WASP-29#Planetary system

{{Starbox begin

| name = WASP-29

}}

{{Starbox observe

| epoch = J2000

| constell = Phoenix

| ra = {{RA|23|51|31.08391}}

| dec = {{DEC|-39|54|24.2582}}

| appmag_v = 11.33

}}

{{Starbox character

| component1 = WASP-29A

| type = main sequence star

| class = K4V

| b-v = 0.82

| j-h = 0.478

| j-k = 0.570

| variable =

| component2 = WASP-29B

| class2 = M3V

}}

{{Starbox astrometry

| radial_v = {{val|24.31|0.20}}

| prop_mo_ra = {{val|-56.767|(14)}}

| prop_mo_dec = {{val|-88.988|(13)}}

| pm_footnote =

| parallax = 11.4349

| p_error = 0.0151

| parallax_footnote =

| absmag_v =

| absmag_bol =

}}

{{Starbox relpos

| reference =

| epoch = 2021

| primary = WASP-29A

| component = WASP-29B

| angdistsec = 125.2

| posang =

| projsep = 10994

}}

{{Starbox detail

| source =

| component1 = WASP-29A

| mass = {{val|0.825|0.033}}

| radius = {{val|0.808|0.044}}

| luminosity =

| gravity = 4.5{{±|0.2}}

| temperature = {{val|4800|150}}

| metal_fe = {{val|0.11|0.14}}

| rotation =

| rotational_velocity = {{val|1.50|0.60}}

| age_gyr = {{val|14|0|7}}

| component2 = WASP-29B

| mass2 = 0.38

}}

{{Starbox catalog

| names = {{odlist | 2MASS = J23513108-3954241 | CD = -40 15273 | DENIS = J235131.0-395423 | TIC = 183537452 | TOI = 192 | TYC = 8015-1020-1 | WASP = 29}}

| component1 = WASP-29A

| names1 = Gaia DR3 6534414719318886144

| component2 = WASP-29B

| names2 = Gaia DR3 6534426740931264896

}}

{{Starbox reference

| Simbad = WASP-29

}}

WASP-29 is a binary star system {{convert|285|ly|pc|lk=on|abbr=off}} away in the constellation of Phoenix. The primary star is a K-type main-sequence star. Its comoving companion, a red dwarf star, was discovered in 2021. The star system kinematically belongs to the thin disk of the Milky Way. The primary is an old star with small starspot activity and low x-ray flux.{{citation|arxiv=2103.15688|year=2021|title=HST PanCET program: Non-detection of atmospheric escape in the warm Saturn-sized planet WASP-29 B|doi=10.1051/0004-6361/202140491|last1=Dos Santos|first1=L. A.|last2=Bourrier|first2=V.|last3=Ehrenreich|first3=D.|last4=Sanz-Forcada|first4=J.|last5=López-Morales|first5=M.|last6=Sing|first6=D. K.|last7=García Muñoz|first7=A.|last8=Henry|first8=G. W.|last9=Lavvas|first9=P.|last10=Lecavelier Des Etangs|first10=A.|last11=Mikal-Evans|first11=T.|last12=Vidal-Madjar|first12=A.|last13=Wakeford|first13=H. R.|journal=Astronomy & Astrophysics|volume=649|pages=A40|bibcode=2021A&A...649A..40D |s2cid=232417342}}

Planetary system

The "hot Saturn" class planet WASP-29b was discovered around WASP-29 in 2010. The planet would have an equilibrium temperature of 960{{±|30}} K. The planetary atmosphere has abundant carbon monoxide but likely lacks methane[https://www.researchgate.net/publication/258613250_WASP-29b_Another_Cool_Exoplanet_With_Abundant_CO Matthew Hardin, Joseph Harrington, K. Stevenson, "WASP-29b: Another Cool Exoplanet With Abundant CO?"] and sodium,[https://ieeexplore.ieee.org/document/8181352 A Gemini ground-based transmission spectrum of WASP-29b: a featureless spectrum from 515 to 720 nm] although the high and dense cloud deck of WASP-29b prevents high-quality spectroscopic measurements.{{citation|arxiv=2205.10765|year=2022|title=The Hubble PanCET Program: A Featureless Transmission Spectrum for WASP-29b and Evidence of Enhanced Atmospheric Metallicity on WASP-80b|doi=10.3847/1538-3881/ac7234 |last1=Wong |first1=Ian |last2=Chachan |first2=Yayaati |last3=Knutson |first3=Heather A. |last4=Henry |first4=Gregory W. |last5=Adams |first5=Danica |last6=Kataria |first6=Tiffany |last7=Benneke |first7=Björn |last8=Gao |first8=Peter |last9=Deming |first9=Drake |last10=López-Morales |first10=Mercedes |last11=Sing |first11=David K. |last12=Alam |first12=Munazza K. |last13=Ballester |first13=Gilda E. |last14=Barstow |first14=Joanna K. |last15=Buchhave |first15=Lars A. |last16=Dos Santos |first16=Leonardo A. |last17=Fu |first17=Guangwei |last18=Muñoz |first18=Antonio García |last19=MacDonald |first19=Ryan J. |last20=Mikal-Evans |first20=Thomas |last21=Sanz-Forcada |first21=Jorge |last22=Wakeford |first22=Hannah R. |journal=The Astronomical Journal |volume=164 |issue=1 |page=30 |bibcode=2022AJ....164...30W |s2cid=248987053 |doi-access=free }}

A study in 2018 revealed the stability of planetary orbits in the habitable zone of WASP-29 is significantly affected by the WASP-29b planet.

{{OrbitboxPlanet begin

| name = WASP-29

| table_ref =

}}

{{OrbitboxPlanet

| exoplanet = b

| mass = {{val|0.243|0.020|0.019}}

| period = {{val|3.92271218|(25)}}

| semimajor = {{val|0.0470|0.0025}}

| radius = {{val|0.775|0.031}}

| eccentricity = <0.059

| inclination = {{val|89.468|0.018|0.017}}

}}

References

{{reflist|refs=

{{cite journal|arxiv=1009.5318|doi=10.1088/2041-8205/723/1/L60|title=WASP-29b: A SATURN-SIZED TRANSITING EXOPLANET|year=2010|last1=Hellier|first1=Coel|last2=Anderson|first2=D. R.|last3=Collier Cameron|first3=A.|last4=Gillon|first4=M.|last5=Lendl|first5=M.|last6=Maxted|first6=P. F. L.|last7=Queloz|first7=D.|last8=Smalley|first8=B.|last9=Triaud|first9=A. H. M. J.|last10=West|first10=R. G.|last11=Brown|first11=D. J. A.|last12=Enoch|first12=B.|last13=Lister|first13=T. A.|last14=Pepe|first14=F.|last15=Pollacco|first15=D.|last16=Ségransan|first16=D.|last17=Udry|first17=S.|journal=The Astrophysical Journal|volume=723|issue=1|pages=L60–L63|bibcode=2010ApJ...723L..60H|s2cid=64119308}}

{{cite journal |last1=Bonomo |first1=A. S. |last2=Desidera |first2=S. |display-authors=etal |date=June 2017 |title=The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets |journal=Astronomy & Astrophysics |volume=602 |issue= |pages=A107 |doi=10.1051/0004-6361/201629882 |arxiv=1704.00373 |bibcode=2017A&A...602A.107B|s2cid=118923163 }}

{{cite journal |last1=Georgakarakos |first1=Nikolaos |last2=Eggl |first2=Siegfried |last3=Dobbs-Dixon |first3=Ian |date=April 2018 |title=Giant Planets: Good Neighbors for Habitable Worlds? |journal=The Astrophysical Journal |volume=856 |issue=2 |pages=155 |doi=10.3847/1538-4357/aaaf72 |arxiv=1804.02183 |bibcode=2018ApJ...856..155G |doi-access=free }}

{{citation|arxiv=2101.12667|year=2021|title=The Census of Exoplanets in Visual Binaries: population trends from a volume-limited Gaia DR2 and literature search|last1=Fontanive|first1=Clémence|author2=Daniella Bardalez Gagliuffi|journal=Frontiers in Astronomy and Space Sciences |volume=8 |page=16 |doi=10.3389/fspas.2021.625250 |bibcode=2021FrASS...8...16F |doi-access=free }}

{{citation|arxiv=2109.11366|year=2021|title=Critical Analysis of Tess Transit Photometric Data: Improved Physical Properties for Five Exoplanets|doi=10.3847/1538-3881/ac294d |last1=Saha |first1=Suman |last2=Sengupta |first2=Sujan |journal=The Astronomical Journal |volume=162 |issue=5 |page=221 |bibcode=2021AJ....162..221S |s2cid=237605336 |doi-access=free }}

}}

Category:Phoenix (constellation)

Category:Planetary systems with one confirmed planet

Category:Binary stars

Category:K-type main-sequence stars

Category:M-type main-sequence stars

Category:Planetary transit variables