Ultraviolet observations of Population 2 Cepheids

Details Ultraviolet observations of Population 2 Cepheids Ultraviolet observations of Population 2 Cepheids

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..348b&link_type=abstract

In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 348-351 (SEE N85-20961 1

Astronomy and Astrophysics

Astronomy

1

Cepheid Variables, Energy Distribution, Iue, Metallic Stars, Spectrum Analysis, Ultraviolet Spectra, Metallic Plasmas, Stellar Structure, Ultraviolet Astronomy, Variable Stars

Scientific paper

The two Population II Cepheids, ST Pup and W Vir, have nearly the same length of period and B-V colors, yet spectral types are very different, indicating large differences in metal abundances. The authors have determined metal abundances, Teff and the color excess from the observed discontinuities at 1700 Å, at 2600 Å, the ultraviolet to visual colors, and the 2400 Å absorption band. The observations for ST Pup were made shortly after maximum light. For ST Pup the authors found E(B-V) = 0.2, Teff = 6600±100K at 0.5 days after maximum. A metal abundance of [A/H] = -1.7±0.2 was determined. For W Vir a metal abundance of [A/H] ≡ -0.9 is suggested.

Affiliated with

Also associated with

No associations

Rating

Ultraviolet observations of Population 2 Cepheids 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 Ultraviolet observations of Population 2 Cepheids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultraviolet observations of Population 2 Cepheids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-738514