J/other/JAD/15.1 Time-series of 9 cataclysmic variables (Papadaki+, 2009)
Photometric study of selected cataclysmic variables.
II. Time-series photometry of nine systems.
Papadaki C., Boffin H.M.J., Stanishev V., Boumis P., Akras S., Sterken C.
<The Journal of Astronomical Data, 15, 1 (2009)>
=2009JAD....15....1P 2009JAD....15....1P
ADC_Keywords: Binaries, cataclysmic ; Photometry
Abstract:
We present time-series photometry of nine cataclysmic variables:
EI UMa, V844 Her, V751 Cyg, V516 Cyg, GZ Cnc, TY Psc, V1315 Aql,
ASAS J002511+1217.2, V1315 Aql and LN UMa. The observations were
conducted at various observatories, covering 170 hours and comprising
7850 data points in total.
For the majority of targets we confirm previously reported
periodicities and for some of them we give, for the first time through
photometry, their underlying spectroscopic orbital period. For those
dwarf-nova systems which we observed during both quiescence and
outburst, the increase in brightness was accompanied by a decrease in
the level of flickering. For the eclipsing system V1315 Aql we have
covered 9 eclipses, and obtained a refined orbital ephemeris. We find
that, during its long baseline of observations, no change in the
orbital period of this system has occurred. V1315 Aql also shows
eclipses of variable depth.
Objects:
-------------------------------------------------------------------------
RA (2000) DE Designation(s) (Table)
-------------------------------------------------------------------------
08 38 22.0 +48 38 02 EI UMa = RX J0838.3+4838 (table5)
16 25 01.7 +39 09 27 V844 Her = SBC9 2430 (table6)
20 52 12.8 +44 19 26 V751 Cyg = RX J2052.2+4419 (table7)
20 47 09.8 +41 55 27 V516 Cyg = SV* SON 4530 (table8)
09 15 51.7 +09 00 50 GZ Cnc = RX J0915.8+0900 (table9)
01 25 39.3 +32 23 10 TY Psc = SV* SON 10900 (table10)
00 25 11.1 +12 17 12 ASAS J002511+1217.2 = RX J0025.1+1217 (table11)
19 13 54.5 +12 18 03 V1315 Aql = SBC9 1133 (table12)
10 04 34.7 +66 29 15 LN UMa = PG 1000+667 (table13)
-------------------------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 51 54 Log of observations
table2.dat 76 44 Designation of comparison stars
table3.dat 56 53 *Long-term behaviour
table4.dat 62 31 Eclipse timings of V1315 Aql
table5.dat 81 1732 EI UMa and comparison stars: instrumental magnitudes
table6.dat 94 296 V844 Her and comparison stars: instrumental
magnitudes
table7.dat 120 2335 V751 Cyg and comparison stars: instrumental
magnitudes
table8.dat 81 826 V516 Cyg and comparison stars: instrumental
magnitudes
table9.dat 159 371 GZ Cnc and comparison stars: instrumental magnitudes
table10.dat 55 217 TY Psc and comparison stars: instrumental
magnitudes
table11.dat 81 232 ASAS J002511+1217.2 and comparison stars:
instrumental magnitudes
table12.dat 68 1109 V1315 Aql and comparison stars: instrumental
magnitudes
table13.dat 81 730 LN UMa and comparison stars: instrumental magnitudes
fig2.dat 23 1732 EI UMa light curve
fig4.dat 23 296 V844 Her light curve
fig5.dat 23 2335 V751 Cyg light curve
fig7.dat 23 826 V516 Cyg light curve
fig8.dat 23 371 GZ Cnc light curve
fig9.dat 23 217 TY Psc light curve
fig10.dat 23 232 ASAS J002511+1217.2 light curve
fig11.dat 23 1109 V1315 Aql light curve
fig14.dat 23 730 LN UMa light curve
--------------------------------------------------------------------------------
Note on table3.dat: This table is intended for comparison reasons and in
order to have an impression of how real each system's nightly
mean-brightness variations are.
--------------------------------------------------------------------------------
See also:
J/A+A/456/599 : Light curves of 5 cataclysmic variables (Papadaki+, 2006)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 20 A20 --- CV Cataclysmic variable name
22- 31 A10 "DD/MM/YYYY" Date UT date at beginning of the night
33- 36 A4 --- Site Observing site (1)
38- 45 F8.3 d HJDs Heliocentric Julian Date at start=HJD-2450000
47- 49 F3.1 h Dur Duration of observing run
51 A1 --- Band [R-] Band used (Johnson-R or unfiltered)
--------------------------------------------------------------------------------
Note (1): Observing sites as follows:
SAAO = South African Astronomical Observatory
OHL = Observatorium Hoher List, Germany
KR = Kryoneri Observatory, Greece
SK = Skinakas Observatory, Greece
UC = Uccle Schmidt telescope, Belgium
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 20 A20 --- CV Cataclysmic variable name
22- 24 A3 --- SN Comparison star designation in photometric
tables (S1 to S10)
26- 45 A20 --- Comp Name of the comparison star used (1)
47 A1 --- Band [RV] Johnson-V or Johnson-R band for mag
49- 54 F6.3 mag mag ? Magnitude of comparison star
56- 66 A11 --- Phot Name of the table with instrumental photometry
68- 76 A9 --- LC Name of the table with ligh curve
--------------------------------------------------------------------------------
Note (1): Designations starting with HH95 refer to stars as taken from
Henden & Honeycutt, 1995PASP..107..324H 1995PASP..107..324H. The rest are adopted from
the online USNO-A2 catalogue at ESO science archive facility.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 20 A20 --- CV Cataclysmic variable name
22- 31 A10 "DD/MM/YYYY" Date UT date at beginning of the night
33- 38 F6.3 mag mag(CV) Mean nightly magnitude of the CV
40- 44 F5.3 mag e_mag(CV) Error in the mean nightly magnitude of
the CV
46- 50 F5.3 mag mag(dif) Mean of the differential magnitudes
between two comparison stars (1)
52- 56 F5.3 mag e_mag(dif) Error in the mean of the differential
magnitudes between two comparison stars
--------------------------------------------------------------------------------
Note (1): mean(shift) in each case is:
* mean(S4-S1) for EI UMa (OHL), V844 Her
* mean(S3-S1) for EI UMa (UC)
* mean(S7-S1) for V751 Cyg
* mean(S2-S1) for V516 Cyg, TY Psc, V1315 Aql
* mean(S1-S2) for GZ Cnc, ASAS J002511+1217.2
* mean(S3-S2) for LN UMa
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 F10.5 d HJD Heliocentric Julian Date of mid-eclipse at
mid-ecl=HJD-2445000
12- 16 I5 --- E Cycle
18- 62 A45 --- Source Reference of the mid-eclipse timing
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table[56789].dat table1?.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 F16.8 d HJD Heliocentric Julian Date
18- 23 F6.3 mag magCV Intrumental magnitude of the CV star
25- 29 F5.3 mag e_magCV Error in instrumental magnitude of the CV star
31- 36 F6.3 mag magS1 ? Intrumental magnitude of S1 (1)
38- 42 F5.3 mag e_magS1 ? Error in instrumental magnitude of S1
44- 49 F6.3 mag magS2 ? Intrumental magnitude of S2 (1)
51- 55 F5.3 mag e_magS2 ? Error in instrumental magnitude of S2
57- 62 F6.3 mag magS3 ? Intrumental magnitude of S3 (1)
64- 68 F5.3 mag e_magS3 ? Error in instrumental magnitude of S3
70- 75 F6.3 mag magS4 ? Intrumental magnitude of S4 (1)
77- 81 F5.3 mag e_magS4 ? Error in instrumental magnitude of S4
83- 88 F6.3 mag magS5 ? Intrumental magnitude of S5 (1)
90- 94 F5.3 mag e_magS5 ? Error in instrumental magnitude of S5
96-101 F6.3 mag magS6 ? Intrumental magnitude of S6 (1)
103-107 F5.3 mag e_magS6 ? Error in instrumental magnitude of S6
109-114 F6.3 mag magS7 ? Intrumental magnitude of S7 (1)
116-120 F5.3 mag e_magS7 ? Error in instrumental magnitude of S7
122-127 F6.3 mag magS8 ? Intrumental magnitude of S8 (1)
129-133 F5.3 mag e_magS8 ? Error in instrumental magnitude of S8
135-140 F6.3 mag magS9 ? Intrumental magnitude of S9 (1)
142-146 F5.3 mag e_magS9 ? Error in instrumental magnitude of S9
148-153 F6.3 mag magS10 ? Intrumental magnitude of S10(1)
155-159 F5.3 mag e_magS10 ? Error in instrumental magnitude of S10
--------------------------------------------------------------------------------
Note (1): Comparison stars are defined in table2.dat
--------------------------------------------------------------------------------
Byte-by-byte Description of file: fig*.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 F16.8 d HJD Heliocentric Julian Date
18- 23 F6.3 mag mag Magnitude (1)
--------------------------------------------------------------------------------
Note (1): For fig4.dat, each night's light curve was brought around its
nightly mean magnitude. Each light curve, is therefore shifted by
this amount.
--------------------------------------------------------------------------------
Acknowledgements:
Chris Sterken, csterken(at)vub.ac.be
(End) Patricia Vannier [CDS] 15-May-2009