2009A&A...506..343D


Query : 2009A&A...506..343D

2009A&A...506..343D - Astronomy and Astrophysics, volume 506, 343-352 (2009/10-4)

Ground-based photometry of space-based transit detections: photometric follow-up of the CoRoT mission.

DEEG H.J., GILLON M., SHPORER A., ROUAN D., STECKLUM B., AIGRAIN S., ALAPINI A., ALMENARA J.M., ALONSO R., BARBIERI M., BOUCHY F., EISLOEFFEL J., ERIKSON A., FRIDLUND M., EIGMUELLER P., HANDLER G., HATZES A., KABATH P., LENDL M., MAZEH T., MOUTOU C., QUELOZ D., RAUER H., RABUS M., TINGLEY B. and TITZ R.

Abstract (from CDS):

The motivation, techniques and performance of the ground-based photometric follow-up of transit detections by the CoRoT space mission are presented. Its principal raison d'etre arises from the much higher spatial resolution of common ground-based telescopes in comparison to CoRoT's cameras. This allows the identification of many transit candidates as arising from eclipsing binaries that are contaminating CoRoT's lightcurves, even in low-amplitude transit events that cannot be detected with ground-based obervations. For the ground observations, ``on'' - ``off'' photometry is now largely employed, in which only a short timeseries during a transit and a section outside a transit is observed and compared photometrically. CoRoTplanet candidates' transits are being observed by a dedicated team with access to telescopes with sizes ranging from 0.2 to 2m. As an example, the process that led to the rejection of contaminating eclipsing binaries near the host star of the Super-Earth planet CoRoT-7b is shown. Experiences and techniques from this work may also be useful for other transit-detection experiments, when the discovery instrument obtains data with a relatively low angular resolution.

Abstract Copyright:

Journal keyword(s): methods: observational - techniques: photometric - stars: planetary systems - stars: binaries: eclipsing

Simbad objects: 19

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Number of rows : 19
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 CoRoT-7 * 06 43 49.4690164104 -01 03 46.826642700   12.78 11.73 11.36 10.87 K0V 199 1
2 CoRoT-7b Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 386 1
3 CoRoT-5b Pl 06 45 06.5406880497 +00 48 54.906888317           ~ 45 1
4 UCAC2 31291280 * 06 45 26.8757634024 -01 14 09.378030480     15.412   14.27 K2V 6 0
5 UCAC2 31465872 * 06 45 36.2856098544 -00 43 17.423816196     13.452   12.72 G0III 6 0
6 UCAC2 30967007 * 06 46 02.2092201888 -02 00 13.543534908     14.552   13.73 G3V 4 0
7 UCAC2 30967048 * 06 46 08.9825103288 -02 02 00.459372228     15.703   14.73 G8V 4 0
8 UCAC2 30654904 * 06 46 15.2840999952 -03 05 19.598724096     13.228 13.34 12.88 A0III 5 0
9 UCAC2 30813787 * 06 46 43.1346733344 -02 35 58.291488960     13.308   12.52 G4V 5 0
10 UCAC2 30655070 * 06 46 44.5871563056 -03 02 32.077880916     14.197   13.31 F5IV 4 0
11 UCAC2 31291827 * 06 46 49.3760766456 -01 23 11.561656560     13.933   13.07 K0IV 5 0
12 UCAC2 30813886 * 06 47 00.1279186944 -02 34 07.154886936     15.903   14.97 G0V 5 0
13 CoRoT-1 * 06 48 19.1723766840 -03 06 07.710745140     13.6 13.44 12.88 G0V 120 2
14 CoRoT-1b Pl 06 48 19.1724141241 -03 06 07.710423478           ~ 168 1
15 CoRoT-4b Pl 06 48 46.7133639143 -00 40 21.969520601           ~ 62 1
16 CoRoT-4 * 06 48 46.7134456728 -00 40 21.969631416       13.42   F0V 68 1
17 UCAC2 30814777 * 06 49 37.3329868104 -02 30 49.162174056     16.478   15.19 K5V 3 0
18 CoRoT-2b Pl 19 27 06.4944821296 +01 23 01.357597206           ~ 221 1
19 CoRoT-3b Pl 19 28 13.2642482783 +00 07 18.614302248           ~ 131 1

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2023.01.27-21:49:40

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