TY - JOUR
T1 - WASP-169, WASP-171, WASP-175 and WASP-182
T2 - One bloated sub-Saturn and three hot Jupiters discovered by WASP-south
AU - Nielsen, L. D.
AU - Bouchy, F.
AU - Turner, O. D.
AU - Anderson, D. R.
AU - Barkaoui, K.
AU - Burdanov, A.
AU - Cameron, A. Collier
AU - Delrez, L.
AU - Gillon, M.
AU - Ducrot, E.
AU - Hellier, C.
AU - Jehin, E.
AU - Lendl, M.
AU - Maxted, P. F. L.
AU - Pepe, F.
AU - Pollacco, D.
AU - Pozuelos, F. J.
AU - Queloz, D.
AU - Segransan, D.
AU - Smalley, B.
AU - Triaud, A. H. M. J.
AU - Udry, S.
AU - West, R. G.
AU - Zouhair, B.
PY - 2019/10/1
Y1 - 2019/10/1
N2 - We present the discovery of four new giant planets from the Wide Angle Search for Planets-South (WASP-South), three hot Jupiters and one bloated sub-Saturn mass planet: WASP-169b, WASP-171b, WASP-175b, and WASP-182b. Besides the discovery photometry from WASP-South we use radial velocity measurements from CORALIE and HARPS and follow-up photometry from EulerCam, TRAPPIST-North and -South, and SPECULOOS. WASP-169b is a low-density Jupiter (M=0.561±0.061MJup, R=1.304+0.150−0.073RJup) orbiting a V = 12.17 F8 subgiant in a 5.611 d orbit. WASP-171b is a typical hot Jupiter (M=1.084±0.094MJup, R=0.98+0.07−0.04RJup, P = 3.82 d) around a V = 13.05 G0 star. We find a linear drift in the radial velocities of WASP-171 spanning 3.5 yr, indicating the possibility of an additional outer planet or stellar companion. WASP-175b is an inflated hot Jupiter (M = 0.99 ± 0.13 MJup, R = 1.208 ± 0.081 RJup, P = 3.07 d) around a V = 12.04 F7 star, which possibly is part of a binary system with a star 7.9 arcsec away. WASP-182b is a bloated sub-Saturn mass planet (M = 0.148 ± 0.011 MJup, R = 0.850 ± 0.030 RJup) around a metal-rich V = 11.98 G5 star ([Fe/H] = 0.27 ± 0.11). With an orbital period of P = 3.377 d, it sits right in the apex of the sub-Jovian desert, bordering the upper and lower edge of the desert in both the mass–period and radius–period plane. WASP-169b, WASP-175b, and WASP-182b are promising targets for atmospheric characterization through transmission spectroscopy, with expected transmission signals of 121, 150, and 264 ppm, respectively.
AB - We present the discovery of four new giant planets from the Wide Angle Search for Planets-South (WASP-South), three hot Jupiters and one bloated sub-Saturn mass planet: WASP-169b, WASP-171b, WASP-175b, and WASP-182b. Besides the discovery photometry from WASP-South we use radial velocity measurements from CORALIE and HARPS and follow-up photometry from EulerCam, TRAPPIST-North and -South, and SPECULOOS. WASP-169b is a low-density Jupiter (M=0.561±0.061MJup, R=1.304+0.150−0.073RJup) orbiting a V = 12.17 F8 subgiant in a 5.611 d orbit. WASP-171b is a typical hot Jupiter (M=1.084±0.094MJup, R=0.98+0.07−0.04RJup, P = 3.82 d) around a V = 13.05 G0 star. We find a linear drift in the radial velocities of WASP-171 spanning 3.5 yr, indicating the possibility of an additional outer planet or stellar companion. WASP-175b is an inflated hot Jupiter (M = 0.99 ± 0.13 MJup, R = 1.208 ± 0.081 RJup, P = 3.07 d) around a V = 12.04 F7 star, which possibly is part of a binary system with a star 7.9 arcsec away. WASP-182b is a bloated sub-Saturn mass planet (M = 0.148 ± 0.011 MJup, R = 0.850 ± 0.030 RJup) around a metal-rich V = 11.98 G5 star ([Fe/H] = 0.27 ± 0.11). With an orbital period of P = 3.377 d, it sits right in the apex of the sub-Jovian desert, bordering the upper and lower edge of the desert in both the mass–period and radius–period plane. WASP-169b, WASP-175b, and WASP-182b are promising targets for atmospheric characterization through transmission spectroscopy, with expected transmission signals of 121, 150, and 264 ppm, respectively.
KW - planets and satellites: detection
KW - planets and satellites: individual: WASP-169b
KW - planets and satellites: individual: WASP-171b
KW - planets and satellites: individual: WASP-175b
KW - planets and satellites: individual: WASP-182b
U2 - 10.1093/mnras/stz2351
DO - 10.1093/mnras/stz2351
M3 - Article
SN - 0035-8711
VL - 489
SP - 2478
EP - 2487
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 2
ER -