2018AJ....155..115L

Query : 2018AJ....155..115L

2018AJ....155..115L - Astron. J., 155, 115-115 (2018)

Three small planets transiting a Hyades star.

LIVINGSTON J.H., DAI F., HIRANO T., GANDOLFI D., NOWAK G., ENDL M., VELASCO S., FUKUI A., NARITA N., PRIETO-ARRANZ J., BARRAGAN O., CUSANO F., ALBRECHT S., CABRERA J., COCHRAN W.D., CSIZMADIA S., DEEG H.J., EIGMULLER P., ERIKSON A., FRIDLUND M., GRZIWA S., GUENTHER E.W., HATZES A.P., KAWAUCHI K., KORTH J., NESPRAL D., PALLE E., PATZOLD M., PERSSON C.M., RAUER H., SMITH A.M.S., TAMURA M., TANAKA Y., VAN EYLEN V., WATANABE N. and WINN J.N.

Abstract (from CDS):

We present the discovery of three small planets transiting K2-136 (LP 358 348, EPIC 247589423), a late K dwarf in the Hyades. The planets have orbital periods of 7.9757 ± 0.0011, 17.30681–0.00036+0.00034, and 25.5715–0.0040+0.0038days, and radii of 1.05 ± 0.16, 3.14 ± 0.36, and 1.55–0.21+0.24R⊕, respectively. With an age of 600-800 Myr, these planets are some of the smallest and youngest transiting planets known. Due to the relatively bright (J = 9.1) host star, the planets are compelling targets for future characterization via radial velocity mass measurements and transmission spectroscopy. As the first known star with multiple transiting planets in a cluster, the system should be helpful for testing theories of planet formation and migration.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): planetary systems - planets and satellites: detection - stars: individual: LP 358-348 - techniques: photometric - techniques: spectroscopic

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 * gam Tau ** 04 19 47.6039239005 +15 37 39.511385129 5.46 4.64 3.65 4.83   G9.5IIIabCN0.5 569 0
3 * ups Tau dS* 04 26 18.4631232492 +22 48 48.889451555   4.572 4.282     A8Vn 189 0
4 * 71 Tau dS* 04 26 20.7708204936 +15 37 05.884087620   4.758 4.480 5.96 4.15 F0V 235 0
5 K2-136 PM* 04 29 38.9939167752 +22 52 57.793533924   12.48 11.20 10.90   K5.5V 92 0
6 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1453 0
7 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
8 * c Tau BS? 04 38 09.4618938672 +12 30 39.013056648 4.52 4.39 4.27 4.13 4.08 A6V 207 0
9 NGC 2423 OpC 07 37 11.3 -13 51 45           ~ 175 0
10 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
11 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
12 K2-18b Pl 11 30 14.5177445592 +07 35 18.255348492           ~ 303 0
13 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
14 K2-32 PM* 16 49 42.2601799152 -19 32 34.151379684   13.28 12.31 12.11   ~ 66 0
15 Kepler-363 Er* 18 52 46.1054164776 +41 18 19.315610676   14.380 13.473 13.334   G5V 64 0
16 Kepler-254 Er* 19 12 39.5241024600 +45 48 59.394712176   16.896 15.958 15.953   ~ 71 0
17 Kepler-19 Er* 19 21 40.9995019176 +37 51 06.437281140   12.88 12.04 11.888   F9 112 1
18 Kepler-184 Er* 19 27 48.4549205376 +43 04 28.973525592   15.168 14.460 14.317   F2 65 0
19 Kepler-326 Er* 19 37 18.1337949432 +46 00 08.063097696   14.811 13.863 13.584   K1V 79 0
20 NGC 6811 OpC 19 37 21.8 +46 22 43   7.47 6.8     ~ 435 0
21 Kepler-51 Er* 19 45 55.1428629456 +49 56 15.650520684       14.829   G4 165 1
22 HD 190007 BY* 20 02 47.0456863896 +03 19 34.265904204   8.60   6.8   K5V 246 0

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