Results 101 to 110 of about 3,279 (221)

Astronomy from the moon in the next decades: from exoplanets to cosmology in visible light and beyond

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
We look at what astronomy from the Moon might be like over the next few decades. The Moon offers the possibility of installing large telescopes or interferometers with instruments larger than those on orbiting telescopes. We first present examples of ambitious science cases, in particular ideas that cannot be implemented from Earth.
Schneider, Jean   +2 more
openaire   +4 more sources

Exoplanet transit photometry for stellar activity and exomoon research

open access: yes, 2021
Photometry underlies important discoveries in observational astronomy, from the detection of stellar magnetic phenomena unveiling dynamic dynamo processes to the much sought-after identification of exomoons.
Zaleski, Shelley M.
core   +1 more source

Surprise Nondetection of Upsilon Andromedae b with MIRC-X and MYSTIC at the CHARA Array

open access: yesThe Astronomical Journal
Ground-based long baseline interferometry is a powerful tool for characterizing exoplanets that are too close to their host star to be imaged with single-dish telescopes. The CHARA Array can resolve companions down to 0.5 mas, allowing us in principle to
Tyler Gardner   +13 more
doaj   +1 more source

A catalogue of exoplanet atmospheric retrieval codes [PDF]

open access: yes
Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations.
MacDonald, Ryan J., Batalha, Natasha E.
core   +1 more source

Saturns, but Not Super-Jupiters, Occur More Frequently in the Presence of Inner Super-Earths

open access: yesThe Astrophysical Journal
Studies from recent years have reached different conclusions regarding how frequently super-Earths are accompanied by long-period giant planets and vice versa. This relation has been predicted to be mass dependent by planet-formation models.
Etienne Lefèvre-Forján   +1 more
doaj   +1 more source

Minimizing Star-spot Contamination of Exoplanet Transit Spectroscopy Using Alternate Normalization

open access: yesThe Astronomical Journal
Recently, M. H. Currie et al. (2023) simulated the detection of molecules in the atmospheres of temperate rocky exoplanets transiting nearby M-dwarf stars.
Drake Deming   +3 more
doaj   +1 more source

The 0.5MJ transiting exoplanet WASP-13b

open access: yes, 2009
We report the discovery of WASP-13b, a low-mass Mp = 0.46+0.06 ?0.05 MJ transiting exoplanet with an orbital period of 4.35298 +/- 0.00004 days. The transit has a depth of 9 mmag, and although our follow-up photometry does not allow us to constrain the ...
E. Simpson   +34 more
core  

Comparing Results from Two Uniform Phase-curve Surveys

open access: yesThe Astronomical Journal
We present a comparison of the two most recent and comprehensive Spitzer phase curve studies—L. Dang et al. and M. R. Swain et al.—which report analyses of the Spitzer 4.5 μ m phase curves.
Emeline Decocq   +4 more
doaj   +1 more source

How to Size an Exoplanet? A Model Approach for Visualization

open access: yes, 2013
The realization and experiences with a physical exoplanet model in the education and outreach are described. During the tests with students in the classroom and adults at public demonstrations, the following conclusions were drawn: in the visualization ...
Kereszturi, Akos
core  

Identifying Exoplanet Candidates Using WaveCeptionNet

open access: yesThe Astronomical Journal
In this study, we propose a wavelet-transform-based light curve representation method and a CNN model based on Inception-v3 for fast classification of light curves, enabling the quick discovery of potentially interesting targets from massive data ...
Huiping Liao   +4 more
doaj   +1 more source

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