Astronomy and Astrophysics – Astronomy
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.4003k&link_type=abstract
American Astronomical Society Meeting 210, #40.03; Bulletin of the American Astronomical Society, Vol. 39, p.154
Astronomy and Astrophysics
Astronomy
Scientific paper
A supergiants are objects in transitions from the blue to the red (and vice versa) in the uppermost HRD. They are the intrinsically brightest "normal" stars at visual light with absolute visual magnitudes up to -9, and thus, ideal to study young stellar populations in galaxies beyond the Local Group to determine chemical composition and evolution, interstellar extinction and reddening laws and distances. The talk presents most recent results on the quantitative spectral analysis of such objects based on medium and low resolution spectra obtained with the ESO VLT and Keck. We will describe the analysis method, discuss the determination of metallicity and metallicity gradients, and we will introduce a new method to measure accurate extragalactic distances based on the stellar gravities and effective temperatures obtained.
No associations
LandOfFree
Extragalactic Stellar Astronomy - Quantitative Spectroscopy of A Supergiants in Galaxies beyond the Local Group 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 Extragalactic Stellar Astronomy - Quantitative Spectroscopy of A Supergiants in Galaxies beyond the Local Group, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extragalactic Stellar Astronomy - Quantitative Spectroscopy of A Supergiants in Galaxies beyond the Local Group will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1030560