Results 21 to 30 of about 75,518 (268)

TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica

open access: yesThe Astronomical Journal, 2023
We present the spectroscopic confirmation and precise mass measurement of the warm giant planet TOI-199 b. This planet was first identified in TESS photometry and confirmed using ground-based photometry from ASTEP in Antarctica including a full 6.5 hr ...
Melissa J. Hobson   +51 more
doaj   +1 more source

Transit timing variation and activity in the WASP-10 planetary system

open access: yes, 2010
Transit timing analysis may be an effective method of discovering additional bodies in extrasolar systems which harbour transiting exoplanets. The deviations from the Keplerian motion, caused by mutual gravitational interactions between planets, are ...
A. Niedzielski   +74 more
core   +1 more source

How to determine an exomoon's sense of orbital motion [PDF]

open access: yes, 2014
We present two methods to determine an exomoon's sense of orbital motion (SOM), one with respect to the planet's circumstellar orbit and one with respect to the planetary rotation. Our simulations show that the required measurements will be possible with
Albrecht, Simon, Heller, René
core   +1 more source

Refining the Transit-timing and Photometric Analysis of TRAPPIST-1: Masses, Radii, Densities, Dynamics, and Ephemerides

open access: yesThe Planetary Science Journal, 2021
We have collected transit times for the TRAPPIST-1 system with the Spitzer Space Telescope over four years. We add to these ground-based, HST, and K2 transit-time measurements, and revisit an N -body dynamical analysis of the seven-planet system using ...
Eric Agol   +34 more
doaj   +1 more source

Analysis of new high-precision transit light curves of WASP-10 b: starspot occultations, small planetary radius, and high metallicity

open access: yes, 2011
The WASP-10 planetary system is intriguing because different values of radius have been reported for its transiting exoplanet. The host star exhibits activity in terms of photometric variability, which is caused by the rotational modulation of the spots.
Baraffe   +57 more
core   +1 more source

Observations of Extrasolar Planets During the non-Cryogenic Spitzer Space Telescope Mission [PDF]

open access: yes, 2007
Precision infrared photometry from Spitzer has enabled the first direct studies of light from extrasolar planets, via observations at secondary eclipse in transiting systems.
David Charbonneau   +7 more
core   +2 more sources

High-precision photometry of WASP-12 b transits

open access: yes, 2011
The transiting extrasolar planet WASP-12 b was found to be one of the most intensely irradiated exoplanets. It is unexpectedly bloated and is losing mass that may accrete into the host star.
Agol   +35 more
core   +1 more source

Practical suggestions on detecting exomoons in exoplanet transit light curves

open access: yes, 2010
The number of known transiting exoplanets is rapidly increasing, which has recently inspired significant interest as to whether they can host a detectable moon. Although there has been no such example where the presence of a satellite was proven, several
Kiss, L. L.   +3 more
core   +1 more source

Relation of Adverse Childhood Experiences to Clinical and Patient‐Reported Outcomes for Adults With Sickle Cell Disease: A Registry Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adverse childhood experiences (ACEs) are stressful or traumatic events prior to age 18 that are known to have a lasting impact on individuals’ health and well‐being. There is a gap in understanding the relationship between ACEs and Other Life Stressors and health status for adults with sickle cell disease (SCD).
Marsha Treadwell   +8 more
wiley   +1 more source

Doomed Worlds. II. Reassessing Suggestions of Orbital Decay for TrES-5 b

open access: yesThe Planetary Science Journal
TrES-5 b is one of only three ultrahot Jupiters with suggestions of a possibly decreasing orbital period that have persisted through multiple independent analyses.
Marvin Rothmeier   +11 more
doaj   +1 more source

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