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51 papers · 1 filter
The Kepler-454 System: A Small, Not-rocky Inner Planet, a Jovian World, and a Distant Companion
Sara Gettel, David Charbonneau, Courtney D. Dressing +47
Kepler-454 (KOI-273) is a relatively bright (V = 11.69 mag), Sun-like starthat hosts a transiting planet candidate in a 10.6 d orbit. From spectroscopy, we estimate the stellar tem…
The Gaia-ESO Survey: Stellar radii in the young open clusters NGC 2264, NGC 2547 and NGC 2516
R. J. Jackson, R. D. Jeffries, S. Randich +10
Rapidly rotating, low-mass members of eclipsing binary systems have measured radii significantly larger than predicted by standard models. It has been proposed that magnetic activi…
Detection of an atmosphere around the super-Earth 55 Cancri e
A. Tsiaras, M. Rocchetto, I. P. Waldmann +8
We report the analysis of two new spectroscopic observations of the super-Earth 55 Cancri e, in the near infrared, obtained with the WFC3 camera onboard the HST. 55 Cancri e orbits…
A new approach to analysing HST spatial scans: the transmission spectrum of HD 209458 b
A. Tsiaras, I. P. Waldmann, M. Rocchetto +4
The Wide Field Camera 3 (WFC3) on Hubble Space Telescope (HST) is currently one of the most widely used instruments for observing exoplanetary atmospheres, especially with the use…
Time-resolved emission from bright hot pixels of an active region observed in the EUV band with SDO/AIA and multi-stranded loop modeling
E. Tajfirouze, F. Reale, A. Petralia +1
Evidence for small amounts of very hot plasma has been found in active regions and might be the indication of an impulsive heating, released at spatial scales smaller than the cros…
An X-ray characterization of the central region of the SNR G332.5-5.6
Alejandra E. Suárez, Jorge A. Combi, Juan F. Albacete-Colombo +3
We present an X-ray analysis of the central region of supernova remnant (SNR) G332.5-5.6 through an exhaustive analysis of XMM-Netwon observations with complementary infrared obser…