Add to ORKGThe results of a medium resolution near-infrared spectral survey of 18 post-AGB candidate stars are presented. Most of the stars have near-infrared hydrogen lines in absorption, which is normal for their spectral types. Three stars, HD 101584, HD 179821 and HD 170756 have the CO first overtone bands in emission; in two of these the emission is variable. It is suggested that the CO emission is the result of post-AGB mass loss. HD 52961 shows the rarely occurring 3.5 mu m emission feature and is only the fourth object in which this feature has been detected.</p
Recent improvements in infrared detector arrays make it possible for the first time to conduct detai...
An analysis of high-resolution near-infrared spectra of a sample of 45 asymptotic giant branch (AGB)...
Detailed atmospheric abundances have been calculated for a sample of A-G supergiant stars with IR f...
The results of a medium resolution near-infrared spectral survey of 18 post-AGB candidate stars are ...
We present a list of post-AGB stars showing molecular line absorption and emission in the optical sp...
We investigate the infrared properties of the IRAS sources not confirmed as PNe in Van de Steene & P...
Abstract. Spectral types are determined from low resolu-tion optical spectra of 40 IRAS sources with...
Aims. We study the optical spectral properties of a sample of stars showing far infrared colours sim...
Context. The asymptotic giant branch (AGB) phase is characterised by substantial mass loss that is ...
We have carried out classification spectroscopy (R~2000) of a sample of about 100 IRAS sources with ...
Context. A sample of 27 sources, cataloged as pre-main sequence stars by the Pico dos Dias Survey (P...
We present near-IR spectroscopy of a sample of 30 IRAS sources recently identified as late AGB stars...
Aims.We study the optical spectral properties of a sample of stars showing far infrared colours sim...
Aims. A high spectral resolution investigation of diffuse interstellar bands (DIBs) in the near-infr...
Context. There is a class of binary post-asymptotic giant branch (post-AGB) stars that exhibit remar...
Recent improvements in infrared detector arrays make it possible for the first time to conduct detai...
An analysis of high-resolution near-infrared spectra of a sample of 45 asymptotic giant branch (AGB)...
Detailed atmospheric abundances have been calculated for a sample of A-G supergiant stars with IR f...
The results of a medium resolution near-infrared spectral survey of 18 post-AGB candidate stars are ...
We present a list of post-AGB stars showing molecular line absorption and emission in the optical sp...
We investigate the infrared properties of the IRAS sources not confirmed as PNe in Van de Steene & P...
Abstract. Spectral types are determined from low resolu-tion optical spectra of 40 IRAS sources with...
Aims. We study the optical spectral properties of a sample of stars showing far infrared colours sim...
Context. The asymptotic giant branch (AGB) phase is characterised by substantial mass loss that is ...
We have carried out classification spectroscopy (R~2000) of a sample of about 100 IRAS sources with ...
Context. A sample of 27 sources, cataloged as pre-main sequence stars by the Pico dos Dias Survey (P...
We present near-IR spectroscopy of a sample of 30 IRAS sources recently identified as late AGB stars...
Aims.We study the optical spectral properties of a sample of stars showing far infrared colours sim...
Aims. A high spectral resolution investigation of diffuse interstellar bands (DIBs) in the near-infr...
Context. There is a class of binary post-asymptotic giant branch (post-AGB) stars that exhibit remar...
Recent improvements in infrared detector arrays make it possible for the first time to conduct detai...
An analysis of high-resolution near-infrared spectra of a sample of 45 asymptotic giant branch (AGB)...
Detailed atmospheric abundances have been calculated for a sample of A-G supergiant stars with IR f...