Studies of black holes are at a threshold. There is compelling evidence for the existence of both stellar-mass and supermassive black holes, and research is now...
Black Holes Really are Black: New Evidence From Chandra
We have used the Chandra X-ray Observatory to observe the following six black hole X-ray transients in quiescence: GRO J0422+32 (orbital period Porb=5.1 hr)...
BLASTbus electronics: general-purpose readout and control for balloon-borne experiments
We present the second generation BLASTbus electronics. The primary purposes of this system are detector readout, attitude control, and cryogenic housekeeping...
Blowing bubbles: The impact of microquasar jets on the ISM
Microquasars are in many ways similar to their massive counterparts, the radio loud population of AGNs. One aspect that is just beginning to receive the due...
Blue compact dwarf galaxies with nitrogen overabundance: a view from integral field spectroscopy
Blue compact dwarf galaxies (BCDs) take up the low end of the distribution of metallicity and nitrogen-to-oxygen (N/O) ratio as derived using collisional...
Transiting planet systems offer a unique opportunity to observationally constrain proposed models of the interiors (radius, composition) and atmospheres...
Blue Massive Stars in NGC 55: A First Quantitative Study
We present the first census of blue massive stars in NGC 55, a galaxy of the Sculptor group at 1.94 Mpc. This study is based on optical low-resolution spectra...