Discovery of eleven new ZZ Ceti stars

Details Discovery of eleven new ZZ Ceti stars Discovery of eleven new ZZ Ceti stars

2005-11-29

arxiv.org/abs/astro-ph/0511804v1

Astronomy and Astrophysics

Astrophysics

10 pages, 3 figures, to be published in A&A

Scientific paper

10.1051/0004-6361:20053500

We report the discovery of eleven new ZZ Cetis using telescopes at OPD (Observat\'orio do Pico dos Dias/LNA) in Brazil, the 4.1 m SOAR (Southern Astrophysical Research) telescope at Cerro Pachon, Chile, and the 2.1 m Otto Struve telescope at McDonald observatory. The candidates were selected from the SDSS (Sloan Digital Sky Survey) and SPY (ESO SN Ia progenitor survey), based on their Teff obtained from optical spectra fitting. This selection criterion yields the highest success rate of detecting new ZZ Cetis, above 90% in the Teff range from 12000 to 11000 K. We also report on a DA not observed to vary, with a Teff placing the star close to the blue edge of the instability strip. Among our new pulsators, one is a little bit cooler than this star for which pulsations were not detected. Our observations are an important constraint on the location of the blue edge of the ZZ Ceti instability strip.

Affiliated with

Also associated with

No associations

Rating

Discovery of eleven new ZZ Ceti stars 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 Discovery of eleven new ZZ Ceti stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of eleven new ZZ Ceti stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-715441