
    Get full text
    Journal Article
  12. 12

    Investigating the Metallicity-Mixing-length Relation by Viani, Lucas S., Basu, Sarbani, J. M., Joel Ong, Bonaca, Ana, Chaplin, William J.

    Published in The Astrophysical journal (01-05-2018)
    “…Stellar models typically use the mixing-length approximation as a way to implement convection in a simplified manner. While conventionally the value of the…”
    Get full text
    Journal Article
  13. 13

    Fractional Flow Reserve–Guided Multivessel Angioplasty in Myocardial Infarction by Smits, Pieter C, Abdel-Wahab, Mohamed, Neumann, Franz-Josef, Boxma-de Klerk, Bianca M, Lunde, Ketil, Schotborgh, Carl E, Piroth, Zsolt, Horak, David, Wlodarczak, Adrian, Ong, Paul J, Hambrecht, Rainer, Angerås, Oskar, Richardt, Gert, Omerovic, Elmir

    Published in The New England journal of medicine (30-03-2017)
    “…In patients with multivessel disease and STEMI undergoing primary PCI, fractional flow reserve–guided complete revascularization of non–infarct-related…”
    Get full text
    Journal Article
  14. 14

    Updates in Management of Large Hemispheric Infarct by Ong, Charlene J, Chatzidakis, Stefanos, Ong, Jimmy J, Feske, Steven

    Published in Seminars in neurology (01-06-2024)
    “…This review delves into updates in management of large hemispheric infarction (LHI), a condition affecting up to 10% of patients with supratentorial strokes…”
    Get more information
    Journal Article
  15. 15

    Quantitative Pupillometry: Not a Clear Predictor of Delayed Cerebral Ischemia After Subarachnoid Hemorrhage by Ong, Charlene J.

    Published in Neurocritical care (01-08-2023)
    “…[...]like many observed phenomena, accurate identification of nuanced pupillary abnormalities requires highly trained assessors, which can limit the…”
    Get full text
    Journal Article
  16. 16

    Coupled Single-Cell CRISPR Screening and Epigenomic Profiling Reveals Causal Gene Regulatory Networks by Rubin, Adam J., Parker, Kevin R., Satpathy, Ansuman T., Qi, Yanyan, Wu, Beijing, Ong, Alvin J., Mumbach, Maxwell R., Ji, Andrew L., Kim, Daniel S., Cho, Seung Woo, Zarnegar, Brian J., Greenleaf, William J., Chang, Howard Y., Khavari, Paul A.

    Published in Cell (10-01-2019)
    “…Here, we present Perturb-ATAC, a method that combines multiplexed CRISPR interference or knockout with genome-wide chromatin accessibility profiling in single…”
    Get full text
    Journal Article
  17. 17
  18. 18

    Explaining Deviations from the Scaling Relationship of the Large Frequency Separation by Ong, J. M. Joel, Basu, Sarbani

    Published in The Astrophysical journal (01-01-2019)
    “…Asteroseismic large frequency separations possess great diagnostic value. However, their expressions as scaling relations are predicated on homology arguments…”
    Get full text
    Journal Article
  19. 19

    Differential Modeling Systematics across the HR Diagram from Asteroseismic Surface Corrections by Ong, J. M. Joel, Basu, Sarbani, McKeever, Jean M.

    Published in The Astrophysical journal (01-01-2021)
    “…Localized modeling error in the near-surface layers of evolutionary stellar models causes the frequencies of their normal modes of oscillation to differ from…”
    Get full text
    Journal Article
  20. 20