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136 papers · 1 filter
Probing the Disk-jet Connection of the Radio Galaxy 3C120 Observed with Suzaku
Jun Kataoka, James N. Reeves, Kazushi Iwasawa +13
Broad line radio galaxies (BLRGs) are a rare type of radio-loud AGN, in which the broad optical permitted emission lines have been detected in addition to the extended jet emission…
Flux-induced isometry gauging in heterotic strings
Wu-yen Chuang, Peng Gao
We study the effect of flux-induced isometry gauging of the scalar manifold in N=2 heterotic string compactification with gauge fluxes. We show that a vanishing theorem by Witten p…
Improved Distances to Type Ia Supernovae with Multicolor Light Curve Shapes: MLCS2k2
Saurabh Jha, Adam G. Riess, Robert P. Kirshner
We present an updated version of the Multicolor Light Curve Shape method to measure distances to type Ia supernovae (SN Ia), incorporating new procedures for K-correction and extin…
Measurement of the B0 --> pi l nu Form-Factor Shape and Branching Fraction, and Determination of |Vub| with a Loose Neutrino Reconstruction Technique
B. Aubert et al.
We report the results of a study of the exclusive charmless semileptonic decay, B --> pi l nu, undertaken with approximately 227 million BBbar pairs collected at the Upsilon(4S) re…
Numerical simulations of the metallicity distribution in dwarf spheroidal galaxies
E. Ripamonti, E. Tolstoy, A. Helmi +2
Recent observations show that the number of stars with very low metallicities in the dwarf spheroidal satellites of the Milky Way is low, despite the low average metallicities of s…
The Velocity Field of the Local Universe from Measurements of Type Ia Supernovae
Troels Haugboelle, Steen Hannestad, Bjarne Thomsen +3
We present a measurement of the velocity flow of the local universe relative to the CMB rest frame, based on the Jha, Riess & Kirshner (2007) sample of 133 low redshift type Ia sup…