Results 11 to 20 of about 1,148 (222)
Comet C/2011 J2 (LINEAR): Photometry and stellar transit [PDF]
Planetary and Space Science, 2016 We present results of two-year photometric monitoring of Comet C/2011 J2 (LINEAR) that spans the time period from February 2013 through December 2014, before and after perihelion passage. The observations were conducted with broadband R filter. Analysis of observations of Comet C/2011 J2 (LINEAR) allows estimating the nucleus radius as function of ...
Oleksandra Ivanova +6 more
openalex +4 more sources
Transit origami: a method to coherently fold exomoon transits in time series photometry [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT One of the simplest ways to identify an exoplanetary transit is to phase fold a photometric time series upon a trial period – leading to a coherent stack when using the correct value. Such phase-folded transits have become a standard data visualization in modern transit discovery papers.
David Kipping
openalex +5 more sources
A Six Year, Low-resolution, Multibroadband Transit Photometry Study of HD 189733b
The Astronomical Journal, 2022 Transmission spectroscopy offers an invaluable opportunity to characterize the atmospheres of exoplanets. We present new ground-based optical transmission spectra of the hot Jupiter HD 189733b, derived from nine transits observed over a six year time ...
Cristilyn N. Gardner-Watkins +15 more
doaj +2 more sources
Mauna Kea High Speed Photometry of Transits of the Extrasolar Planet HD 209458B [PDF]
Open Astronomy, 2003 Using high-speed photometry techniques, three transits of the extrasolar planet across the disk of the star HD 209458 have been observed. The combination of a WET-style 3-channel photometer and an excellent site yielded millimagnitude photometric ...
Sullivan Denis J., Sullivan Tiri
doaj +2 more sources
Relative photometry of transiting exoplanet CoRoT-Exo-2b
, 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.
Peter Vereš +4 more
openalex +4 more sources
A posteriori detection of the planetary transit of HD 189733 b in the Hipparcos photometry [PDF]
Astronomy & Astrophysics, 2005 7 pages, to be published in Astronomy & ...
G. Hébrard, A. Lecavelier des Etangs
openalex +4 more sources
A transit timing analysis with combined ground- and space-based photometry [PDF]
EPJ Web of Conferences, 2015 The analysis of timing variations of transiting exoplanets allows one to discover additional planets in the system. Such bodies can be very low in mass and radius, so that they remain undetected by transit or radial velocity methods.
Raetz St. +4 more
doaj +3 more sources
Unveiling an exoplanetary Neptunian atmosphere through multiband transit photometry [PDF]
Proceedings 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 ...
V. Nascimbeni +3 more
openalex +3 more sources
Transit and secondary eclipse photometry in the near-infrared
, 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
openalex +4 more sources
Validation of TESS Planet Candidates with Multicolor Transit Photometry and TRICERATOPS+
The Astronomical JournalWe present an upgraded version of TRICERATOPS , a software package designed to calculate false positive probabilities for planet candidates identified by the Transiting Exoplanet Survey Satellite (TESS).
Jonathan Gomez Barrientos +35 more
doaj +2 more sources