Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725410f&link_type=abstract
American Astronomical Society, AAS Meeting #217, #254.10; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The Far-Ultraviolet Off-Rowland Telescope for Imaging and Spectroscopy (FORTIS) is a rocket-borne spectro-telescope designed to investigate Lyman alpha (Lya) escape from nearby star-forming galaxies and to quantify its relationship to the local gas-to-dust ratio. By operating in the 900 - 1700 Angstrom bandpass and incorporating a GSFC microshutter array at the prime focus, the FORTIS instrument enables simultaneous observations of both Lya and the far-UV continuum of the brightest HII regions of low redshift starforming galaxies. Ancillary ground-based optical spectroscopy of the target will provide the necessary Balmer line measurements to calculate the Lya escape fractions (Fleming et al. 2010). We present the optical design and capabilities of the FORTIS instrument, the first flight of which is currently scheduled for April of 2011 to observe the galaxy cluster Abell 1367.
Feldman Paul D.
Fleming Brian
Kaiser Mary Elizabeth
Kruk Jeffrey
Kutyrev Alexander S.
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