Calibration of an astrophysical spectrograph below 1 m/s using a laser frequency comb.
نویسندگان
چکیده
We deployed two wavelength calibrators based on laser frequency combs ("astro-combs") at an astronomical telescope. One astro-comb operated over a 100 nm band in the deep red (∼ 800 nm) and a second operated over a 20 nm band in the blue (∼ 400 nm). We used these red and blue astro-combs to calibrate a high-resolution astrophysical spectrograph integrated with a 1.5 m telescope, and demonstrated calibration precision and stability sufficient to enable detection of changes in stellar radial velocity < 1 m/s.
منابع مشابه
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ورودعنوان ژورنال:
- Optics express
دوره 20 13 شماره
صفحات -
تاریخ انتشار 2012