SIMBAD references

2022AJ....164..254G - Astron. J., 164, 254 (2022/December-0)

Detection of p-mode Oscillations in HD 35833 with NEID and TESS.

GUPTA A.F., LUHN J., WRIGHT J.T., MAHADEVAN S., FORD E.B., STEFANSSON G., BENDER C.F., BLAKE C.H., HALVERSON S., HEARTY F., KANODIA S., LOGSDON S.E., McELWAIN M.W., NINAN J.P., ROBERTSON P., ROY A., SCHWAB C. and TERRIEN R.C.

Abstract (from CDS):

We report the results of observations of p-mode oscillations in the G0 subgiant star HD 35833 in both radial velocities and photometry with NEID and TESS, respectively. We achieve separate, robust detections of the oscillation signal with both instruments (radial velocity amplitude ARV = 1.11 ± 0.09 m s–1, photometric amplitude Aphot = 6.42 ± 0.60 ppm, frequency of maximum power ${\nu }_{\max }=595.71\pm 17.28$μHz, and mode spacing Δν = 36.65 ± 0.96 μHz) as well as a nondetection in a TESS sector concurrent with the NEID observations. These data shed light on our ability to mitigate the correlated noise impact of oscillations with radial velocities alone and on the robustness of commonly used asteroseismic scaling relations. The NEID data are used to validate models for the attenuation of oscillation signals for exposure times $t\lt {\nu }_{\max }^{-1}$, and we compare our results to predictions from theoretical scaling relations and find that the observed amplitudes are weaker than expected by >4σ, hinting at gaps in the underlying physical models.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Asteroseismology - Exoplanet detection methods - Radial velocity - Stellar astronomy - Stellar oscillations

VizieR on-line data: <Available at CDS (J/AJ/164/254): fig1.dat fig7.dat>

Simbad objects: 3

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