Results 31 to 40 of about 268,528 (172)

A posteriori detection of the planetary transit of HD 189733 b in the Hipparcos photometry [PDF]

open access: bronzeAstronomy & Astrophysics, 2005
7 pages, to be published in Astronomy & ...
Hébrard, G., Lecavelier Des Etangs, A.
openaire   +4 more sources

Relative photometry of transiting exoplanet CoRoT-Exo-2b

open access: green, 2009
Relative CCD photometry of the extrasolar planet COROT-Exo-2b transiting in front of its parent star was carried out at the Astronomical and Geophysical Observatory of Comenius University at Modra (AGO). Physical and orbital parameters were determined and compared with the previous published data.
Veres, P   +4 more
openaire   +4 more sources

Unveiling an exoplanetary Neptunian atmosphere through multiband transit photometry [PDF]

open access: bronzeProceedings of the International Astronomical Union, 2013
AbstractThe “effective” radius of a planet is a function of wavelength due to scattering and/or absorption processes, and we can exploit simultaneous multiband transit photometry to probe the atmospheric scale height and composition. We present new photometric data of the recently discovered “hot Uranus” GJ3470b, gathered with the LBC camera at LBT ...
NASCIMBENI, VALERIO   +3 more
openaire   +3 more sources

Precision Near-Infrared Photometry for Exoplanet Transit Observations. I. Ensemble Spot Photometry for an All-Sky Survey [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2012
Near-IR observations are important for the detection and characterization of exoplanets using the transit technique, either in surveys of large numbers of stars or for follow-up spectroscopic observations of individual planets. In a controlled laboratory
C. Clanton   +4 more
semanticscholar   +8 more sources

Transit and secondary eclipse photometry in the near-infrared

open access: green, 2007
Near-infrared photometry of transiting extrasolar planets can be of great scientific value. It is however not straightforward to reach the necessary millimagnitude precision. Here we report on our attempts to observe transits and secondary eclipses of several extrasolar planets at 2.2 micron.
I. A. G. Snellen
openaire   +4 more sources

Some Tests to Establish Confidence in Planets Discovered by Transit Photometry

open access: yesThe Astrophysical Journal, 2002
Increased attention is being paid to transit photometry as a viable method for discovering or confirming detections of extrasolar planets. Several ground-based efforts are underway that target short-period, giant planets such as 51 Peg b, and several missions have been proposed to NASA and ESA to detect planets as small as Earth from spaceborne ...
J. Jenkins, D. Caldwell, W. Borucki
semanticscholar   +4 more sources

HD 209458 planetary transits from Hipparcos photometry

open access: green, 2000
During its 39-month mission, Hipparcos observed the star HD 209458 on 89 occasions. Five of these observations are shown to correspond to epochs of planetary transits, with a 2.3±0.4% mean decrease of flux in the Hpband being observed during the transits.
Robichon, N., Arenou, Frédéric
openaire   +3 more sources

Constraining the oblateness of transiting planets with photometry and spectroscopy [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Rapid planetary rotation can cause the equilibrium shape of a planet to be oblate. While planetary oblateness has mostly been probed by examining the subtle ingress and egress features in photometric transit light curves, we investigate the effect of oblateness on the spectroscopic Rossiter–McLaughlin (RM) signals. We found that
Nuno C. Santos   +6 more
openaire   +4 more sources

Diffuser-assisted Infrared Transit Photometry for Four Dynamically Interacting Kepler Systems [PDF]

open access: yesAstronomical Journal, 2019
We present ground-based infrared transit observations for four dynamically interacting Kepler planets, including Kepler-29b, Kepler-36c, KOI-1783.01, and Kepler-177c, obtained using the Wide-field Infrared Camera on the Hale 200 inch telescope at Palomar
S. Vissapragada   +13 more
semanticscholar   +1 more source

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