TY - JOUR
T1 - Quiescent observations of the WZ sagittae-type dwarf nova PQ andromedae
AU - Schwarz, Grec J.
AU - Barman, Travis
AU - Silvestri, Nicole
AU - Szkody, Paula
AU - Starrfield, Sumner
AU - Vanlandingham, Karen
AU - Wagner, R. Mark
PY - 2004/12
Y1 - 2004/12
N2 - We have obtained time series optical spectra of the cataclysmic variable PQ And in quiescence. The spectra show a white dwarf continuum with narrow Balmer emission superimposed over strong Balmer absorption. The emission lines have blue and red components whose strength changes with time. An analysis of the Hα emission line implies a short orbital period below the period gap. Given its lack of accretion disk features, its large and infrequent outbursts, and an orbital period below the period gap, PQ And is probably a low accretion rate object similar to WZ Sge. In addition, white dwarf model fits imply that PQ And is an excellent ZZ Cet candidate.
AB - We have obtained time series optical spectra of the cataclysmic variable PQ And in quiescence. The spectra show a white dwarf continuum with narrow Balmer emission superimposed over strong Balmer absorption. The emission lines have blue and red components whose strength changes with time. An analysis of the Hα emission line implies a short orbital period below the period gap. Given its lack of accretion disk features, its large and infrequent outbursts, and an orbital period below the period gap, PQ And is probably a low accretion rate object similar to WZ Sge. In addition, white dwarf model fits imply that PQ And is an excellent ZZ Cet candidate.
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U2 - 10.1086/426927
DO - 10.1086/426927
M3 - Article
AN - SCOPUS:11144242168
SN - 0004-6280
VL - 116
SP - 1111
EP - 1116
JO - Publications of the Astronomical Society of the Pacific
JF - Publications of the Astronomical Society of the Pacific
IS - 826
ER -