5,019 research outputs found
GMRT observations of X-shaped radio sources
We present results from a study of X-shaped sources based on observations
using the Giant Metrewave Radio Telescope (GMRT). These observations were
motivated by our low frequency study of 3C 223.1 (Lal & Rao 2005), an X-shaped
radio source, which showed that the wings (or low-surface-brightness jets) have
flatter spectral indices than the active lobes (or high-surface-brightness
jets), a result not easily explained by most models. We have now obtained GMRT
data at 240 and 610 MHz for almost all the known X-shaped radio sources and
have studied the distribution of the spectral index across the sources. While
the radio morphologies of all the sources at 240 and 610 MHz show the
characteristic X-shape, the spectral characteristics of the X-shaped radio
sources, seem to fall into three categories, namely, sources in which (A) the
wings have flatter spectral indices than the active lobes, (B) the wings and
the active lobes have comparable spectral indices, and (C) the wings have
steeper spectral indices than the active lobes. We discuss the implications of
the new observational results on the various formation models that have been
proposed for X-shaped sources.Comment: The paper contains 12 figures and 3 tables, accepted for publication
in MNRAS Main Journal, please note, some figures are of lower qualit
Political life writing in the Pacific
This book aims to reflect on the experiential side of writing political lives in the Pacific region. The collection touches on aspects of the life writing art that are particularly pertinent to political figures: public perception and ideology; identifying important political successes and policy initiatives; grappling with issues like corruption and age-old political science questions about leadership and âdirty handsâ. These are general themes but they take on a particular significance in the Pacific context and so the contributions explore these themes in relation to patterns of colonisation and the memory of independence; issues elliptically captured by terms like âcultureâ and âtraditionâ; the nature of âselfâ presented in Pacific life writing; and the tendency for many of these texts to be written by âoutsidersâ, or at least the increasingly contested nature of what that term means
Turnings Fiji Factions
Through Dr Lalâs refreshingly clear and powerful prose and sharply observed stories, we enter the inner world of Indo-Fijian feeling and aspiration. One universal that emerges with particular clarity in the Indo-Fijian experience is the ceaseless struggle to find community in a changing world, balancing the beauty of ritual and tradition against the transcendent value of education and modern rationality. The volume poses the question of how people draw upon historical memory and immediate circumstances to create a social world, and how that world can be shared with others in multicultural society. The answer seems to lie somewhere between history and poetry, as in Dr Lalâs âfactions.â Andrew Arno
University of Hawaii
at Manoa, Honolul
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