1995PASP..107..927C

Query : 1995PASP..107..927C

1995PASP..107..927C - Publ. Astron. Soc. Pac., 107, 927-930 (1995/October-0)

X-ray discovery of a hot PG 1159 star, RX J0122.9-7521.

COWLEY A.P., SCHMIDTKE P.C., HUTCHINGS J.B. and CRAMPTON D.

Abstract (from CDS):

The supersoft X-ray source RX J0122.9-7521 has been optically identified with an extremeley hot PG1159 star. Its spectrum shows high excitation emission lines from which we estimate Teff ∼140,000K and log g∼7. Limited photometry taken during six nights shows no conclusive variability, but we cannot rule out short-period, low-amplitude pulsations (P<5 min) as are found in some PG1159 stars. There is some evidence for variations in the emission-line strengths, but higher quality spectra are needed to confirm this.

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Journal keyword(s):

Simbad objects: 6

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Number of rows : 6
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 2E 0035.4-7229 XB* 00 37 19.6683991960 -72 14 13.187852739   20.0 20.2     ~ 104 0
2 LHA 115-N 67 PN 00 58 37.095 -71 35 48.80   16.3 16.4 15.27 17.66 ~ 92 0
3 RX J0122.9-7521 WD* 01 22 53.4122561952 -75 21 14.724358308     15.4     PG1159 47 0
4 PG 1144+005 WD* 11 46 35.2284791112 +00 12 33.539992056   14.922 15.233     PG1159 92 0
5 MWP 1 PN 21 17 08.2817782392 +34 12 27.415995372   12.731 13.082 13.379   PG1159 199 0
6 V* IR Peg WD* 21 34 08.2124719240 +06 50 57.662044329   16.15       PG1159 122 0

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