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The effect of recent Venus transit on Earths atmosphere
Venus transit effects on atmospheric electric parameters
2015/9/8
Some experiments on June 8, 2004, the day of transit of Venus across the Sun, were undertaken at Kolkata (latitude:
22°34lN) to observe the effect, if any, of transit of Venus on FWF, ELF and VLF amp...
The Effect of Recent Venus Transit on Earths Atmosphere
Venus transiteffects on atmospheric electric parameters
2015/9/7
Some experiments on June 8, 2004, the day of transit of Venus across the Sun, were undertaken at Kolkata (latitude: 23034? N) to observe effect, if any, of transit of Venus on FWF, ELF and VLF amplitu...
Using Kepler transit observations to measure stellar spot belt migration rates
Activity Spots Planetary Systems Planet Satellites Sunspots
2012/2/23
Planetary transits provide a unique opportunity to investigate the surface distributions of star spots. Our aim is to determine if, with continuous observation (such as the data that will be provided ...
Venus transit 2004: Illustrating the capability of exoplanet transmission spectroscopy
Planets and satellites: atmospheres – Planets and satellites: composition – Planets and satellites: detection – Radiative transfer – Techniques: spectroscopic
2011/10/11
The transit of Venus in 2004 offered the rare possibility to remotely sense a well-known planetary atmosphere using ground-based observations for absorption spectroscopy. Transmission spectra of Venus...
On the Detection of (Habitable) Super-Earths Around Low-Mass Stars Using Kepler and Transit Timing Variation Method
Planetary Systems
2011/10/9
We present the results of an extensive study of the detectability of Earth-sized planets and super-Earths in the habitable zones of cool and low-mass stars using transit timing variation method. We ha...
Potential Biases in the Detection of Planetary Systems with Large Transit Timing Variations
methods: data analysis – planetary systems – planets and satellites: detection –techniques: photometric
2011/9/29
The Transit Timing Variations (TTVs) technique provides a powerful tool to detect additional planets in transiting exoplanetary systems. In this paper we show how transiting planets with significant T...
Residual circulation trajectories and transit times into the extratropical lowermost stratosphere
the extratropical lowermost stratosphere residual circulation trajectories
2011/2/24
Transport into the extratropical lowermost stratosphere (LMS) can be divided into a slow part (time-scale of several months to years) associated with the global-scale stratospheric residual circulatio...
Dating of streamwater using tritium in a post nuclear bomb pulse world: continuous variation of mean transit time with streamflow
tritium nuclear bomb pulse world
2010/12/22
Tritium measurements of streamwater draining the Toenepi catchment, a small dairy farming area in Waikato, New Zealand, have shown that the mean transit time of the water varies with the flow rate of ...
Precise Estimates of the Physical Parameters for the Exoplanet System HD-17156 Enabled by HST FGS Transit and Asteroseismic Observations
stars planetary systems — stars oscillations — stars
2010/11/9
We present observations of three distinct transits of HD 17156b obtained with the Fine Guidance Sensors (FGS) on board the Hubble Space Telescope (HST)5.
Transiting planet discoveries have largely been restricted to the short-period or low-periastron distance regimes due to the bias inherent in the geometric transit probability. Through the refine-ment...
System parameters, transit times and secondary eclipse constraints of the exoplanet systems HAT-P-4, TrES-2, TrES-3 and WASP-3 from the NASA EPOXI Mission of Opportunity
planetary systems — eclipses — stars individual (HAT-P-4
2010/11/12
As part of the NASA EPOXI Mission of Opportunity, we observed seven known transiting extrasolar planet systems in order to construct time series photometry of extremely high phase coverage and precisi...
System Geometries and Transit / Eclipse Probabilities
System Geometries Transit / Eclipse Probabilities
2010/11/11
Transiting exoplanets provide access to data to study the mass-radius relation and internal structure of extrasolar plan-ets. Long-period transiting planets allow insight into planetary
environments ...
Quantifying the challenges of detecting unseen planetary companions with transit timing variations
celestial mechanics methods n-body simulations statistical stars planetary systems
2010/11/11
Both ground and space-based transit observatories are poised to signi cantly increase the number of known transiting planets and the number of precisely measured transit times.
Photometric follow-ups of transiting exoplanets (TEPs) may lead to discoveries of additional, less massive bodies in extrasolar systems. This is possible by detecting and then analysing variations in ...
Transit timing variations in eccentric hierarchical triple exoplanetary systems. I. Perturbations on the time-scale of the orbital period of the perturber
Earth and Planetary Astrophysics (astro-ph.EP) Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/24
We study the long-term time-scale (i.e. period comaprable to the orbital period of the outer perturber object) transit timing variations in transiting exoplanetary systems which contain a further, mor...