Results 21 to 30 of about 47,304 (316)

The origin of free-floating planets [PDF]

Astrophysics and Space Science, 2023
Free-floating planets (FFPs) are the lightest products of star formation and they carry important information on the initial conditions of the environment in which they were formed. They were first discovered in the 2000 s but still few of them have been
Núria Miret-Roig
semanticscholar   +5 more sources

Euclid-Roman joint microlensing survey: early mass measurement, free floating planets and exomoons [PDF]

Astronomy & Astrophysics, 2022
As the Kepler mission has done for hot exoplanets, the ESA Euclid and NASA Roman missions have the potential to create a breakthrough in our understanding of the demographics of cool exoplanets, including unbound, or"free-floating", planets (FFPs).
E. Bachelet, David T. Specht, Matthew T. Penny, M. Hundertmark, Supachai Awiphan, Jean‐Philippe Beaulieu, M. Dominik, E. Kerins, Dan Maoz, Evan Meade, Achille Nucita, R. Poleski, ‪Clément Ranc, Jason Rhodes, A. C. Robin   +14 more
openalex   +2 more sources

On the detection of binary free-floating planets in the Roman Galactic Exoplanet Survey [PDF]

Monthly notices of the Royal Astronomical Society
The recent discovery of 40 binary Jupiter-mass free-floating planets in the Trapezium cluster by the James Webb Space Telescope(Pearson & McCaughrean 2023) has opened new windows and questions in planets studies.
Sedighe Sajadian
openalex   +2 more sources

Disc fragmentation. I. Ejection of Jupiter-mass Free Floating Planets from growing binary systems [PDF]

Monthly notices of the Royal Astronomical Society
Over the past 25 years, observations have uncovered a large population of free-floating planets (FFPs), whose origins remain debated. Massive FFPs (several Jupiter masses or more) may form via gravitational collapse of molecular clouds, similar to ...
Aleksandra Ćalović, Sergei Nayakshin, S. L. Casewell, N. Miret-Roig   +3 more
openalex   +2 more sources

The JWST/NIRISS Deep Spectroscopic Survey for Young Brown Dwarfs and Free-floating Planets [PDF]

The Astronomical Journal
The discovery and characterization of free-floating planetary-mass objects (FFPMOs) is fundamental to our understanding of star and planet formation. Here we report results from an extremely deep spectroscopic survey of the young star cluster NGC1333 ...
Adam B. Langeveld, Aleks Scholz, Koraljka Mužić, Ray Jayawardhana, Daniel Capela, Loïc Albert, René Doyon, Laura Flagg, Matthew de Furio, Doug Johnstone, David Lafrèniere, Michael Meyer   +11 more
doaj   +2 more sources

Secure Identification of Free-Floating Planets

The Astrophysical Journal, 2006
Among the methods proposed to detect extrasolar planets, microlensing is the only technique that can detect free-floating planets. Free-floating planets are detected through the channel of short-duration isolated lensing events.
Cheongho Han, Hog E., Udalski A., Witt H. J.   +3 more
core   +2 more sources

Measurement of the Free-Floating Planet Mass Function with Simultaneous Euclid and WFIRST Microlensing Parallax Observations [PDF]

, 2019
Free-floating planets are the remnants of violent dynamical rearrangements of planetary systems. It is possible that even our own solar system ejected a large planet early in its evolution.
Akeson, Rachel, Bachelet, Etienne, Beaulieu, Jean-Phillipe, Beichman, Charles, Bennett, David, Bhattacharya, Aparna, Bozza, Valerio, Gaudi, B. Scott, Hendederson, Calen B., Johnson, Samson, Kerins, Eamonn, Mao, Shude, Novati, Sebastiano Calchi, Penny, Matthew T., Poleski, Radek, Ranc, Clement, Rhodes, Jason, Sahu, Kailash C., Shvartzvald, Yossi, Street, Rachel   +19 more
core   +4 more sources

Free-Floating Planets, the Einstein Desert, and 'Oumuamua [PDF]

, 2022
: We complete the survey for finite-source/point-lens (FSPL) giant-source events in 2016-2019 KMTNet microlensing data. The 30 FSPL events show a clear gap in Einstein radius, 9 µ as < θ E < 26 µ as, which is consistent with the gap in Einstein timescales
A. Gould, Y. Jung, K. Hwang, S. Dong, M. Albrow, S. Chung, C. Han, Y. Ryu, I. Shin, Y. Shvartzvald, Hongjing Yang, J. Yee, W. Zang, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, B.-G. Park, R. Pogge   +20 more
semanticscholar   +3 more sources

The astrometric signal of microlensing events caused by free floating planets [PDF]

Astrophysics and Space Science, 2018
Astrometric observations of microlensing events can be used to obtain important information about lenses. During these events, the shift of the position of the multiple image centroid with respect to the source star location can be measured. This effect,
Lindita Hamolli, Mimoza Hafizi, Francesco De Paolis, Achille A. Nucita   +3 more
openalex   +3 more sources

Predicting the Galactic population of free-floating planets from realistic initial conditions [PDF]

Monthly notices of the Royal Astronomical Society
We present the first prediction for the mass distribution function of Galactic free-floating planets (FFPs) that aims to accurately include the relative contributions of multiple formation pathways and stellar populations.
Gavin A. L. Coleman, William DeRocco
openalex   +3 more sources