A sample of objects to K = 24 mag is constructed and V 606 - I 814 and I 814 - K colors are measured. Using Keck Observatory’s AO system with the Near-Infrared Camera, second generation (NIRC2) instrument on the Keck II telescope, Chen and his team obtained local measurements of three well-known lensed quasar systems: PG1115+ 080, HE0435-1223, and RXJ1131-1231. The W. M. Keck Observatory is a two-telescope astronomical observatory at an elevation of 4,145 meters (13,600 ft) near the summit of Mauna Kea in the U.S. state of Hawaii.Both telescopes have 10 m (33 ft) aperture primary mirrors, and when completed in 1993 (Keck 1) and 1996 (Keck 2) were the largest astronomical telescopes in the world.

Section 2 describes our observations and extraction of the disk images.

Using deep HST ACS SDSS i' (F775W) and SDSS z' (F850LP) imaging from the Great Observatories Origins Deep Survey-North (GOODS-N 200 arcmin 2 >), we identify nine i'-drops … The Keck telescope is located on Mauna Kea in Hawaii and operated by CARA (California Association for Research in Astronomy). Note the location of the telescope optical axis relative to the field of view used. We present early-time Keck spectroscopic observations and late-time Hubble Space Telescope (HST) imaging of GRB 000926. Figure 1. The layout includes fiber optic components, dichroic, and blue camera components which are not yet built or planned. Contact: Dr. Imke de Pater 510-642-1947 Keck Telescope Observations Plans.

Using speckle imaging techniques on the 10-m W.M.

Keck Image of Fragment A & C Impacts (July 17, 1994).

It provides the capability of acquiring low resolution (R equals 1000 to 5000) digital spectra, as well as 6 X 8 arc-minute moderately high spatial resolution (4.65 pixels/arc-second) direct images. The design and implementation of … Spectroscopy can be carried out with single slits which are 3 arc-minutes long. In November 2008, a group of astronomers using the Keck telescopes announced the imaging of 3 planets orbiting the star HR 8799. We measure the surface density of i'-band dropout galaxies at z~6 through wide-field Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) imaging and ultradeep Keck DEIMOS spectroscopy. Spectroscopy can be carried out with single slits which are 3 arc-minutes long. Keck Observatory | An optical-wavelength polarimetry module has been in use for the past ten years at the W.M. Near-infrared images of Neptune were taken with SCAM, the slit-viewing camera of the AO/NIRSPEC system at the 10-m W.M. The HST images show a small offset between the optical transient and a bright, compact knot in the host galaxy. The Low Resolution Imaging Spectrometer is designed for use at the Cassegrain focus of the Keck 10-m telescope. The Low Resolution Imaging Spectrometer is designed for use at the Cassegrain focus of the Keck 10-m telescope. Images. Keck LIS Schematic Optical Layout.