Palomar Testbed Interferometer

Details Palomar Testbed Interferometer Palomar Testbed Interferometer

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3350..864w&link_type=abstract

Proc. SPIE Vol. 3350, p. 864-871, Astronomical Interferometry, Robert D. Reasenberg; Ed.

Computer Science

Performance

6

Scientific paper

The Palomar Testbed Interferometer is an IR, phase-tracking interferometer in operation at Palomar Mountain since July 1995. It was funded by NASA for the purpose of developing techniques and methodologies for doing narrow-angle astrometry for the purpose of detecting extrasolar planets. The instrument employs active fringe tracking in the IR to monitor fringe phase. It is a dual-star interferometer; it is able to measure fringes on two separate stars simultaneously. An end-to-end heterodyne laser metrology system is used to monitor the optical path length of the starlight. Recently completed engineering upgrades have improved the initial instrument performance. These upgrades are: extended wavelength coverage, a single mode fiber for spatial filtering, vacuum pipes to relay the beams, accelerometers on the siderostat mirrors and a new baseline. Results of recent astrometry data indicate the instrument is approaching the astrometric limit as set by the atmosphere.

Affiliated with

Also associated with

No associations

Rating

Palomar Testbed Interferometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Palomar Testbed Interferometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Palomar Testbed Interferometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1175859