The Morphology of 9 Radio-selected Faint Galaxies from deep HST Imaging

Using the HST WFPC2 we perform deep I-band imaging of 9 radio-selected (limit 14 microJanskys at 8.5 GHz) faint galaxies from Roche, Lowenthal and Koo (2002). Two are also observed in V. Six of the galaxies have known redshifs of 0.4<z<1.0. Radial intensity profiles indicate that 7 are disk galaxies and 2 are bulge-dominated. Four of the six with redshifts have a high optical surface brightness compared to typical disk galaxies. Two of the 9 galaxies are in close interacting pairs, another two are very asymmetric and three have large, luminous rings resembling the collisional starburst rings in the Cartwheel galaxy. In most of these galaxies the high radio luminosities are probably the result of interaction-triggered starbursts. The mixture of observed morphologies suggests that enhanced radio luminosities often persist for >0.2 Gyr, to a late stage of the interaction. One of these 9 galaxies may be an exception in that it is a large red elliptical and its strong radio emission is more likely to be from an obscured AGN.Comment: 12 pages, latex, 8 figures, accepted for publication in MNRA

The Pioneer Landscape: An American Dream

To speak of pioneers, of the pioneer character, of the pioneer spirit, instantly brings vivid impressi~ns to mind. But what and where is the pioneer landscape? No more elusive or evanescent place exists. The pioneer landscape appears here, there, almost everywhere, for only a moment early in the chronicle of any locale; then it vanishes, never to return. Only once in its history is a place a pioneer country. Other pioneering efforts may follow-the extraction of some hitherto unknown or unusable resource, the creation of some new social orderbut these efforts do not occur in pioneer landscapes or circumstances. Lindbergh pioneered in a complex machine produced by a team of experts and funded by big business. The whole world celebrated Lindy for doing it alone, but the flight was not the heroic lone success of a single daring individual, as John W. Ward has said, but the climax of the cooperative effort of an elaborately interlocked technology. The landscapes we mainly pioneer today are those of tourism, the fastest moving modern frontier after Dutch elm disease. Cleveland Amory\u27s The Last Resorts sets forth a Turnerian process of replacement-a sort of Gresham\u27s Law of intellectual pioneers followed by good and then bad millionaires. And some natives fear that England is fated to end up as a living museum for the delectation of American visitors- visitors as eager to see the lineaments of their remote European past as of their pioneer American heritage. But there is still a long way to go before tourist pioneers resettle the whole world. As the beginnings of settlement recede into the past, ever fewer people survive who have experienced actual pioneer landscapes. This helps to account for the present popularity of those landscapes. We increasingly hark back to a past we ourselves have never known, one more imagined than real. The romance of pioneering suits our wistful longing for ways of life so briefly and variously experienced that we invest them with whatever forms we choose. This longing brings us full circle from the original pioneers\u27 nostalgia for their previous homelands, celebrated in scores of doleful ballads collected by Theodore Blegen and others. PIONEER SCENES IN MODERN DISPLAY The pioneer landscape is but one of many realms of modern nostalgia. Preserving and recreating historic areas that exemplify bygone epochs and ways of life is a particularly American mode of expression. During the fIrst third of this century, colonial homes and eastern seaboard villages captured the popular imagination, museum period rooms and restored Williamsburg being the best-known examples. These displays featured aristocratic elegance, avoiding the commonplace or the humble. Later rebirths involved more representative workaday communities: Ford\u27s GreenfIeld and Old Sturbridge Village, refurbished Victorian towns with old-fashioned Main Streets and cracker-barrel stores, and, more recently, antebellum slave quarters and nineteenth-century New England factories and mill towns. The bucolic landscapes of shaker and Amish and Mennonite communities; boom-town mining camps instantly settled, violently occupied, and quickly abandoned; fortresses, battlefIelds, and sites of famous historical episodes likewise have widespread appeal. Frontier and wilderness nostalgia are catered to in the national parks, in Hollywood Hlms, and in the rodeos and dude ranches of cowboy country that were popular resorts for effete easterners for almost a century. Facsimiles of all these historic locales converge in Disney World\u27s fabulous pastiche

Dynamics of Lyman Break Galaxies and Their Host Halos

We present deep two-dimensional spectra of 22 candidate and confirmed Lyman break galaxies (LBGs) at redshifts

Introduction: Going Public

The period in which the public history movement has developed has been one of considerable change. This has been a result of the passing of post-war generations, the effects wrought by continuing internal and external conflicts, the globalisation of economies, the emergence of new media forms and the major impact of the digital revolution. This has seen significant shifts in the transmission, reception and practice of history