Results 21 to 30 of about 21,714 (161)

The fundamentals of Lyman-alpha exoplanet transits [PDF]

open access: yes, 2022
Lyman-$\alpha$ transits have been detected from several nearby exoplanets and are one of our best insights into the atmospheric escape process. However, due to ISM absorption, we typically only observe the transit signature in the blue-wing, making them ...
Shkolnik, Evgenya L.   +16 more
core   +1 more source

The precision of time registration with Danjon astrolabe [PDF]

open access: yesSerbian Astronomical Journal, 1998
During 1988 at the Munich, Vienna and Graz stations selected stars were observed for the purpose of determining difference in the longitudes. The measurements were performed with Danjon astrolabe by using the method of equal zenith distances. In
Perović G., Cvetković Z.
doaj   +1 more source

A Multi-year Search for Transits of Proxima Centauri. II. No Evidence for Transit Events with Periods between 1 and 30 days [PDF]

open access: yes, 2019
Using a global network of small telescopes, we have obtained light curves of Proxima Centauri at 329 observation epochs from 2006 to 2017. The planet Proxima b discovered by Anglada-Escudé et al.
Stassun, Keivan G.   +15 more
core   +1 more source

Up-down biphasic volume response of human red blood cells to PIEZO1 activation during capillary transits.

open access: yesPLoS Computational Biology, 2021
In this paper we apply a novel JAVA version of a model on the homeostasis of human red blood cells (RBCs) to investigate the changes RBCs experience during single capillary transits.
Simon Rogers, Virgilio L Lew
doaj   +1 more source

HD 209458 planetary transits from Hipparcos photometry

open access: yes, 2000
International audienceDuring 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 ...
Robichon, N., Arenou, Frédéric
core   +3 more sources

On the search for transits of the planets orbiting Gliese 876 [PDF]

open access: yes, 2006
We report the results of a globally coordinated photometric campaign to search for transits by the P~30 day and P~60 day outer planets of the three-planet system orbiting the nearby M dwarf Gl 876. These two planets experience strong mutual perturbations,
Price, A.   +56 more
core   +2 more sources

Model Checking Branching Properties on Petri Nets with Transits [PDF]

open access: yes, 2020
To model check concurrent systems, it is convenient to distinguish between the data flow and the control. Correctness is specified on the level of data flow whereas the system is configured on the level of control.
Jesko Hecking-Harbusch (17433369)   +3 more
core   +2 more sources

Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 during JWST Transit Spectroscopy Observations

open access: yesThe Astrophysical Journal, 2023
We present the first analysis of JWST near-infrared spectroscopy of stellar flares from TRAPPIST-1 during transits of rocky exoplanets. Four flares were observed from 0.6–2.8 μ m with the Near Infrared Imager and Slitless Spectrograph and 0.6–3.5 μ m ...
Ward S. Howard   +18 more
doaj   +1 more source

Signal preservation of exomoon transits during light curve folding

open access: yes, 2022
In the search for moons around extrasolar planets (exomoons), astronomers are confronted with a stunning observation. Although 3400 of the 4500 exoplanets were discovered with the transit method and although there are well over 25 times as many moons ...
Heller, R.   +5 more
core   +1 more source

A Search for Transits among the Delta Scuti Variables in Kepler

open access: yes, 2021
We search for transits around all known pulsating δ Sct variables (6500 K < Teff < 10,000 K) in the long-cadence Kepler data after subtracting the pulsation signal through an automated routine.
Montet, Benjamin T.   +9 more
core   +1 more source

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