Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (55) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (1)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Detection of isocyanoacetylene HCCNC in TMC-1
Authors:
Kawaguchi, Kentarou; Ohishi, Masatoshi; Ishikawa, Shin-Ichi; Kaifu, Norio
Affiliation:
AA(Nobeyama Radio Observatory, Minamimaki, Japan), AB(Nobeyama Radio Observatory, Minamimaki, Japan), AC(Nobeyama Radio Observatory, Minamimaki, Japan), AD(National Astronomical Observatory, Mitaka, Japan)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 386, Feb. 20, 1992, p. L51-L53. (ApJL Homepage)
Publication Date:
02/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Abundance, Cyanoacetylene, Interstellar Chemistry, Molecular Clouds, Isomers, Line Spectra, Molecular Spectra, Taurus Constellation, Telescopes
DOI:
10.1086/186290
Bibliographic Code:
1992ApJ...386L..51K

Abstract

The detection is reported of the linear HCCNC molecule, an isomer of cyanoacetylene HCCCN, in TMC-1 with the Nobeyama 45-m telescope using recent laboratory data reported by Krueger (1991). Molecular line data in the frequency range of 9-115 GHz are obtained in order to study the whole dark-cloud molecular abundance and chemistry. The frontends used in the 40- and 89-GHz regions were an SIS receiver and a cooled Schottky diode receiver, respectively, with single-sideband filters. A single line was detected at 39742.6 MGz in March 1986 with an antenna temperature of 0.33 K, which could not be assigned to any transitions of known molecules. In the line survey data, an unidentified line at 49677.9 MHz, which had been observed in February 1985, was also detected. The column density of HCCNC in TMC-1 is determined to be 2.9(0.2) x 10 exp 12/sq cm, which is 20-60 times smaller than that of HCCCN.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences



More Article Retrieval Options

HELP for Article Retrieval


Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

  New!

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints