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We propose that the presence of additional planets in extrasolar planetary systems can be detected by long-term transit timing studies. If a transiting planet is on an eccentric orbit then the presence of another planet causes a secular…

Astrophysics · Physics 2008-11-26 Jeremy S. Heyl , Brett J. Gladman

Recently, a transient localized brightness enhancement has been observed in Jupiter's main auroral emission close to noon by Palmaerts et al. (2014). We use results from three-dimensional global MHD simulations to understand what is causing…

Space Physics · Physics 2018-06-13 E. Chané , B. Palmaerts , A. Radioti

We report on a multi-wavelength observational campaign which followed the Earth's transit on the Sun as seen from Jupiter on 5 Jan the 2014. Simultaneous observations of Jupiter's moons Europa and Ganymede obtained with HARPS from La Silla,…

Earth and Planetary Astrophysics · Physics 2015-09-09 Paolo Molaro , Mauro Barbieri , Lorenzo Monaco , Simone Zaggia , Christophe Lovis

We study propagation effects due to the finite speed of light in ionization of extended systems. We present a general quantitative theory of these effects and show under which conditions such effects should appear. The finite speed of light…

Atomic Physics · Physics 2021-07-14 I. A. Ivanov , Anatoli S. Kheifets , Kyung Taec Kim

We employ the recently developed multi-photon R-matrix method for molecular above-threshold photoionization to obtain second-order ionization amplitudes that govern the interference in RABITT experiments. This allows us to extract RABITT…

Atomic Physics · Physics 2022-05-03 Jakub Benda , Zdeněk Mašín , Jimena D. Gorfinkiel

The time delays of gravitationally lensed quasars are generally believed to be unique numbers whose measurement is limited only by the quality of the light curves and the models for the contaminating contribution of gravitational…

Astrophysics of Galaxies · Physics 2017-10-25 S. S. Tie , C. S. Kochanek

We show that the time-dependent Doppler effect should induce measureable deviations of the time history of the projected orbit of a star around the supermassive black hole in the Galactic center (SgrA*) from the expected Keplerian history.…

Astrophysics · Physics 2007-05-23 Abraham Loeb

One of the open questions of modern cosmology is the nature and properties of the Dark Matter halo and its substructures. In this work we study the gravitational effect of dark matter substructures on pulsar timing observations. Since…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-18 Shant Baghram , Niayesh Afshordi , Kathryn M. Zurek

During November 26-29, 2003 XMM-Newton observed soft (0.2-2 keV) X-ray emission from Jupiter for 69 hours. The low-latitude X-ray disk emission of Jupiter is observed to be almost uniform in intensity with brightness that is consistent with…

A graphical presentation of the timing of avalanche photodiode events in the datasets from the experiment of Weihs et al. [Phys. Rev. Lett. 81, 5039 (1998)] makes manifest the existence of two types of signal delay: (1) The introduction of…

Quantum Physics · Physics 2012-07-25 Peter Morgan

On 14th September 2015, a transient gravitational wave (GW150914) was detected by the two LIGO detectors at Hanford and Livingston from the coalescence of a binary black hole system located at a distance of about 400 Mpc. We point out that…

General Relativity and Quantum Cosmology · Physics 2016-03-25 Emre O. Kahya , Shantanu Desai

We present the first numerical simulation of the time delay in the photoionization of the simplest diatomic molecule H$_2^+$ as observed by attosecond streaking. We show that the strong variation of the Eisenbud-Wigner-Smith time delay as a…

One might expect light to be scattered when it passes through a gravitational wave, and might hope that in favourable circumstances these scatterings could be observed on Earth even if the interaction occurs far away. Damour and…

General Relativity and Quantum Cosmology · Physics 2015-06-12 Adam Helfer

The influences of optical fields on the tunneling time in graphene are investigated in real time using the finite-difference time-domain method. The tunneling time of electrons irradiated by an optical field is significantly different from…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Jiang-Tao Liu , Fu-Hai Su , Hai Wang , Xin-Hua Deng

The delayed hard (up to 25 GeV) photons observed more than an hour following a gamma-ray burst on February 17, 1994 may result from the collisions of relativistic nucleons with a dense cloud, producing $\pi^0$. The required cloud density is…

Astrophysics · Physics 2009-10-22 J. I. Katz

We develop a model of time delays between the continuum bands in the Narrow Line Seyfert 1 galaxy Mrk 335 to explain the observed delays measured in this source. We consider two geometries: an accretion disk with fully ionized warm absorber…

Astrophysics · Physics 2009-11-11 B. Czerny , A. Janiuk

Transits in the planetary system WASP-4 were recently found to occur 80s earlier than expected in observations from the TESS satellite. We present 22 new times of mid-transit that confirm the existence of transit timing variations, and are…

Future surveys for transiting extrasolar planets, including the space-based mission Kepler (Borucki et al 2003), are expected to detect hundreds of Jovian mass planets and tens of terrestrial mass planets. For many of these newly discovered…

Astrophysics · Physics 2011-09-01 Matthew J. Holman , Norman W. Murray

We develop an analytic model for transit timing variations produced by orbital conjunctions between gravitationally interacting planets. If the planetary orbits have tight orbital spacing, which is a common case among the Kepler planets,…

Earth and Planetary Astrophysics · Physics 2015-06-19 David Nesvorny , David Vokrouhlicky

The predicted Lense-Thirring perihelion precession of Mercury induced by the Sun's angular momentum through its general relativistic gravitomagnetic field amounts to 2 milliarcseconds per century. It turned out to be compatible with the…

General Relativity and Quantum Cosmology · Physics 2017-11-28 Lorenzo Iorio
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