CDS

2019MNRAS.490.1066D

Query : 2019MNRAS.490.1066D

2019MNRAS.490.1066D - Mon. Not. R. Astron. Soc., 490, 1066-1075 (2019/November-3)

The DECam minute cadence survey - II. 49 variables but no planetary transits of a white dwarf.

DAME K., BELARDI C., KILIC M., REST A., GIANNINAS A., BARBER S. and BROWN W.R.

Abstract (from CDS):

We present minute cadence photometry of 31 732 point sources observed in one 3 deg2 DECam pointing centred at RA = 09:03:02 and Dec. = -04:35:00 over eight consecutive half-nights. We use these data to search for eclipse-like events consistent with a planetary transit of a white dwarf and other sources of stellar variability within the field. We do not find any significant evidence for minute-long transits around our targets, hence we rule out planetary transits around ∼370 white dwarfs that should be present in this field. Additionally, we identify 49 variables, including 40 new systems. These include 23 detached or contact stellar binaries, one eclipsing white dwarf + M dwarf binary, 16 δ Scuti, three RR Lyrae, and two ZZ Ceti pulsators. Results from the remaining two fields in our survey will allow us to place more stringent constraints on the frequency of planets orbiting white dwarfs in the habitable zone.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: photometric - eclipses - stars: variables: general - white dwarfs

Simbad objects: 52

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Number of rows : 52
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 [MTR2015] OW J075531.59-315058.2 V*? 07 55 31.5897606144 -31 50 58.167619800           G 2 0
2 CFHTLS 1218 59104 Pu* 08 59 27.222 -04 29 16.34           ~ 1 0
3 CFHTLS 1218 20227 EB* 08 59 37.250 -04 39 29.27           ~ 1 0
4 CFHTLS 1217 66819 EB* 09 00 20.133 -04 26 27.36           ~ 1 0
5 CFHTLS 1222 194421 dS* 09 00 22.458 -04 44 12.28           ~ 1 0
6 CFHTLS 1217 166268 dS* 09 00 33.589 -03 58 24.21           ~ 1 0
7 CFHTLS 1222 151275 dS* 09 00 49.936 -04 56 24.71           ~ 1 0
8 CFHTLS 1217 8031 Pu* 09 00 51.516 -04 42 49.18           ~ 1 0
9 CFHTLS 1217 187387 V* 09 00 53.225 -03 52 03.96           ~ 1 0
10 CRTS J090103.3-035043 EB* 09 01 03.3298565808 -03 50 42.619644600     14.55     ~ 3 0
11 CFHTLS 1217 191117 EB* 09 01 23.589 -03 51 06.45           ~ 1 0
12 CFHTLS 1217 186188 EB* 09 01 29.915 -03 52 34.44           ~ 1 0
13 CFHTLS 1222 53679 EB* 09 01 38.071 -05 25 05.08           ~ 1 0
14 ATO J135.4216-04.5694 RR* 09 01 41.1981065952 -04 34 10.011416628     17.02     ~ 5 0
15 CFHTLS 1217 27870 dS* 09 01 53.875 -04 37 14.94           ~ 1 0
16 CFHTLS 1222 148846 EB* 09 01 56.909 -04 57 04.07           ~ 1 0
17 CFHTLS 1217 81690 EB* 09 02 21.571 -04 22 42.30           ~ 1 0
18 ATO J135.5928-05.0337 RR* 09 02 22.2760303800 -05 02 01.344307848     17.33     ~ 5 0
19 CFHTLS 1217 188933 dS* 09 02 33.540 -03 51 50.44           ~ 1 0
20 CFHTLS 1217 19702 EB* 09 02 45.974 -04 39 34.64           ~ 1 0
21 CFHTLS 1222 128800 V* 09 02 46.931 -05 02 45.10           ~ 1 0
22 CRTS J090248.0-035303 EB* 09 02 48.0304903368 -03 53 03.287377752     16.35     ~ 3 0
23 CFHTLS 1222 102534 EB* 09 02 57.061 -05 10 20.81           ~ 1 0
24 CFHTLS 1222 72598 dS* 09 03 16.452 -05 19 11.81           ~ 1 0
25 CFHTLS 1222 79956 EB* 09 03 24.589 -05 16 53.25           ~ 1 0
26 CFHTLS 1216 53403 EB* 09 03 42.089 -04 29 40.20           ~ 1 0
27 CFHTLS 1221 168476 EB* 09 03 44.624 -04 48 32.97           ~ 1 0
28 CFHTLS 1221 75114 V* 09 04 02.124 -05 16 45.78           ~ 1 0
29 CRTS J090407.2-041553 EB* 09 04 07.2520844304 -04 15 53.206484832     16.62     ~ 3 0
30 CFHTLS 1221 110660 dS* 09 04 11.330 -05 06 22.54           ~ 1 0
31 CFHTLS 1216 25315 EB* 09 04 15.549 -04 38 03.73           ~ 1 0
32 CFHTLS 1221 25219 dS* 09 04 15.727 -05 32 47.04           ~ 1 0
33 CFHTLS 1221 186616 dS* 09 04 29.256 -04 42 50.98           ~ 1 0
34 CFHTLS 1216 56208 EB* 09 04 31.582 -04 29 29.13           ~ 1 0
35 CRTS J090432.8-051657 EB* 09 04 32.8823844753 -05 16 58.136931847     15.36     ~ 3 0
36 CFHTLS 1216 147742 EB* 09 04 37.052 -04 04 23.43           ~ 1 0
37 CFHTLS 1221 160439 EB* 09 04 42.776 -04 50 55.14           ~ 1 0
38 CFHTLS 1216 75729 dS* 09 04 50.248 -04 23 43.93           ~ 1 0
39 CFHTLS 1221 80866 dS* 09 04 50.8325748480 -05 15 34.703810884           ~ 1 0
40 ATO J136.2402-04.3042 RR* 09 04 57.6701064144 -04 18 15.071276448     14.94     ~ 3 0
41 CFHTLS 1221 93505 V* 09 05 08.181 -05 11 26.75           ~ 1 0
42 CFHTLS 1221 63533 EB* 09 05 09.9508645416 -05 20 49.843530672     14.54     ~ 3 0
43 CFHTLS 1216 23921 EB* 09 05 16.806 -04 38 18.66           ~ 1 0
44 CFHTLS 1216 29248 dS* 09 05 28.246 -04 37 26.78           ~ 1 0
45 CFHTLS 1216 39607 dS* 09 05 35.177 -04 33 54.28           ~ 1 0
46 CFHTLS 1216 51771 dS* 09 05 40.849 -04 30 17.85           ~ 1 0
47 CFHTLS 1221 136589 dS* 09 05 45.608 -04 58 27.99           ~ 1 0
48 CFHTLS 1221 91656 EB* 09 05 49.293 -05 11 46.41           ~ 1 0
49 CRTS J090551.5-050708 EB* 09 05 51.5810008533 -05 07 08.289339255     17.08     ~ 3 0
50 CFHTLS 1216 138151 dS* 09 06 21.666 -04 07 23.86           ~ 1 0
51 LBQS 1145+0145 WD* 11 48 33.6297189672 +01 28 59.420446860           DB 170 0
52 CD-44 12736 PM* 18 36 25.9502475648 -44 18 36.907592904   10.83 10.22     G0 207 0

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2023.03.24-00:33:02

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