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| Query : 2006BaltA..15..219S |
2006BaltA..15..219S - Baltic Astronomy, 15, 219-226 (2006/April-0)
Line-profile variations in pulsating sdB stars as a pulsation mode diagnostic.
SCHOENAERS C. and LYNAS-GRAY A.E.
Abstract (from CDS):
In previous attempts to perform seismic modeling of pulsating subdwarf-B stars, various mode identification techniques are used with uncertain results. We investigated a method so far neglected in sdB stars, but very successful for main-sequence pulsators, i.e., mode identification from the line-profile variations caused by stellar pulsation. We report the calculation of time-resolved synthetic spectra for sdB stars pulsating with various combinations of pulsation modes; these calculations were carried out over appropriate ranges of effective temperature, surface gravity and helium abundances. Preliminary tests using these synthetic line-profile variations demonstrated their potential for mode identification by comparison with observations.
Abstract Copyright: ∼
Journal keyword(s): stars: hot subdwarfs - stars: oscillations
Simbad objects: 10
| Number of rows : 10 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | PG 0014+068 | HS* | 00 16 54.2537878176 | +07 04 30.043437816 | 15.3 | sdO | 73 | 1 | ||||
| 2 | V* EO Cet | HS* | 01 23 43.2471248112 | -05 05 45.831024564 | 12.21 | 12.65 | sdOV+F4V | 65 | 0 | |||
| 3 | HD 74194 | HXB | 08 40 47.7915253032 | -45 03 30.235569624 | 7.05 | 7.77 | 7.55 | 8.70 | O8.5Ib-II(f)p | 209 | 0 | |
| 4 | PG 1219+534 | HS* | 12 21 29.0914917288 | +53 04 36.796062144 | 12.41 | sdB | 84 | 1 | ||||
| 5 | PG 1325+102 | HS* | 13 27 48.5600155368 | +09 54 51.049107756 | 13.73 | 13.98 | 14.29 | sdBO | 57 | 1 | ||
| 6 | ESO 136-6 | Sy2 | 15 53 35.3846505552 | -61 40 59.036145456 | ~ | 43 | 0 | |||||
| 7 | PG 1605+072 | HS* | 16 08 03.6872637792 | +07 04 28.748468964 | 12.53 | 12.83 | 13.18 | sdB0.2VIHe3 | 133 | 0 | ||
| 8 | KPD 1930+2752 | HS* | 19 32 14.8088063952 | +27 58 35.445679608 | 12.80 | 13.75 | 13.82 | sdB | 159 | 0 | ||
| 9 | KPD 2109+4401 | HS* | 21 11 47.6445824136 | +44 13 50.620755936 | 12.14 | 13.11 | 13.30 | 13.64 | sdB | 67 | 0 | |
| 10 | PHL 44 | HS* | 21 35 13.3327203264 | -13 33 22.555121148 | 11.77 | 12.86 | 13.16 | sdB | 21 | 0 |
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