Search for HeH(+) in NGC 7027

• DOI: 10.1086/166147
• Publication Date: 2002-07-26T18:27:27Z
• Authors: J. M. Moorhead; R. P. Lowe; W. H. Wehlau; J.-P. Maillard; P. F. Bernath
• Keywords: Line (geometry)

view Abstract Citations (40) References (33) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Search for HeH + in NGC 7027 Moorhead, J. M. ; Lowe, R. P. Maillard, -P. Wehlau, W. H. Bernath, F. The 3.3-micron spectrum of the planetary nebula was searched R(0) line fundamental vibration-rotation band molecular ion HeH(+) without detecting it. upper limit detection is 3.7 x 10 to -14th ergs/sq cm per sec, an improvement excess 100 over previous published attempts. This low when compared expectations based on analysis processes gaseous nebulas. Likely causes are incorrect radiative association rates or inadequate representation nebular size density distribution outer boundary model used flux prediction. Publication: Astrophysical Journal Pub Date: March 1988 DOI: 10.1086/166147 Bibcode: 1988ApJ...326..899M Keywords: Abundance; Helium; Hydrides; Line Spectra; Molecular Ions; Planetary Nebulae; Bandwidth; Doppler Effect; Oscillations; Astrophysics; MOLECULAR PROCESSES; NEBULAE: ABUNDANCES; INDIVIDUAL NUMBER: 7027; PLANETARY full text sources ADS | data products SIMBAD (2)