18 papers · 1 filter
FIGGS: Faint Irregular Galaxies GMRT Survey - Overview, observations and first results
Ayesha Begum, Jayaram N. Chengalur, I. D. Karachentsev +2
The Faint Irregular Galaxies GMRT Survey (FIGGS) is a Giant Metrewave Radio Telescope (GMRT) based HI imaging survey of a systematically selected sample of extremely faint nearby d…
Baryonic Tully-Fisher Relation for Extremely Low Mass Galaxies
Ayesha Begum, Jayaram N. Chengalur, I. D. Karachentsev +1
We study Tully-Fisher relations for a sample that combines extremely faint (M_B > -14.0) galaxies along with bright (i.e. L_*) galaxies. Accurate (~ 10%) distances, I band photomet…
Photometric properties of Local Volume dwarf galaxies
M. E. Sharina, I. D. Karachentsev, A. E. Dolphin +9
We present surface photometry and metallicity measurements for 104 nearby dwarf galaxies imaged with the Advanced Camera for Surveys and Wide Field and Planetary Camera 2 aboard th…
VLT Spectroscopy of Globular Clusters in Low Surface Brightness Dwarf Galaxies
Thomas H. Puzia, Margarita E. Sharina
We present VLT/FORS2 spectroscopic observations of globular clusters (GCs) in five low surface brightness (LSB) dwarf galaxies: KK211 and KK221, which are both dwarf spheroidal sat…
A globular cluster in the dwarf galaxy Sextans B
M. E. Sharina, Th. H. Puzia, A. S. Krylatyh
We present spectroscopic observations of a massive globular cluster in the dwarf irregular galaxy Sextans B, discovered by us on Hubble Space Telescope Wide Field and Planetary Cam…
Ages, Metallicities, and [alpha/Fe] ratios of globular clusters in NGC 147, NGC 185, and NGC 205
M. E. Sharina, V. L. Afanasiev, T. H. Puzia
We present measurements of ages, metallicities, and [alpha/Fe] ratios for 16 globular clusters (GC) in NGC 147, NGC 185, and NGC 205 and of the central regions of the diffuse galax…