Prediction of Planet Yields by the PRime-focus Infrared Microlensing Experiment Microlensing Survey
arXiv:2304.04605 · doi:10.3847/1538-3881/acccf9
Abstract
The PRime-focus Infrared Microlensing Experiment (PRIME) will be the first to conduct a dedicated near infrared (NIR) microlensing survey by using a 1.8m telescope with a wide field of view of 1.45 at the South African Astronomical Observatory (SAAO). The major goals of the PRIME microlensing survey are to measure the microlensing event rate in the inner Galactic bulge to help design the observing strategy for the exoplanet microlensing survey by the {\it Nancy Grace Roman Space Telescope} and to make a first statistical measurement of exoplanet demographics in the central bulge fields where optical observations are very difficult owing to the high extinction in these fields. Here we conduct a simulation of the PRIME microlensing survey to estimate its planet yields and determine the optimal survey strategy, using a Galactic model optimized for the inner Galactic bulge. In order to maximize the number of planet detections and the range of planet mass, we compare the planet yields among four observation strategies. Assuming {the \citet{2012Natur.481..167C} mass function as modified by \citet{2019ApJS..241....3P}}, we predict that PRIME will detect planetary signals for planets ( planets with , planets with mass , planets ), per year depending on the chosen observation strategy.
arXiv comment25 pages, 17 figures, and 3 tables. Accept for publication in The Astronomical Journal
References in corpus (50)
- The UKIRT Infrared Deep Sky Survey (UKIDSS)
- VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way
- The Proper Motion of Sgr A*: II. The Mass of Sgr A*
- One or more bound planets per Milky Way star from microlensing observations
- The UKIDSS Galactic Plane Survey
- Real-Time Difference Imaging Analysis of MOA Galactic Bulge Observations During 2000
- Unbound or Distant Planetary Mass Population Detected by Gravitational Microlensing
- OGLE-2003-BLG-262: Finite-Source Effects from a Point-Mass Lens
- Mapping the Three-Dimensional Density of the Galactic Bulge with VVV Red Clump Stars
- The Structure of the Milky Way's Bar Outside the Bulge
- Interstellar Extinction Law toward the Galactic Center III: J, H, Ks bands in the 2MASS and the MKO systems, and 3.6, 4.5, 5.8, 8.0 micron in the Spitzer/IRAC system
- No large population of unbound or wide-orbit Jupiter-mass planets
- Galaxia: a code to generate a synthetic survey of the Milky Way
- Detecting Earth-Mass Planets with Gravitational Microlensing
- Predictions of the WFIRST Microlensing Survey I: Bound Planet Detection Rates
- The Exoplanet Mass-Ratio Function from the MOA-II Survey: Discovery of a Break and Likely Peak at a Neptune Mass
- Stellar populations in the Milky Way bulge region : Towards solving the Galactic bulge and bar shapes using 2MASS data
- Microlensing optical depth towards the Galactic bulge from MOA observations during 2000 with Difference Image Analysis
- Simulation of a Space-Based Microlensing Survey for Terrestrial Extra-Solar Planets
- OGLE-2005-BLG-071Lb, the Most Massive M-Dwarf Planetary Companion?
- OGLE-IV: Fourth Phase of the Optical Gravitational Lensing Experiment
- Identification of the OGLE-2003-BLG-235/MOA-2003-BLG-53 Planetary Host Star
- Microlensing with advanced contour integration algorithm: Green's theorem to third order, error control, optimal sampling and limb darkening
- Discovery and Mass Measurements of a Cold, 10-Earth Mass Planet and Its Host Star
- Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey II: Free-Floating Planet Detection Rates
- The frequency of snowline-region planets from four-years of OGLE-MOA-Wise second-generation microlensing
- ExELS: an exoplanet legacy science proposal for the ESA Euclid mission I. Cold exoplanets
- Microlensing optical depth and event rate toward the Galactic bulge from 8 yr of OGLE-IV observations
- VBBinaryLensing: a public package for microlensing light curve computation
- Optimal Survey Strategies and Predicted Planet Yields for the Korean Microlensing Telescope Network
- The Bar and Spiral Arms in the Milky Way: Structure and Kinematics
- Modeling microlensing events with MulensModel
- Mapping the stellar age of the Milky Way bulge with the VVV. III. High resolution reddening map
- Systematic KMTNet Planetary Anomaly Search. IV. Complete Sample of 2019 Prime-Field
- A Parametric Galactic Model toward the Galactic Bulge Based on Gaia and Microlensing Data
- UKIRT microlensing surveys as a pathfinder for : The detection of five highly extinguished low- events
- Besançon Galactic model analysis of MOA-II microlensing: evidence for a mass deficit in the inner bulge
- Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye
- Systematic KMTNet Planetary Anomaly Search, Paper VII: Complete Sample of Planets from the First Four-Year Survey
- Euclid-Roman joint microlensing survey: early mass measurement, free floating planets and exomoons
- Finite source effects in microlensing: A precise, easy to implement, fast and numerical stable formalism
- VVV Survey Microlensing: the Galactic Longitude Dependence
- K Band Microlensing of the Inner Galaxy
- UKIRT-2017-BLG-001Lb: A giant planet detected through the dust
- No Large Dependence of Planet Frequency on Galactocentric Distance
- VVV Survey Microlensing: the Galactic Latitude Dependence
- VVV Survey Microlensing: Catalog of Best and Forsaken Events
- Deep PSF photometric catalog of the VVV survey data
- Comparing Observed Stellar Kinematics and Surface Densities in a Low Latitude Bulge Field to Galactic Population Synthesis Models
- Unveiling short period binaries in the inner VVV bulge