2025A&A...704A.221V

Query : 2025A&A...704A.221V

2025A&A...704A.221V - Astronomy and Astrophysics, volume 704A221 (2025/12-1)

WIde Separation Planets In Time (WISPIT) Two directly imaged exoplanets around the Sun-like stellar binary WISPIT 1.

VAN CAPELLEVEEN R.F., KENWORTHY M.A., GINSKI C., MAMAJEK E.E., BOHN A.J., LANDMAN R., STOLKER T., ZHANG Y., VAN DER MAREL N. and SNELLEN I.

Abstract (from CDS):

Context. Wide separation gas giant planets present a challenge to current planet formation theories, and the detection and characterisation of these systems enables us to constrain their formation pathways.
Aims. The WIde Separation Planets In Time (WISPIT) survey aims to detect and characterise wide separation planetary-mass companions over a range of ages from <5 to 20 Myr around solar-type host stars at distances of 75-500 (median 140) parsecs.
Methods. The WISPIT survey carries out two five-minute H-band exposures with the VLT/SPHERE instrument and IRDIS camera separated by at least six months to identify co-moving companions via proper motion analysis. These two H-band observations in combination with a follow-up Ks-band observation were used to determine the colour and magnitude of the co-moving companions and to derive their masses through comparison to AMES-COND and AMES-DUSTY evolutionary tracks.
Results. We report the discovery of WISPIT 1b and WISPIT 1c, two gas giant exoplanets that are co-moving with the stellar binary WISPIT 1, which itself consists of a K4 star and M5.5 star in a multi-decadal orbit. The planets are at projected separations of 338 au and 840 au and have masses of 10 MJ and 4 MJ, respectively.
Conclusions. We identified two common proper motion planetary companions of a (previously unknown) stellar binary with a Sunlike primary. These targets are ideal for follow-up characterisation with both ground- and space-based telescopes. Monitoring of the orbit with the GRAVITY interferometer will place constraints on their eccentricity, and spectroscopic characterisation will identify the composition and metallicity, providing information on their formation pathways.

Abstract Copyright: © The Authors 2025

Journal keyword(s): planets and satellites: detection - planets and satellites: formation - stars: individual: WISPIT 1

Simbad objects: 82

goto Full paper

goto View the references in ADS

Number of rows : 82
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 SCR J0103-5515C LM* 01 03 35.58 -55 15 54.6           ~ 64 0
2 V* GU Psc B BD* 01 12 36.53808 +17 04 29.9424           T2+T8 81 1
3 V* DH Tau B LM* 04 29 41.66 +26 32 56.5           M9.25 105 1
4 * 51 Eri b Pl 04 37 36.1326090888 -02 28 24.775726260           ~ 238 0
5 NAME AF Lep b Pl 05 27 04.7633281608 -11 54 03.466002240           ~ 75 0
6 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
7 * bet Pic b Pl 05 47 17.0876901 -51 03 59.441135           ~ 627 1
8 NAME Vela Supershell sh 07 40 -22.           ~ 43 0
9 HD 63176 * 07 45 07.1712684792 -50 17 16.250491248   8.06 7.68     F2III/IV 22 0
10 2MASS J07485619-4656229 NIR 07 48 56.19696 -46 56 22.9235           ~ 1 0
11 L 34-26 B BD* 07 51 08.74800 -76 34 50.2968           T9 43 0
12 WISPIT 1b Pl 07 51 11.6851739232 -50 08 15.883981188           ~ 2 0
13 WISPIT 1c Pl 07 51 11.6851739232 -50 08 15.883981188           ~ 2 0
14 UCAC4 200-015587 Y*? 07 51 11.6851739232 -50 08 15.883981188   14.171 13.146 12.861   ~ 3 0
15 UCAC4 200-015609 * 07 51 23.1023788539 -50 08 10.942430581   12.659 11.925 11.752   ~ 4 0
16 1RXS J075123.3-500756 X 07 51 23.299 -50 07 55.99           ~ 1 0
17 HD 64740 * 07 53 03.6344819483 -49 36 46.956285817 3.48 4.40 4.63 4.76 4.97 B2V 223 0
18 OCSN 199 OpC 07 58.7 -49 13           ~ 5 0
19 HD 66192 * 08 00 05.5714179456 -48 54 19.512373068   7.30 7.35     B9V 16 0
20 Cl Collinder 173 OpC 08 02 49.00 -46 23 00.0           ~ 35 0
21 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 307 0
22 * gam02 Vel WR* 08 09 31.95013 -47 20 11.7108 0.64 1.58 1.83 1.85 2.00 WC8+O7.5III-V 951 0
23 NGC 2547 OpC 08 10 01.5 -49 12 08           ~ 445 0
24 YSES 2b * 11 27 55.3 -66 26 04           ~ 10 1
25 1RXS J112755.0-662558 Er* 11 27 55.3546311179 -66 26 04.500864242   11.77 10.88   9.773 K1V(e) 20 0
26 ASAS J114452-6438.9 Y*O 11 44 52.1689804608 -64 38 54.909854772   13.23 11.96 11.86 10.413 K6IVe 13 0
27 1RXS J114519.6-574925 * 11 45 20.1714875112 -57 49 09.459160752   13.12 12.34 12.20   K2IV 5 0
28 1RXS J114542.7-573928 Ro* 11 45 42.7867484160 -57 39 28.628128080     11.596   10.236 K4IVe 12 0
29 1RXS J121010.3-485538 Y*O 12 10 10.6607783376 -48 55 47.556028056   12.10 11.08 10.86   K3IV(e) 12 0
30 CD-57 4328 Or* 12 11 31.4224548744 -58 16 53.232914028   11.07 10.327   9.327 G9V(e) 25 0
31 CPD-49 4947 Or* 12 12 11.1919476024 -49 50 08.208709908   12.33 11.469   10.199 K2Ve 23 0
32 PM J12160-5614 Or* 12 16 01.1627221992 -56 14 07.023872868   12.290 11.169 10.959 9.842 K5Ve 23 0
33 RX J1216.6-7007 Y*O 12 16 40.2567345624 -70 07 36.204666348   11.78 10.72     K3IV(e) 20 0
34 HD 106906B BD* 12 17 52.61 -55 58 26.6           L2.5 115 0
35 HD 106906 * 12 17 53.1915103944 -55 58 31.893027240   8.95 8.89 8.46   F5V 179 0
36 NAME Lower Centaurus Crux As* 12 19 -57.1           ~ 565 1
37 CPD-64 1859 Or* 12 19 21.6378016896 -64 54 10.321434324 11.48 10.87 9.90   8.907 K3V 21 0
38 RX J1220.0-5018A Y*O 12 19 59.3958502224 -50 18 40.626870840       12.51   K5IVe 10 0
39 ASAS J122105-7116.9 LM* 12 21 04.9986446544 -71 16 49.276835688   13.05 11.73 11.32 10.08 K7V 30 0
40 CD-47 7559 Or* 12 22 04.2988090656 -48 41 24.953627940   11.34 10.618   9.562 K1Ve 32 0
41 ASAS J122648-5214.8 Or* 12 26 48.4335532104 -52 15 07.224594624   12.62 11.66   10.166 K5Ve 16 0
42 RX J1230.5-5222 Or* 12 30 29.5836357576 -52 22 26.968784916   13.06 12.05   10.075 K3V(e) 24 0
43 CPD-56 5307 Or* 12 33 33.8124157608 -57 14 06.563741856   11.91 10.89   9.736 K1V(e) 19 0
44 CPD-50 5313 Or* 12 36 17.6838659304 -50 42 42.091760844   12.05 11.593   10.272 K4Ve 18 0
45 CPD-53 5235 Or* 12 36 58.9657085280 -54 12 18.000711900   11.33 10.414   9.355 K0V 27 0
46 2MASS J12374883-5209463 Y*? 12 37 48.8408252760 -52 09 46.294734780   13.06 12.28     K5IVe 12 0
47 1RXS J123834.9-591645 Or* 12 38 35.5614978480 -59 16 43.926264012   12.70 11.587   10.330 K3Ve 18 0
48 CD-51 6900 Or* 12 40 46.6321070544 -52 11 04.629357564   13.01 11.66     K2V(e) 14 0
49 CD-49 7280 Y*O 12 40 54.5837961888 -50 31 55.135756308   12.93 11.48     K5V-IVe 4 0
50 ASAS J124547-5411.0 Or* 12 45 48.8341396848 -54 10 58.518461820   12.433 11.424 11.110 10.026 K2V(e) 24 0
51 1RXS J124830.1-594449 Or* 12 48 31.5346678536 -59 44 49.290973512   12.350 11.061 10.529 9.294 K7IVe 20 0
52 V* V1257 Cen Or* 12 50 51.4373973336 -51 56 35.326827456   12.69 11.68   10.301 K5Ve 27 0
53 UCAC4 186-087394 Em* 12 51 05.5672542240 -52 53 12.175430892   13.275 12.088 11.713   K5IVe 18 0
54 BD+13 2618C BD* 13 00 42.0799 +12 21 14.800         23.28 T8.5p 153 0
55 BD+13 2618 RS* 13 00 46.5566863405 +12 22 32.677229903 12.314 11.233 9.750 8.785 7.653 M0V 383 1
56 CPD-52 6110 Or* 13 01 50.6980984080 -53 04 58.162656612   11.98 11.08   10.154 K3V(e) 43 0
57 ASAS J130550-5304.2 Ro* 13 05 50.8729856736 -53 04 18.261760620   13.83 12.57 12.17 11.05 K6IVe 14 0
58 CD-51 7268 Or* 13 06 40.1232659280 -51 59 38.619014100   11.33 10.53 10.25   K1V(e) 25 0
59 TYC 8246-1527-1 Or* 13 06 54.3958785528 -45 41 31.218088596   13.06 12.03     K5Ve 22 0
60 UCAC2 12444765 Y*? 13 09 58.8107850552 -45 27 38.822993100   11.967 11.021 10.825 9.95 K2.5IVe 16 0
61 ASAS J131033-4816.9 Ro* 13 10 32.4502483320 -48 17 03.682410432   12.70 11.58 11.36 10.27 K4IVe 15 0
62 2MASS J13121764-5508258 Y*? 13 12 17.6479456576 -55 08 25.935851186   13.068 11.841 11.498 10.43 K5Ve 20 0
63 UNSW-V 514 Pu* 13 17 46.8702021408 -44 56 53.507882220         10.19 K5IVe 10 0
64 NAME TYC 8998-760-1 c Pl 13 25 12.1262905080 -64 56 20.688979668           ~ 30 0
65 TYC 8998-760-1 * 13 25 12.1262905080 -64 56 20.688979668   11.96 11.12     K3IV 48 0
66 NAME TYC 8998-760-1B LM* 13 25 12.33 -64 56 19.7           ~ 71 0
67 2MASS J13334410-6359345 Y*? 13 33 44.1032093256 -63 59 34.498087152   12.30 11.45     K3.5IV(e) 7 0
68 CD-41 7947 Or* 13 34 31.8880438128 -42 09 30.690277992   11.67 10.70 10.42   K2IVe 25 0
69 * b Cen ** 14 41 57.5905450998 -37 47 36.580200460 3.14 3.83 4.00 4.11 4.26 B2.5V 159 0
70 * b Cen b Pl? 14 41 57.5905450998 -37 47 36.580200460           ~ 13 0
71 HD 135344Ab Pl? 15 15 48.9462675744 -37 08 55.731368400           ~ 4 0
72 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
73 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
74 GSC 06214-00210 TT* 16 21 54.6676915200 -20 43 09.140591496   13.62 12.38 12.11 11.08 M1e 89 0
75 NAME GSC 06214-00210B LM* 16 21 54.678 -20 43 11.33           ~ 102 0
76 NAME SR 12C LM* 16 27 19.6577175120 -24 41 49.239711024           M9.0 61 0
77 NAME ROXs 42Bb Pl 16 31 14.93 -24 32 43.7           M8-L0 62 0
78 HD 218396c Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 312 1
79 HD 218396b Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 323 1
80 HD 218396d Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 286 1
81 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1285 0
82 NAME Local Bubble ISM ~ ~           ~ 1059 0

To bookmark this query, right click on this link: simbad:objects in 2025A&A...704A.221V and select 'bookmark this link' or equivalent in the popup menu