2016MNRAS.463.1780L

Query : 2016MNRAS.463.1780L

2016MNRAS.463.1780L - Mon. Not. R. Astron. Soc., 463, 1780-1796 (2016/December-1)

A PSF-based approach to Kepler/K2 data - II. Exoplanet candidates in Praesepe (M 44).

LIBRALATO M., NARDIELLO D., BEDIN L.R., BORSATO L., GRANATA V., MALAVOLTA L., PIOTTO G., OCHNER P., CUNIAL A. and NASCIMBENI V.

Abstract (from CDS):

In this work we keep pushing K2 data to a high photometric precision, close to that of the Kepler main mission, using a PSF-based, neighbour-subtraction technique, which also overcome the dilution effects in crowded environments. We analyse the open cluster M 44 (NGC 2632), observed during the K2 Campaign 5, and extract light curves of stars imaged on module 14, where most of the cluster lies. We present two candidate exoplanets hosted by cluster members and five by field stars. As a by-product of our investigation, we find 1680 eclipsing binaries and variable stars, 1071 of which are new discoveries. Among them, we report the presence of a heartbeat binary star. Together with this work, we release to the community a catalogue with the variable stars and the candidate exoplanets found, as well as all our raw and detrended light curves.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: image processing - techniques: photometric - binaries: general - planetary systems - stars: variables: general - open clusters and associations: individual: NGC 2632 (M 44) - open clusters and associations: individual: NGC 2632 (M 44)

VizieR on-line data: <Available at CDS (J/MNRAS/463/1780): table3.dat table4.dat list.dat fits/* lc/*>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 22

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Number of rows : 22
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 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
2 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
3 Cl* NGC 2632 JS 690 * 08 36 17.8985494896 +18 40 35.147749692   11.54 11.45     ~ 5 0
4 UCAC2 38611650 * 08 36 42.8252603400 +19 10 25.712421456   15.22 14.43 14.16   ~ 13 0
5 K2-274 * 08 37 07.7860804920 +20 23 57.709477212           K1V 21 0
6 K2-95 * 08 37 27.0563032536 +18 58 36.021202824   19.86 17.27     M3V 77 0
7 K2-100 Ro* 08 38 24.3002838928 +20 06 21.828057218   11.085 10.521     G2 141 0
8 K2-104 LM* 08 38 32.8359046503 +19 46 25.591543965   18.46 16.26     M1V 72 0
9 Cl* NGC 2632 JC 146 * 08 39 06.4897127112 +19 00 36.099613728   14.38 13.32     K0 24 0
10 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
11 K2-146 LM* 08 40 06.4242250368 +19 05 34.430759088   17.87 16.25 15.97   M3.0V 49 0
12 K2-339 * 08 40 19.8123871440 +18 41 34.495799244   15.64 14.66 14.62   ~ 12 0
13 K2-101 Ro* 08 41 22.5783027954 +18 56 01.947224876   13.970 12.957     K3V 89 0
14 BD+20 2184 Ro* 08 41 43.8160475073 +20 13 36.752729096   10.988 10.431     G2 109 1
15 Cl* NGC 2632 JC 278 Ro* 08 42 11.4988704792 +19 16 37.237499940   13.060 12.143     K1V 90 1
16 UCAC4 544-046711 RG* 08 43 34.6269092544 +18 37 19.909469460   13.112 12.094 11.879   K4.0 17 0
17 2MASS J08444982+2010396 LM* 08 44 49.8211320432 +20 10 39.620666784           M7V 13 0
18 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
19 Cl* NGC 2632 KP 103126 V* 08 53 02.3574264600 +20 45 04.414306896           ~ 3 0
20 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 780 0
21 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
22 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0

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