2011ApJ...743..162P


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.05CET18:20:11

2011ApJ...743..162P - Astrophys. J., 743, 162 (2011/December-3)

A search for the transit of HD 168443b: improved orbital parameters and photometry.

PILYAVSKY G., MAHADEVAN S., KANE S.R., HOWARD A.W., CIARDI D.R., DE PREE C., DRAGOMIR D., FISCHER D., HENRY G.W., JENSEN E.L.N., LAUGHLIN G., MARLOWE H., RABUS M., VON BRAUN K., WRIGHT J.T. and WANG X.X.

Abstract (from CDS):

The discovery of transiting planets around bright stars holds the potential to greatly enhance our understanding of planetary atmospheres. In this work we present the search for transits of HD 168443b, a massive planet orbiting the bright star HD 168443 (V = 6.92) with a period of 58.11 days. The high eccentricity of the planetary orbit (e = 0.53) significantly enhances the a priori transit probability beyond that expected for a circular orbit, making HD 168443 a candidate for our ongoing Transit Ephemeris Refinement and Monitoring Survey. Using additional radial velocities from Keck High Resolution Echelle Spectrometer, we refined the orbital parameters of this multi-planet system and derived a new transit ephemeris for HD 168443b. The reduced uncertainties in the transit window make a photometric transit search practicable. Photometric observations acquired during predicted transit windows were obtained on three nights. Cerro Tololo Inter-American Observatory 1.0 m photometry acquired on 2010 September 7 had the required precision to detect a transit but fell just outside of our final transit window. Nightly photometry from the T8 0.8 m automated photometric telescope at Fairborn Observatory, acquired over a span of 109 nights, demonstrates that HD 168443 is constant on a timescale of weeks. Higher-cadence photometry on 2011 April 28 and June 25 shows no evidence of a transit. We are able to rule out a non-grazing transit of HD 168443b.

Abstract Copyright:

Journal keyword(s): planetary systems - stars: individual: HD 168443 - techniques: photometric - techniques: radial velocities

Simbad objects: 20

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Number of rows : 20

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 15082b Pl 02 26 51.0582746497 +37 33 01.737746137           ~ 217 1
2 HD 17156 PM* 02 49 44.4866941172 +71 45 11.632197644   8.78 8.16     G0 148 2
3 BD+50 1471b Pl 07 48 06.4726006390 +50 13 32.921121328           ~ 135 1
4 * rho01 Cnc e Pl 08 52 35.8113282132 +28 19 50.956901366           ~ 430 1
5 HD 80606 PM* 09 22 37.5769478105 +50 36 13.434928660   9.78 9.00     G5 291 2
6 HD 80606b Pl 09 22 37.5769478105 +50 36 13.434928660           ~ 282 1
7 HD 97658 PM* 11 14 33.1613362847 +25 42 37.391912066 9.049 8.569 7.714 7.259 6.835 K1V 136 1
8 HD 147506b Pl 16 20 36.3579144486 +41 02 53.109043943           ~ 218 1
9 HD 149026 PM* 16 30 29.6184841164 +38 20 50.310893575   8.75 8.14     G0IV 200 1
10 HD 156846 ** 17 20 34.3109259866 -19 20 01.494393975 7.20 7.10 6.52     G1V 95 1
11 HD 166664 * 18 12 01.3749653524 -08 43 51.587751606   7.67 7.25     A9V 18 0
12 HD 168443 PM* 18 20 03.9331764016 -09 35 44.609316076   7.62 6.92     G6V 286 1
13 HD 168443c Pl 18 20 03.9331764016 -09 35 44.609316076           ~ 86 1
14 HD 168443b Pl 18 20 03.9331764016 -09 35 44.609316076           ~ 89 1
15 TYC 5681-1450-1 * 18 20 12.0523584794 -09 41 10.787815371   13.42 11.23     ~ 1 0
16 BD-09 4695 * 18 20 41.0360924255 -09 30 51.833739689   12.21 11.18     ~ 1 0
17 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1153 1
18 HD 189733 BY* 20 00 43.7130382888 +22 42 39.071811263 9.241 8.578 7.648 7.126 6.68 K2V 746 1
19 HD 209458 V* 22 03 10.7729598762 +18 53 03.548248479   8.21 7.63     F9V 1009 1
20 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1550 1

    Equat.    Gal    SGal    Ecl

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2021.03.05-18:20:11

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