Bibcode
Jones, A. W.; Selby, M. J.; Prieto Munoz, M.; Sanchez Magro, C.
Bibliographical reference
Astronomy and Astrophysics (ISSN 0004-6361), vol. 138, no. 2, Sept. 1984, p. 297-302.
Advertised on:
9
1984
Citations
7
Refereed citations
5
Description
The authors present the results of a survey made at 1.65 μm (H) and
2.2 μm (K) in 15 small areas on the galactic equator between l =
0° and l = 10°. 775 distinct objects were counted in a total
area of 0.17 deg2 to limiting magnitudes H = 10.5 and K = 9.5
(equivalent to detecting M giants at 6 - 7 kpc). Source confusion was
the limiting factor in these crowded fields. The sources account for 40
- 50% of the 2.4 μm surface brightness of the galactic disk. The
central bulge has not been clearly detected. The authors find evidence
for a population (≡1000 deg-2) of luminous, reddened
objects, with a space density of 2×10-4
pc-3, which are probably supergiants within 0°.5 (90 pc)
of the galactic nucleus. The optical counterpart of IRC -20416 is found
to be a faint red star, and not the bright B star listed in the Infrared
Catalogue.