Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.6012b&link_type=abstract
American Astronomical Society, AAS Meeting #211, #60.12; Bulletin of the American Astronomical Society, Vol. 39, p.845
Astronomy and Astrophysics
Astronomy
Scientific paper
Las Cumbres Observatory Global Telescope (LCOGT) is in the process of constructing a world-wide network of telescopes optimized for time-domain astronomy. We currently own and operate the two 2-meter Faulkes Telescopes, Faulkes Telescope North (FTN) on Haleakala on Maui, and Faulkes Telescope South (FTS) at Siding Spring, Australia. One benefit of a global network of telescopes is the ability to obtain continuous observational coverage of objects which would be interrupted by daylight or weather at single-site observatories.
To demonstrate this capability, even with only the few telescopes to which we had access at the time, in March of 2007, we conducted the first LCOGT networked observations with FTN and FTS, along with the McDonald Observatory 30-inch Telescope and the Tenagra Observatories 32-inch Telescope. We present results from our campaign to observe known and candidate RR Lyrae stars in the Sextans dwarf spheroidal galaxy. Since most variables of this class display periods between 0.55 and 0.65 days, our aim was to produce time series observations from the 4 observatories with sufficient coverage to confirm candidates. Measuring the periods of these stars and their magnitudes at minimum light can provide a distance measurement to the galaxy with which they are associated.
Although weather prevented a continuous light curve from all telescopes on one night, access to the four telescopes provided sufficient phase coverage of the candidates in far fewer nights than would have been possible on one telescope alone.
Baliber Nairn
Hidas Marton G.
Norbury Martin
Siegel Michael Hiram
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