Search for Extra-Solar Planets Through Monitoring Microlensing Events from Antarctica
During the months when the galactic bulge is visible from the southern hemisphere, there are typically about 8 to 10 on-going microlensing events at any given time. If the lensing stars have planets around them, then the signature of the planets can be seen as sharp, extra peaks on the microlensing...
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ftcern:oai:cds.cern.ch:339485 2023-05-15T14:02:29+02:00 Search for Extra-Solar Planets Through Monitoring Microlensing Events from Antarctica Sahu, K C 1997-11-27 http://cds.cern.ch/record/339485 eng eng http://cds.cern.ch/record/339485 astro-ph/9711315 oai:cds.cern.ch:339485 Astrophysics and Astronomy 1997 ftcern 2018-07-28T03:29:08Z During the months when the galactic bulge is visible from the southern hemisphere, there are typically about 8 to 10 on-going microlensing events at any given time. If the lensing stars have planets around them, then the signature of the planets can be seen as sharp, extra peaks on the microlensing light curves. And if every lensing star has a Jupiter around it, then the probability of detecting an extra spike is of the order of 10%. Thus continuous and frequent monitoring of the on-going microlensing events, with a sampling interval of a few hours, provides a powerful new method to search for planets around lensing stars. Such monitoring programs are now being carried out using a network of 1-meter class telescopes situated at appropriately spaced longitudes in the southern hemisphere (for example, by PLANET collaboration). However, the galactic bulge is visible from the south pole throughout this period, and hence a single automated telescope at the south-pole can provide an efficient means of carrying out the monitoring program. Up to about 20 events can be monitored during a single 3-month season with a 1-meter telescope, potentially leading to the detection of two planetary signals. The telescope can also be used for several other research projects involving microlensing and variability of stars. Other/Unknown Material Antarc* Antarctica South pole South pole CERN Document Server (CDS) Jupiter ENVELOPE(101.133,101.133,-66.117,-66.117) South Pole |
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Open Polar |
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CERN Document Server (CDS) |
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ftcern |
language |
English |
topic |
Astrophysics and Astronomy |
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Astrophysics and Astronomy Sahu, K C Search for Extra-Solar Planets Through Monitoring Microlensing Events from Antarctica |
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Astrophysics and Astronomy |
description |
During the months when the galactic bulge is visible from the southern hemisphere, there are typically about 8 to 10 on-going microlensing events at any given time. If the lensing stars have planets around them, then the signature of the planets can be seen as sharp, extra peaks on the microlensing light curves. And if every lensing star has a Jupiter around it, then the probability of detecting an extra spike is of the order of 10%. Thus continuous and frequent monitoring of the on-going microlensing events, with a sampling interval of a few hours, provides a powerful new method to search for planets around lensing stars. Such monitoring programs are now being carried out using a network of 1-meter class telescopes situated at appropriately spaced longitudes in the southern hemisphere (for example, by PLANET collaboration). However, the galactic bulge is visible from the south pole throughout this period, and hence a single automated telescope at the south-pole can provide an efficient means of carrying out the monitoring program. Up to about 20 events can be monitored during a single 3-month season with a 1-meter telescope, potentially leading to the detection of two planetary signals. The telescope can also be used for several other research projects involving microlensing and variability of stars. |
author |
Sahu, K C |
author_facet |
Sahu, K C |
author_sort |
Sahu, K C |
title |
Search for Extra-Solar Planets Through Monitoring Microlensing Events from Antarctica |
title_short |
Search for Extra-Solar Planets Through Monitoring Microlensing Events from Antarctica |
title_full |
Search for Extra-Solar Planets Through Monitoring Microlensing Events from Antarctica |
title_fullStr |
Search for Extra-Solar Planets Through Monitoring Microlensing Events from Antarctica |
title_full_unstemmed |
Search for Extra-Solar Planets Through Monitoring Microlensing Events from Antarctica |
title_sort |
search for extra-solar planets through monitoring microlensing events from antarctica |
publishDate |
1997 |
url |
http://cds.cern.ch/record/339485 |
long_lat |
ENVELOPE(101.133,101.133,-66.117,-66.117) |
geographic |
Jupiter South Pole |
geographic_facet |
Jupiter South Pole |
genre |
Antarc* Antarctica South pole South pole |
genre_facet |
Antarc* Antarctica South pole South pole |
op_relation |
http://cds.cern.ch/record/339485 astro-ph/9711315 oai:cds.cern.ch:339485 |
_version_ |
1766272755410403328 |