Planet WASP-49 Ab

Detailed information about planet WASP-49 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

WASP-49 Ab

Planet Status

Confirmed

Discovered in

2011

Publication Status

Published in a refereed paper

Update

2024-07-31

Mass

0.399 (\pm 0.03)

M_J 2 publications

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b
WASP-42 b and WASP-49 b: two new transiting Saturns

Mass*sin(i)

—

Semi-Major Axis

0.03873 (\pm 0.0013)

AU 2 publications

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b
WASP-42 b and WASP-49 b: two new transiting Saturns

Orbital Period

2.7817387 (\pm 5.6e-06)

day 1 publication

WASP-42 b and WASP-49 b: two new transiting Saturns

Eccentricity

0.0 1 publication

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b

Angular distance

—

ω

90.0 deg 1 publication

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b

T_peri

—

Radius

1.198 (\pm 0.047)

R_J 2 publications

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b
WASP-42 b and WASP-49 b: two new transiting Saturns

Inclination

84.48 (\pm 0.13)

deg 2 publications

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b
WASP-42 b and WASP-49 b: two new transiting Saturns

Detection Method

Primary Transit

Mass Meas. Method

—

Radius Meas. Method

Primary Transit

Primary transit

2455580.59436 (\pm 0.00029)

JD 1 publication

WASP-42 b and WASP-49 b: two new transiting Saturns

Secondary transit

—

λ

—

Impact Parameter b

0.7704 (\begin{matrix} + 0.0072 \\ - 0.0077 \end{matrix})

1 publication

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b

Time V_r=0

—

Velocity Semiamplitude K

57.5 (\pm 2.1)

m/s

Calculated temperature

1400.0 (\pm 80.0)

K 1 publication

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

TOI-479 b, TOI-479 Ab, TOI-479.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Reference
K
K	Measurements	Detected	2020 - GEBEK A. & OZA A.
Na
	Measurements	Detected	2020 - GEBEK A. & OZA A.
	Measurements	Detected	2017 - WYTTENBACH A.

Oza et al. (2019): An interesting hypothesis about the sodium envelope around WASP-49 Ab is that it could be due to an Io-like exomoon.
See also Planets in Binaries webpage.

No link

Star

Name

WASP-49 A

Distance

194.553 (\begin{matrix} + 1.203 \\ - 1.189 \end{matrix})

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

G5V

Apparent magnitude V

11.35

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.989 (\begin{matrix} + 0.133 \\ - 0.114 \end{matrix})

M_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Age

11.9 (\begin{matrix} + 0.8 \\ - 3.2 \end{matrix})

Gyr 1 publication

The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets

Effective temperature

5597.0 (\begin{matrix} + 101.0 \\ - 140.4 \end{matrix})

K 1 publication

The Revised TESS Input Catalog and Candidate Target List

Radius

1.02 (\begin{matrix} + 0.03 \\ - 0.066 \end{matrix})

R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

-0.23 (\pm 0.07)

1 publication

The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

06:04:21.5

Dec₂₀₀₀

-16:57:55.1

Alternate Names

TOI-479

A K dwarf companion star lies 443 AUs away.

No link

Simbad
Most recent references (ADS)

Planet WASP-49 Ab

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 2 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Planet WASP-49 Ab

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 2 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

Extreme exomoons in WASP-49 Ab: dynamics and detectability

Gaia Search for (sub)stellar Companions of Exoplanet Hosts

Exomoon Phase Curves: Toroidal Exosphere Simulations of Exo-Ios Orbiting 8 Exoplanets in Alkali Spectroscopy

Redshifted Sodium Transient near Exoplanet Transit

Radio-Loud Exoplanet-Exomoon Survey (RLEES): GMRT Search for Electron Cyclotron Maser Emission

Featureless transmission spectra of 12 giant exoplanets observed by GTC/OSIRIS

A survey of sodium absorption in ten giant exoplanets with high-resolution transmission spectroscopy

Alkaline Exospheres of Exoplanet Systems: Evaporative Transmission Spectra

The Revised TESS Input Catalog and Candidate Target List

Search for stellar companions of exoplanet host stars by exploring the second ESA-Gaia data release

Detection limits of exoplanetary atmospheres with 2-m class telescopes

Sodium and Potassium Signatures of Volcanic Satellites Orbiting Close-in Gas Giant Exoplanets

Model-independent exoplanet transit spectroscopy

High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016

Aerosol Constraints on the Atmosphere of the Hot Saturn-mass Planet WASP-49b

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b

The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets

Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes

FORS2 observes a multi-epoch transmission spectrum of the hot Saturn-mass exoplanet WASP-49b

WASP-42 b and WASP-49 b: two new transiting Saturns

A Uniformly Derived Catalogue of Exoplanets from Radial Velocities

Status of the WASP-South Search for Transiting Planets

The Exoplanet Handbook