We have simultaneously observed 12CO, laCO and clSo （J = 1 - 0） rotational transitions in the centers of a sample of 58 nearby spiral galaxies using the 13.7-m millimeter-wave telescope administered by Purple Mounta...We have simultaneously observed 12CO, laCO and clSo （J = 1 - 0） rotational transitions in the centers of a sample of 58 nearby spiral galaxies using the 13.7-m millimeter-wave telescope administered by Purple Mountain Observatory. Forty-two galaxies were detected in 13CO emission, but there was a null detection for C180 emission with a cr upper limit of 2 mK. The central beam ratios, R, of 12CO and 13CO range mostly from 5 to 13, with an average value of 8.1 ±4.2, which is slightly lower than previous estimates for normal galaxies. Clear correlations are found between ^12CO and ^13CO luminosities. An average X factor of 1.44± 0.84 × 10^20 cm^-2 （K km s-l）-1 is slightly lower than that in the Milky Way.展开更多
To the Editor:Temporal depression is characterized by height difference between temporal concavity and lateral projection of the zygomatic arch.The aim of correction of temporal depression is to decrease the height di...To the Editor:Temporal depression is characterized by height difference between temporal concavity and lateral projection of the zygomatic arch.The aim of correction of temporal depression is to decrease the height difference between the concavity and lateral projection.In this study,we investigated whether decreasing the projection of the zygomatic arch by liposuction would benefit for correction of temporal depression.展开更多
文摘We have simultaneously observed 12CO, laCO and clSo （J = 1 - 0） rotational transitions in the centers of a sample of 58 nearby spiral galaxies using the 13.7-m millimeter-wave telescope administered by Purple Mountain Observatory. Forty-two galaxies were detected in 13CO emission, but there was a null detection for C180 emission with a cr upper limit of 2 mK. The central beam ratios, R, of 12CO and 13CO range mostly from 5 to 13, with an average value of 8.1 ±4.2, which is slightly lower than previous estimates for normal galaxies. Clear correlations are found between ^12CO and ^13CO luminosities. An average X factor of 1.44± 0.84 × 10^20 cm^-2 （K km s-l）-1 is slightly lower than that in the Milky Way.
文摘To the Editor:Temporal depression is characterized by height difference between temporal concavity and lateral projection of the zygomatic arch.The aim of correction of temporal depression is to decrease the height difference between the concavity and lateral projection.In this study,we investigated whether decreasing the projection of the zygomatic arch by liposuction would benefit for correction of temporal depression.
