2018AJ....155...72R

Query : 2018AJ....155...72R

2018AJ....155...72R - Astron. J., 155, 72-72 (2018/February-0)

A system of three super Earths transiting the late K-dwarf GJ 9827 at 30 pc.

RODRIGUEZ J.E., VANDERBURG A., EASTMAN J.D., MANN A.W., CROSSFIELD I.J.M., CIARDI D.R., LATHAM D.W. and QUINN S.N.

Abstract (from CDS):

We report the discovery of three small transiting planets orbiting GJ 9827, a bright (K = 7.2) nearby late K-type dwarf star. GJ 9827 hosts a 1.62 ± 0.11 R⊕ super Earth on a 1.2 day period, a 1.269–0.089+0.087 R⊕ super Earth on a 3.6 day period, and a 2.07 ± 0.14 R⊕ super Earth on a 6.2 day period. The radii of the planets transiting GJ 9827 span the transition between predominantly rocky and gaseous planets, and GJ 9827 b and c fall in or close to the known gap in the radius distribution of small planets between these populations. At a distance of 30 pc, GJ 9827 is the closest exoplanet host discovered by K2 to date, making these planets well-suited for atmospheric studies with the upcoming James Webb Space Telescope. The GJ 9827 system provides a valuable opportunity to characterize interior structure and atmospheric properties of coeval planets spanning the rocky to gaseous transition.

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

Journal keyword(s): planetary systems - planets and satellites: detection - stars: individual: GJ 9827 - stars: individual: GJ 9827

Simbad objects: 18

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Number of rows : 18
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 HD 3167c Pl 00 34 57.5242131960 +04 22 53.284093032           ~ 82 0
2 BD+10 1799b Pl 08 26 27.8490900672 +10 04 49.334175156           ~ 27 0
3 * rho01 Cnc e Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 682 1
4 HD 97658b Pl 11 14 33.1612754184 +25 42 37.390358520           ~ 234 1
5 K2-18 PM* 11 30 14.5177445592 +07 35 18.255348492   15.01 13.50 13.24   dM2.5 153 0
6 HD 106315 * 12 13 53.3962381416 -00 23 36.553445304   9.402 8.951     F5V 62 0
7 HD 106315b Pl 12 13 53.3962381416 -00 23 36.553445304           ~ 30 0
8 NAME G 139-21b Pl 17 15 18.9339850845 +04 57 50.066612336           ~ 845 1
9 G 139-21 PM* 17 15 18.9339850845 +04 57 50.066612336     14.71 13.26 11.50 M4.5V 372 1
10 NAME LP 700-6b Pl 22 22 29.8611412421 -07 57 19.853459655           ~ 17 0
11 TRAPPIST-1c Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 282 0
12 TRAPPIST-1d Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 263 0
13 TRAPPIST-1 LM* 23 06 29.3684948589 -05 02 29.037301866     18.798 16.466 14.024 M7.5e 1306 0
14 TRAPPIST-1f Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 281 0
15 BD-02 5958b Pl 23 27 04.8376907739 -01 17 10.582653030           ~ 78 0
16 BD-02 5958d Pl 23 27 04.8376907739 -01 17 10.582653030           ~ 82 0
17 BD-02 5958 PM* 23 27 04.8376907739 -01 17 10.582653030   11.57 10.10 10.09 8.89 K6V 110 0
18 BD-02 5958c Pl 23 27 04.8376907739 -01 17 10.582653030           ~ 35 0

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