Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Vlajic, Marija"'
Autor:
Streich, David, de Jong, Roelof S., Bailin, Jeremy, Goudfrooij, Paul, Radburn-Smith, David, Vlajic, Marija
The determination of stellar metallicity and its gradient in external galaxies is a difficult task, but crucial for the understanding of galaxy formation and evolution. The color of the Red Giant Branch (RGB) can be used to determine metallicities of
Externí odkaz:
http://arxiv.org/abs/1401.2847
Autor:
Monachesi, Antonela, Bell, Eric F., Radburn-Smith, David J., de Jong, Roelof S., Bailin, Jeremy, Dalcanton, Julianne J., Holwerda, Benne W., Ford, H. Alyson, Streich, David, Vlajic, Marija, Zucker, Daniel B.
We report the discovery of a new faint dwarf galaxy, GHOSTS I, using HST/ACS data from one of our GHOSTS (Galaxy Halos, Outer disks, Substructure, Thick disk, and Star clusters) fields. Its detected individual stars populate an approximately one magn
Externí odkaz:
http://arxiv.org/abs/1312.0602
Autor:
Monachesi, Antonela, Bell, Eric F., Radburn-Smith, David, Vlajic, Marija, de Jong, Roelof S., Bailin, Jeremy, Dalcanton, Julianne J., Holwerda, Benne W., Streich, David
We study the properties of the stellar populations in M81's outermost part, which hereafter we will term the stellar halo, using HST ACS/WFC observations of 19 fields from the GHOSTS survey. The observed fields probe the stellar halo out to a project
Externí odkaz:
http://arxiv.org/abs/1302.2626
Autor:
Radburn-Smith, David J., Roskar, Rok, Debattista, Victor P., Dalcanton, Julianne J., Streich, David, de Jong, Roelof S., Vlajic, Marija, Holwerda, Benne W., Purcell, Chris W., Dolphin, Andrew E., Zucker, Daniel B.
We analyzed the radial surface brightness profile of the spiral galaxy NGC 7793 using HST/ACS images from the GHOSTS survey and a new HST/WFC3 image across the disk break. We used the photometry of resolved stars to select distinct populations coveri
Externí odkaz:
http://arxiv.org/abs/1206.1057
Studies of outer regions of spirals disks are fundamental to our understanding of both the process of galaxy assembly and the subsequent secular evolution of galaxies. In an earlier series of papers we explored the extent and abundance gradient in th
Externí odkaz:
http://arxiv.org/abs/1101.0607
Autor:
Vlajić, Marija
Recent studies of outer spiral disks have given rise to an abundance of new results. We discuss the observational and theoretical advances that have spurred the interest in disk outskirts, as well as where we currently stand in terms of our understan
Externí odkaz:
http://arxiv.org/abs/1003.2565
Publikováno v:
Astrophys.J.697:361-372,2009
In earlier work, we showed for the first time that the resolved stellar disk of NGC 300 is very extended with no evidence for truncation, a phenomenon that has since been observed in other disk galaxies. We revisit the outer disk of NGC 300 in order
Externí odkaz:
http://arxiv.org/abs/0903.1855
We have used the Gemini Multi-object Spectrograph (GMOS) on the Gemini South 8m telescope in exceptional conditions (0.6" FWHM seeing) to observe the outer stellar disk of the Sculptor group galaxy NGC 300 at two locations. At our point source detect
Externí odkaz:
http://arxiv.org/abs/astro-ph/0503488
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