A search for p-mode oscillations of Jupiter - Serendipitous observations of nonacoustic thermal wave structure

Deming, Drake; Mumma, M. J.; Espenak, F.; Jennings, D. E.; Kostiuk, T.; Wiedemann, G.; Loewenstein, R. F.; Piscitelli, J. R.

doi:10.1086/167719

Cited by 67 publications

(38 citation statements)

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“…Because of these qualities, planetary waves become a very important subject of study. Among the giant planets, they have also been detected in Jupiter's equatorial temperature field (Magalhaes et al, 1989(Magalhaes et al, , 1990Orton et al, 1991;Deming et al, 1989Deming et al, , 1997, and in Satum's polar visible clouds ("the hexagon") (Godfrey, 1988) and in the mid-latitude temperature field (Achterberg and Flasar, 1996). In this paper we present evidence for the first time of the existence of planetary waves in the jovian subpolar stratosphere as traced by aerosol particulates.…”

Section: Introductionmentioning

confidence: 52%

A system of circumpolar waves in Jupiter's stratosphere

Sánchez‐Lavega¹,

Hueso²,

Acarreta³

1998

Geophysical Research Letters

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Abstract. We report on the optical identification on Hubble Space Telescope (HST) and Voyager 1 archived images, of a circumpolar system of Jovian stratospheric quasi-stationary waves, centered at planetographic latitudes-53%-62 ø, and-67 ø with averaged zonal wavenumbers 23, 11, and 12 respectively. The most conspicuous wave is detected in the 890-nm strong absorption band of methane at -67 ø latitude. Its amplitude changes in a matter of days, stretching and contracting but preserving the number of components in the latitude circle. This wave has been observed during several years and seems to be a persistent, long-term phenomena in Jupiter's atmosphere.

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Section: Introductionmentioning

confidence: 52%

A system of circumpolar waves in Jupiter's stratosphere

Sánchez‐Lavega¹,

Hueso²,

Acarreta³

1998

Geophysical Research Letters

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“…These periods coincide with expansion events [1] and [2] in Section S1. Observations in this period was supplemented by Deming et al [1989Deming et al [ , 1997 between 1987 and 1993 during their search for planetary p-mode oscillations, identifying wavenumbers in the 2-15 range (with peaks at wavenumbers 6-11) and a westward phase speed of 5 m/s [Deming et al, 1997]. Unlike Orton's survey, the waves of Deming et al appeared to cover the whole tropical domain.…”

Section: A2 Supplemental S2: Previous Detections Of Mid-neb Wavesmentioning

confidence: 99%

Jupiter's North Equatorial Belt expansion and thermal wave activity ahead of Juno's arrival

Fletcher

Orton

Sinclair

et al. 2017

Geophysical Research Letters

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The dark colors of Jupiter's North Equatorial Belt (NEB, 7–17°N) appeared to expand northward into the neighboring zone in 2015, consistent with a 3–5 year cycle. Inversions of thermal‐IR imaging from the Very Large Telescope revealed a moderate warming and reduction of aerosol opacity at the cloud tops at 17–20°N, suggesting subsidence and drying in the expanded sector. Two new thermal waves were identified during this period: (i) an upper tropospheric thermal wave (wave number 16–17, amplitude 2.5 K at 170 mbar) in the mid‐NEB that was anticorrelated with haze reflectivity; and (ii) a stratospheric wave (wave number 13–14, amplitude 7.3 K at 5 mbar) at 20–30°N. Both were quasi‐stationary, confined to regions of eastward zonal flow, and are morphologically similar to waves observed during previous expansion events.

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“…There have been several attempts to detect Jovian oscillations using infrared photometry [18], Doppler spectrometry [19][20][21], and careful searches for excitation of acoustic waves due to the impact of the Shoemaker-Levy 9 comet [22,23]. In most of these campaigns, the signal-to-noise (SNR) ratio was too low or instrumental artifacts were present that inhibited any positive detection.…”

Section: Seismology and Giant Planetsmentioning

confidence: 99%

Seismology of Giant Planets: General Overview and Results from theKeplerK2 Observations of Neptune

Gaulme

2017

EPJ Web Conf.

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Abstract. For this invited contribution, I was asked to give an overview about the application of helio and asteroseismic techniques to study the interior of giant planets, and to specifically present the recent observations of Neptune by Kepler K2. Seismology applied to giant planets could drastically change our understanding of their deep interiors, as it has happened with the Earth, the Sun, and many main-sequence and evolved stars. The study of giant planets' composition is important for understanding both the mechanisms enabling their formation and the origins of planetary systems, in particular our own. Unfortunately, its determination is complicated by the fact that their interior is thought not to be homogeneous, so that spectroscopic determinations of atmospheric abundances are probably not representative of the planet as a whole. Instead, the determination of their composition and structure must rely on indirect measurements and interior models. Giant planets are mostly fluid and convective, which makes their seismology much closer to that of solar-like stars than that of terrestrial planets. Hence, helioseismology techniques naturally transfer to giant planets. In addition, two alternative methods can be used: photometry of the solar light reflected by planetary atmospheres, and ring seismology in the specific case of Saturn. The current decade has been promising thanks to the detection of Jupiter's acoustic oscillations with the ground-based imaging-spectrometer SYMPA and indirect detection of Saturn's f -modes in its rings by the NASA Cassini orbiter. This has motivated new projects of ground-based and space-borne instruments that are under development. The K2 observations represented the first opportunity to search for planetary oscillations with visible photometry. Despite the excellent quality of K2 data, the noise level of the power spectrum of the light curve was not low enough to detect Neptune's oscillations. The main results from the K2 observations are the clear detection of the well-known differential rotation of Neptune, measured for the first time through the rotational modulation of its photometry, and the detection of the Sun's oscillations, for the first time in an indirect way in intensity measurements.

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A search for p-mode oscillations of Jupiter - Serendipitous observations of nonacoustic thermal wave structure

Cited by 67 publications

References 0 publications

A system of circumpolar waves in Jupiter's stratosphere

A system of circumpolar waves in Jupiter's stratosphere

Jupiter's North Equatorial Belt expansion and thermal wave activity ahead of Juno's arrival

Seismology of Giant Planets: General Overview and Results from theKeplerK2 Observations of Neptune

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