Abstract: We have developed a self - consistent model of the disk around the nearby 10 Myr old star TW Hya which matches the observed spectral energy distribution and 7 mm images of the disk. (arxiv.org)
Both the optical spectrum and the broad band spectral energy distribution of Sharov 21 are shown to be very similar to that of normal, radio - quiet type 1 quasars. (arxiv.org)
The near - to mid-IR spectral energy distribution of the radio galaxy suggests the existence of a reddened, E (B - V) = 0.4 (+ / --RRB- 0.1 $, evolved stellar population of age > ~ 1.8 Gyr and mass 5 (+ / --RRB- 2 x 1e11 Msun. (arxiv.org)