The Vatican, American Catholics and the Struggle for Palestine, 1917-1958: A Study of Cold War Roman Catholic Transnationalism

The modern relationship between the Vatican and the state of Israel is rooted in a much deeper history of relations between Judaism and Christianity. In the main, this relationship was fraught with tensions and animosity, as early Christian writers chastised and demonized Judaism, ensconcing a hostility that endured for centuries. The advent of political Zionism in the nineteenth century renewed Roman Catholic fears of a Jewish-dominated Palestine, where religious sites sacred to Catholics would fall under the political jurisdiction of a Zionist state. In 1904, Pope Pius X granted an audience to the prominent Zionist Theodor Herzl, in which he reminded his guest that the Roman Catholic Church could never endorse or support the creation of a Jewish home in Palestine. This was to remain the essence of papal policy on Palestine for decades to come. This study examines the relationship between the Vatican and Zionism from the Balfour Declaration (1917) to the creation of Israel in 1948, as well as Vatican attempts to constrain the nascent state in the years after its birth. More specifically, it considers the transnational nature of Roman Catholic responses to Zionism and the creation of Israel. The Vatican was supported in its anti-Zionist stance by an international network of national Catholic hierarchies, lay Catholic organizations and an active Catholic press. Leading this international Roman Catholic lobby against Zionism were the Catholic bishops of the United States. From the 1920s through the 1950s, American Catholic leaders had become crucial intermediaries in the relationship between Washington and the Vatican. Speaking as both loyal American citizens and as devout Roman Catholics, the bishops were uniquely positioned to transmit the Vatican’s policy objectives to the American government. The American bishops were also instrumental in advocating Vatican positions on Zionism at the United Nations, evidence of the importance of the American Catholic Church, and its various organs, in disseminating the positions of the Vatican to the international community. Through an examination of a comprehensive range of primary materials, this study demonstrates that an understanding of the Vatican’s relationship with Zionism and the nascent Israeli state must take into account the transnational Roman Catholic consensus on the future of Palestine, an advocacy led by American Catholics, who represented the leading edge of Vatican attempts to shape the future of Palestine

Search for eccentric black hole coalescences during the third observing run of LIGO and Virgo

Despite the growing number of confident binary black hole coalescences observed through gravitational waves so far, the astrophysical origin of these binaries remains uncertain. Orbital eccentricity is one of the clearest tracers of binary formation channels. Identifying binary eccentricity, however, remains challenging due to the limited availability of gravitational waveforms that include effects of eccentricity. Here, we present observational results for a waveform-independent search sensitive to eccentric black hole coalescences, covering the third observing run (O3) of the LIGO and Virgo detectors. We identified no new high-significance candidates beyond those that were already identified with searches focusing on quasi-circular binaries. We determine the sensitivity of our search to high-mass (total mass M>70 M⊙) binaries covering eccentricities up to 0.3 at 15 Hz orbital frequency, and use this to compare model predictions to search results. Assuming all detections are indeed quasi-circular, for our fiducial population model, we place an upper limit for the merger rate density of high-mass binaries with eccentricities 0<e≤0.3 at 0.33 Gpc−3 yr−1 at 90\% confidence level

Ultralight vector dark matter search using data from the KAGRA O3GK run

Among the various candidates for dark matter (DM), ultralight vector DM can be probed by laser interferometric gravitational wave detectors through the measurement of oscillating length changes in the arm cavities. In this context, KAGRA has a unique feature due to differing compositions of its mirrors, enhancing the signal of vector DM in the length change in the auxiliary channels. Here we present the result of a search for U(1)B−L gauge boson DM using the KAGRA data from auxiliary length channels during the first joint observation run together with GEO600. By applying our search pipeline, which takes into account the stochastic nature of ultralight DM, upper bounds on the coupling strength between the U(1)B−L gauge boson and ordinary matter are obtained for a range of DM masses. While our constraints are less stringent than those derived from previous experiments, this study demonstrates the applicability of our method to the lower-mass vector DM search, which is made difficult in this measurement by the short observation time compared to the auto-correlation time scale of DM