Bibcode
Muñoz Tuñón, C.; Beckman, J.; Prieto, M.
Bibliographical reference
Revista Mexicana de Astronomia y Astrofisica, Vol. 14, No. 1, p. 144 - 148
Advertised on:
5
1987
Citations
2
Refereed citations
2
Description
Using spectroscopic observations at relatively high resolution
(Δλ ≡ 0.35 Å) in the region within 30
arcseconds of the nucleus of NGC 6946 the authors have found clear
evidence of a strong expansion, with velocities of order 100 km
s-1. By comparison with intensity maps in H I (21 cm)
H2 (CO 2.6 mm) and Hα taken from the literature the
authors derive a picture of a starburst which contains
⪆104 O V stars. The gas in the most neutral region has
been largely used in star formation, while a placental molecular cloud
remains around the starburst. The authors propose a mechanism for
maintaining the starburst, and using the molecular mass for progressive
star formation.