2017AJ....153...34C


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.31CET12:21:00

2017AJ....153...34C - Astron. J., 153, 34-34 (2017/January-0)

Near-infrared emission spectrum of WASP-103b using Hubble Space Telescope/Wide Field Camera 3.

CARTIER K.M.S., BEATTY T.G., ZHAO M., LINE M., NGO H., MAWET D., STASSUN K.G., WRIGHT J.T., KREIDBERG L., FORTNEY J. and KNUTSON H.

Abstract (from CDS):

We present here our observations and analysis of the dayside emission spectrum of the hot Jupiter WASP-103b. We observed WASP-103b during secondary eclipse using two visits of the Hubble Space Telescope with the G141 grism on Wide Field Camera 3 in spatial scan mode. We generated secondary eclipse light curves of the planet in both blended white-light and spectrally binned wavechannels from 1.1 to 1.7 µm and corrected the light curves for flux contamination from a nearby companion star. We modeled the detector systematics and secondary eclipse spectrum using Gaussian process regression and found that the near-IR emission spectrum of WASP-103b is featureless across the observed near-IR region to down to a sensitivity of 175 ppm, and shows a shallow slope toward the red. The atmosphere has a single brightness temperature of TB=2890 K across this wavelength range. This region of the spectrum is indistinguishable from isothermal, but may not manifest from a physically isothermal system, i.e., pseudo-isothermal. A solar-metallicity profile with a thermal inversion layer at 10–2 bar fits the spectrum of WASP-103b with high confidence, as do an isothermal profile with solar metallicity and a monotonically decreasing atmosphere with C/O > 1. The data rule out a monotonically decreasing atmospheric profile with solar composition, and we rule out a low-metallicity decreasing profile as unphysical for this system. The pseudo-isothermal profile could be explained by a thermal inversion layer just above the layer probed by our observations, or by clouds or haze in the upper atmosphere. Transmission spectra at optical wavelengths would allow us to better distinguish between potential atmospheric models.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): eclipses - planetary systems - planets and satellites: atmospheres - techniques: photometric - techniques: spectroscopic - techniques: spectroscopic

Simbad objects: 20

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Number of rows : 20

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 HAT-P-32b Pl 02 04 10.2775457769 +46 41 16.210382751           ~ 89 1
2 HD 15082b Pl 02 26 51.0582746497 +37 33 01.737746137           ~ 203 1
3 WASP-12b Pl 06 30 32.7966788910 +29 40 20.266334158           G0 561 1
4 CoRoT-1b Pl 06 48 19.1724141241 -03 06 07.710423478           ~ 155 1
5 * rho01 Cnc e Pl 08 52 35.8113282132 +28 19 50.956901366           ~ 414 1
6 WASP-43 PM* 10 19 38.0089444408 -09 48 22.603103969   13.4 12.4 12.08 11.10 K7V 85 1
7 WASP-43b Pl 10 19 38.0089444408 -09 48 22.603103969           ~ 213 1
8 HD 97658 PM* 11 14 33.1613362847 +25 42 37.391912066 9.049 8.569 7.714 7.259 6.835 K1V 131 1
9 WASP-103b Pl 16 37 15.5753608801 +07 11 00.119024745           ~ 96 1
10 WASP-103 * 16 37 15.5753608801 +07 11 00.119024745     12.1     F8V 34 1
11 NAME G 139-21b Pl 17 15 18.9337265994 +04 57 50.064695682           ~ 547 1
12 TrES-3 Pl 17 52 07.0185036683 +37 32 46.237002085           ~ 196 2
13 1SWASP J175207.01+373246.3 V* 17 52 07.0185036683 +37 32 46.237002085   13.114 12.402 12.06 11.603 G 63 1
14 NAME BD+46 2629Ab Pl 19 07 53.1396671301 +46 52 05.931203366           ~ 113 1
15 G 205-57C BD? 19 10 14.284032 +46 57 24.10632           ~ 31 0
16 CoRoT-2b Pl 19 27 06.4944821296 +01 23 01.357597206           ~ 187 1
17 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1107 1
18 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1507 1
19 WASP-4b Pl 23 34 15.0858223039 -42 03 41.049468209           ~ 125 1
20 CD-40 15273b Pl 23 51 31.0840161955 -39 54 24.259966546           ~ 50 1

    Equat.    Gal    SGal    Ecl

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2020.10.31-12:21:00

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