We announce the discovery of the second transiting hot Jupiter discovered by the Trans-atlantic Exoplanet Survey. The planet, which we dub TrES-2, orbits the nearby star GSC 03549-02811 every 2.47063 days. From high-resolution spectra, we determine that the star has Teff=5960+/-100 K and logg=4.4+/-0.2, implying a spectral type of G0 V and a mass
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TrES-2: The First Transiting Planet in the Kepler FieldO'Donovan, Francis T. et al.112006
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TrES-5: A Massive Jupiter-sized Planet Transiting a Cool G Dwarf
We report the discovery of TrES-5, a massive hot Jupiter that transits the star GSC 03949-00967 every 1.48 days. From spectroscopy of the star we estimate a stellar effective temperature of T eff = 5171 ± 36 K, and from high-precision B, R, and I photometry of the transit we constrain the ratio of the semimajor axis a and the stellar radius R
Mandushev, Georgi et al.Advertised on:
112011 -
Turbulent eddy-time-correlation in the solar convective zone
Theoretical modeling of the driving processes of solar-like oscillations is a powerful way of understanding the properties of the convective zones of solar-type stars. In this framework, the description of the temporal correlation between turbulent eddies is an essential ingredient to model mode amplitudes. However, there is a debate between a
Belkacem, K. et al.Advertised on:
112010 -
Twisting solar coronal jet launched at the boundary of an active region
Aims: A broad jet was observed in a weak magnetic field area at the edge of active region NOAA 11106 that also produced other nearby recurring and narrow jets. The peculiar shape and magnetic environment of the broad jet raised the question of whether it was created by the same physical processes of previously studied jets with reconnection
Schmieder, B. et al.Advertised on:
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Two magnetic components in sunspot penumbrae
The magnetic and kinematic configuration of sunspot penumbrae is investigated by performing an inversion of the Stokes profiles of three infrared lines at 1565 nm. We use a two-component model atmosphere to describe, at least to first order, the unresolved structure of the penumbra. The observed Stokes profiles are successfully fitted, including
Bellot Rubio, L. R. et al.Advertised on:
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Two-site CCD observations and spectroscopy of HD 207331: A new δ Scuti variable in Cygnus
The results of an observational campaign on the new δ Scuti pulsator HD 207331 are reported. The star was observed photometrically from August 26 to September 2, 2009 from the Observatorio San Pedro Mártir (0.84-m telescope, Mexico) and the Observatorio del Teide (0.80-m telescope, Spain). An overall run of 53.8 h of useful data was collected from
Fox Machado, L. et al.Advertised on:
112010