Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.206..611g&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 206, Feb. 1, 1984, p. 611-624.
Astronomy and Astrophysics
Astronomy
8
Astronomical Catalogs, Infrared Astronomy, Stellar Spectrophotometry, Sky Surveys (Astronomy), Spectral Bands, Stellar Magnitude, Tables (Data), Telescopes, Variable Stars
Scientific paper
Observations are made of 85 objects listed as unidentified in the equatorial Infrared Catalogue Number 1 (Sweeney et al., 1978). The observations are made in the JHK bands using a 1-m ground-based telescope. All of the sources are detected, and it is noted that many of them have (H-K) higher than those of interstellar reddened M8 giants and that some of them have already been identified with variables. The data available suggest that the sources with (H-K) excess may all be variable. In addition, an attempt is made to identify all the 88 'unidentified' sources on the Palomar Observatory Sky Survey prints. Of these, 85 are identified with optical objects. The magnitudes for these are estimated in the photographic blue (P) and red (R) colors.
Daniel R. R.
Ghosh Sanjay K.
Iyengar V. K. K.
Rengarajan T. N.
Tandon Shyam N.
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