Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 ...

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Draft version June 24, 2024
Typeset using L
A
TEX twocolumn style in AASTeX631
Transmission Spectroscopy of the Habitable ...

2
1. INTRODUCTION
Whether temperate rocky planets orbiting low-mass
stars have an atmosphere is arguably one of the most
i...

3
2. OBSERVATIONS
Two transits of LHS 1140 b were obtained with JWST
using the NIRISS instrument (Doyon et al. 2023) on
UT...

4
quadratic limb-darkening parameters q1 and q2 defined
in Kipping (2013) that ensure physical solutions for val-
ues betw...

Advertisement

5
0.990
0.992
0.994
0.996
0.998
1.000
1.002
Relative
Flux
Broadband
3 2 1 0 1 2
Time From Mid-Transit (hours)
0.92
0.94
0....

6
dictions of mini-Neptunes (Sect. 5.3). We also provide
a preliminary analysis of the transmission spectrum of
LHS 1140 c...

7
0.6 0.8 1 1.5 2 2.5
Wavelength ( m)
5100
5200
5300
5400
5500
5600
5700
5800
5900
Transit
Depth
(ppm)
Stellar Contam.
Ste...

8
parameters that do not improve the fit (see e.g., Trotta
2008) — since there are no apparent CO2 features in our
NIRISS ...

9
0.6 0.8 1.0 1.5 2.0 2.5 3.0
Wavelength ( m)
5300
5400
5500
5600
5700
5800
5900
Transit
Depth
(ppm)
Mini-Neptune Water wo...

Advertisement

10
line” (S ∝ v4
esc) of Zahnle Catling (2017) based on
Solar System objects appears as an orange band in the
figure, a r...

11
8 10 15 20 25
Wavelength ( m)
0
25
50
75
100
125
150
175
200
Contrast
(ppm)
288 K blackbody (Ab = 0, f = 2/3)
229 K bla...

12
Only three visits of 15 µm eclipse photometry with
MIRI is required to yield a 3-σ detection of the sec-
ondary eclipse...

13
Cadieux, C., Plotnykov, M., Doyon, R., et al. 2024, ApJL,
960, L3, doi: 10.3847/2041-8213/ad1691
Charnay, B., Blain, D....

14
Karman, T., Gordon, I. E., van der Avoird, A., et al. 2019,
Icarus, 328, 160, doi: 10.1016/j.icarus.2019.02.034
Kempton...

Advertisement

15
Zechmeister, M., Kürster, M. 2009, AA, 496, 577,
doi: 10.1051/0004-6361:200811296
Zieba, S., Kreidberg, L., Ducrot, E...

16
APPENDIX
A. DATA REDUCTION PIPELINES
The NIRISS data were reduced with two independent pipelines (SOSSISSE and supreme-...

17
Table B1. NIRISS SOSS transmission spectra of LHS 1140 b and c
Central wavelength (µm) Bandwidth (µm) Depth b (ppm) Err...

18
The stellar contamination only model yields consistent unocculted heterogeneity properties compared to LHS 1140 b:
ffac...

19
leaves a significant residual near 2.3 µm which is coincident with the CO bandhead, a well-known temperature- and
gravi...

Advertisement

20
Rp, ref = 1.762+0.002
−0.002
0
.
1
0
.
2
0
.
3
0
.
4
f
spot
fspot = 0.04+0.12
−0.03
0
.
1
0
.
2
0
.
3
0
.
4
f
fac
ffac ...

21
Rp, ref = 1.765+0.002
−0.002
5
.
2
5
.
6
6
.
0
Mp
Mp = 5.59+0.17
−0.17
1
6
0
2
4
0
3
2
0
T
T = 331+45
−91
0
.
1
0
.
2
0...

22
Rp, ref = 1.764+0.002
−0.002
5
.
2
5
.
6
6
.
0
Mp
Mp = 5.58+0.17
−0.17
1
6
0
2
4
0
3
2
0
T
T = 290+76
−124
1
0
.
0
7
.
...

23
Rp, ref = 1.758+0.005
−0.005
5
.
2
5
.
6
6
.
0
Mp
Mp = 5.60+0.16
−0.16
6
4
2
0
log
P
surf
log Psurf = −3.64+4.12
−2.05
...

24
Rp, ref = 1.259+0.006
−0.006
1
.
8
0
1
.
9
5
2
.
1
0
Mp
Mp = 1.91+0.05
−0.05
2
0
0
3
0
0
4
0
0
5
0
0
T
T = 285+190
−123...

Advertisement

25
E. GLOBAL CLIMATE MODEL SIMULATIONS AND SYNTHETIC OBSERVABLES
We performed a series of 3-D GCM (Global Climate Model) s...

26
than the dispersion of the NIRISS/SOSS spectrum, even accounting for the effect of clouds. However, these runaway
green...

Share Slideshare

LinkedIn
Facebook
Twitter

Embed

Size (px)

Show related Slideshows at end

WordPress Shortcode

Link

Share
Email

2024 Trend Updates: What Really Wor... by Search Engine Jou... 1050381 views
Storytelling For The Web: Integrate... by Chiara Aliotta 965124 views
Artificial Intelligence, Data and C... by OECD Directorate ... 896563 views
How to Leverage AI to Boost Employe... by SocialHRCamp 378582 views
2024 State of Marketing Report – by... by Marius Sescu 214693 views
Everything You Need To Know About C... by Expeed Software 233000 views

View on Slideshare

1 of 26 Ad

View on Slideshare

1 of 26 Ad