1,620 research outputs found
Re-colonizing spaces of memorializing: the case of the Chattri Indian Memorial, UK
This article inspects the ways that spaces of war memorialization are organized and reorganized through official and unofficial meaning-making activities. It aims to contribute to the discussion of the âvalueâ of memorializing by examining a multifaceted space of remembrance and commemoration: the Chattri Indian Memorial built near Brighton, UK. The article brings postcolonial perspectives to explore how memorializing has been organized here, focusing on the activities of once-colonized people and the affective, embodied aspects of organizing practices. Built in 1921 to honour Indian soldiers who fought in WWI, the Chattri evolved from a colonial instrument to symbol and space for ethnic-Indian group activities. The study employed historical, visual and ethnographic methods to study the tangible monument and the changing nature of the memorializing activities carried out around the monument. Memorializing is conceptualized within three inter-related processes: colonizing, de-colonizing and re-colonizing to examine how forms and practices of memorialization constitute a values-laden organizing system
"From âWhat the hell is going on?â to the âMushy middle groundâ to âgetting used to a new normalâ: Young peopleâs biographical narratives around navigating parental dementia"
The number of young people who have a parent with dementia is rising as a result of improvements in diagnosis of young onset variants and demographic shifts. There has, however, been very little research focusing on this group. Accounts elicited as part of the Perceptions and Experiences of Young People With a Parent With Dementia described the period, usually some years, leading up to a diagnosis of a dementia and then the progress of the condition post diagnosis. These narratives were characterised by confusion, uncertainty, trauma and distress as the young people struggled to make sense of the significant and often extreme, behavioural and attitudinal changes that were symptoms of the illness. This paper describes and discusses how the young people experienced and navigated the temporal messiness and consequent biographical disruption arising from parental dementia
The disruption of nearby galaxies by the Milky Way
Interactions between galaxies are common and are an important factor in
determining their physical properties such as position along the Hubble
sequence and star-formation rate. There are many possible galaxy interaction
mechanisms, including merging, ram-pressure stripping, gas compression,
gravitational interaction and cluster tides. The relative importance of these
mechanisms is often not clear, as their strength depends on poorly known
parameters such as the density, extent and nature of the massive dark halos
that surround galaxies. A nearby example of a galaxy interaction where the
mechanism is controversial is that between our own Galaxy and two of its
neighbours -- the Large and Small Magellanic Clouds. Here we present the first
results of a new HI survey which provides a spectacular view of this
interaction. In addition to the previously known Magellanic Stream, which
trails 100 degrees behind the Clouds, the new data reveal a counter-stream
which lies in the opposite direction and leads the motion of the Clouds. This
result supports the gravitational model in which leading and trailing streams
are tidally torn from the body of the Magellanic Clouds.Comment: 17 pages with 5 figures in gif format, scheduled for publication in
the August 20th, 1998 issue of Natur
New Galaxies Discovered in the First Blind HI Survey of the Centaurus A Group
We have commenced a 21-cm survey of the entire southern sky (\delta < 0
degrees, -1200 km/s < v < 12700 km/s) which is ''blind'', i.e. unbiased by
previous optical information. In the present paper we report on the results of
a pilot project which is based on data from this all-sky survey. The project
was carried out on an area of 600 square degrees centred on the nearby
Centaurus A (Cen A) group of galaxies at a mean velocity of v ~ 500 km/s. This
was recently the subject of a separate and thorough optical survey.
We found 10 new group members to add to the 21 galaxies already known in the
Cen A group: five of these are previously uncatalogued galaxies, while five
were previously catalogued but not known to be associated with the group.
We found optical counterparts for all the HI detections, most of them
intrinsically very faint low surface brightness dwarfs. The new group members
add approximately 6% to the HI mass of the group and 4% to its light. The HI
mass function, derived from all the known group galaxies in the interval 10^7
\Msun of HI to 10^9 \Msun of HI, has a faint-end slope of 1.30 +/- 0.15,
allowing us to rule out a slope of 1.7 at 95% confidence. Even if the number in
the lowest mass bin is increased by 50%, the slope only increases to 1.45 +/-
0.15.Comment: 19 pages Latex, 6 figures (Fig. 2 in four parts, Fig.5 in two parts).
To appear in The Astrophysical Journal (Vol. 524, October 1999
HIPASS High-Velocity Clouds: Properties of the Compact and Extended Populations
A catalog of Southern anomalous-velocity HI clouds at Decl. < +2 deg is
presented, based on data from the HI Parkes All-Sky Survey (HIPASS). The
improved sensitivity (5sigma: T_B = 0.04 K) and resolution (15.5') of the
HIPASS data results in a substantial increase in the number of individual
clouds (1956, as well as 41 galaxies) compared to previous surveys. Most
high-velocity emission features, HVCs, have a filamentary morphology and are
loosely organized into large complexes extending over tens of degrees. In
addition, 179 compact and isolated anomalous-velocity objects, CHVCs, are
identified based on their size and degree of isolation. 25% of the CHVCs
originally classified by Braun & Burton (1999) are reclassified. Both the
entire population of high-velocity emission features and the CHVCs alone have
typical HI masses of ~ 4.5 D(kpc)^2 solar masses and have similar slopes for
their column density and flux distributions. On the other hand, the CHVCs
appear to be clustered and the population can be broken up into three spatially
distinct groups, while the entire population of clouds is more uniformly
distributed with a significant percentage aligned with the Magellanic Stream.
The median velocities are V_GSR = -38 km/s for the CHVCs and -30 km/s for all
of the anomalous-velocity clouds. Based on the catalog sizes, high-velocity
features cover 19% of the southern sky and CHVCs cover 1%. (abridged)Comment: 32 pages, 26 figures in gif format, 2 ascii tables, to appear in the
Jan 2002 issue of The Astronomical Journal, high resolution version available
at http://origins.Colorado.EDU/~mputman/pubs.htm
HIPASS Detection of an Intergalactic Gas Cloud in the NGC 2442 Group
We report the discovery, from the HI Parkes All-Sky Survey (HIPASS), of a gas
cloud associated with the asymmetric spiral galaxy NGC 2442. This object,
designated HIPASS J0731-69, contains ~10^9 M_sun of HI, or nearly one-third as
much atomic gas as NGC 2442 itself. No optical counterpart to any part of
HIPASS J0731-69 has yet been identified, consistent with the gas being diffuse,
and with its stream-like kinematics. If the gas in HIPASS J0731-69 was once
part of NGC 2442, then it was most likely a fairly recent tidal encounter with
a moderately massive companion which tore it loose, although the possibility of
ram-pressure stripping cannot be ruled out. This discovery highlights the
potential of the HIPASS data for yielding new clues to the nature of some of
the best-known galaxies in the local universe.Comment: 8 pages, 4 figures, uses "emulateapj5.sty". Accepted for publication
in ApJ, Vol. 555, 1 July 2001. Figs 1 and 2 included as JPE
An Extragalactic HI Cloud with No Optical Counterpart?
We report the discovery, from the HI Parkes All-Sky Survey (HIPASS), of an
isolated cloud of neutral hydrogen which we believe to be extragalactic. The HI
mass of the cloud (HIPASS J1712-64) is very low, 1.7 x 10^7 Msun, using an
estimated distance of ~3.2 Mpc. Most significantly, we have found no optical
companion to this object to very faint limits (mu(B)~ 27 mag arcsec^-2). HIPASS
J1712-64 appears to be a binary system similar to, but much less massive than,
HI 1225+01 (the Virgo HI Cloud) and has a size of at least 15 kpc. The mean
velocity dispersion, measured with the Australia Telescope Compact Array
(ATCA), is only 4 km/s for the main component and because of the weak or
non-existent star-formation, possibly reflects the thermal linewidth (T<2000 K)
rather than bulk motion or turbulence. The peak column density for HIPASS
J1712-64, from the combined Parkes and ATCA data, is only 3.5 x 10^19 cm^-2,
which is estimated to be a factor of two below the critical threshold for star
formation. Apart from its significantly higher velocity, the properties of
HIPASS J1712-64 are similar to the recently recognised class of Compact High
Velocity Clouds. We therefore consider the evidence for a Local Group or
Galactic origin, although a more plausible alternative is that HIPASS J1712-64
was ejected from the interacting Magellanic Cloud/Galaxy system at
perigalacticon ~ 2 x 10^8 yr ago.Comment: 23 pages, 7 figures, AJ accepte
The 1000 Brightest HIPASS Galaxies: HI Mass Function and Omega_HI
We present a new accurate measurement of the HI mass function of galaxies
from the HIPASS Bright Galaxy Catalog, a sample of 1000 galaxies with the
highest HI peak flux densities in the southern hemisphere (Koribalski et al.
2003). This sample spans nearly four orders of magnitude in HI mass (from log
M_HI/M_sun=6.8 to 10.6, H0=75) and is the largest sample of HI selected
galaxies to date. We develop a bivariate maximum likelihood technique to
measure the space density of galaxies, and show that this is a robust method,
insensitive to the effects of large scale structure. The resulting HI mass
function can be fitted satisfactorily with a Schechter function with faint-end
slope alpha=-1.30. This slope is found to be dependent on morphological type,
with later type galaxies giving steeper slopes. We extensively test various
effects that potentially bias the determination of the HI mass function,
including peculiar motions of galaxies, large scale structure, selection bias,
and inclination effects, and quantify these biases. The large sample of
galaxies enables an accurate measurement of the cosmological mass density of
neutral gas: Omega_HI=(3.8 +/- 0.6) x 10^{-4}. Low surface brightness galaxies
contribute only 15% to this value, consistent with previous findings.Comment: accepted for publication in Astronomical Journal, 16 pages, including
17 figures. Corrected typos and reference
What is the 'dominant model' of British policymaking? Comparing majoritarian and policy community ideas
The aim of this article is to help identify the fundamental characteristics of the British policymaking system. It highlights an enduring conflict of interpretation within the literature. On the one hand, most contemporary analysts argue that the âWestminster model' is outmoded and that it has been replaced by modern understandings based on âgovernance'. On the other, key ideas associated with the Westminster model, regarding majoritarian government and policy imposition, are still in good currency in the academic literature, which holds firm to Lijphart's description of the United Kingdom as a majoritarian democracy. These very different understandings of British government are both commonly cited, but without much recognition that their conclusions may be mutually incompatible. To address this lack of comparison of competing narratives, the article outlines two main approaches to describe and explain the âcharacteristic and durable' ways of doing things in Britain: the âpolicy styles' literature initiated by Richardson in Policy Styles in Western Europe and the Lijphart account found in Democracies and revised in 1999 as Patterns of Democracy. The article encourages scholars to reject an appealing compromise between majoritarian and governance accounts
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