Observation of the Spin-Forbidden Cameron Bands of CO in the Ultraviolet Emission Spectrum of the Red Rectangle

Glinski, Robert J.; Nuth, Joseph A.; Reese, Marty D.; Sitko, Michael L.

doi:10.1086/310205

Cited by 14 publications

(23 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is included in column (3) of Table 1. The distribution with v ′ is much more like that observed by Glinski et al (1996).…”

Section: Spectroscopysupporting

confidence: 64%

“…The Red Rectangle is unique amongst astrophysical objects in the nature of its spectrum. Sitko (1983) and Glinski et al (1996) have identified in it the fourth positive band system and the Cameron band system of carbon monoxide. The fourth positive system is an allowed transition and is almost certainly due to fluorescence (Glinski et al 1996), but the upper level of the Cameron system is the a 3 Π state of CO and the transition is forbidden.…”

Section: Introductionmentioning

confidence: 99%

“…Sitko (1983) and Glinski et al (1996) have identified in it the fourth positive band system and the Cameron band system of carbon monoxide. The fourth positive system is an allowed transition and is almost certainly due to fluorescence (Glinski et al 1996), but the upper level of the Cameron system is the a 3 Π state of CO and the transition is forbidden. The Cameron system is present in the dayglow of Mars (Barth et al 1972), where it has been attributed to the dissociative recombination of photodissociation of CO 2 and impact excitation of CO by solar‐induced photoelectrons (Dalgarno, Degges & Stewart 1970).…”

Section: Introductionmentioning

confidence: 99%

“…The Cameron system is present in the dayglow of Mars (Barth et al 1972), where it has been attributed to the dissociative recombination of photodissociation of CO 2 and impact excitation of CO by solar‐induced photoelectrons (Dalgarno, Degges & Stewart 1970). Glinski et al (1996) have suggested that charged particles of energies 7–15 eV, assumed to be the high‐energy component of a broad distribution of energetic particles, are responsible. We argue here that the upper state of the Cameron band emission is produced by dissociative recombination of HCO + :…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The CO Cameron band emission in the Red Rectangle

Yan

Dalgarno

Klemperèr

et al. 2000

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

The origin of the strong CO Cameron band emission in the Red Rectangle is investigated. From a comparison of laboratory spectroscopic data and astronomical observations in combination with chemical modelling, it is concluded that the Cameron band emission of CO originates from the dissociative recombination of HCO+, and its intensity provides a measure of the product of the density of HCO+ ions and the electron density, integrated along the line of sight.

show abstract

“…It is included in column (3) of Table 1. The distribution with v ′ is much more like that observed by Glinski et al (1996).…”

Section: Spectroscopysupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The CO Cameron band emission in the Red Rectangle

Yan

Dalgarno

Klemperèr

et al. 2000

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

show abstract

“…The multi-wavelength panoply of emission lines and bands includes: UV Cameron bands of CO (phosphorescent highexcitation levels likely to arise from the dissociation of CO 2 ), and OH bands (Sitko 1983;Glinski et al 1996;Glinski & Nuth 1997); Ca H and K; optical CH + lines (Balm & Jura 1992); the broad extended red emission (ERE), often attributed to photoluminescence of hydrogenated carbon particles (e.g. Witt & Boroson 1990), but also to crystalline nanoparticles of pure silicon (Witt et al 1998;Ledoux et al 1998).…”

Section: Introductionmentioning

confidence: 99%

The ERE of the “Red Rectangle" revisited

Winckel

Cohen

Gull

2002

A&A

122

View full text Add to dashboard Cite

Abstract. We present in this paper high signal-to-noise long-slit optical spectra of the Extended Red Emission (ERE) in the "Red Rectangle" (RR) nebula. These spectra, obtained at different positions in the nebula, reveal an extremely complex emission pattern on top of the broad ERE continuum. It is well known that three features converge at large distance from the central object, in wavelength and profile to the diffuse interstellar bands (DIBs) at λ5797, λ5849.8 , and λ6614 Å (e.g. Sarre et al. 1995). In this paper we give a detailed inventory of all spectral subfeatures observed in the 5550-6850 Å spectral range. Thanks to our high S /N spectra, we propose 5 new features in the RR that can be associated with DIBs. For the 5550-6200 Å spectral range our slit position was on top of the NE spike of the X shaped nebula. A detailed description of the spatial profile-changes is given of the strongest features revealing that even far out in the nebula at 24 from the central star, there remains a small shift in wavelength of 1 respectively 2 Å between the ERE subfeatures and the DIB wavelengths of λ5797.11 and λ5849.78 Å.

show abstract

Current assessment of the Red Rectangle band problem

Glinski

Michaels

Anderson

et al. 2009

Astrophys Space Sci

View full text Add to dashboard Cite

In this paper we discuss our insights into several key problems in the identification of the Red Rectangle Bands (RRBs). We have combined three independent sets of observations in order to try to define the constraints guiding the bands. We provide a summary of the general behavior of the bands and review the evidence for a molecular origin of the bands. The extent, composition, and possible absorption effects of the bands are discussed. Comparison spectra of the strongest band obtained at three different spectral resolutions suggests that an intrinsic line width of individual rotational lines can be deduced.Spectroscopic models of several relatively simple molecules were examined in order to investigate where the current data are weak. Suggestions are made for future studies to enhance our understanding of these enigmatic bands.

show abstract

Observation of the Spin-Forbidden Cameron Bands of CO in the Ultraviolet Emission Spectrum of the Red Rectangle

Cited by 14 publications

References 38 publications

The CO Cameron band emission in the Red Rectangle

The CO Cameron band emission in the Red Rectangle

The ERE of the “Red Rectangle" revisited

Current assessment of the Red Rectangle band problem

Contact Info

Product

Resources

About