Results 61 to 70 of about 8,932,640 (210)

The Habitable Exoplanet Observatory (HabEx) [PDF]

open access: yes, 2018
The Habitable-Exoplanet Observatory (HabEx) is a candidate flagship mission being studied by NASA and the astrophysics community in preparation of the 2020 Decadal Survey.
Prusti, Timo   +28 more
core   +1 more source

X-Ray studies of exoplanet systems [PDF]

open access: yes, 2022
X-rays are integral to furthering our knowledge of exoplanetary systems. In this work we discuss the use of X-ray observations to understand star-planet interac- tions, mass-loss rates of an exoplanet’s atmosphere and the study of an exoplanet’s atmospheric components using future X-ray spectroscopy.
openaire   +1 more source

The 0.5MJ transiting exoplanet WASP-13b [PDF]

open access: yes, 2009
We report the discovery of WASP-13b, a low-mass $ M_{\rm p} = 0.46 ^_~M_J$ transiting exoplanet with an orbital period of 4.35298 $\pm$ 0.00004 days. The transit has a depth of 9 mmag, and although our follow-up photometry does not allow us to constrain ...
West, Richard G.   +137 more
core   +1 more source

The Demographics of Terrestrial Planets in the Venus Zone

open access: yesThe Astronomical Journal, 2023
Understanding the physical characteristics of Venus, including its atmosphere, interior, and its evolutionary pathway with respect to Earth, remains a vital component for terrestrial planet evolution models and the emergence and/or decline of planetary ...
Colby Ostberg   +9 more
doaj   +1 more source

Homogeneous Transit Timing Analyses of Ten Exoplanet Systems [PDF]

open access: yes, 2022
16 pages, 5 figures, accepted for publication by the ...
Baştürk, Ö   +21 more
openaire   +2 more sources

Relative habitability of exoplanet systems with two giant planets

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
ABSTRACT The architecture of a planetary system can influence the habitability of a planet via orbital effects, particularly in the areas of stability and eccentricity. Some of these effects are readily apparent, particularly when they occur on short time-scales that are easily numerically calculable.
Bailey, Nora, Fabrycky, Dan
openaire   +2 more sources

The K2 and TESS Synergy. II. Revisiting 26 Systems in the TESS Primary Mission

open access: yesThe Astronomical Journal, 2023
The legacy of NASA’s K2 mission has provided hundreds of transiting exoplanets that can be revisited by new and future facilities for further characterization, with a particular focus on studying the atmospheres of these systems. However, the majority of
Erica Thygesen   +18 more
doaj   +1 more source

HARPS-N @ TNG, two year harvesting data : performances and results [PDF]

open access: yes, 2014
The planet hunter HARPS-N[1], in operation at the Telescopio Nazionale Galileo (TNG)[13] from April 2012 is a highresolution spectrograph designed to achieve a very high radial velocity precision measurement thanks to an ultra stable environment and in a
Latham, D.W.   +39 more
core   +1 more source

A Solar Analog Model for Decrease in Far Ultraviolet Irradiance Under a Grand Minimum

open access: yesEarth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Solar analog field stars having a range of magnetic activity can provide an estimate of solar spectral irradiance (SSI) variability relevant to understanding the Sun's influence on terrestrial climate. This approach is particularly useful for far ultraviolet (FUV) irradiance that cannot be observed from the Earth surface.
D. Lubin, C. Melis, D. Tytler
wiley   +1 more source

Statistical Scale Analyses of a Diurnal Periodicity in Auroral Kilometric Radiation, Observed by Wind/WAVES

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The Earth's strongest natural radio emission is Auroral Kilometric Radiation (AKR), which is correlated with auroral intensity, and is a barometer for space weather. AKR is generated by the electron cyclotron maser instability, with sources on auroral field lines. Previous work on AKR and radio emissions from other planets (or stars) points to
Alexandra Ruth Fogg   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy