2 papers
astro-ph2002
Radiative pumping of 1612 MHz OH masers: OH/IR sources with IRAS LRS spectra and 34.6 micrometer absorption feature
R. Szczerba, J. H. He, P. S. Chen
The population inversion which leads to the 1612 MHz OH maser emission has long been thought to be radiatively pumped. Since OH rotational lines involved in this pumping scheme lie…
astro-ph2002
The Supermassive Black Hole in the Gamma-ray Loud Blazar PKS 1510-089
B. Z. Dai, G. Z. Xie, Z. J. Jiang +1
We present the optical light curve for the gamma-ray blazar PKS 1510-089 with a significant variability of 2.0 mag within about 41 minutes in the R band which is the most violently…