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226 papers · 1 filter
Limit on the B0->rho0rho0 Branching Fraction and Implications for the CKM Angle alpha
The BABAR Collaboration, B. Aubert et al
We search for the decay B0 -> rho0 rho0 in a data sample of about 227 million Upsilon(4S)-> BBbar decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- coll…
Measurement of Branching Fractions and Charge Asymmetries for Exclusive B Decays to Charmonium
B. Aubert, BABAR Collaboration
We report measurements of branching fractions and charge asymmetries of exclusive decays of neutral and charged B mesons into two-body final states containing a charmonium state an…
Chandra-LETGS observation of Mrk 279: modeling the AGN internal structure
E. Costantini, J. S. Kaastra, K. C. Steenbrugge +3
We present the Chandra-LETGS analysis of Mrk 279, a bright Seyfert 1 galaxy. The spectrum shows a variety of features arising from different physical environments in the vicinity o…
Doppler tomography of the Little Homunculus: High resolution spectra of [Fe II] 16435 around Eta Carinae
Nathan Smith
High-resolution spectra of [Fe II] 16435 around eta Carinae provide powerful diagnostics of the geometry and kinematics of the ``Little Homunculus'' (LH) growing inside the larger…
Precursor activity in bright long BATSE gamma-Ray Bursts
Davide Lazzati
We study a sample of bright long BATSE GRB light curves in the 200 s before the detection of the GRB prompt emission. We find that in a sizable fraction of cases (20 %) there is ev…
A Far-Ultraviolet Spectroscopic Survey of Luminous Cool Stars
A. K. Dupree, A. Lobel, P. R. Young +3
FUSE ultraviolet spectra of 8 giant and supergiant stars reveal that high temperature (3 X 10^5 K) atmospheres are common in luminous cool stars and extend across the color-magnitu…