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.
Detection limits of exoplanetary atmospheres with 2-m class telescopes
KABATH P., ZAK J., BOFFIN H., IVANOV V., JONES D. & SKARKA M.
PASP
, 131
, 085001
paperarxiv
Sodium and Potassium Signatures of Volcanic Satellites Orbiting Close-in Gas Giant Exoplanets
OZA A., JOHNSON R., LELLOUCH E., SCHMIDT C., SCHNEIDER N. et al.
ApJ
, 885
, 168
paperarxiv
Model-independent exoplanet transit spectroscopy
ARONSON E. & PISKUNOV N.
Astron. J.
, 155
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paperarxiv
High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016
EVANS D., SOUTHWORTH J., SMALLEY B., JORGENSEN U., DOMINIK M., ANDERSEN M. et al.
Astron. & Astrophys.
, 610
, A20
paperarxiv
Aerosol Constraints on the Atmosphere of the Hot Saturn-mass Planet WASP-49b
CUBILLOS P., FOSSATI L., ERKAEV N., MALIK M., TOKANO T. et al.
ApJ
, 849
, 145
paperarxiv
Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) I. Detection of hot neutral sodium at high altitudes on WASP-49b
WYTTENBACH A., LOVIS Ch., EHRENREICH D., BOURRIER V., PINO L. et al.
Astron. & Astrophy.
, 602
, A36
paperarxivADS
The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets
BONOMO A., DESIDERA S., BENATTI S., BORSA F., CRESPI S. et al.
Astron. & Astrophys.
, 602
, A107
paperarxivADS
Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
STASSUN K. G., COLLINS K. A. & GAUDI B. S.
Astron. J.
, 153
, 136
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FORS2 observes a multi-epoch transmission spectrum of the hot Saturn-mass exoplanet WASP-49b
LENDL M., DELREZ L., GILLON M., MADHUSUDHAN N., JEHIN E. et al.
Astron. & Astrophys.
, 587
, A67
paperarxivADS href="http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2015arXiv151206698L&db_key=PRE&link_type=ABSTRACT&high=56bc4f634528078">ADS
WASP-42 b and WASP-49 b: two new transiting Saturns
LENDL M., ANDERSON D., COLLIER-CAMERON A., DOYLE A., GILLON M. & 14 additional authors
Astron. & Astrophys.
, 544
, A72
paperarxiv
A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS
, 423, Issue 3
, 2800-2814
paperarxiv
Status of the WASP-South Search for Transiting Planets