The "new" quantitative history: social science or old wine in new bottles?

Der Autor stellt Ansätze der quantifizierenden historischen Forschung in den USA vor, die einen Fortschritt auf dem Weg zu einer sozialwissenschaftlichen Geschichtswissenschaft darstellen. Auch bei der Übernahme sozialwissenschaftlicher Methoden bleiben die ursprünglichen Ziele der Historiographie erhalten. Für die Anfänge dieser Entwicklung konstatiert der Autor eine Vernachlässigung konzeptioneller Fragen zugunsten der reinen Datenerhebung. Für ihn ist die Entwicklung in der neuen ökonomischen Geschichte am weitesten fortgeschritten, die von einem neoklassischen Ansatz ausgeht. (BG

History, Quantification, and the Social Sciences

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/67009/2/10.1177_000276427702100202.pd

Machine-Readable Data Production by the Federal Government

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68228/2/10.1177_000276427601900402.pd

The New Political History

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/66569/2/10.1177_000276427702100204.pd

Reverberation Mapping of the Kepler-Field AGN KA1858+4850

KA1858+4850 is a narrow-line Seyfert 1 galaxy at redshift 0.078 and is among the brightest active galaxies monitored by the Kepler mission. We have carried out a reverberation mapping campaign designed to measure the broad-line region size and estimate the mass of the black hole in this galaxy. We obtained 74 epochs of spectroscopic data using the Kast Spectrograph at the Lick 3-m telescope from February to November of 2012, and obtained complementary V-band images from five other ground-based telescopes. We measured the H-beta light curve lag with respect to the V-band continuum light curve using both cross-correlation techniques (CCF) and continuum light curve variability modeling with the JAVELIN method, and found rest-frame lags of lag_CCF = 13.53 (+2.03, -2.32) days and lag_JAVELIN = 13.15 (+1.08, -1.00) days. The H-beta root-mean-square line profile has a width of sigma_line = 770 +/- 49 km/s. Combining these two results and assuming a virial scale factor of f = 5.13, we obtained a virial estimate of M_BH = 8.06 (+1.59, -1.72) x 10^6 M_sun for the mass of the central black hole and an Eddington ratio of L/L_Edd ~ 0.2. We also obtained consistent but slightly shorter emission-line lags with respect to the Kepler light curve. Thanks to the Kepler mission, the light curve of KA1858+4850 has among the highest cadences and signal-to-noise ratios ever measured for an active galactic nucleus; thus, our black hole mass measurement will serve as a reference point for relations between black hole mass and continuum variability characteristics in active galactic nuclei