Close Double-Stars Discovered among Photometric Standards with Gemini Altair Adaptive Optics System: FS108 and GSPC P309-U.

Details Close Double-Stars Discovered among Photometric Standards with Gemini Altair Adaptive Optics System: FS108 and GSPC P309-U. Close Double-Stars Discovered among Photometric Standards with Gemini Altair Adaptive Optics System: FS108 and GSPC P309-U.

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atel.1729....1l&link_type=abstract

The Astronomer's Telegram, #1729

Physics

Optics

Infra-Red, Binaries

Scientific paper

Reported on behalf of Gemini Observatory. In the course of routine photometric calibrations carried out at Gemini North (Mauna Kea, Hawaii), we have discovered that two standard stars (FS 108 and GSPC P309-U) are in fact close double-stars. We report our findings in order to alert the community that these stars are not suitable standards .The observations were made with the facility Adaptive Optics system (Altair) and near infrared imager (NIRI).

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