An anomaly detector with immediate feedback to hunt for planets of Earth mass and below by microlensing
@article{Dominik2007AnAD, title={An anomaly detector with immediate feedback to hunt for planets of Earth mass and below by microlensing}, author={Martin Dominik and Nicholas J. Rattenbury and Alasdair Allan and Shude Mao and D. M. Bramich and Martin J. Burgdorf and Eamonn Kerins and Yiannis Tsapras and Lukasz Wyrzykowski}, journal={Monthly Notices of the Royal Astronomical Society}, year={2007}, volume={380}, pages={792-804} }
The discovery of OGLE 2005-BLG-390Lb, the first cool rocky/i cy exoplanet, impressively demonstrated the sensitivity of the microlensing technique to extra-solar planets below 10 M�. A planet of 1 Minstead of the expected 5 Mfor OGLE 2005-BLG-390Lb (with an uncertainty factor of two) in the same spot would have provided a detectable deviation with an amplitude of � 3 per cent and a duration of � 12 h. While a standard sampling interval of 1.5 to 2.5 hours for microlensing follow-up observations…
51 Citations
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Within less than 15 years, the count of known planets orbiting stars other than the Sun has risen from none to more than 400 with detections arising from four successfully applied techniques:…
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- 2009
Some of the difficulties in determining the underlying physical properties that are relevant for observed anomalies in microlensing light curves, such as the mass and separation of extrasolar planets…
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- Physics, Geology
- 2009
OGLE III and MOA-II are discovering 600–1000 Galactic bulge microlens events each year. This stretches the resources available for intensive follow-up monitoring of the light curves in search of…
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- Geology, Physics
- 2008
The technique of gravitational microlensing is currently unique in its ability to provide a sample of terrestrial exoplanets around both Galactic disk and bulge stars, allowing to measure their…
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- Physics, Geology
- 2010
We present the first measurement of the planet frequency beyond the “snow line,” for the planet-to-star mass-ratio interval −4.5 < log q < −2, corresponding to the range of ice giants to gas giants.…
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- Physics, GeologyMonthly Notices of the Royal Astronomical Society
- 2019
Discussing the particularly long gravitational microlensing event OGLE-2014-BLG-1186 with a time-scale t_E ∼ 300 d, we present a methodology for identifying the nature of localised deviations from…
An Isolated Stellar-mass Black Hole Detected through Astrometric Microlensing
- Physics, GeologyThe Astrophysical Journal
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We report the first unambiguous detection and mass measurement of an isolated stellar-mass black hole (BH). We used the Hubble Space Telescope (HST) to carry out precise astrometry of the source star…
A COLD NEPTUNE-MASS PLANET OGLE-2007-BLG-368Lb: Cold neptunes are common
- Physics, Geology
- 2010
We present the discovery of a Neptune-mass planet OGLE-2007-BLG-368Lb with a planet–star mass ratio of q = [9.5 ± 2.1] × 10−5 via gravitational microlensing. The planetary deviation was detected in…
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