Erratum: “The ASTRO Survey of the Galactic Center Region. I. The Inner 3 Degrees” (ApJS, 150, 239 [2004])

Abstract

Spatial-spatial ('; b) integrated intensity maps for the three transitions observed with ASTRO (top three panels) and, for comparison, the three transitions observed at the BL 7 m (bottom three panels). Transitions are identified at left on each panel. The emission is integrated over all velocities where data are available. These values of (v min , v max ) are: [C i ], (À90, 150); CO(7-6), (À30, 120); CO(4-3), (À150, 150); CO(1-0), (À150, 150); 13 CO(1-0), (À150, 150); CS(2-1), (À150, 150). All six maps have been smoothed to the same 2 0 resolution. The scale on the color bars have been multiplied by 2 to correct for an error in the plotting routine used in the published version of the maps. 395

A Variability and Localization Study of the Galactic Center Gamma‐Ray Source 3EG J1746−2851

“…The total mass of the gas cloud would have to be M gas ' 5 ; 10 7 M if located at the Galactic center, and the cloud should have an apparent extent of gas P 0N3, so that it would appear pointlike at high -ray energies. Such a massive gas complex should have been seen in the atomic fine-structure lines (Ojha et al 2001;Rodríguez-Fernández et al 2004) or in CO lines ( Kime et al 2002;Martin et al 2004). A somewhat smaller mass of unaccounted gas is required to shift the apparent position of a true point source, so 3EG J1746À2851 would be the composite of the true point source and the emission from the unaccounted gas cloud, but even if providing only 20% of the measured flux from 3EG J1746À2851, i.e., having a mass M gas ' 10 7 M , the radio and infrared data do not indicate the existence of a previously unknown gas complex of the appropriate localization and compactness.…”

Molecular Gas Dynamics in NGC 6946: A Bar‐driven Nuclear Starburst “Caught in the Act”

“…This mechanism is based on the gravitational collapse of the gas into giant gas clouds in the ILR ring suggested by Elmegreen (1994). Stark et al (2004) used the properties of the Galactic center molecular gas derived by Martin et al (2004) to estimate a critical density of n(H 2 ) $ 10 3:5 cm À3 above which the molecular gas in the ILR will become instable and self-gravitating. The sudden formation of these clouds can result in a starburst.…”

Science Programs for a 2-m Class Telescope at Dome C, Antarctica: PILOT, the Pathfinder for an International Large Optical Telescope

“…ionized) lines of the atom. The first detection of [Ci] 3 P 1 → 3 P 0 in another galaxy (the Large Magellanic Cloud) was made with a 1.7 m radio-telescope from the South Pole (AST/RO; Stark et al 1997), and the most extensive mappings of [Ci] 3 P 2 → 3 P 1 in any objects have also been made with this instrument (NGC6334 and the Galactic Centre; Martin et al 2004).…”