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Related papers: How Rare are TESS Free-Floating Planets?

200 papers

Free-floating planets are recently drawing a special interest of the scientific community. Gravitational microlensing is up to now the exclusive method for the investigation of free-floating planets, including their spatial distribution…

Earth and Planetary Astrophysics · Physics 2014-10-16 L. Hamolli , M. Hafizi , A. A. Nucita

We have performed a search for flares and Quasi-Periodic Pulsations (QPPs) from low mass M dwarf stars using TESS 2 min cadence data. We find seven stars which show evidence of QPPs. Using Fourier and Empirical Mode Decomposition…

Solar and Stellar Astrophysics · Physics 2021-11-17 Gavin Ramsay , Dmitrii Kolotkov , J. Gerry Doyle , Lauren Doyle

We perform a study of stellar flares for the 24,809 stars observed with 2 minute cadence during the first two months of the TESS mission. Flares may erode exoplanets' atmospheres and impact their habitability, but might also trigger the…

The Transiting Exoplanet Survey Satellite (TESS) will be conducting a nearly all-sky photometric survey over two years, with a core mission goal to discover small transiting exoplanets orbiting nearby bright stars. It will obtain 30-minute…

The recently launched Transiting Exoplanet Survey Satellite (TESS) is expected to produce many new exoplanet discoveries which will be especially amenable to follow-up study. Assessments of the planet discovery yield of TESS, such as…

Earth and Planetary Astrophysics · Physics 2018-05-24 L. C. Mayorga , Daniel P. Thorngren

The mass function (MF) of isolated objects measured by microlensing consists of both a stellar and a planetary component. We compare the microlensing MFs of Gould et al (2022) and Sumi et al (2023) to other measurements of the MF. The…

Earth and Planetary Astrophysics · Physics 2025-03-17 Jennifer C. Yee , Scott J. Kenyon

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. WFIRST will have the ability to detect…

We report the observations of two self-lensing pulses from KIC 12254688 in Transiting Exoplanet Survey Satellite (TESS) light curves. This system, containing a F2V star and white-dwarf companion, was amongst the first self-lensing binary…

Solar and Stellar Astrophysics · Physics 2024-01-17 Nicholas M. Sorabella , Silas G. T. Laycock , Dimitris M. Christodoulou , Sayantan Bhattacharya

The Kepler and K2 missions enabled robust calculations of planet occurrence rates around FGKM-type stars. However, these missions observed too few stars with earlier spectral types to tightly constrain the occurrence rates of planets…

Earth and Planetary Astrophysics · Physics 2024-12-24 Steven Giacalone , Courtney D. Dressing

Microlensing observations suggest that the mass distribution of free-floating planets (FFPs) follows a declining power-law with increasing mass. The origin of such distribution is unclear. Using a population synthesis framework, we…

Earth and Planetary Astrophysics · Physics 2025-11-06 Kangrou Guo , Shigeru Ida , Masahiro Ogihara

The mass and distance functions of free-floating planets (FFPs) would give major insights into the formation and evolution of planetary systems, including any systematic differences between those in the disk and bulge. We show that the only…

Earth and Planetary Astrophysics · Physics 2021-08-18 Andrew Gould , Weicheng Zang , Shude Mao , Subo Dong

Although more than 5000 TESS Objects of Interest have been cataloged, no comprehensive survey of the flare rates of their host stars exists. We perform the first flare survey of all 2250 non-retired TOIs with 2 min cadence light curves to…

Solar and Stellar Astrophysics · Physics 2022-03-14 Ward S. Howard

The WFIRST microlensing mission will measure precise light curves and relative parallaxes for millions of stars, giving it the potential to characterize short-period transiting planets all along the line of sight and into the galactic…

Earth and Planetary Astrophysics · Physics 2017-03-08 Benjamin T. Montet , Jennifer C. Yee , Matthew T. Penny

We present the Transiting Exoplanet Survey Satellite (TESS) Habitable Zone Stars Catalog, a list of 1822 nearby stars with a TESS magnitude brighter than T = 12 and reliable distances from Gaia DR2, around which the NASA's TESS mission can…

Earth and Planetary Astrophysics · Physics 2019-03-28 L. Kaltenegger , J. Pepper , K. Stassun , R. Oelkers

We characterize the magnetic activity of M dwarfs to provide the planet community with information on the energy input from the star; in particular, in addition to the frequency of optical flares directly observed with TESS, we aim at…

Solar and Stellar Astrophysics · Physics 2022-09-14 B. Stelzer , M. Bogner , E. Magaudda , St. Raetz

With its planet detection efficiency reaching a maximum for orbital radii between 1 and 10 AU, microlensing provides a unique sensitivity to planetary systems similar to our own around galactic and even extragalactic stars acting as lenses…

Astrophysics · Physics 2007-05-23 M. Dominik

We report a free-floating planet (FFP) candidate identified from the analysis of the microlensing event KMT-2023-BLG-2669. The lensing light curve is characterized by a short duration $(\lesssim 3\,{\rm days})$ and a small amplitude…

Optical observations of gamma-ray bursts (GRBs) contemporaneous with their prompt high-energy emission are rare, but they can provide insights into the physical processes underlying these explosive events. The Transiting Exoplanet Survey…

High Energy Astrophysical Phenomena · Physics 2025-07-10 Rahul Jayaraman , Michael Fausnaugh , George Ricker , Roland Vanderspek

Within the first few hundreds of millions of years, many physical processes sculpt the eventual properties of young planets. NASA's TESS mission has surveyed young stellar associations across the entire sky for transiting planets providing…

TESS has proven to be a powerful resource for finding planets, including those that orbit the most prevalent stars in our galaxy: the M dwarfs. Identification of stellar companions (both bound and unbound) has become a standard component of…