WASP-32#Planetary system

{{short description|Star in the constellation Pisces}}

{{Starbox begin

| name = WASP-32 / Parumleo

}}

{{Starbox observe

| epoch = J2000

| constell = Pisces

| ra = {{RA|00|15|50.80778}}{{cite DR2}}

| dec = {{DEC|01|12|01.5868}}

| appmag_v = 11.26{{cite journal|title=The Tycho-2 catalogue of the 2.5 million brightest stars|author1=Høg, E.|display-authors=etal|date=2000|journal=Astronomy and Astrophysics|volume=355|pages=L27–L30|bibcode=2000A&A...355L..27H}}

}}

{{Starbox character

| type = main sequence star

| class = G0V

| r-i =

| v-r =

| b-v = -0.2

| u-b =

| j-h = 0.005

| j-k = 0.342

| variable =

}}

{{Starbox astrometry

| radial_v = {{val|18.41|0.83}}{{cite simbad|title=WASP-32|access-date=2020-05-09}}

| total_v =

| prop_mo_ra = {{val|1.896|0.09}}

| prop_mo_dec = {{val|16.589|0.062}}

| parallax = 3.5949

| p_error = 0.0431

| parallax_footnote =

| absmag_v =

| absmag_bol =

}}

{{Starbox detail

| source =

| mass = {{val|1.10|0.03}}

| radius = {{val|1.11|0.05}}

| luminosity = 1.5

| gravity = {{val|4.39|0.03}}

| temperature = {{val|6100|100}}

| metal_fe = {{val|−0.13|0.10}}

| rotation =

| rotational_velocity = {{val|4.8|0.8}}

| age_gyr =

}}

{{Starbox catalog

| names = {{odlist|TYC=2-1155-1|2MASS=J00155080+0112016|Gaia DR2=2546413408888429696|name=Parumleo}}

}}

{{Starbox reference

|Simbad=WASP-32

}}

{{Starbox end}}

WASP-32 (also known as TYC 2-1155-1) is a yellow main-sequence star in the constellation of Pisces. The star was given the formal name Parumleo in January 2020, Latin for small lion and referencing the national animal of Singapore.[https://www.straitstimes.com/singapore/a-star-and-its-orbiting-planet-now-bear-names-with-singapore-connection A star and its orbiting planet now bear names with Singapore connection]

Star characteristics

The WASP-32 star is relatively depleted of lithium, which is common for massive stars hosting hot Jupiter planets.

Planetary system

The "hot Jupiter" class planet WASP-32 b, later named Viculus, was discovered around WASP-32 in 2010.{{cite journal|arxiv=1010.1742|doi=10.1086/657658|title=WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star|year=2010|last1=Maxted|first1=P. F. L.|last2=Anderson|first2=D. R.|last3=Collier Cameron|first3=A.|last4=Gillon|first4=M.|last5=Hellier|first5=C.|last6=Queloz|first6=D.|last7=Smalley|first7=B.|last8=Triaud|first8=A. H. M. J.|last9=West|first9=R. G.|last10=Enoch|first10=R.|last11=Lister|first11=T. A.|last12=Pepe|first12=F.|last13=Pollacco|first13=D. L.|last14=Ségransan|first14=D.|last15=Skillen|first15=I.|last16=Udry|first16=S.|journal=Publications of the Astronomical Society of the Pacific|volume=122|issue=898|pages=1465–1470|bibcode=2010PASP..122.1465M|s2cid=55625415}}

It was found to orbit the parent star in prograde direction in 2014.{{cite journal|arxiv=1403.4095|doi=10.1093/mnras/stu520|title=A window on exoplanet dynamical histories: Rossiter–Mc Laughlin observations of WASP-13b and WASP-32b|year=2014|last1=Brothwell|first1=R. D.|last2=Watson|first2=C. A.|last3=Hébrard|first3=G.|last4=Triaud|first4=A. H. M. J.|last5=Cegla|first5=H. M.|last6=Santerne|first6=A.|last7=Hébrard|first7=E.|last8=Anderson|first8=D. R.|last9=Pollacco|first9=D.|last10=Simpson|first10=E. K.|last11=Bouchy|first11=F.|last12=Brown|first12=D. J. A.|last13=Chew|first13=Y. Gómez Maqueo|last14=Cameron|first14=A. Collier|last15=Armstrong|first15=D. J.|last16=Barros|first16=S. C. C.|last17=Bento|first17=J.|last18=Bochinski|first18=J.|last19=Burwitz|first19=V.|last20=Busuttil|first20=R.|last21=Delrez|first21=L.|last22=Doyle|first22=A. P.|last23=Faedi|first23=F.|last24=Fumel|first24=A.|last25=Gillon|first25=M.|last26=Haswell|first26=C. A.|last27=Hellier|first27=C.|last28=Jehin|first28=E.|last29=Kolb|first29=U.|last30=Lendl|first30=M.|journal=Monthly Notices of the Royal Astronomical Society|volume=440|issue=4|pages=3392–3401|doi-access=free |bibcode=2014MNRAS.440.3392B|s2cid=118435056|display-authors=29}}

The follow-up study utilizing transit timing variation analysis, have failed to find any, therefore have excluded existence of other massive planets around WASP-32 as in 2015.[https://iopscience.iop.org/article/10.1088/1674-4527/15/1/011 Lei-Lei Sun, Sheng-Hong Gu, Xiao-Bin Wang at al., "Long-term transit timing monitoring and homogenous study of WASP-32", 2015]

{{OrbitboxPlanet begin

| name = WASP-32

| table_ref=[https://exoplanet.eu/catalog/wasp_32_b--749/ Planet WASP-32 b]

}}

{{OrbitboxPlanet

| exoplanet = b (Viculus)

| mass = 3.6{{±|0.07}}

| period = 2.71865{{±|0.00008}}

| semimajor = 0.0394{{±|0.0003}}

| radius = 1.18{{±|0.07}}

| eccentricity = 0.018{{±|0.0065}}

| inclination = 85.3{{±|0.5}}

}}

{{Orbitbox end}}

References