Victim and Perpetrator Perspectives in Post World War II Contexts: Intergroup Forgiveness and Historical Closure in Europe and East Asia

The current thesis aimed to extend existing research on intergroup forgiveness by considering historical context as an important element. The clear victim and perpetrator roles in the European and East Asian post World War II settings provided the context for this research. Social representations of history provided the theoretical framework for four studies. Study 1 employed a meta-analytical approach to explore the impact of contextual variables on interpersonal forgiveness across 13 societies. Based on Berry's ecocultural framework and Inglehart's affluence theory it was expected that socio-political, societal well-being and socio-economic variables are linked to interpersonal forgiveness. Significant differences in interpersonal forgiveness between the 13 societies emerged, which could be explained by conflict potential, socio-economic and socio-political context variables, societal peacefulness, societal well-being, and negative societal evaluations of historical calamities. Study 2 explored conceptualisations of interpersonal and intergroup forgiveness using a qualitative approach with interviewees from Japan, Germany and the Philippines. Facets, antecedents and outcomes of forgiveness were identified as main themes. Differences in the relevance of forgiveness as a means of conflict resolution were revealed across cultures. An illuminating concept was identified and labelled as "historical closure", signifying an attitude towards historical issues as relevant or irrelevant to present and future relationships between groups. Study 3a and 3b included victim perspectives from three formerly victimized European nations (France, Poland, Russia) and three formerly victimized East Asian nations (China, Taiwan, Philippines). Study 3a examined differences in intergroup forgiveness across the six societies. Between-society differences were found. Chinese participants were less forgiving compared to French participants, pointing to the different historical contexts as an explanatory source. Study 3b investigated the ability of historical closure and other group-based constructs to predict intergroup forgiveness. In both settings, historical closure was a consistent significant predictor and contributed to explain unique variance. A cross-level operator analysis revealed that political apologies by the perpetrator country during the last 20 years was negatively associated with intergroup forgiveness, indicating that external context related variables can contribute to explain intergroup forgiveness. Study 4 investigated perpetrator perspectives from Japan and Germany, with focus on the cognitive and behavioural components of the willingness to make amends. Japanese and Germans differed significantly on the behavioural component: it was predicted by lack of closure in the Japanese sample; whereas in the German sample guilt and shame were positive predictors. Lack of historical closure consistently contributed to predicting the cognitive component of the willingness to make amends. Japanese experienced more guilt and shame feelings than Germans. Stronger national identification did not contribute as expected and had a reversed effect in Japan by being a positive predictor. Historical closure is an intriguing concept, as it is a positive predictor for intergroup forgiveness among participants from formerly victimized nations, but a negative predictor for the willingness to make amends among participants from formerly perpetrating nations. This is an interesting interdependency in coming to terms with history: closure seems to be needed by victims to be ready to forgive, whereas the lack of closure for perpetrators seems to drive the willingness to make amends

Adults' Identity in Acculturation Settings: The Multigroup Ethnic & National Identity Measure (MENI)

European societies are facing great challenges not only in successfully integrating large numbers of culturally, linguistically, and religiously diverse immigrants structurally (e.g. into schools or the labor market), but also in fostering the construction of new identities and preserving social cohesion. In this context, it is crucial to understand the commitment people feel to a cultural environment and the way in which such commitment develops, particularly in new cultural settings. However, there is a lack of research on identity development among adult immigrants and natives and a lack of suitable measurement instruments. To address this, we adapted the Multigroup Ethnic Identity Measure–Revised (MEIM-R) for application to immigrant and native adult populations and extended it to measure also national identity. Our aim in the present study was to test the psychometric properties of this new Multigroup Ethnic & National Identity Measure (MENI) in a representative sample (N = 3410) of immigrant and native adults (aged 20-72 years) in a European context, namely Germany. Results based on confirmatory factor analyses support a two-factor structure (commitment and exploration) for MENI and confirm scalar invariance across both the immigrant and native adult populations

Spectroscopy of the stellar wind in the Cygnus X-1 system

The X-ray luminosity of black holes is produced through the accretion of material from their companion stars. Depending on the mass of the donor star, accretion of the material falling onto the black hole through the inner Lagrange point of the system or accretion by the strong stellar wind can occur. Cygnus X-1 is a high mass X-ray binary system, where the black hole is powered by accretion of the stellar wind of its supergiant companion star HDE226868. As the companion is close to filling its Roche lobe, the wind is not symmetric, but strongly focused towards the black hole. Chandra-HETGS observations allow for an investigation of this focused stellar wind, which is essential to understand the physics of the accretion flow. We compare observations at the distinct orbital phases of 0.0, 0.2, 0.5 and 0.75. These correspond to different lines of sights towards the source, allowing us to probe the structure and the dynamics of the wind.Comment: conference proceeding from Integral/Bart Workshop Karlsbad, CZ, 14.4-18.4 201

Chandra X-ray spectroscopy of the focused wind in the Cygnus X-1 system. I. The non-dip spectrum in the low/hard state

We present analyses of a 50 ks observation of the supergiant X-ray binary system Cygnus X-1/HDE 226868 taken with the Chandra High Energy Transmission Grating Spectrometer (HETGS). Cyg X-1 was in its spectrally hard state and the observation was performed during superior conjunction of the black hole, allowing for the spectroscopic analysis of the accreted stellar wind along the line of sight. A significant part of the observation covers X-ray dips as commonly observed for Cyg X-1 at this orbital phase, however, here we only analyze the high count rate non-dip spectrum. The full 0.5-10 keV continuum can be described by a single model consisting of a disk, a narrow and a relativistically broadened Fe Kalpha line, and a power law component, which is consistent with simultaneous RXTE broad band data. We detect absorption edges from overabundant neutral O, Ne and Fe, and absorption line series from highly ionized ions and infer column densities and Doppler shifts. With emission lines of He-like Mg XI, we detect two plasma components with velocities and densities consistent with the base of the spherical wind and a focused wind. A simple simulation of the photoionization zone suggests that large parts of the spherical wind outside of the focused stream are completely ionized, which is consistent with the low velocities (<200 km/s) observed in the absorption lines, as the position of absorbers in a spherical wind at low projected velocity is well constrained. Our observations provide input for models that couple the wind activity of HDE 226868 to the properties of the accretion flow onto the black hole.Comment: 16 pages, 15 figures, uses emulateapj, published as ApJ 690:330-346, 2009 January

Multi-Satellite Observations of Cygnus X-1 to Study the Focused Wind and Absorption Dips

High-mass X-ray binary systems are powered by the stellar wind of their donor stars. The X-ray state of Cygnus X-1 is correlated with the properties of the wind which defines the environment of mass accretion. Chandra-HETGS observations close to orbital phase 0 allow for an analysis of the photoionzed stellar wind at high resolution, but because of the strong variability due to soft X-ray absorption dips, simultaneous multi-satellite observations are required to track and understand the continuum, too. Besides an earlier joint Chandra and RXTE observation, we present first results from a recent campaign which represents the best broad-band spectrum of Cyg X-1 ever achieved: On 2008 April 18/19 we observed this source with XMM-Newton, Chandra, Suzaku, RXTE, INTEGRAL, Swift, and AGILE in X- and gamma-rays, as well as with VLA in the radio. After superior conjunction of the black hole, we detect soft X-ray absorption dips likely due to clumps in the focused wind covering >95 % of the X-ray source, with column densities likely to be of several 10^23 cm^-2, which also affect photon energies above 20 keV via Compton scattering.Comment: 10 pages, contributed talk at the 7th Microquasar Workshop, Foca, Turkey, Sept. 1-5, 200

Corona, Jet, and Relativistic Line Models for Suzaku/RXTE/Chandra-HETG Observations of the Cygnus X-1 Hard State

Using Suzaku and the Rossi X-ray Timing Explorer, we have conducted a series of four simultaneous observations of the galactic black hole candidate Cyg X-1 in what were historically faint and spectrally hard low states. Additionally, all of these observations occurred near superior conjunction with our line of sight to the X-ray source passing through the dense phases of the focused wind from the mass donating secondary. One of our observations was also simultaneous with observations by the Chandra-High Energy Transmission Grating. These latter spectra are crucial for revealing the ionized absorption due to the secondary's focused wind. Such absorption is present and must be accounted for in all four spectra. These simultaneous data give an unprecedented view of the 0.8-300 keV spectrum of Cyg X-1, and hence bear upon both corona and X-ray emitting jet models of black hole hard states. Three models fit the spectra well: coronae with thermal or mixed thermal/non-thermal electron populations, and jets. All three models require a soft component that we fit with a low temperature disk spectrum with an inner radius of only a few tens of GM/c^2. All three models also agree that the known spectral break at 10\,keV is not solely due to the presence of reflection, but each gives a different underlying explanation for the augmentation of this break. Thus whereas all three models require that there is a relativistically broadened Fe line, the strength and inner radius of such a line is dependent upon the specific model, {thus making premature line-based estimates of the black hole spin in the Cyg X-1 system. We look at the relativistic line in detail, accounting for the narrow Fe emission and ionized absorption detected by HETG. Although the specific relativistic parameters of the line are continuum-dependent, none of the broad line fits allow for an inner disk radius that is >40 GM/c^2.Comment: 22 pages, 16 figures. Uses emulateapj style. Final three tables inserted as a figure to avoid issues with astro-ph's version of latex mangling the use of lscape. To be published in the Astrophysical Journal, January, 201

IGR J16318-4848: 7 Years of INTEGRAL Observations

Since the discovery of IGR 116318-4848 in 2003 January, INTEGRAL has accumulated more than 5.8 Ms in IBIS/ISGRI. We present the first extensive analysis of the archival INTEGRAL data (IBIS/ISGRI, and JEM-X when available) for this source, together with the observations carried out by XMM-Newton (twice in 2003, and twice in 2004) and Suzaku (2006). The source is very variable in the long-term, with periods of low activity, where the source is almost not detected, and flares with a luminosity approximately 10 times greater than its average value (5.4 cts/s). IGR 116318-4848 is a HMXB containing a sgB[e] star and a compact object (most probably a neutron star) deeply embedded in the stellar wind of the mass donor. The variability of the source (also in the short-term) can be ascribed to the wind of the optical star being very clumpy. We study the variation of the spectral parameters in time scales of INTEGRAL revolutions. The photoelectric absorption is, with NH around 10(exp 24)/ square cm, unusually high. During brighter phases the strong K-alpha iron line known from XMM-Newton and Suzaku observations is also detectable with the JEM-X instrument

Acculturation and Naturalization: Insights From Representative and Longitudinal Migration Studies in Germany

In recent years, Western countries have been experiencing a growing wave of immigration. Due to this development, these countries are facing great challenges in successfully integrating large numbers of immigrants and in preserving social cohesion. Research has already developed several assumptions about and models of how acculturation processes occur. The present contribution aims to investigate the relationship between the acculturation (and acculturation profiles) of immigrants and naturalization in their residence countries. Based on representative and longitudinal data, our investigation is a case study on Germany—one of the main receiving countries in recent years. Results show that acculturation in the country of residence is crucial for immigrants' motivation to take up citizenship. Likewise naturalization leads to an increase in identification with the residence country