3 papers
astro-ph2003
The near-IR luminosity-metallicity relationship for dwarf irregular galaxies
Ivo Saviane, R. Riegerbauer, E. V. Held +6
We briefly describe our on-going investigation of the near-IR luminosity-metallicity relationship for dwarf irregular galaxies in nearby groups of galaxies. The motivations of the…
astro-ph2002
T Tauri Stars in the Small Magellanic Cloud
Valentin D. Ivanov, Ray Jayawardhana
The Small Magellanic Cloud (SMC) is an excellent laboratory to study the formation of solar-mass stars in a low-metallicity environment, similar to the conditions expected in the e…
astro-ph2000
Near Infrared Photometry of Galactic Globular Clusters M56 and M15. Extending the Red Giant Branch vs. Metallicity Calibration Towards Metal Poor Systems
Valentin D. Ivanov, Jordanka Borissova, Almudena Alonso-Herrero +1
Infrared JKs-band photometry of the Galactic globular clusters M15 and, for the first time, M56 is presented. We estimated the reddening (E(B-V)=0.18+/-0.08 mag) and distance modul…