1997PASP..109.1073H


Query : 1997PASP..109.1073H

1997PASP..109.1073H - Publ. Astron. Soc. Pac., 109, 1073-1076 (1997/October-0)

Time-series ensemble photometry of SX Phoenicis stars. II. AE Ursae Majoris.

HINTZ E., HINTZ M.L. and JONER M.D.

Abstract (from CDS):

begin{tex}We have examined the short period, double-mode variable star AE Ursae Majoris. Using time series ensemble photometry we have determined six new times of maximum light. We also applied a Fourier decomposition to the data to determine the component frequencies of the light curve. Using our data, along with archival data, we find that the period of AE UMa is continually decreasing at a rate of -1.14×10^{-10} d d^{-1}. However, from the Fourier decomposition we find that the period ratio P_{1}/P_{0} has remained constant at 0.773. We also find that AE UMa is incorrectly classified as a SX Phoenicis star.

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Journal keyword(s): Stars

CDS comments: Fig.1 : Comparison stars 1-5 not in SIMBAD

Simbad objects: 4

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Number of rows : 4
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 GD 428 SX* 03 47 19.8773016336 +63 22 42.150015336   13.10   13.26   ~ 104 0
2 V* AD CMi dS* 07 52 47.1853100064 +01 35 50.473377528   9.66 9.38     F0IV/V 147 0
3 V* AE UMa SX* 09 36 53.1551304240 +44 04 00.399819288   11.54 11.35     A7V 103 0
4 V* CY Aqr SX* 22 37 47.8520659536 +01 32 03.805667412 10.75 10.61 10.44     B8 218 0

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