Star formation in the spiral arms of NGC 4321. I - CO observations

Bibcode
1992AJ....103..429C
DOI
10.1086/116072
Cepa, J.; Beckman, J. E.; Knapen, J. H.; Nakai, N.; Kuno, N.
Referencia bibliográfica

Astronomical Journal (ISSN 0004-6256), vol. 103, Feb. 1992, p. 429-435, 683. Research supported by DGICYT and EEC.

Fecha de publicación:
2
1992
Número de autores
5
Número de autores del IAC
3
Número de citas
17
Número de citas referidas
16
Descripción
Several positions in the southern spiral arm and the interarm disk of NGC 4321 have been observed in CO (J = 1 to 0) using the NRO 45 m telescope at Nobeyama, Japan. The analysis shows evidence for streaming motions in the arms, together with an exponential radial decrease of both the integrated CO emission and the velocity width at the observed positions, with comparable scale lengths. The arm/interarm contrast ratio of CO integrated emission shows values ranging from less than one to four.
Tipo
Con árbitro
Galaxias espirales
Formación estelar
Regiones H I
Altura de escala

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