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[ $^{13}CO$ ] OBSERVATIONS OF 17 SMALL DARK CLOUDS
KWON SUK MINN,FUKUI YASUO The Korean Astronomical Society 1996 Journal of The Korean Astronomical Society Vol.29 No.suppl1
We have carried out $^{13}CO$ J = 1 $\to$ 0 line observations with spatial resolution of 2' toward 17 small globules selected from the catalogue of Clemens & Barvainis (1988) with a selection criterion of [b] $\ge$ 15 degrees using the Nagoya 4-m radio telescope. Overall characteristics and physical parameters are presented and discussed by examining the $^{13}CO$ integrated intensity map for each of the globules.
[ $^{13}CO$ ] OBSERVATIONS OF CMa OB1/RA REGION
KIM BONG GYU,KAWAMURA AKINO,FUKUI YASUO The Korean Astronomical Society 1996 Journal of The Korean Astronomical Society Vol.29 No.suppl1
A large scale $^{13}CO$(J=1-0) survey was made for CMa OB1/R1 region in $220^{\circ}{\le}{\iota}{\le}230^{\circ}$ and $-10^{\circ}{\le}b{\le}10^{\circ}$ with a 8' spacing by using the 4 m radio telescope of Nagoya University. 34 isolated clouds were identified in this survey. Among them, two clouds were firstly identified by us. The observed LSR velocity indicate that almost of the all clouds are located in the Local arm, except two extreme velocity. The mass spectrum of the clouds in the Local arm is best fitted by a power-law index of 1.6.
Hidetoshi Sano,TOMOYA AMATSUTSU,TORU KONDO,KEICHIRO NAKAMICHI,MITSUYOSHI YAMAGISHI,DAISUKE ISHIHARA,SHINKI OYABU,HIDEHIRO KANEDA,KENGO TACHIHARA,YASUO FUKUI 한국천문학회 2017 天文學論叢 Vol.32 No.1
We present a comparative study of CO and polycyclic aromatic hydrocarbon (PAH) emission toward a region including the massive star-forming regions of NGC 6334 and NGC 6357. We use the NANTEN $^{12}$CO($J$=1--0) data and the $AKARI$ 9 $\mu$m All-Sky diffuse map in order to evaluate the calibration accuracy of the $AKARI$ data. We confirm that the overall CO distribution shows a good spatial correspondence with the PAH emission, and their intensities exhibit a good power-law correlation with a spatial resolution down to 4$\rq{}$ over the region of 10$^\circ$$\times$10$^\circ$. We also reveal poorer correlation for small scale structures between the two quantities toward NGC 6357, due to strong UV radiation from local sources. Larger scatter in the correlation toward NGC 6357 indicates higher ionization degree and/or PAH excitation than that of NGC 6334.