Elena Sabbi, Daniela Calzetti, et al.
ApJS
Surface photometry of the barred galaxy NGC 1300 in B and I bands reveals an outer pseudo-ring with star formation knots located at the positions of 108 M⊙ H I clouds previously mapped by M. England with the VLA. The age of the ring from the B-I colors is estimated to be ∼109 yr, and the age of the star formation knots is estimated to be ∼2 × 107 yr. Stability considerations suggest that the H I clouds formed by gravitational condensation along the ring periphery. If the outer extent of the ring is at the outer Lindblad resonance, then the bar ends slightly outside the inner 4:1 resonance and corotation is at the position of the break and dust lane crossing midway out in the spiral arms. © 1996. The American Astronomical Society. All rights reserved.
Elena Sabbi, Daniela Calzetti, et al.
ApJS
Debra Meloy Elmegreen, Bruce G. Elmegreen
Astrophysical Journal Letters
Bruce G. Elmegreen, Debra Meloy Elmegreen
ApJ
Elena Sabbi, Daniela Calzetti, et al.
ApJS