Further Observations of New Sources in the AFCRL Survey
Abstract
Salient aspects of follow-up observations carried out on new sources discovered earlier in the AFCRL rocket IR sky survey are summarized. Ground-based searches, studies of class properties of the new AFCRL sources (galactic distribution, IR spectra, time variation), and closer examination of some 'unusual objects' are discussed. Brief descriptions are offered of some unusual objects: possible protostars, and specifically CRL 877; H2O masers in the Mon R2 cloud; the Egg Nebula (CRL 2688); CRL 618, with featureless IR spectrum and optical spectrum reminiscent of a planetary nebula; CRL 437 and other objects associated with multiple-reflection nebulae.
- Publication:
-
Infrared and submillimeter astronomy
- Pub Date:
- 1977
- DOI:
- 10.1007/978-94-010-1211-9_3
- Bibcode:
- 1977ASSL...63...25K
- Keywords:
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- Astronomical Catalogs;
- Giant Stars;
- Infrared Astronomy;
- Late Stars;
- Interstellar Masers;
- Nebulae;
- Protostars;
- Sky Surveys (Astronomy);
- Spatial Distribution;
- Astronomy