812 research outputs found

    Alien Registration- Carrigan, Rose (Portland, Cumberland County)

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    https://digitalmaine.com/alien_docs/24292/thumbnail.jp

    Reconsidering the "Royal Savage"

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    The 1770s was a formative decade for the United States, most famously for the declaration of the colonies’ independence from Great Britain, but this era also saw the formation of the nation’s first navy. At the forefront of this was a small, ragtag, squadron on Lake Champlain led by a two-masted schooner, Royal Savage, with none other than Benedict Arnold, the famous traitor, in command. Royal Savage’s contribution to United States history, and to the field of Nautical Archeology, was not limited to this service, however. After sinking during the Battle of Valcour Island on 11 October 1776, the wreck was subjected to over a century and a half of looting and tampering by residents of the Champlain Valley until it was raised in 1934 by a salvor named Lorenzo F. Hagglund. The remains then suffered an additional eighty years without conservation before finally being returned to the U. S. Navy’s Naval History and Heritage Command (NHHC) in 2015, where they are currently being conserved. Because of this long and complicated history, Royal Savage has a great deal to offer nautical archaeologists, not only as an interesting historical specimen, but as a case study for managing and extracting information from wrecks that are no longer in their original context. The following thesis traces Royal Savage’s journey from her role as the first American flagship, through her tenure on the bottom of Lake Champlain and her initial recovery, all the way up to her condition at the time of this writing, through the lens of the people that interacted with her along the way. This was accomplished by reading original correspondence and contemporary newspapers, made available by the Lake Champlain Maritime Museum (LCMM), as well as interacting with the remains themselves during an internship at the NHHC. The resulting work is a comprehensive, though concise, record of Royal Savage and the people who have interacted with her

    Reconsidering the "Royal Savage"

    Get PDF
    The 1770s was a formative decade for the United States, most famously for the declaration of the colonies’ independence from Great Britain, but this era also saw the formation of the nation’s first navy. At the forefront of this was a small, ragtag, squadron on Lake Champlain led by a two-masted schooner, Royal Savage, with none other than Benedict Arnold, the famous traitor, in command. Royal Savage’s contribution to United States history, and to the field of Nautical Archeology, was not limited to this service, however. After sinking during the Battle of Valcour Island on 11 October 1776, the wreck was subjected to over a century and a half of looting and tampering by residents of the Champlain Valley until it was raised in 1934 by a salvor named Lorenzo F. Hagglund. The remains then suffered an additional eighty years without conservation before finally being returned to the U. S. Navy’s Naval History and Heritage Command (NHHC) in 2015, where they are currently being conserved. Because of this long and complicated history, Royal Savage has a great deal to offer nautical archaeologists, not only as an interesting historical specimen, but as a case study for managing and extracting information from wrecks that are no longer in their original context. The following thesis traces Royal Savage’s journey from her role as the first American flagship, through her tenure on the bottom of Lake Champlain and her initial recovery, all the way up to her condition at the time of this writing, through the lens of the people that interacted with her along the way. This was accomplished by reading original correspondence and contemporary newspapers, made available by the Lake Champlain Maritime Museum (LCMM), as well as interacting with the remains themselves during an internship at the NHHC. The resulting work is a comprehensive, though concise, record of Royal Savage and the people who have interacted with her

    The Discovery of gamma-Ray Emission From The Blazar RGB J0710+591

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    The high-frequency-peaked BL Lacertae object RGB J0710+591 was observed in the very high-energy (VHE; E > 100 GeV) wave band by the VERITAS array of atmospheric Cherenkov telescopes. The observations, taken between 2008 December and 2009 March and totaling 22.1 hr, yield the discovery of VHE gamma rays from the source. RGB J0710+591 is detected at a statistical significance of 5.5 standard deviations (5.5{\sigma}) above the background, corresponding to an integral flux of (3.9 +/- 0.8) x 10-12 cm-2 s-1 (3% of the Crab Nebula's flux) above 300 GeV. The observed spectrum can be fit by a power law from 0.31 to 4.6 TeV with a photon spectral index of 2.69 +/- 0.26stat +/- 0.20sys. These data are complemented by contemporaneous multiwavelength data from the Fermi Large Area Telescope, the Swift X-ray Telescope, the Swift Ultra-Violet and Optical Telescope, and the Michigan-Dartmouth-MIT observatory. Modeling the broadband spectral energy distribution (SED) with an equilibrium synchrotron self-Compton model yields a good statistical fit to the data. The addition of an external-Compton component to the model does not improve the fit nor brings the system closer to equipartition. The combined Fermi and VERITAS data constrain the properties of the high-energy emission component of the source over 4 orders of magnitude and give measurements of the rising and falling sections of the SED

    The 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87

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    Abridged: The giant radio galaxy M 87 with its proximity, famous jet, and very massive black hole provides a unique opportunity to investigate the origin of very high energy (VHE; E>100 GeV) gamma-ray emission generated in relativistic outflows and the surroundings of super-massive black holes. M 87 has been established as a VHE gamma-ray emitter since 2006. The VHE gamma-ray emission displays strong variability on timescales as short as a day. In this paper, results from a joint VHE monitoring campaign on M 87 by the MAGIC and VERITAS instruments in 2010 are reported. During the campaign, a flare at VHE was detected triggering further observations at VHE (H.E.S.S.), X-rays (Chandra), and radio (43 GHz VLBA). The excellent sampling of the VHE gamma-ray light curve enables one to derive a precise temporal characterization of the flare: the single, isolated flare is well described by a two-sided exponential function with significantly different flux rise and decay times. While the overall variability pattern of the 2010 flare appears somewhat different from that of previous VHE flares in 2005 and 2008, they share very similar timescales (~day), peak fluxes (Phi(>0.35 TeV) ~= (1-3) x 10^-11 ph cm^-2 s^-1), and VHE spectra. 43 GHz VLBA radio observations of the inner jet regions indicate no enhanced flux in 2010 in contrast to observations in 2008, where an increase of the radio flux of the innermost core regions coincided with a VHE flare. On the other hand, Chandra X-ray observations taken ~3 days after the peak of the VHE gamma-ray emission reveal an enhanced flux from the core. The long-term (2001-2010) multi-wavelength light curve of M 87, spanning from radio to VHE and including data from HST, LT, VLA and EVN, is used to further investigate the origin of the VHE gamma-ray emission. No unique, common MWL signature of the three VHE flares has been identified.Comment: 19 pages, 5 figures; Corresponding authors: M. Raue, L. Stawarz, D. Mazin, P. Colin, C. M. Hui, M. Beilicke; Fig. 1 lightcurve data available online: http://www.desy.de/~mraue/m87

    Measurement of the B0^{0}s_{s} → ÎŒ+^{+} Ό−^{-} decay properties and search for the B0^{0} → ÎŒ+^{+}Ό−^{-} decay in proton-proton collisions at √s = 13 TeV

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    Search for top squarks in the four-body decay mode with single lepton final states in proton-proton collisions at s \sqrt{s} = 13 TeV

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    A search for the pair production of the lightest supersymmetric partner of the top quark, the top squark (t∌1), is presented. The search targets the four-body decay of the t∌1, which is preferred when the mass difference between the top squark and the lightest supersymmetric particle is smaller than the mass of the W boson. This decay mode consists of a bottom quark, two other fermions, and the lightest neutralino (χ∌01), which is assumed to be the lightest supersymmetric particle. The data correspond to an integrated luminosity of 138 fb−1 of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment at the CERN LHC. Events are selected using the presence of a high-momentum jet, an electron or muon with low transverse momentum, and a significant missing transverse momentum. The signal is selected based on a multivariate approach that is optimized for the difference between m(t∌1) and m(χ∌01). The contribution from leading background processes is estimated from data. No significant excess is observed above the expectation from standard model processes. The results of this search exclude top squarks at 95% confidence level for masses up to 480 and 700 GeV for m(t∌1) − m(χ∌01) = 10 and 80 GeV, respectively

    Measurement of the cross section of top quark-antiquark pair production in association with a W boson in proton-proton collisions at s \sqrt{s} = 13 TeV

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    The production of a top quark-antiquark pair in association with a W boson (ttˉW)(t\bar{t}W) is measured in proton-proton collisions at a center-of-mass energy of 13 TeV. The analyzed data was recorded by the CMS experiment at the CERN LHC and corresponds to an integrated luminosity of 138 fb−1^{−1}. Events with two or three leptons (electrons and muons) and additional jets are selected. In events with two leptons, a multiclass neural network is used to distinguish between the signal and background processes. Events with three leptons are categorized based on the number of jets and of jets originating from b quark hadronization, and the lepton charges. The inclusive (ttˉW)(t\bar{t}W) production cross section in the full phase space is measured to be 868 ± 40(stat) ± 51(syst) fb. The (ttˉW)+(t\bar{t}W)+ and (ttˉW)−(t\bar{t}W)− cross sections are also measured as 553 ± 30(stat) ± 30(syst) and 343 ± 26(stat) ± 25(syst) fb, respectively, and the corresponding ratio of the two cross sections is found to be 1.61±0.15(stat)−0.05+0.07^{+0.07}_{−0.05}(syst). The measured cross sections are larger than but consistent with the standard model predictions within two standard deviations, and represent the most precise measurement of these cross sections to date

    Measurement of the Dependence of the Hadron Production Fraction Ratios fs/fuf_s / f_u and fd/fuf_d / f_u on BB Meson Kinematic Variables in Proton-Proton Collisions at s=13TeV\sqrt{s} = 13 TeV

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    The dependence of the ratio between the Bs0B^0_s and B+B^+ hadron production fractions, fs/fuf_s/f_u, on the transverse momentum (pT)(p_T) and rapidity of the BB mesons is studied using the decay channels Bs0→J/ψϕB^0_s→J/ψϕ and B+→J/ψK+B^+→J/ψK^+. The analysis uses a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment in 2018 and corresponding to an integrated luminosity of 61.6  fb−161.6  fb^{−1}. The fs/fuf_s/f_u ratio is observed to depend on the BB pTp_T and to be consistent with becoming asymptotically constant at large pTp_T. No rapidity dependence is observed. The ratio of the B0B^0 to B+B^+ meson production fractions, fd/fuf_d/f_u, is also measured, for the first time in proton-proton collisions, using the B0→J/ψK∗0B^0→J/ψK^{*0} decay channel. The result is found to be within 1 standard deviation of unity and independent of pTpT and rapidity, as expected from isospin invariance
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