Zobrazeno 1 - 10
of 6 890
pro vyhledávání: '"ORBITAL DECAY"'
Autor:
Alvarado III, Efrain, Bostow, Kate B., Patra, Kishore C., Jacobus, Cooper H., Baer-Way, Raphael A., Jennings, Connor F., Pichay, Neil R., deGraw, Asia A., Vidal, Edgar P., Chander, Vidhi, Altunin, Ivan A., Brendel, Victoria M., Ehrich, Kingsley E., Sunseri, James D., May, Michael B., Punjabi, Druv H., Gendreau-Distler, Eli A., Risin, Sophia, Brink, Thomas G., Zheng, WeiKang, Filippenko, Alexei V.
We study transits of several ``hot Jupiter'' systems - including WASP-12 b, WASP-43 b, WASP-103 b, HAT-P-23 b, KELT-16 b, WD 1856+534 b, and WTS-2 b - with the goal of detecting tidal orbital decay and extending the baselines of transit times. We fin
Externí odkaz:
http://arxiv.org/abs/2409.04660
Autor:
Chen, Wen-Cong
Recently, the first pulsating ultraluminous X-ray source M82 X-2 was reported to be experiencing a rapid orbital decay at a rate of $\dot{P}=-(5.69\pm0.24)\times 10^{-8}~\rm s\,s^{-1}$ based on seven years \emph{NuSTAR} data. To account for the obser
Externí odkaz:
http://arxiv.org/abs/2407.16114
Publikováno v:
A&A 690, A119 (2024)
Dynamical friction works very differently for Newtonian gravity with dark matter and in modified Newtonian dynamics (MOND). While the absence of dark matter considerably reduces the friction in major galaxy mergers, analytic calculations indicate the
Externí odkaz:
http://arxiv.org/abs/2407.11139
Autor:
Adams, Elisabeth R., Jackson, Brian, Sickafoose, Amanda A., Morgenthaler, Jeffrey P., Worters, Hannah, Stubbers, Hailey, Carlson, Dallon, Bhure, Sakhee, Dekeyser, Stijn, Huang, Chelsea, Weinberg, Nevin N.
Ultra-hot Jupiters are likely doomed by tidal forces to undergo orbital decay and eventual disruption by their stars, but the timescale over which this process unfolds is unknown. We present results from a long-term project to monitor ultra-hot Jupit
Externí odkaz:
http://arxiv.org/abs/2404.07339
Autor:
Leonardi, P., Nascimbeni, V., Granata, V., Malavolta, L., Borsato, L., Biazzo, K., Lanza, A. F., Desidera, S., Piotto, G., Nardiello, D., Damasso, M., Cunial, A., Bedin, L. R.
Publikováno v:
A&A 686, A84 (2024)
The discovery of the first transiting hot Jupiters (HJs; giant planets on orbital periods shorter than $P\sim10$ days) was announced more than twenty years ago. As both ground- and space-based follow-up observations are piling up, we are approaching
Externí odkaz:
http://arxiv.org/abs/2402.12120
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 527, Issue 3, January 2024, Pages 5131-5139
The gas giant Kepler-1658b has been inferred to be spiralling into its sub-giant F-type host star Kepler-1658a (KOI-4). The measured rate of change of its orbital period is $\dot{P}_{\rm orb}=-131^{+20}_{-22}\mathrm{ms/yr}$, which can be explained by
Externí odkaz:
http://arxiv.org/abs/2311.08801
Akademický článek
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Autor:
Allen Steele
Winner of the Locus Award: Space-station workers discover a shocking global surveillance plot in this novel from “the master of science-fiction intrigue” (The Washington Post). Popeye Hooker knows that space isn't all it's cracked up to be. A for
We study tidal dissipation in hot Jupiter host stars due to the nonlinear damping of tidally driven $g$-modes, extending the calculations of Essick & Weinberg (2016) to a wide variety of non-solar type hosts. This process causes the planet's orbit to
Externí odkaz:
http://arxiv.org/abs/2305.11974