Evolutionary Models of Red Supergiants: Evidence for A Metallicity-dependent Mixing Length and Implications for Type IIP Supernova Progenitors
- S. ChunSung-Chul YoonMoo-Keon JungDongkeon KimJihoon Kim
- 9 November 2017
Physics
Recent studies on the temperatures of red supergiants (RSGs) in the local universe provide us with an excellent observational constraint on RSG models. We calibrate the mixing length parameter by…
A WIDE-FIELD PHOTOMETRIC SURVEY FOR EXTRATIDAL TAILS AROUND FIVE METAL-POOR GLOBULAR CLUSTERS IN THE GALACTIC HALO
- S. ChunJae-Woo Kim Y. Sohn
- 17 December 2009
Physics
Wide-field deep g′r′i′ images obtained with the Megacam of the Canada–France–Hawaii Telescope are used to investigate the spatial configuration of stars around five metal-poor globular clusters M15,…
LOW-RESOLUTION SPECTROSCOPY FOR THE GLOBULAR CLUSTERS WITH SIGNS OF SUPERNOVA ENRICHMENT: M22, NGC 1851, AND NGC 288
- D. LimSangil Han Christian I. Johnson
- 4 December 2014
Physics
There is increasing evidence for the presence of multiple red giant branches (RGBs) in the color–magnitude diagrams of massive globular clusters (GCs). In order to investigate the origin of this…
Near-infrared properties of metal-poor globular clusters in the Galactic bulge direction
Aims. J, H ,a ndK � images obtained from the near-infrared imager CFHTIR on the Canada-France-Hawaii Telescope are used to derive the morphological parameters of the red giant branch (RGB) in the…
Near-IR TRGB Distance Modulus of Dwarf Irregular Galaxy IC 1613
The magnitudes of the red giant branch tip (TRGB) and the distance moduli of the nearby dwarf irregular galaxy IC 1613 have been determined from the near-infrared luminosity functions (LFs) of the…
Near-infrared properties of asymptotic giant branch stars in nearby dwarf elliptical galaxy NGC 205
We investigated the distribution of resolved asymptotic giant branch (AGB) stars over a much larger area than covered by previous near-infrared studies in the nearby dwarf elliptical galaxy NGC 205.…
Intensive Monitoring Survey of Nearby Galaxies
- M. ImChangsu Choi Shuhrat Eghamberdiev
- 1 October 2016
Physics
Red Supergiant Stars in IC 1613 and Metallicity-dependent Mixing Length in the Evolutionary Model
- S. ChunSung-Chul YoonHeeyoung OhByeong-Gon ParkN. Hwang
- 19 October 2022
Physics
We report a spectroscopic study on red supergiant stars (RSGs) in the irregular dwarf galaxy IC 1613 in the Local Group. We derive the effective temperatures (T eff) and metallicities of 14 RSGs by…
The JHK S Magnitudes of the Red Giant Branch Tip and the Distance Moduli of Nearby Dwarf Galaxy NGC 205
We have used the near-infrared photometric data of resolved stars in a nearby dwarf elliptical galaxy NGC 205 to determine the magnitudes of the red giant branch tip (TRGB). By applying…
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