2005MNRAS.360..314R

Query : 2005MNRAS.360..314R

2005MNRAS.360..314R - Mon. Not. R. Astron. Soc., 360, 314-321 (2005/June-2)

RApid Temporal Survey (RATS) - I. Overview and first results.

RAMSAY G. and HAKALA P.

Abstract (from CDS):

We present the aim and first results of the RApid Temporal Survey (RATS) made using the Wide Field Camera on the Isaac Newton Telescope. Our initial survey covers 3 square degrees, reaches a depth of V∼ 22.5 and is sensitive to variations on time-scales as short as 2 min: this is a new parameter space. Each field was observed for over 2 h in white light, with 12 fields being observed in total. Our initial analysis finds 45 targets which show significant variations. Around half of these systems show quasi-sinusoidal variations: we believe they are contact or short period binaries. We find four systems which show variations on a time-scale less than 1h. The shortest period system has a period of 374s. We find two systems which show a total eclipse. Further photometric and spectroscopic observations are required to fully identify the nature of these systems. We outline our future plans and objectives.

Abstract Copyright: 2005 RAS

Journal keyword(s): methods: data analysis - techniques: photometric - surveys - Galaxy: stellar content - stars: binaries: general - stars: variables: other

Nomenclature: Table 2: RAT JHHMM+DDMM N=45.

Simbad objects: 46

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Number of rows : 46
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ATO J030.5929+34.1523 EB* 02 02 22.3029176928 +34 09 08.374573152     17.3     ~ 3 0
2 CRTS J020731.4+363029 EB* 02 07 31.4376044784 +36 30 30.872984004     15.73     ~ 8 0
3 RAT J0208+3605 EB* 02 08 40.3991531736 +36 05 31.320956407     18.8     ~ 2 0
4 V* HU Cet dS* 03 05 56.7985510728 -00 36 16.475343408     20.2     ~ 4 0
5 TYC 2366-2395-1 * 04 04 53.3319218304 +34 24 57.049043760   12.97 11.98     ~ 1 0
6 RAT J0410+1917 * 04 10 18.2 +19 17 12     21.3     ~ 1 0
7 ATO J062.8337+19.5668 EB* 04 11 20.0861217504 +19 34 00.552777348     16.8     ~ 6 0
8 RAT J0449+1756 SX* 04 49 52.2702661416 +17 56 39.058275372           F 3 0
9 RAT J0450+1821 * 04 50 02.7 +18 21 07     21.1     ~ 1 0
10 V* V1342 Tau EB* 04 50 15.6185380181 +18 23 45.155109336     18.4     ~ 5 0
11 RAT J0451+1814 * 04 51 21.9 +18 14 11     21.6     ~ 1 0
12 CRTS J045429.4+130722 EB* 04 54 29.5040258952 +13 07 21.886312008     15.41     ~ 9 0
13 GALEX J045515.2+130530 HS* 04 55 15.2317052592 +13 05 29.689559052   17.6   17.3   sdB 20 0
14 RAT J0455+1254 SX* 04 55 16.4262826536 +12 54 10.556149032     16.0     F 3 0
15 V* V1837 Ori Er* 04 56 06.9967168128 +12 54 15.223855320     21.1     ~ 2 0
16 RAT J0727+2323 EB* 07 27 55.5068537991 +23 23 24.177530531     19.4     ~ 2 0
17 RAT J0728+2308 * 07 28 31.9 +23 08 52     21.5     ~ 1 0
18 CRTS J072849.2+231338 ** 07 28 49.21200 +23 13 38.0280   16.292 15.579 15.376   ~ 7 0
19 RAT J0728+2316 EB* 07 28 53.5246782432 +23 16 54.037522698     19.9     ~ 3 0
20 CRTS J073851.3+234808 EB* 07 38 51.3275713296 +23 48 08.268974208     16.47     ~ 8 0
21 RAT J0738+2334 * 07 38 57.1525527816 +23 34 25.168663416     18.2     ~ 1 0
22 V* V430 Gem EB* 07 38 59.2589597112 +23 50 38.499112464     15.49     ~ 7 0
23 V* V431 Gem EB* 07 39 24.7132314552 +23 56 25.246717404     17.5     ~ 5 0
24 RAT J0739+2345 EB* 07 39 31.4723024626 +23 45 37.597919080     16.0     ~ 2 0
25 RAT J0740+2349 * 07 40 06.1 +23 49 29     17.8     ~ 1 0
26 V* V432 Gem dS* 07 40 16.7094271224 +23 37 53.271741756     18.4     ~ 4 0
27 V* V433 Gem V* 07 40 17.12 +23 40 09.0     18.1     ~ 1 0
28 ZTF J074024.31+235318.9 EB* 07 40 24.3199187568 +23 53 18.921525360     18.8     ~ 4 0
29 CRTS J080450.8+153209 EB* 08 04 50.8418234064 +15 32 09.562770888     15.56     ~ 8 0
30 CRTS J080516.2+151259 EB* 08 05 16.2527378112 +15 12 58.940161092     16.00     ~ 7 0
31 V* IX Cnc dS* 08 05 40.1 +15 22 59     20.4     ~ 1 0
32 V* IY Cnc Er* 08 06 29.15424 +15 40 46.4592           ~ 1 0
33 RAT J0806+1530 * 08 06 44.4191901552 +15 30 00.359911800     21.1     ~ 1 0
34 RAT J0807+1510 SX* 08 07 00.4189390656 +15 10 59.821812192   15.6 15.4 15.54   F 3 0
35 G 61-29 CV* 13 05 42.4009686696 +18 01 03.763561619   16.059 16.101 15.825   DBe 284 0
36 RAT J2256+3415 * 22 56 54.2 +34 15 39     21.2     ~ 1 0
37 CRTS J225720.1+342431 EB* 22 57 20.1390765552 +34 24 31.226809536     15.67     ~ 3 0
38 RAT J2257+3403 EB* 22 57 45.1577808314 +34 03 27.413405619     19.9     ~ 4 0
39 RAT J2303+3418 * 23 03 19.3 +34 18 46     22.2     ~ 1 0
40 ZTF J230428.66+343855.1 EB* 23 04 28.6587679008 +34 38 55.095800784     20.14     ~ 3 0
41 RAT J2305+3417 Pu* 23 05 07.9 +34 17 24     20.9     ~ 2 0
42 CRTS J231025.6+340842 EB* 23 10 25.7341074072 +34 08 42.951890976     16.34     ~ 7 0
43 CRTS J231038.6+341431 EB* 23 10 38.6882655504 +34 14 31.679101860     18.04     ~ 6 0
44 CRTS J231115.6+340643 EB* 23 11 15.6312505488 +34 06 43.667737416     15.14     ~ 7 0
45 V* V577 Peg EB* 23 11 24.7096552728 +34 31 16.411214676     19.8     ~ 2 0
46 RAT J0208+3610 * ~ ~     19.6     ~ 1 0

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