| DOI | Trouver le DOI : https://doi.org/10.1093/mnras/stt1625 |
|---|
| Auteur | Rechercher : Tan, Boon-Kok; Rechercher : Leech, J.; Rechercher : Rigopoulou, D.; Rechercher : Warren, B. E.; Rechercher : Wilson, C. D.; Rechercher : Attewell, D.; Rechercher : Azimlu, M.; Rechercher : Bendo, G. J.; Rechercher : Butner, H. M.; Rechercher : Brinks, E.; Rechercher : Chanial, P.; Rechercher : Clements, D. L.; Rechercher : Heesen, V.; Rechercher : Israel, F.; Rechercher : Knapen, J. H.; Rechercher : Matthews, H. E.1; Rechercher : Mortier, A. M. J.; Rechercher : Mühle, S.; Rechercher : Sánchez-Gallego, J. R.; Rechercher : Tilanus, R. P. J.; Rechercher : Usero, A.; Rechercher : van der Werf, P.; Rechercher : Zhu, M. |
|---|
| Affiliation | - Conseil national de recherches du Canada. Infrastructure scientifique nationale
|
|---|
| Format | Texte, Article |
|---|
| Résumé | We present ¹²CO J = 3→2 maps of NGC 2976 and NGC 3351 obtained with the James Clerk Maxwell Telescope (JCMT), both early targets of the JCMT Nearby Galaxy Legacy Survey (NGLS). We combine the present observations with ¹²CO J = 1→0 data and find that the computed ¹²CO J = 3→2 to ¹²CO J = 1→0 line ratio (R31) agrees with values measured in other NGLS field galaxies. We compute the MH2 value and find that it is robust against the value of R31 used. Using HI data from The HI Nearby Galaxy Survey, we find a tight correlation between the surface density of H2 and star formation rate density for NGC 3351 when ¹²CO J = 3→2 data are used. Finally, we compare the ¹²CO J = 3→2 intensity with the polycyclic aromatic hydrocarbon (PAH) 8 μm surface brightness and find a good correlation in the high surface brightness regions. We extend this study to include all 25 Spitzer Infrared Nearby Galaxies Survey galaxies within the NGLS sample and find a tight correlation at large spatial scales. We suggest that both PAH 8 μm and ¹²CO J = 3→2 are likely to originate in regions of active star formation. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. |
|---|
| Date de publication | 2013-10-03 |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Numéro NPARC | 21271826 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | baaf4887-d6a6-4c7a-a076-d802a69064a8 |
|---|
| Enregistrement créé | 2014-04-23 |
|---|
| Enregistrement modifié | 2020-04-22 |
|---|
