New Photometry of the Hyades $δ$ Scuti star V777 Tau (71 Tau)
| dc.creator | Krisciunas, Kevin | |
| dc.creator | Simon, Theodore | |
| dc.creator | Crowe, Richard A. | |
| dc.creator | Roberts, Mavourneen | |
| dc.date | 1995-11-21 | |
| dc.date.accessioned | 2026-07-07T02:20:27Z | |
| dc.date.available | 2026-07-07T02:20:27Z | |
| dc.description | 71 Tau was discovered to be a $δ$ Scuti star by Horan (1979, AJ 84, 1770). To our knowledge no other photometry of this star has been published. 71 Tau is the second brightest X-ray source in the Hyades and has been shown to be variable by as much as 30 \% at ultraviolet wavelengths near 1700 to 2000 Å. We find that the best two-frequency fit to the new photometry is obtained with $f_{1}$ = 5.485 and $f_{2}$ = 7.637 d$^{-1}$, with amplitudes $A_{1}$ = 6.0 and $A_{2}$ = 3.4 mmag, respectively. However, one-day aliases of these frequencies {\em could} be the true values. (For $δ$ Scuti stars pulsating radially the ratio of first overtone period to fundamental period is 0.773.) It would be useful to obtain more extensive data runs on this and other $δ$ Scuti stars in the Hyades. | |
| dc.description | 2 pages, Latex; uses IBVS.STY; 3 figures, available via Fax or ftp at ftp://ftp.jach.hawaii.edu/usr/local/ukirt/ftp/kevin ; to appear as Information Bulletin on Variable Stars, No. 4264 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9511094 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9511094 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/10215 | |
| dc.subject | Astrophysics | |
| dc.title | New Photometry of the Hyades $δ$ Scuti star V777 Tau (71 Tau) | |
| dc.type | text |