other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2004MNRAS.348.1164R - Mon. Not. R. Astron. Soc., 348, 1164-1174 (2004/March-2)
Observations of the pulsating subdwarf B star Feige 48: Constraints on evolution and companions.
REED M.D., KAWALER S.D., ZOLA S., JIANG X.J., DREIZLER S., SCHUH S.L., DEETJEN J.L., KALYTIS R., MEISTAS E., JANULIS R., ALISAUSKAS D., KRZESINSKI J., VUCKOVIC M., MOSKALIK P., OGLOZA W., BARAN A., STACHOWSKI G., KURTZ D.W., GONZALEZ PEREZ J.M., MUKADAM A., WATSON T.K., KOEN C., BRADLEY P.A., CUNHA M.S., KILIC M., KLUMPE E.W., CARLTON R.F., HANDLER G., KILKENNY D., RIDDLE R., DOLEZ N., VAUCLAIR G., CHEVRETON M., WOOD M.A., GRAUER A., BROMAGE G., SOLHEIM J.E., OSTENSEN R., ULLA A., BURLEIGH M., GOOD S., HURKAL O., ANDERSON R. and PAKSTIENE E.
Abstract (from CDS):
We resolve the temporal spectrum into five stable pulsation periods in the range 340-380 s with amplitudes less than 1 per cent, and two additional periods that appear in one data set each. The three largest amplitude periodicities are nearly equally spaced, and we explore the consequences of identifying them as a rotationally split ℓ= 1 triplet by consulting a representative stellar model.
The general stability of the pulsation amplitudes and phases allows us to use the pulsation phases to constrain the time-scale of evolution for this sdBV star. Additionally, we are able to place interesting limits on any stellar or planetary companion to Feige 48.
Abstract Copyright: 2004 RAS
Journal keyword(s): stars: individual (Feige 48) - stars: oscillations - stars: variables: other
Simbad objects: 5
To bookmark this query, right click on this link: simbad:2004MNRAS.348.1164R and select 'bookmark this link' or equivalent in the popup menu