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The Next Generation Virgo Cluster Survey. XVII. A Search for Planetary Nebulae in Virgo Cluster Globular Clusters
Weijia Sun, Eric W. Peng, Youkyung Ko +11
The occurrence of planetary nebulae (PNe) in globular clusters (GCs) provides an excellent chance to study low-mass stellar evolution in a special (low-metallicity, high stellar de…
The Carnegie-Chicago Hubble Program. VII. The Distance to M101 via the Optical Tip of the Red Giant Branch Method
Rachael L. Beaton, Mark Seibert, Dylan Hatt +9
The Carnegie-Chicago Hubble Program (CCHP) is building a direct path to the Hubble constant (H0) using Population II stars as the calibrator of the SN Ia-based distance scale. This…
The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
Wendy L. Freedman, Barry F. Madore, Dylan Hatt +10
We present a new and independent determination of the local value of the Hubble constant based on a calibration of the Tip of the Red Giant Branch (TRGB) applied to Type Ia superno…
The Carnegie Chicago Hubble Program VI: Tip of the Red Giant Branch Distances to M66 and M96 of the Leo I Group
Taylor J. Hoyt, Wendy L. Freedman, Barry F. Madore +8
We determine the distances to the Type Ia Supernova host galaxies M66 (NGC 3627) and M96 (NGC 3368) of the Leo I Group using the Tip of the Red Giant Branch (TRGB) method. We targe…
A Wide-field Photometric Survey of Globular Clusters in the Peculiar Early-type Galaxy M85
Youkyung Ko, Myung Gyoon Lee, Hong Soo Park +4
We survey globular clusters (GCs) in M85 using -band images of a field obtained with the MegaCam at the 3.6 m Canada-France-Hawaii Telescope. We i…