2006A&A...456..599P


Query : 2006A&A...456..599P

2006A&A...456..599P - Astronomy and Astrophysics, volume 456, 599-609 (2006/9-3)

Photometric study of selected cataclysmic variables.

PAPADAKI C., BOFFIN H.M.J., STERKEN C., STANISHEV V., CUYPERS J., BOUMIS P., AKRAS S. and ALIKAKOS J.

Abstract (from CDS):

We present time-resolved photometry of five relatively poorly-studied cataclysmic variables: V1193 Ori, LQ Peg, LD 317, V795 Her, and MCT 2347-3144. The observations were made using four 1m-class telescopes for a total of more than 250h of observation and almost 16000 data points. For LQ Peg WHT spectroscopic data have been analysed as well. The light curves show a wide range of variability on different time scales from minutes to months. We detect for the first time a brightness variation of 0.05mag in amplitude in V1193 Ori on the same timescale as the orbital period, which we interpret as the result of the irradiation of the secondary. A 20-min quasi-periodic oscillation is also detected. The mean brightness of the system has changed by 0.5mag on a three-month interval, while the flickering was halved. In LQ Peg a 0.05mag modulation was revealed with a period of about 3h. The flickering was much smaller, of the order of 0.025mag. A possible quasi-periodic oscillation could exist near 30min. For this object, the WHT spectra are single-peaked and do not show any radial-velocity variations. The data of LD 317 show a decrease in the mean magnitude of the system. No periodic signal was detected but this is certainly attributable to the very large flickering observed: between 0.07 and 0.1mag. For V795 Her, the 2.8-h modulation, thought to be a superhump arising from the precession of the disc, is present. We show that this modulation is not stable in terms of periodicity, amplitude, and phase. Finally, for MCT 2347-3144, a clear modulation is seen in a first dataset obtained in October 2002. This modulation is absent in August 2003, when the system was brighter and showed much more flickering.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - stars: novae, cataclysmic variables

VizieR on-line data: <Available at CDS (J/A+A/456/599): tablea1.dat table1.dat figa2.dat figa3.dat figa4.dat figa5.dat figa6.dat>

Nomenclature: Text, Figs A1: [PBS2006] V1193 Ori SN (Nos S1-S7), [PBS2006] LQ Peg SNN (Nos S1-S10), [PBS2006] LD 317 SNN (Nos S1-S10), [PBS2006] V795 Her SN (Nos S1-S4), [PBS2006] MCT 2347-3144 SN (Nos S1-S2).

Simbad objects: 40

goto Full paper

goto View the references in ADS

Number of rows : 40
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 V* TT Ari CV* 02 06 53.0797508832 +15 17 41.851038804   10.73 10.20     Bep: 430 0
2 2MASS J05160717-0008580 CV* 05 16 07.1780650008 -00 08 58.063871580   14.6 14.2     ~ 1 0
3 TYC 4752-1150-1 * 05 16 15.1056 -00 11 45.509   12.61 11.21     ~ 1 0
4 V* V1193 Ori CV* 05 16 26.6714235480 -00 12 14.307002172   13.95 14.0     ~ 40 0
5 [PBS2006] V1193 Ori S2 * 05 16 30.1494186864 -00 10 36.827472684   14.531 13.829     ~ 2 0
6 [PBS2006] V1193 Ori S1 * 05 16 31.15 -00 13 30.1   14.337 13.513     ~ 2 0
7 [PBS2006] V1193 Ori S4 * 05 16 32.2030655736 -00 09 27.503588124   16.081 15.110     ~ 2 0
8 GSC 04752-01133 * 05 16 33.5394467112 -00 11 11.944159476   14.48 13.91 13.81   ~ 3 0
9 2MASS J05163795-0007132 * 05 16 37.9576263096 -00 07 13.141513776   13.8   13.9   ~ 1 0
10 V* EX Hya CV* 12 52 24.2222471899 -29 14 55.999766523   13.51 13.49 13.55   M5-6V 681 0
11 [PBS2006] V795 Her S4 * 17 12 46.69 +33 29 57.8   15.214 14.688     ~ 2 0
12 [PBS2006] V795 Her S3 * 17 12 46.92 +33 30 44.2   14.783 14.047     ~ 2 0
13 [PBS2006] V795 Her S2 * 17 12 51.01 +33 31 55.9   15.406 14.865     ~ 2 0
14 [PBS2006] V795 Her S1 * 17 12 53.49 +33 31 11.3   15.331 14.565     ~ 2 0
15 V* V795 Her CV* 17 12 56.1689188488 +33 31 19.240640724   12.53 12.64 12.69   ~ 174 0
16 V* V794 Aql CV* 20 17 33.9158772576 -03 39 50.960495196           ~ 89 0
17 V* LQ Peg CV* 21 36 19.1177850768 +11 40 54.377256900   14.30       ~ 41 0
18 [PBS2006] LQ Peg S9 CV* 21 36 20.4557478552 +11 41 25.429410528   16.7 16.3     ~ 1 0
19 [PBS2006] LQ Peg S7 * 21 36 20.5 +11 38 34   15.722 14.692     ~ 3 0
20 GSC 01128-00678 * 21 36 21.5421950856 +11 41 47.180746752           ~ 3 0
21 [PBS2006] LQ Peg S3 * 21 36 21.9 +11 43 28   15.807 15.132     ~ 3 0
22 [PBS2006] LQ Peg S2 * 21 36 27.4950063432 +11 44 32.773673616   13.78 13.097     ~ 3 0
23 [PBS2006] LQ Peg S6 * 21 36 31.1 +11 38 05   15.447 14.693     ~ 3 0
24 [PBS2006] LQ Peg S5 * 21 36 31.6 +11 39 59   15.588 14.888     ~ 3 0
25 [PBS2006] LQ Peg S4 * 21 36 33.6 +11 41 58   14.835 13.916     ~ 3 0
26 [PBS2006] LQ Peg S1 * 21 36 33.9 +11 44 55   14.108 13.544     ~ 3 0
27 2MASS J23442810+4334296 CV* 23 44 28.0956132768 +43 34 29.607631860   15.4 15.1     ~ 1 0
28 2MASS J23443249+4335141 CV* 23 44 32.4920351880 +43 35 14.211497148   15.2 14.8     ~ 1 0
29 2MASS J23443470+4328100 CV* 23 44 34.6949007864 +43 28 10.121204676   15.5 15.2     ~ 1 0
30 2MASS J23443957+4332588 CV* 23 44 39.5727635112 +43 32 58.837264944   15.0 14.8     ~ 1 0
31 2MASS J23443976+4331586 CV* 23 44 39.7624743408 +43 31 58.719501804   15.4 14.9     ~ 1 0
32 2MASS J23444957+4328079 CV* 23 44 49.5655485816 +43 28 08.057295912   15.5 15.2     ~ 1 0
33 2MASS J23445279+4335261 CV* 23 44 52.7856637464 +43 35 26.260950696   15.6 15.0     ~ 1 0
34 2MASS J23445294+4329564 CV* 23 44 52.9368581304 +43 29 56.456121624   15.7 15.5     ~ 1 0
35 2MASS J23445734+4334279 CV* 23 44 57.3446231616 +43 34 27.982667028   15.6 15.0     ~ 1 0
36 V* V704 And CV* 23 44 57.5109774648 +43 31 22.262886012   13.24 13.06 13.357   ~ 16 0
37 2MASS J23450124+4335548 CV* 23 45 01.2546061632 +43 35 54.824710308   15.2 14.6     ~ 1 0
38 2MASS J23502114-3126582 CV* 23 50 21.1416238920 -31 26 58.309241964   14.7 14.7     ~ 1 0
39 MCT 2347-3144 CV* 23 50 30.6254801472 -31 27 33.521257440           ~ 8 0
40 2dFGRS TGS429Z114 CV* 23 50 32.8972473960 -31 25 48.502885296   16.7 16.6     ~ 1 0

To bookmark this query, right click on this link: simbad:objects in 2006A&A...456..599P and select 'bookmark this link' or equivalent in the popup menu


2023.01.30-19:05:56

© Université de Strasbourg/CNRS

    • Contact