2019ApJ...881L..19V

Query : 2019ApJ...881L..19V

2019ApJ...881L..19V - Astrophys. J., 881, L19-L19 (2019/August-2)

TESS spots a compact system of super-earths around the naked-eye star HR 858.

VANDERBURG A., HUANG C.X., RODRIGUEZ J.E., BECKER J.C., RICKER G.R., VANDERSPEK R.K., LATHAM D.W., SEAGER S., WINN J.N., JENKINS J.M., ADDISON B., BIERYLA A., BRICENO C., BOWLER B.P., BROWN T.M., BURKE C.J., BURT J.A., CALDWELL D.A., CLARK J.T., CROSSFIELD I., DITTMANN J.A., DYNES S., FULTON B.J., GUERRERO N., HARBECK D., HORNER J., KANE S.R., KIELKOPF J., KRAUS A.L., KREIDBERG L., LAW N., MANN A.W., MENGEL M.W., MORTON T.D., OKUMURA J., PEARCE L.A., PLAVCHAN P., QUINN S.N., RABUS M., ROSE M.E., ROWDEN P., SHPORER A., SIVERD R.J., SMITH J.C., STASSUN K., TINNEY C.G., WITTENMYER R., WRIGHT D.J., ZHANG H., ZHOU G. and ZIEGLER C.A.

Abstract (from CDS):

Transiting Exoplanet Survey Satellite (TESS) observations have revealed a compact multiplanet system around the sixth-magnitude star HR 858 (TIC 178155732, TOI 396), located 32 pc away. Three planets, each about twice the size of Earth, transit this slightly evolved, late F-type star, which is also a member of a visual binary. Two of the planets may be in mean motion resonance. We analyze the TESS observations, using novel methods to model and remove instrumental systematic errors, and combine these data with follow-up observations taken from a suite of ground-based telescopes to characterize the planetary system. The HR 858 planets are enticing targets for precise radial velocity observations, secondary eclipse spectroscopy, and measurements of the Rossiter-McLaughlin effect.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): planetary systems - planets and satellites: detection - stars: individual: (HR 858, TIC 178155732)

Simbad objects: 9

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Number of rows : 9
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 17926b Pl 02 51 56.2461860472 -30 48 52.262322192           ~ 6 0
2 HD 17926d Pl 02 51 56.2461860472 -30 48 52.262322192           ~ 8 0
3 HD 17926 PM* 02 51 56.2461860472 -30 48 52.262322192   6.862 6.382     F6V 77 0
4 HD 17926c Pl 02 51 56.2461860472 -30 48 52.262322192           ~ 9 0
5 HD 17926B PM* 02 51 56.4050546448 -30 48 44.196330996           ~ 8 0
6 * pi. Men PM* 05 37 09.8868446714 -80 28 08.834553264   6.25 5.67     G0V 390 1
7 * rho01 Cnc PM* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1223 1
8 * 51 Peg b Pl 22 57 27.9804852576 +20 46 07.797040104           ~ 744 1
9 HD 219134 PM* 23 13 16.9749603608 +57 10 06.083823619 7.460 6.560 5.570 4.76 4.23 K3V 677 1

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