2013A&A...558A..63C


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.10CET20:04:55

2013A&A...558A..63C - Astronomy and Astrophysics, volume 558A, 63-63 (2013/10-1)

Search for p-mode oscillations in RX J2117.1+3412.

CHANG H.-K., SHIH I.-C., LIU C.-Y., FAN T., WU Y.-S., ROQUES F., DORESSOUNDIRAM A., FERNANDEZ A., CHRISTOPHE B. and DAUNY F.

Abstract (from CDS):

We report the effort to search for white dwarf p-mode oscillations in RX J2117.1+3412 (V2027 Cyg), a GW Vir star. The data were taken with Miosotys, a multi-fiber photometer, mounted on the 1.93-m telescope at Observatoire de Haute-Provence (OHP) with a 20-Hz cadence in May 2010 and June 2012. Two intriguing signatures at 1.2081Hz and 2.5852Hz were found at 3.8-σ and 3.5-σ significance levels, respectively. However, possible atmospheric effects cannot be ruled out. If these two features are not real, the 3-σ upper limit of the relative amplitude for the possible oscillations in the frequency range from 1 to 10Hz is estimated to be about 6x10–4. This is the first report in the literature for a p-mode oscillation search of GW Vir stars.

Abstract Copyright:

Journal keyword(s): stars: individual: RX J2117.1+3412 - stars: oscillations - white dwarfs

VizieR on-line data: <Available at CDS (J/A+A/558/A63): 0524t.dat 0524r.dat 0617t.dat 0617r.dat 0618t.dat 0618r.dat>

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 EGGR 409 WD* 01 14 37.6542285316 +10 41 04.756788413   15.27 15.41 15.69   DB2.5 57 0
2 HL Tau 76 WD* 04 18 56.6380318051 +27 17 48.312463115   15.40       DA4.3 125 0
3 GD 358 WD* 16 47 18.3926893312 +32 28 32.865420612 12.511 13.530 13.653 13.752 13.852 DB2 312 0
4 SDSS J184037.78+642312.3 WD* 18 40 37.7922396059 +64 23 12.283729115   18.6   19.4   DA 28 0
5 MWP 1 PN 21 17 08.2817539788 +34 12 27.415871206     12.33     PG1159 173 0

    Equat.    Gal    SGal    Ecl

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2019.12.10-20:04:55

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