The growth of brightest cluster galaxies through mergers
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D.N. Viljoen D. Gilbank S.I. Loubser. Using the RSS longslit (with PG 1300 grating) to determine accurate relative velocity differences between merging candidates. The growth of Brightest Cluster Galaxies through mergers. SALT. Verification of the technique on nearby SDSS merger.

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The growth of Brightest Cluster Galaxies through mergers.

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The growth of brightest cluster galaxies through mergers

D.N. Viljoen D. Gilbank S.I. Loubser

Using the RSS longslit (with PG 1300 grating) to determine accurate relative velocity differences between merging candidates.

The growth of Brightest Cluster Galaxiesthrough mergers.

SALT

Verification of the technique on nearby SDSS merger.

z ~ 0.08

∆V = 2.0 ± 37.0 km/s

SDSS


The growth of brightest cluster galaxies through mergers

  • S/N in RSS observations is factor of ~2 lower than predicted by

  • RSS simulator (using v3.91).

  • 15 min exposure on RSS is approx. equivalent to a 45 min SDSS exposure.

  • Pilot project of 10 galaxies awarded time.

  • 4 galaxies observed.

  • - 3 not useable due to poor slit alignment and SALTICAM problems.


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