2021MNRAS.507.2856F


Query : 2021MNRAS.507.2856F

2021MNRAS.507.2856F - Mon. Not. R. Astron. Soc., 507, 2856-2868 (2021/October-3)

Optimized modelling of Gaia-Hipparcos astrometry for the detection of the smallest cold Jupiter and confirmation of seven low-mass companions.

FENG F., BUTLER R.P., JONES H.R.A., PHILLIPS M.W., VOGT S.S., OPPENHEIMER R., HOLDEN B., BURT J. and BOSS A.P.

Abstract (from CDS):

To fully constrain the orbits of low-mass circumstellar companions, we conduct combined analyses of the radial velocity data and the Gaia and Hipparcos astrometric data for eight nearby systems. Our study shows that companion-induced position and proper motion differences between Gaia and Hipparcos are significant enough to constrain orbits of low-mass companions to a precision comparable with previous combined analyses of direct imaging and radial velocity data. We find that our method is robust to whether we use Gaia Data Release 2 or Gaia Early Data Release 3, as well as whether we use all of the data or just proper motion differences. In particular, we fully characterize the orbits of HD 190360 b and HD 16160 C for the first time. With a mass of 1.8 ± 0.2 MJup and an effective temperature of 123-176 K and orbiting around a Sun-like star, HD 190360 b is the smallest Jupiter-like planet with well-constrained mass and orbit, belonging to a small sample of fully characterized Jupiter analogues. It is separated from its primary star by 0.25 arcsec and thus may be suitable for direct imaging by the coronagraph instrument of the Roman Space Telescope.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): methods: data analysis - methods: statistical - techniques: radial velocities - astrometry

Simbad objects: 22

goto Full paper

goto View the references in ADS

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 - 2023
#notes
1 BD+66 34 ** 00 32 29.43301 +67 14 08.4138           M2V+M3V 117 1
2 BD+66 34A Er* 00 32 29.5078336041 +67 14 09.139006503   12.16 10.327     M2V 129 1
3 HD 4747 SB* 00 49 26.7604733944 -23 12 44.868742449 8.244 7.927 7.155 6.732 6.344 G8/K0V 151 0
4 HD 4747b Pl? 00 49 26.7612113944 -23 12 44.865754071           ~ 26 0
5 HD 16160B LM* 02 36 04.66 +06 53 14.8     16.77     M6V 29 1
6 HD 16160 PM* 02 36 04.9013368983 +06 53 12.383654295   6.81   5.2   K3V 519 0
7 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1813 1
8 * chi01 Ori RS* 05 54 22.9829893 +20 16 34.222038 5.08 5.00 4.40 3.90 3.59 G0V 831 0
9 HD 42581B BD* 06 10 34.80 -21 52 00.0           T6.5 488 0
10 HD 72946b Pl? 08 35 51.2665915520 +06 37 21.970611710           ~ 8 0
11 HD 131664b Pl 15 00 06.0799727760 -73 32 07.226474399           ~ 19 1
12 HD 131664 * 15 00 06.0800617968 -73 32 07.189532412   8.82 8.13     G3V 74 1
13 * mu.01 Her ** 17 46 27.5472960785 +27 43 14.560978925 4.56 4.17 3.42 2.89 2.51 G5IV 677 0
14 HD 182488 PM* 19 23 34.0131683760 +33 13 19.078425912       5.8   K0V 264 1
15 BD+47 2936c Pl 19 50 50.2474562793 +48 04 51.097364378           ~ 15 0
16 G 125-55 PM* 20 03 26.5810806615 +29 51 59.529213703       14.09 11.24 M4.5V 76 0
17 HD 190360b Pl 20 03 37.4049065078 +29 53 48.495330996           ~ 57 1
18 HD 190360 PM* 20 03 37.4050868074 +29 53 48.492435887   6.44   5.2   G7IV-V 425 1
19 * 15 Sge B BD* 20 04 06.2 +17 04 13           L4-5 43 0
20 * 15 Sge PM* 20 04 06.2207683221 +17 04 12.676556401   6.390 5.788 5.4   G0V 368 0
21 * eps Ind PM* 22 03 21.6536261624 -56 47 09.522795714   5.75 4.69     K5V 522 0
22 * eps Ind b Pl 22 03 21.6542294981 -56 47 09.537018193           ~ 8 0

To bookmark this query, right click on this link: simbad:objects in 2021MNRAS.507.2856F and select 'bookmark this link' or equivalent in the popup menu


2023.01.30-05:44:44

© Université de Strasbourg/CNRS

    • Contact