The infrared spectra of CRL 618 and HD 44179 /CRL 915/

Abstract

view Abstract Citations (107) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The infrared spectra of CRL 618 and HD 44179 (CRL 915). Russell, R. W. ; Soifer, B. T. ; Willner, S. P. Abstract Spectrophotometry from 4 to 8 m is reported for the infrared sources CRL 618 and HD 44179 (CRL 915). In addition, 2-4 m spectrophotometry of CRL 618 is reported. Except for marginal detection of emission lines at 2.1 and 2.45 m, the spectrum of CRL 618 is featureless, consistent with graphite being the major constituent of the circumstellar dust cloud. Strong emission bands at 6.2 m and 7.7 m are found in the spectrum of HD 44179. These bands have been observed previously in NGC 7027 and M82. No positive identification of these bands is made. While both objects probably represent advanced stages of stellar evolution, the substantial differences between CRL 618 and HD 44179 suggest that they are members of different evolutionary sequences. Subject headings: infrared: sources - infrared: spectra - stars: individual Publication: The Astrophysical Journal Pub Date: March 1978 DOI: 10.1086/155937 Bibcode: 1978ApJ...220..568R Keywords: Infrared Spectra; Interstellar Matter; Stellar Evolution; Stellar Spectra; Abundance; Cosmic Dust; Emission Spectra; Stellar Spectrophotometry; Astronomy; Infrared Sources:Infrared Spectra full text sources ADS | data products SIMBAD (3)