2017AJ....153..211Z


Query : 2017AJ....153..211Z

2017AJ....153..211Z - Astron. J., 153, 211-211 (2017/May-0)

HAT-P-67b: an extremely low density Saturn transiting an F-subgiant confirmed via Doppler tomography.

ZHOU G., BAKOS G.A., HARTMAN J.D., LATHAM D.W., TORRES G., BHATTI W., PENEV K., BUCHHAVE L., KOVACS G., BIERYLA A., QUINN S., ISAACSON H., FULTON B.J., FALCO E., CSUBRY Z., EVERETT M., SZKLENAR T., ESQUERDO G., BERLIND P., CALKINS M.L., BEKY B., KNOX R.P., HINZ P., HORCH E.P., HIRSCH L., HOWELL S.B., NOYES R.W., MARCY G., DE VAL-BORRO M., LAZAR J., PAPP I. and SARI P.

Abstract (from CDS):

We report the discovery of HAT-P-67b, which is a hot-Saturn transiting a rapidly rotating F-subgiant. HAT-P-67b has a radius of Rp=2.085–0.071+0.096 RJ, and orbites a M*=1.642–0.072+0.155 M, R*=2.546–0.084+0.099 R host star in a ∼4.81 day period orbit. We place an upper limit on the mass of the planet via radial velocity measurements to be Mp 0.59 MJ, and a lower limit of 0.056 MJ by limitations on Roche lobe overflow. Despite being a subgiant, the host star still exhibits relatively rapid rotation, with a projected rotational velocity of vsinI*=35.8±1.1 km s–1, which makes it difficult to precisely determine the mass of the planet using radial velocities. We validated HAT-P-67b via two Doppler tomographic detections of the planetary transit, which eliminate potential eclipsing binary blend scenarios. The Doppler tomographic observations also confirm that HAT-P-67b has an orbit that is aligned to within 12°, in projection, with the spin of its host star. HAT-P-67b receives strong UV irradiation and is among one of the lowest density planets known, which makes it a good candidate for future UV transit observations in the search for an extended hydrogen exosphere.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): planetary systems - stars: individual: HAT-P-67 - techniques: photometric - techniques: spectroscopic - techniques: spectroscopic

VizieR on-line data: <Available at CDS (J/AJ/153/211): table1.dat>

Simbad objects: 24

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Number of rows : 24
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+00 316b Pl 01 57 03.2040575164 +00 45 31.878858095           ~ 22 1
2 HD 15082b Pl 02 26 51.0582746497 +37 33 01.737746137           ~ 296 1
3 HD 33643b Pl 05 13 10.9287552017 +33 19 05.403226195           ~ 46 0
4 BD+73 323b Pl 06 19 10.3709818716 +73 49 39.591973430           ~ 20 0
5 BD+14 1881b Pl 08 22 28.2047273887 +13 44 07.144536685           ~ 22 0
6 K2-97b Pl 08 31 03.0822343319 +10 50 51.310610665           ~ 22 0
7 HAT-P-66b Pl 10 02 17.4467523515 +53 57 03.201917998           ~ 13 0
8 HD 93396b Pl 10 46 49.7401049044 -09 23 56.494554407           ~ 41 0
9 BD+44 2654 * 17 06 26.5608176640 +44 46 37.068471552   10.55 10.11     F5 11 0
10 BD+44 2654b Pl 17 06 26.5609615957 +44 46 37.067610069           ~ 15 0
11 BD+10 3472b Pl 18 18 58.4251610587 +10 35 50.127796088           ~ 25 0
12 HD 343246b Pl 18 53 13.3242476687 +24 07 38.577256862           ~ 21 0
13 Kepler-91b Pl 19 02 41.4979092591 +44 07 00.239792240           ~ 75 1
14 NAME BD+46 2629Ab Pl 19 07 53.1396671301 +46 52 05.931203366           ~ 148 1
15 KOI-680b Pl? 19 29 08.9490750554 +43 11 50.160271524           ~ 6 1
16 Kepler-432b Pl 19 33 07.7292128625 +48 17 09.145380998           ~ 47 0
17 Kepler-56 RG* 19 35 02.0011980936 +41 52 18.692360400           ~ 159 1
18 Kepler-56b Pl 19 35 02.0013983772 +41 52 18.691751459           ~ 53 1
19 Kepler-448b Pl 19 49 48.8934839086 +41 00 39.627563600           ~ 41 0
20 KOI-206b Pl? 19 50 22.4723160971 +40 58 38.154163615           ~ 6 1
21 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1323 1
22 HAT-P-65b Pl 21 03 37.3130322350 +11 59 21.818252808           ~ 16 0
23 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1743 1
24 BD-09 6003b Pl 22 33 28.4131203136 -09 01 21.977123684           ~ 18 0

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2023.02.06-08:23:10

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