Minh Y C, Irvine W M, McGonagle D
Korea Astronomy Observatory, Hwaam, Yusong.
J Korean Astron Soc. 1993;26:99-101.
We have searched for the 2 mm transitions of H2COH+ (2(02) - 1(01)) and H2(13)CO (2(02) - 1(01), 2(12) - 1(11), and 2(11) - 1(10)) toward the dense interstellar molecular clouds Orion A, TMC-1 and L134N using the FCRAO 14m telescope. None of the transitions have been detected except the H2(13)CO transitions toward Orion-KL. We set upper limits for the abundances of the protonated formaldehyde ion (H2COH+), which are close to the abundances expected from ion-molecule chemistry.
我们使用位于弗雷德·劳伦斯·惠普尔天文台（FCRAO）的14米望远镜，在致密星际分子云猎户座A、TMC-1和L134N中搜寻了H2COH+（2(02) - 1(01)）和H2(13)CO（2(02) - 1(01)、2(12) - 1(11)以及2(11) - 1(10)）的2毫米跃迁。除了朝向猎户座-KL的H2(13)CO跃迁外，其他跃迁均未被探测到。我们设定了质子化甲醛离子（H2COH+）丰度的上限，这些上限接近离子-分子化学预期的丰度。
