scholarly journals An enhanced slope in the transmission spectrum of the hot Jupiter WASP-104b

2020 ◽  
Vol 500 (4) ◽  
pp. 5420-5435
Author(s):  
G Chen ◽  
E Pallé ◽  
H Parviainen ◽  
H Wang ◽  
R van Boekel ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Optical Transmission Spectrum ◽  
Light Curves ◽  
Physical Origin ◽  
Detailed Characterization ◽  
Companion Star ◽  
System Parameters ◽  
Hot Jupiter

ABSTRACT We present the optical transmission spectrum of the hot Jupiter WASP-104b based on one transit observed by the blue and red channels of the Double Spectrograph (DBSP) at the Palomar 200-inch telescope and 14 transits observed by the MuSCAT2 four-channel imager at the 1.52-m Telescopio Carlos Sánchez. We also analyse 45 additional K2 transits, after correcting for the flux contamination from a companion star. Together with the transit light curves acquired by DBSP and MuSCAT2, we are able to revise the system parameters and orbital ephemeris, confirming that no transit timing variations exist. Our DBSP and MuSCAT2 combined transmission spectrum reveals an enhanced slope at wavelengths shorter than 630 nm and suggests the presence of a cloud deck at longer wavelengths. While the Bayesian spectral retrieval analyses favour a hazy atmosphere, stellar spot contamination cannot be completely ruled out. Further evidence, from transmission spectroscopy and detailed characterization of the host star’s activity, is required to distinguish the physical origin of the enhanced slope.

scholarly journals The optical transmission spectrum of the hot Jupiter HAT-P-32b: clouds explain the absence of broad spectral features?

2013 ◽  
Vol 436 (4) ◽  
pp. 2974-2988 ◽  
Author(s):  
N. P. Gibson ◽  
S. Aigrain ◽  
J. K. Barstow ◽  
T. M. Evans ◽  
L. N. Fletcher ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Optical Transmission Spectrum ◽  
Spectral Features ◽  
Hot Jupiter

scholarly journals ACCESS: An Optical Transmission Spectrum of the High-gravity Hot Jupiter HAT-P-23b

2021 ◽  
Vol 161 (6) ◽  
pp. 278
Author(s):  
Ian C. Weaver ◽  
Mercedes López-Morales ◽  
Munazza K. Alam ◽  
Néstor Espinoza ◽  
Benjamin V. Rackham ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Optical Transmission Spectrum ◽  
High Gravity ◽  
Hot Jupiter

scholarly journals An optical transmission spectrum of the transiting hot Jupiter in the metal-poor WASP-98 planetary system

2016 ◽  
Vol 461 (1) ◽  
pp. 1053-1061 ◽  
Author(s):  
L. Mancini ◽  
M. Giordano ◽  
P. Mollière ◽  
J. Southworth ◽  
R. Brahm ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Planetary System ◽  
Optical Transmission Spectrum ◽  
Hot Jupiter

scholarly journals An Optical Transmission Spectrum for the Ultra-hot Jupiter WASP-121b Measured with the Hubble Space Telescope

2018 ◽  
Vol 156 (6) ◽  
pp. 283 ◽  
Author(s):  
Thomas M. Evans ◽  
David K. Sing ◽  
Jayesh M. Goyal ◽  
Nikolay Nikolov ◽  
Mark S. Marley ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Hubble Space Telescope ◽  
Optical Transmission Spectrum ◽  
Space Telescope ◽  
Hot Jupiter

scholarly journals Gemini/GMOS Transmission Spectral Survey: Complete Optical Transmission Spectrum of the Hot Jupiter WASP-4b

2017 ◽  
Vol 154 (3) ◽  
pp. 95 ◽  
Author(s):  
C. M. Huitson ◽  
J.-M. Désert ◽  
J. L. Bean ◽  
J. J. Fortney ◽  
K. B. Stevenson ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Optical Transmission Spectrum ◽  
Spectral Survey ◽  
Hot Jupiter

scholarly journals ACCESS I. AN OPTICAL TRANSMISSION SPECTRUM OF GJ 1214b REVEALS A HETEROGENEOUS STELLAR PHOTOSPHERE

2017 ◽  
Vol 834 (2) ◽  
pp. 151 ◽  
Author(s):  
Benjamin Rackham ◽  
Néstor Espinoza ◽  
Dániel Apai ◽  
Mercedes López-Morales ◽  
Andrés Jordán ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Optical Transmission Spectrum ◽  
Stellar Photosphere

scholarly journals WASP-180Ab: Doppler tomography of a hot Jupiter orbiting the primary star in a visual binary

2019 ◽  
Vol 490 (2) ◽  
pp. 2467-2474
Author(s):  
L Y Temple ◽  
C Hellier ◽  
D R Anderson ◽  
K Barkaoui ◽  
F Bouchy ◽  
...  
Keyword(s):  
Binary Systems ◽  
Rotation Speed ◽  
Small Sample ◽  
Primary Star ◽  
Doppler Tomography ◽  
Companion Star ◽  
Hot Jupiters ◽  
Rotational Modulation ◽  
Hot Jupiter

ABSTRACT We report the discovery and characterization of WASP-180Ab, a hot Jupiter confirmed by the detection of its Doppler shadow and by measuring its mass using radial velocities. We find the 0.9  ±  0.1 MJup, 1.24  ±  0.04 RJup planet to be in a misaligned, retrograde orbit around an F7 star with Teff  =  6500 K and a moderate rotation speed of vsin i⋆  =  19.9 km s−1. The host star is the primary of a V  =  10.7 binary, where a secondary separated by ∼5 arcsec (∼1200 au) contributes ∼ 30 per cent of the light. WASP-180Ab therefore adds to a small sample of transiting hot Jupiters known in binary systems. A 4.6-d modulation seen in the WASP data is likely to be the rotational modulation of the companion star, WASP-180B.

scholarly journals ACCESS and LRG-BEASTS: A Precise New Optical Transmission Spectrum of the Ultrahot Jupiter WASP-103b

2021 ◽  
Vol 162 (1) ◽  
pp. 34
Author(s):  
James Kirk ◽  
Benjamin V. Rackham ◽  
Ryan J. MacDonald ◽  
Mercedes López-Morales ◽  
Néstor Espinoza ◽  
...  
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Optical Transmission Spectrum

scholarly journals Hydrogen and Sodium Absorption in the Optical Transmission Spectrum of WASP-12b

2018 ◽  
Vol 156 (4) ◽  
pp. 154 ◽  
Author(s):  
Adam G. Jensen ◽  
P. Wilson Cauley ◽  
Seth Redfield ◽  
William D. Cochran ◽  
Michael Endl
Keyword(s):  
Transmission Spectrum ◽  
Optical Transmission ◽  
Optical Transmission Spectrum ◽  
Sodium Absorption
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