| Title | Infrared photometry of the Local Group dwarf irregular galaxy IC 10 |
| Authors | Borissova, J.; Georgiev, L.; Rosado, M.; Kurtev, R.; Bullejos, A.; Valdez-Gutiérrez, M. |
| Bibcode | 2000A&A...363..130B Search ADS ↗ |
| Abstract | We present near infrared JHK photometry for the central area of the irregular dwarf galaxy IC 10. Red stellar population of IC 10 contains young (10-50 Myr) massive red supergiants. Most of AGB stars are younger than 1 Gyr and have masses up to 12 Msun. Comparing the red supergiants of IC 10 and IC 1613 we have determined the reddening of E(B-V)=1.05+/-0.10 and the dereddened distance modulus (m-M)0=23.86+/-0.12 mag of Population I stars in IC 10. Detection of six Brgamma emission structures clearly outline two star forming regions in the central area of IC 10. There is no H2 emission down to 4.65 10-16 erg-1 cm-2\ arcsec-2 indicating that the dominant excitation mechanism of the molecular gas is from UV radiation from hot young stars. From the comparison of Brgamma and Hα fluxes, we derive average extinction toward the star forming regions E(B-V)Hα= 1.8+/-0.2. The summarized SFR derived from six Hα and Brgamma emission structures in our field of view is 0.6 Msun year-1 |
| Objects | 1 Objects Search NED ↙ |
