The Large Lenslet Array Magellan Spectrograph (LLAMAS) is a facility-class Integral Field Spectrograph slated for commissioning on the 6.5-meter Magellan Baade telescope in Fall 2022. LLAMAS' Integral Field Unit (IFU) contains a 2400-element microlens array which projects pupil images onto corresponding optical fibers for high fill factor and illumination stability. The IFU subtends a 34" x 34" sky area sampled at 0.75" pitch with ~95% fill. The fibers fan out to eight replicated spectrometers. Each spectrometer covers 350-980nm per exposure at R=2200, split over three separately optimized wavelength channels. A set of 24 thermo-electrically cooled COTS CCD cameras records data for each exposure, with heat loads transferred to a dedicated chilled water loop. We provide a status update on LLAMAS' integration and test, which is in advanced stages. Upon commissioning, LLAMAS will be available to all Magellan users,
and any US investigator through NOIRLab allocation of NSF/MSIP nights.
We describe an implementation of a broad-band soft X-ray polarimeter, substantially based on previous designs. The Globe-Orbiting Soft X-ray Polarimeter (GOSoX) is a SmallSat. As in a related mission concept the PiSoX Polarimeter, the grating arrangement is designed optimally for the purpose of polarimetry matching the dispersion of a spectrometer to a laterally graded multilayer (LGML). For GOSoX, the optics are lightweight Si mirrors in a one-bounce parabolic configuration. The instrument covers the wavelength range from 31 A to 75 A (165 - 400 eV). Upon satellite rotation, the intensities of the dispersed spectra, after reflection and polarizing by the LGMLs, give the three Stokes parameters needed to determine a source's linear polarization fraction and orientation. The design can be extended to higher energies as LGMLs are developed further. We describe the potential scientific return and the proposed mission concept following the results of a JPL Team X concept study.
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