2001ApJ...548..253O


Query : 2001ApJ...548..253O

2001ApJ...548..253O - Astrophys. J., 548, 253-257 (2001/February-2)

AST/RO observations of atomic carbon near the Galactic Center.

OJHA R., STARK A.A., HSIEH H.H., LANE A.P., CHAMBERLIN R.A., BANIA T.M., BOLATTO A.D., JACKSON J.M. and WRIGHT G.A.

Abstract (from CDS):

We present a coarsely sampled map of the region |l|≤2°, |b|≤0°.1 in the 492 GHz (3P13P0) fine-structure transition of neutral carbon, observed with the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO). The distribution of [C I] emission is similar on the large scale to that of CO J=1⟶0. On average, the ratio of the integrated intensities, I_[CI]/I12CO_, is higher in the Galactic disk than in the Galactic center region. This result is accounted for by the absorption of 12CO within the clouds located in the outer Galactic disk. The ratio I_[CI]/I12CO_ is surprisingly uniform over the variety of environments near the Galactic center. On average, [C I] is optically thin [or as optically thin as 13CO (J=1⟶0)], even in the dense molecular clouds of the Galactic center region.

Abstract Copyright:

Journal keyword(s): Galaxy: Abundances - Galaxy: Center - ISM: Atoms - ISM: General - ISM: Molecules

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NAME Sgr A Region reg 17 45 12 -28 48.3           ~ 935 0
2 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13331 0
3 NAME Sgr B MoC 17 47 02 -28 25.4           ~ 212 0
4 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2135 1

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2022.12.07-14:12:42

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