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Title:THE MICROWAVE SPECTROSCOPY OF HCOO13CH3 IN THE SECOND TORSIONAL EXCITED STATE
Author(s):Kobayashi, Kaori
Contributor(s):Fujitake, Masaharu; Ohashi, Nobukimi; Urata, Yuki; Kuwahara, Takuro
Subject(s):Astronomy
Abstract:Methyl formate (HCOOCH$_3$) is an abundant interstellar molecule, found almost everywhere in the star-forming region. _x000d_ The interstellar abundance of the $^{13}$C is about 1/50 of $^{12}$C. _x000d_ The $^{13}$C substituted methyl formate in the ground and first excited states were already found toward massive star-forming_x000d_ regions including Orion KL. _x000d_ $footnote{C. Favre, M. Carvajal, D. Field, J. K. J$o$rgensen, S. E. Bisschop, N. Brouillet, D. Despois, A. Baudry, I. Kleiner, E. A. Bergin, N. R. Crockett, J. L. Neill, L. Margu`{e}s, T. R. Huet, and J. Demaison,_x000d_ textit{Astrophys. J. Suppl. Ser.} underline{textbf{215}}, 25 (2014).}$_x000d_ With the aid of the state-of-the-art telescope like ALMA,_x000d_ the pure rotational transitions in the second torsional excited may be identified in the near future and laboratory data are necessary. _x000d_ We recorded the spectra of HCOOCH$_3$ below 340 GHz by using conventional source-modulation microwave spectrometer._x000d_ The assignment of the pure rotational spectra in the second torsional excited state_x000d_ and the analysis by using pseudo-PAM Hamiltonian, which was effective to analyze the normal species, will be reported. _x000d_
Issue Date:6/21/2017
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/97018
DOI:10.15278/isms.2017.WA02
Date Available in IDEALS:2017-07-27


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