2017A&A...606A..73T


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST22:58:20

2017A&A...606A..73T - Astronomy and Astrophysics, volume 606A, 73-73 (2017/10-1)

MASCARA-1 b. A hot Jupiter transiting a bright mV = 8.3 A-star in a misaligned orbit.

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

Abstract (from CDS):

We report the discovery of MASCARA-1 b, which is the first exoplanet discovered with the Multi-site All-Sky CAmeRA (MASCARA). This exoplanet is a hot Jupiter orbiting a bright mV=8.3, rapidly rotating (vsini*>100km/s) A8 star with a period of 2.148780±8x10–6-days. The planet has a mass and radius of 3.7±0.9MJup and 1.5±0.3RJup, respectively. As with most hot Jupiters transiting early-type stars, we find a misalignment between the planet orbital axis and the stellar spin axis, which may be a signature of the formation and migration histories of this family of planets. MASCARA-1 b has a mean density of 1.5±0.9g/cm3 and an equilibrium temperature of 2570+50–30K, that is one of the highest temperatures known for a hot Jupiter to date. The system is reminiscent of WASP-33, but the host star lacks apparent delta-scuti variations, making the planet an ideal target for atmospheric characterization. We expect this to be the first of a series of hot Jupiters transiting bright early-type stars that will be discovered by MASCARA.

Abstract Copyright: © ESO, 2017

Journal keyword(s): planetary systems - stars: individual: MASCARA-1 - stars: individual: MASCARA-1

VizieR on-line data: <Available at CDS (J/A+A/606/A73): mascara.dat nites1.dat nites2.dat lists.dat song0/* listh.dat hermes0/*>

Nomenclature: MASCARA-Na (Nos 1, 1b).

Errata: erratum vol. 613, art. C2 (2018)

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 15082 dS* 02 26 51.0582746497 +37 33 01.737746137   8.41 8.14     kA5hA8mF4 135 1
2 BD+14 1881 * 08 22 28.2047273887 +13 44 07.144536685   9.53 9.23   8.948 A2 16 0
3 BD+10 3472 ** 18 18 58.4251610587 +10 35 50.127796088   10.96 10.64   10.007 ~ 17 0
4 BD+46 2629 Er* 19 07 53.104944 +46 52 06.00420   10.12 9.70 9.80   A0 129 0
5 HD 189733 BY* 20 00 43.7130382888 +22 42 39.071811263 9.241 8.578 7.648 7.126 6.68 K2V 720 1
6 HD 201585b Pl 21 10 12.3723474386 +10 44 19.944718883           ~ 14 0
7 HD 201585 * 21 10 12.3723474386 +10 44 19.944718883   8.51 8.27     A8 12 0
8 HD 209458 V* 22 03 10.7729598762 +18 53 03.548248479   8.21 7.63     F9V 994 1

    Equat.    Gal    SGal    Ecl

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2020.07.03-22:58:20

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