The Fundamental Plane of Bulges at Intermediate Redshift

Details The Fundamental Plane of Bulges at Intermediate Redshift The Fundamental Plane of Bulges at Intermediate Redshift

2007-09-12

arxiv.org/abs/0709.1737v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures. To appear in the Proceedings of the IAU Symposium 245, "Formation and Evolution of Galaxy Bulges", held at

Scientific paper

10.1017/S1743921308018322

We report on a new study aimed at understanding the diversity and evolutionary properties of distant galactic bulges in the context of well-established trends for pure spheroidal galaxies. Bulges have been isolated for a sample of 137 spiral galaxies in the GOODS fields within the redshift range 0.1 < z < 1.2. Using proven photometric techniques we determine for each galaxy the characteristic parameters (size, surface brightness, profile shape) in the 4 GOODS-ACS imaging bands of both the disk and bulge components. Using the DEIMOS spectrograph on Keck, precision stellar velocity dispersions were secured for a sizeable fraction of the bulges. This has enabled us to compare the Fundamental Plane of our distant bulges with that of field spheroidal galaxies in a similar redshift range. Bulges in spiral galaxies with a bulge-to-total luminosity ratio (B/T) > 0.2 show very similar patterns of evolution to those seen for low luminosity spheroidals. To first order, their recent mass assembly histories are equivalent.

Affiliated with

Also associated with

No associations

Rating

The Fundamental Plane of Bulges at Intermediate Redshift 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 The Fundamental Plane of Bulges at Intermediate Redshift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Fundamental Plane of Bulges at Intermediate Redshift will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-21642