2013JAVSO..41..182M


Query : 2013JAVSO..41..182M

2013JAVSO..41..182M - J. Am. Assoc. Variable star obs., 41, 182 (2013/December-0)

Discovery of pulsating components in the southern eclipsing binary systems AW Velorum, HM Puppis, and TT Horologii.

MORIARTY D.J.W., BOHLSEN T., HEATHCOTE B., RICHARDS T. and STREAMER M.

Abstract (from CDS):

Eclipsing binary stars with pulsating components are especially valuable for studies of stellar evolution. We have discovered that three eclipsing binary stars in the southern sky have a pulsating component with oscillations similar to those of delta Scuti stars. The systems are: AW Velorum, HM Puppis, and TT Horologii. Their spectral types were determined as A7 for AW Vel and HM Pup and F0-F2 for TT Hor. The dominant pulsation frequencies are 15-38 cycles per day with amplitudes of 10-60 millimagnitudes.

Abstract Copyright: ∼

Journal keyword(s): variable stars - pulsating stars - eclipsing binary stars

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 V* TT Hor EB* 03 27 04.3782830376 -45 52 56.577104724   11.38 11.04     ~ 21 0
2 V* HM Pup SB* 07 19 37.7175099888 -48 39 13.025677104   11.05 10.99     ~ 14 0
3 V* AW Vel EB* 08 08 11.6575143360 -44 20 53.514164832   11.12 10.83     ~ 16 0

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