PG1159-035: a new, hot, non-DA pulsating degenerate
Description
The star was observed with a computer-controlled high-speed photometer. The light curve showed nearly sinusoidal variations with a period of about 8 minutes and a peak-to-peak amplitude of about 0.02 magnitude. Power spectra of the light curves were calculated. They showed peaks corresponding to periods of 460 and 539 seconds. The effective temperature of the star was found to exceed 5 x 104 K; lack of circular polarization indicated that the star does not have a large surface magnetic field. The surface gravity is indeterminate, but probably lower than log g = 8. It is suggested that this star is pulsating in some manner; it is likely to change rapidly. 3 figures
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A02/MF A01.
Files
Restricted
The record is publicly accessible, but files are restricted to users with access.
Additional details
Publishing Information
- Imprint Pagination
- 6 p.
- Report number
- LA-UR--79-2611
Conference
- Title
- IAU colloquium on the structure of white dwarfs and variable degenerates.
- Dates
- 30 Jul - 3 Aug 1979.
- Place
- Rochester, NY, USA.
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11512131
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- EXPERIMENTAL DATA; GRAPHS; GRAVITATIONAL FIELDS; MAGNETIC FIELDS; PHOTOMETRY; POLARIZATION; PULSATIONS; VARIABLE STARS
- Descriptors DEC
- DATA; DATA FORMS; INFORMATION; NUMERICAL DATA; STARS
Optional Information
- Secondary number(s)
- CONF-790755--3.