Spin-down of the white dwarf in the DQ Herculis system FO Aquarii (H2215-086)

Details Spin-down of the white dwarf in the DQ Herculis system FO Aquarii (H2215-086) Spin-down of the white dwarf in the DQ Herculis system FO Aquarii (H2215-086)

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.228..193s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 228, Sept. 1, 1987, p. 193-202.

Astronomy and Astrophysics

Astronomy

25

Angular Velocity, Ephemerides, Stellar Magnetic Fields, Stellar Rotation, Stellar Spectra, White Dwarf Stars, Light Curve, Orbital Elements, Stellar Mass, Stellar Spectrophotometry

Scientific paper

High-speed photometry of FO Aqr (H2215-086) has been obtained in order to update the ephemerides for the orbital and 21 min periodicities. The analysis yields a refined orbital period P = 0.168018(1) day with no evidence for a period change. The data show that the period of the 21 min optical modulation is increasing as reported by Pakull & Beuermann (1987). This period change is interpreted as spin-down of the white dwarf. The authors find that P= (8.0±1.1)×10-11. This result yields an ephemeris for the times of maxima of the 21 min optical modulation. The authors conclude by discussing the implications of their Pmeasurement for constraining the magnetic field of the white dwarf.

Affiliated with

Also associated with

No associations

Rating

Spin-down of the white dwarf in the DQ Herculis system FO Aquarii (H2215-086) 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 Spin-down of the white dwarf in the DQ Herculis system FO Aquarii (H2215-086), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin-down of the white dwarf in the DQ Herculis system FO Aquarii (H2215-086) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1676491