2009
DOI: 10.1007/s10509-009-0084-9
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Current assessment of the Red Rectangle band problem

Abstract: 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 spec… Show more

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Cited by 12 publications
(13 citation statements)
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References 41 publications
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“…-The emission bands at ∼5585 and ∼5635 Å that recently were identified as originating from unresolved rovibronic progressions (0-1 and 1-2) within the d 3 Π → a 3 Π Swan system between 3 and 7 (Sarre 2006;Glinski et al 2009;Wehres et al 2010) do not reveal clear bandshifts for increasing offsets. -The stronger emission bands in Fig.…”
Section: An Offset Dependent Cataloguementioning
confidence: 83%
See 1 more Smart Citation
“…-The emission bands at ∼5585 and ∼5635 Å that recently were identified as originating from unresolved rovibronic progressions (0-1 and 1-2) within the d 3 Π → a 3 Π Swan system between 3 and 7 (Sarre 2006;Glinski et al 2009;Wehres et al 2010) do not reveal clear bandshifts for increasing offsets. -The stronger emission bands in Fig.…”
Section: An Offset Dependent Cataloguementioning
confidence: 83%
“…The emission complex around 5800 Å with mainly stronger narrow emission features has been described by Schmidt & Witt (1991), Scarrott et al (1992), Sarre et al (1995), Van Winckel et al (2002), Glinski & Anderson (2002), and Sharp et al (2006). Recently, two of the weaker narrow emission bands have been attributed to C 2 emission features starting from rovibronically excited energy levels (Glinski et al 2009;Wehres et al 2010). The majority of the observed and rotationally unresolved transitions, however, has not been assigned.…”
Section: Introductionmentioning
confidence: 99%
“…46 It was this aspect that led the author and coworkers to investigate the Red Rectangle in some detail. 47,48 Using an integral field unit (IFU) on the Very Large Telescope, we acquired spectra of the nebula across five 11.44 × 7.28 arcsec fields. 47 The spectra were optimized for investigation of the 5800 Å emission feature, but that allowed the detection of the (0,1) Swan band emission near 5635 Å.…”
Section: ■ the Red Rectanglementioning
confidence: 99%
“…A suggestion by Glinski that the carrier could be phosphorescence from C 3 is unlikely, yet the precise position of the lowest triplet state of C 3 remains unknown [105]. It also remains to be proven whether the RRBs actually do converge upon the DIB positions, but nevertheless, the carriers of the RRBs remain undiscovered as of 2010 and still pose a very interesting problem for astronomical spectroscopy [106]. As with the carriers of the DIBs, computation can aid in reducing the size of the field of candidates for experimental investigation.…”
Section: The Red Rectangle Hd44179mentioning
confidence: 99%