246 research outputs found
Letter from Lyman C. Draper to James B. Finley
No full textDraper indicates that he is going to write a book about Capt. Samuel Brady and the pioneers of upper Ohio. He would like to have a copy of Finley\u27s book History of the Wyandot Mission, and asks Finley to send him one if possible. Abstract Number - 787https://digitalcommons.owu.edu/finley-letters/2293/thumbnail.jp
Uddrag af den tiende Aarsberetning fra Superintendenten for det offentlige Skole- og Underviisningsvæsen i Staten Wisconsin for Aaret 1858.
No full textLyman C. Draper, Superintendent.Abstract of Tenth annual report on the condition and improvement of the common schools and educational interests of the state of Wisconsin for the year 1858.Mode of access: Internet
Lyman break galaxies and the star formation rate of the Universe at z ~ 6
No full textWe determine the space density of UV-luminous starburst galaxies at z≈ 6 using deep HST ACS SDSS-i′ (F775W) and SDSS-z′ (F850LP) and VLT ISAAC J and Ks band imaging of the Chandra Deep Field South. We find eight galaxies and one star with (i′−z′) > 1.5 to a depth of z′AB= 25.6 (an 8σ detection in each of the 3 available ACS epochs). This corresponds to an unobscured star formation rate of ≈15 h−270 M⊙ yr−1 at z= 5.9, equivalent to L* for the Lyman-break population at z= 3–4 (ΩΛ= 0.7, ΩM= 0.3). We are sensitive to star-forming galaxies at 5.6 ≲z≲ 7.0 with an effective comoving volume of ≈1.8 × 105h−370 Mpc3 after accounting for incompleteness at the higher redshifts due to luminosity bias. This volume should encompass the primeval subgalactic-scale fragments of the progenitors of about a thousand L* galaxies at the current epoch. We determine a volume-averaged global star formation rate of (6.7 ± 2.7) × 10−4h70 M⊙ yr−1 Mpc−3 at z∼ 6 from rest-frame UV selected starbursts at the bright end of the luminosity function: this is a lower limit because of dust obscuration and galaxies below our sensitivity limit. This measurement shows that at z∼ 6 the star formation density at the bright end is a factor of ∼6 times less than that determined by Steidel et al. for a comparable sample of UV-selected galaxies at z= 3–4, and so extends our knowledge of the star formation history of the Universe to earlier times than previous work and into the epoch where reionization may have occurred
0072: Draper Manuscript Collection, 1838-1891
No full textThe Draper manuscripts are composed of many thousands of items in 486 volumes. They relate chiefly to the area between the Mississippi River on the west and the Hudson River and the Atlantic Ocean on the east, especially the frontier region during the period 1755-1815, and consist of original papers collected by Lyman C. Draper and transcripts and notes made by him. Included are Draper’s partially completed life of Daniel Boone, and his unpublished histories of Border Forays and Mecklenburg Declarations . There are series of papers of or relating to Daniel Boone, Joseph Brant, David Brodhead, George Rogers Clark, William Clark, Thomas Forsyth, Josiah Harmar, William Irvine, Simon Kenton, William Preston, Thomas Sumter and Tecumseh. Other series bear the names of the following events or areas: Frontier Wars, Kentucky, Kings Mountain, Pittsburgh and Northern Virginia, Tennessee, and Virginia.(This description was adapted from Philip M. Hamer’s A Guide to the Archives and Manuscripts in the United States. New Haven: Yale University Press, 1961, p. 631.
Discovery of a single faint AGN in a large sample of z > 5 Lyman break galaxies
No full textAs part of a large spectroscopic survey of z > 5 Lyman break galaxies (LBGs), we have identified a single source which is clearly hosting an active galactic nucleus (AGN). Out of a sample of more than 50 spectroscopically confirmed R-band dropout galaxies at z∼ 5 and above, only J104048.6−115550.2 at z= 5.44 shows evidence for a high ionization potential emission line indicating the presence of a hard ionizing continuum from an AGN. Like most objects in our sample the rest-frame-UV spectrum shows the UV continuum breaking across a Lyα line. Uniquely within this sample of LBGs, emission from N V is also detected, a clear signature of AGN photoionization. The object is spatially resolved in Hubble Space Telescope (HST) imaging. This, and the comparatively high Lyα/N V flux ratio indicates that the majority of the Lyα (and the UV continuum longward of it) originates from stellar photoionization, a product of the ongoing starburst in the LBG. Even without the AGN emission, this object would have been photometrically selected and spectroscopically confirmed as a Lyman break in our survey. The measured optical flux (IAB= 26.1) is therefore an upper limit to that from the AGN and is of order 100 times fainter than the majority of known quasars at these redshifts. The detection of a single object in our survey volume is consistent with the best current models of high redshift AGN luminosity function, providing a substantial fraction of such AGN is found within luminous starbursting galaxies. We discuss the cosmological implications of this discovery
Polygamy on the Pedernales: Lyman Wight\u27s Mormon Villages in Antebellum Texas, 1845 to 1858
No full textPolygamy on the Pedernales is about the Mormon settlements in Texas during the 1840s and 1850s, whose primary allegiance was to Lyman Wight. Christened the Wild Ram of the Mountains by the New York Sun, Wight was ordained an Apostle by Joseph Smith in 1841. Because he was charismatic, intensely personal, and often domineering in his dealings with others, writes author Melvin C. Johnson, the Wild Ram became influential with Joseph Smith. Wight\u27s group broke with Brigham Young and the Quorum of the Twelve, and they pursued Wight\u27s vision of a Latter-day Saint safe haven in Texas, which Wight believed was commanded by Smith.
Born in 1796, Wight served in the War of 1812, married Harriet Benton Wight, and settled in frontier Ohio by 1826. Lyman and Harriet joined Sydney Rigdon\u27s Campbellite community in 1829, where Lyman became passionately converted to New Testament Christian primitivism and common-stock economic communalism. He was part of a large body of Rigdon\u27s followers who converted to the LDS faith when missionaries arrived
Dayside and nightside reconnection rates inferred from IMAGE FUV and Super Dual Auroral Radar Network data
No full textpeer reviewedThe spectrographic imager at 121.8 nm ( SI12) of the far ultraviolet ( FUV) experiment onboard the IMAGE spacecraft produces global images of the Doppler- shifted Lyman alpha emission of the proton aurora. This emission is solely due to proton precipitation and is not contaminated by dayglow, allowing us to monitor the auroral oval on the dayside as well as on the nightside. Remote sensing of the polar aurora can be advantageously supplemented by use of ground- based data from the Super Dual Auroral Radar Network ( SuperDARN) that monitors the ionospheric convective flow pattern in the polar region. In the present study, the SI12 images are used to determine the location of the open/ closed field line boundary and to monitor its movement. The SuperDARN data are then used to compute the ionospheric electric field at the location of the open/ closed boundary. The total electric field is then computed along the boundary accounting for its movement via Faraday's law so that the dayside and nightside reconnection voltages can be derived. This procedure is applied to several substorm intervals observed simultaneously with IMAGE FUV and SuperDARN. The dayside reconnection voltage feeds the magnetosphere with open flux, which is later closed by nightside reconnection. The calculated dayside reconnection rate is consistent with the solar wind properties measured by the Geotail, Wind, and ACE satellites. We identify the presence of nightside reconnection due to pseudobreakups taking place during the growth phase. In several cases, we establish that the nightside reconnection rate is maximum at the time of the substorm expansion phase onset or shortly after, reaching similar to 120 kV, and then slowly returns to undisturbed values of similar to 30 kV. The flux closure rate can also start intensifying prior to expansion phase onset, producing pseudobreakups
Kings Mountain and Its Heroes: History of the Battle of Kings Mountain
No full textSeries 1.5.2 - Fay Webb Gardner; Desk Contents; Genealogical Research & Notes
Contents of Series 1.5 are items from Fay Webb Gardner\u27s personal desk at her home in Shelby, NC at the time of her death on January 16, 1969.
Publication about the Battle of Kings Mountain (October 7, 1780). Imprint indicates that this was first published in 1881 and reprinted in 1967. Notation by Fay Webb Gardner at the top of the first page indicates that Samuel Andrews served in the patriot forces during the battle.https://digitalcommons.gardner-webb.edu/fay-webb-gardner-desk-contents/1002/thumbnail.jp
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