A globular cluster in the dwarf galaxy Sextans B

Details A globular cluster in the dwarf galaxy Sextans B A globular cluster in the dwarf galaxy Sextans B

2007-04-30

arxiv.org/abs/0704.3908v1

Astronomy and Astrophysics

Astrophysics

13 pages, 4 figures, 3 tables, Astrophysical Bulletin, accepted

Scientific paper

10.1134/S1990341307030029

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 Camera 2 (HST WFPC2) images. Long-slit spectra were obtained with the SCORPIO spectrograph on the the 6-m telescope at the Special Astrophysical observatory of the Russian Academy of Sciences. We determine age, metallicity and alpha-element abundance ratio for the globular cluster to be $ 2 \pm 1$ Gyr, $-1.35 \pm 0.25$ dex, and $ 0.1 \pm 0.1$ dex, respectively. Main photometric and structural parameters of it were determined using our surface photometry on the HST images. The mass ($\sim 10^5 M \sun$), luminosity and structural parameters appear to be typical for the globular clusters in our own Galaxy. Our findings shed a new light on the evolutionary history of Sextans B.

Affiliated with

Also associated with

No associations

Rating

A globular cluster in the dwarf galaxy Sextans B does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A globular cluster in the dwarf galaxy Sextans B, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A globular cluster in the dwarf galaxy Sextans B will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-415245