9,130 research outputs found

    Study of an advanced transport airplane design concept known as Flatbed

    Get PDF
    The design concept and configuration of the Flatbed transport aircraft are presented. The Flatbed configuration combines into one frame, the ability to haul cargo, virtually unrestrained by cross sectional dimensions of the fuselage. The feasibility and capability of the Flatbed is discussed in depth

    Spectrophotometry of nearby field galaxies: the data

    Get PDF
    We have obtained integrated and nuclear spectra, as well as U, B, R surface photometry, for a representative sample of 196 nearby galaxies. These galaxies span the entire Hubble sequence in morphological type, as well as a wide range of luminosities (M_B=-14 to -22). Here we present the spectrophotometry for these galaxies. The selection of the sample and the U, B, R surface photometry is described in a companion paper (Paper I). Our goals for the project include measuring the current star formation rates and metallicities of these galaxies, and elucidating their star formation histories, as a function of luminosity and morphology. We thereby extend the work of Kennicutt (1992a) to lower luminosity systems. We anticipate that our study will be useful as a benchmark for studies of galaxies at high redshift. We describe the observing, data reduction and calibration techniques, and demonstrate that our spectrophotometry agrees well with that of Kennicutt. The spectra span the range 3550--7250 A at a resolution (FWHM) of ~6 A, and have an overall relative spectrophotometric accuracy of +/- 6 per cent. We present a spectrophotometric atlas of integrated and nuclear rest-frame spectra, as well as tables of equivalent widths and synthetic colors. We study the correlations of galaxy properties determined from the spectra and images. Our findings include: (1) galaxies of a given morphological class display a wide range of continuum shapes and emission line strengths if a broad range of luminosities are considered, (2) emission line strengths tend to in- crease and continua tend to get bluer as the luminosity decreases, and (3) the scatter on the general correlation between nuclear and integrated H_alpha emission line strengths is large.Comment: Accepted for publication in ApJS (scheduled for Vol.127, 2000 March); 63 pages, LateX, 9 figures and 6 tables included, a spectrophotometric atlas is provided as GIF images, fig 1 as a JPEG image, in a single tar-file; a full 600 dpi version is available at http://www.astro.rug.nl/~nfgs

    The Lantern, Chester S.C.- October 15, 1909

    Get PDF
    The collection consists of individual issues of The Lantern a newspaper printed in Chester, South Carolina from 1897 until 1913. The editor was J. T. Bigham. This issue, scanned from microfilm, is date October 15, 1909 (volume XIII, number 2)https://digitalcommons.winthrop.edu/chesterlantern1909/1084/thumbnail.jp

    The Lantern, Chester S.C.- July 6, 1909

    Get PDF
    The collection consists of individual issues of The Lantern a newspaper printed in Chester, South Carolina from 1897 until 1913. The editor was J. T. Bigham. This issue, scanned from microfilm, is date July 6, 1909 (volume XII, number 78)https://digitalcommons.winthrop.edu/chesterlantern1909/1055/thumbnail.jp

    The Lantern, Chester S.C.- March 19, 1909

    Get PDF
    The collection consists of individual issues of The Lantern a newspaper printed in Chester, South Carolina from 1897 until 1913. The editor was J. T. Bigham. This issue, scanned from microfilm, is date March 19, 1909 (volume XII, number 47)https://digitalcommons.winthrop.edu/chesterlantern1909/1023/thumbnail.jp

    The Lantern, Chester S.C.- December 18, 1908

    Get PDF
    The collection consists of individual issues of The Lantern a newspaper printed in Chester, South Carolina from 1897 until 1913. The editor was J. T. Bigham. This issue, scanned from microfilm, is date December 18, 1908 (volume XII, number 21)https://digitalcommons.winthrop.edu/chesterlantern1908/1097/thumbnail.jp

    The Lantern, Chester S.C.- August 24, 1909

    Get PDF
    The collection consists of individual issues of The Lantern a newspaper printed in Chester, South Carolina from 1897 until 1913. The editor was J. T. Bigham. This issue, scanned from microfilm, is date August 24, 1909 (volume XII, number 92)https://digitalcommons.winthrop.edu/chesterlantern1909/1069/thumbnail.jp

    The Lantern, Chester S.C.- December 14, 1909

    Get PDF
    The collection consists of individual issues of The Lantern a newspaper printed in Chester, South Carolina from 1897 until 1913. The editor was J. T. Bigham. This issue, scanned from microfilm, is date December 14, 1909 (volume XIII, number 19)https://digitalcommons.winthrop.edu/chesterlantern1909/1101/thumbnail.jp

    The Lantern, Chester S.C.- November 23, 1909

    Get PDF
    The collection consists of individual issues of The Lantern a newspaper printed in Chester, South Carolina from 1897 until 1913. The editor was J. T. Bigham. This issue, scanned from microfilm, is date November 23, 1909 (volume XIII, number 13)https://digitalcommons.winthrop.edu/chesterlantern1909/1095/thumbnail.jp

    The Lantern, Chester S.C.- October 19, 1909

    Get PDF
    The collection consists of individual issues of The Lantern a newspaper printed in Chester, South Carolina from 1897 until 1913. The editor was J. T. Bigham. This issue, scanned from microfilm, is date October 19, 1909 (volume XIII, number 3)https://digitalcommons.winthrop.edu/chesterlantern1909/1085/thumbnail.jp
    corecore