2018A&A...612A..57T


Query : 2018A&A...612A..57T

2018A&A...612A..57T - Astronomy and Astrophysics, volume 612A, 57-57 (2018/4-1)

MASCARA-2 b. A hot Jupiter transiting the mV = 7.6 A-star HD 185603.

TALENS G.J.J., JUSTESEN A.B., ALBRECHT S., McCORMAC J., VAN EYLEN V., OTTEN G.P.P.L., MURGAS F., PALLE E., POLLACCO D., STUIK R., SPRONCK J.F.P., LESAGE A.-L., GRUNDAHL F., FREDSLUND ANDERSEN M., ANTOCI V. and SNELLEN I.A.G.

Abstract (from CDS):

In this paper we present MASCARA-2 b, a hot Jupiter transiting the mV=7.6 A2 star HD 185603. Since early 2015, MASCARA has taken more than 1.6 million flux measurements of the star, corresponding to a total of almost 3000h of observations, revealing a periodic dimming in the flux with a depth of 1.3%. Photometric follow-up observations were performed with the NITES and IAC80 telescopes and spectroscopic measurements were obtained with the Hertzsprung SONG telescope. We find MASCARA-2 b orbits HD 185603 with a period of 3.474119+0.000005–0.000006days at a distance of 0.057±0.006au, has a radius of 1.83±0.07RJ and place a 99% upper limit on the mass of <17MJ. HD 185603 is a rapidly rotating early-type star with an effective temperature of 8980+90–130K and a mass and radius of 1.89+0.06–0.05M☉, 1.60±0.06R☉, respectively. Contrary to most other hot Jupiters transiting early-type stars, the projected planet orbital axis and stellar spin axis are found to be aligned with λ=0.6±4°. The brightness of the host star and the high equilibrium temperature, 2260±50K, of MASCARA-2 b make it a suitable target for atmospheric studies from the ground and space. Of particular interest is the detection of TiO, which has recently been detected in the similarly hot planets WASP-33 b and WASP-19 b.

Abstract Copyright: © ESO 2018

Journal keyword(s): planetary systems - stars: individual: (MASCARA-2 (HD 185603, HIP 96618))

VizieR on-line data: <Available at CDS (J/A+A/612/A57): mascara.dat iac80.dat nites.dat song.dat list.dat fits/*>

Simbad objects: 17

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Number of rows : 17
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 HD 15082b Pl 02 26 51.0582618096 +37 33 01.736482032           ~ 337 1
2 NAME BD+07 1721Ab Pl 07 26 02.2901761080 +07 36 56.815027668           ~ 26 0
3 BD+14 1881b Pl 08 22 28.2046820904 +13 44 07.143774288           ~ 30 0
4 WASP-19b Pl 09 53 40.0765648584 -45 39 33.057187596           ~ 370 1
5 CD-34 8618b Pl 13 04 10.5339280776 -35 32 58.322148612           ~ 26 0
6 BD+10 3472b Pl 18 18 58.4250287592 +10 35 50.129564460           ~ 28 0
7 NAME BD+46 2629Ab Pl 19 07 53.1397066992 +46 52 05.922122844           ~ 167 1
8 HD 185603 EB* 19 38 38.7352230144 +31 13 09.217127532   7.67 7.58     A0 54 0
9 HD 185603b Pl 19 38 38.7352230144 +31 13 09.217127532           ~ 126 0
10 Kepler-1171b Pl 19 39 50.1408685104 +38 35 29.690504628           ~ 15 0
11 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 893 1
12 Kepler-1571b Pl 20 03 44.5024315728 +45 35 47.533844868           ~ 10 0
13 HD 195689b Pl 20 31 26.3534153736 +39 56 19.773037500           ~ 277 0
14 HD 195689 SB* 20 31 26.3534153736 +39 56 19.773037500   7.59 7.56     A0 120 0
15 HD 201585b Pl 21 10 12.3723073896 +10 44 19.949472816           ~ 45 0
16 HD 201585 * 21 10 12.3723073896 +10 44 19.949472816   8.51 8.27     A8 37 0
17 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1112 1

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