Results 21 to 30 of about 3,151 (126)
Eclipse, transit and occultation geometry of planetary systems at exo-syzygy [PDF]
, 2017 Although conjunctions and oppositions frequently occur in planetary systems, eclipserelated phenomena are usually described from an Earth-centric perspective.
Breedt, Elmé, Veras, Dimitri
core +2 more sources
Photochemical Control of Perovskite Crystal Formation at Room Temperature
Advanced Science, EarlyView.The authors demonstrate how ultraviolet (UV) light can enable the crystallization of two‐dimensional (2D) perovskite crystals that are otherwise difficult to grow using conventional thermal methods. These findings are supplemented with a detailed mechanistic description for the interaction of the UV irradiation with the perovskite precursor components.
Magdalena Breitwieser +14 more
wiley +1 more source
How to build Tatooine: reducing secular excitation in Kepler circumbinary planet formation
, 2012 Circumbinary planetary systems recently discovered by Kepler represent an important testbed for planet formation theories. Planetesimal growth in disks around binaries has been expected to be inhibited interior to ~10 AU by secular excitation of high ...
Rafikov, Roman R.
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Time variation of Kepler transits induced by stellar rotating spots - a way to distinguish between prograde and retrograde motion I. Theory [PDF]
, 2015 Some transiting planets discovered by the Kepler mission display transit timing variations (TTVs) induced by stellar spots that rotate on the visible hemisphere of their parent stars.
Holczer, Tomer +2 more
core +2 more sources
Astronomische Nachrichten, EarlyView.ABSTRACT We present new radial velocity measurements of 13 selected intermediate mass stars (2–6 M⊙). The measurements were performed between 29 April and 6 September 2024 at the University Observatory Jena using the échelle spectrograph FLECHAS. The radial velocity of eight stars was found to be constant during our spectroscopic monitoring, namely: 17
J. Bätz +7 more
wiley +1 more source
Planet Packing in Circumbinary Systems
, 2013 The recent discovery of planets orbiting main sequence binaries will provide crucial constraints for theories of binary and planet formation. The formation pathway for these planets is complicated by uncertainties in the formation mechanism of the host ...
Kratter, Kaitlin M., Shannon, Andrew
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Astronomische Nachrichten, EarlyView.ABSTRACT Isochrones, equal‐age curves, are widely used in astrophysics to estimate stellar ages. Classical stellar parameters are, however, very limited in their usability for main sequence stars because of their weak age‐dependence. Here, rotation period measurements provide complementary information.
David Gruner, Sydney A. Barnes
wiley +1 more source
Limits to the presence of transiting circumbinary planets in CoRoT data [PDF]
, 2016 The CoRoT mission during its flight-phase 2007-2012 delivered the light-curves for over 2000 eclipsing binaries. Data from the Kepler mission have proven the existence of several transiting circumbinary planets.
Almenara, J. M. +4 more
core +2 more sources
Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.Abstract Revision surgery after anterior cruciate ligament reconstruction (ACL‐R) is hypothesized to be the result of an interplay between factors associated with the anatomy, physiological characteristics and environment of the patient. The multifactorial nature of revision ACL‐R risk is difficult to quantify, and evidence regarding the independent ...
Bálint Zsidai +10 more
wiley +1 more source
On the Abundance of Circumbinary Planets
, 2014 We present here the first observationally based determination of the rate of occurrence of circumbinary planets. This is derived from the publicly available Kepler data, using an automated search algorithm and debiasing process to produce occurrence ...
Armstrong, D. J. +7 more
core +1 more source