WASP-32

WASP-32 / Parumleo
Observation data; Epoch J2000 Equinox J2000
Constellation	Pisces
Right ascension	00h 15m 50.80773s
Declination	+01° 12′ 01.5889″
Apparent magnitude (V)	11.26
Characteristics
Evolutionary stage	main sequence
Spectral type	mid-F
B−V color index	-0.2[citation needed]
J−H color index	0.005[citation needed]
J−K color index	0.342[citation needed]
Astrometry
Radial velocity (Rv)	18.27±0.32 km/s
Proper motion (μ)	RA: 1.951 mas/yr ; Dec.: 16.447 mas/yr
Parallax (π)	3.5706±0.0373 mas
Distance	913 ± 10 ly ; (280 ± 3 pc)
Details
Mass	1.10±0.03 M☉
Radius	1.09±0.03 R☉
Luminosity	1.6 L☉
Surface gravity (log g)	4.39±0.03 cgs
Temperature	6140+90; −100 K
Metallicity [Fe/H]	−0.13±0.10 dex
Rotation	11.6±1.0 d
Rotational velocity (v sin i)	3.9+0.4; −0.5 km/s
Age	2.22+0.62; −0.73 Gyr
Other designations
	Parumleo, TOI-4523, TIC 427332229, WASP-32, TYC 2-1155-1, 2MASS J00155080+0112016
Database references
SIMBAD	data
Exoplanet Archive	data

WASP-32, also named Parumleo, is an F-type main-sequence star about 913 light-years away in the constellation of Pisces.

Nomenclature

The designation WASP-32 comes from the Wide Angle Search for Planets.

This was one of the systems selected to be named in the 2019 NameExoWorlds campaign during the 100th anniversary of the IAU, which assigned each country a star and planet to be named. This system was assigned to Singapore. The star was given the formal name Parumleo in January 2020, Latin for small lion and referencing the national animal of Singapore, and the planet was named Viculus, Latin for little village.^[7]^[8]

Stellar characteristics

The WASP-32 star is relatively depleted of lithium, which is common for massive stars hosting hot Jupiter planets.^[4]

Planetary system

The hot Jupiter class planet WASP-32b, later named Viculus, was discovered around WASP-32 in 2010.^[4] It was found to orbit the parent star in a prograde direction in 2014.^[9]

A follow-up study utilizing transit-timing variation analysis failed to find any such variation, so there is no evidence of other massive planets around WASP-32 as of 2015.^[10]

The WASP-32 planetary system^[5]
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b (Viculus)	3.49+0.12 −0.11 $M$ _J	0.03904+0.00062 −0.00061	2.7186591(24)	<0.004	85.1±0.2°	1.10±0.04 $R$ _J

References

^ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
^ ^a ^b ^c ^d ^e ^f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
^ Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27 – L30. Bibcode:2000A&A...355L..27H.
^ ^a ^b ^c ^d ^e ^f Maxted, P. F. L.; Anderson, D. R.; Collier Cameron, A.; Gillon, M.; Hellier, C.; Queloz, D.; Smalley, B.; Triaud, A. H. M. J.; West, R. G.; Enoch, R.; Lister, T. A.; Pepe, F.; Pollacco, D. L.; Ségransan, D.; Skillen, I.; Udry, S. (2010). "WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star". Publications of the Astronomical Society of the Pacific. 122 (898): 1465–1470. arXiv:1010.1742. Bibcode:2010PASP..122.1465M. doi:10.1086/657658. S2CID 55625415.
^ ^a ^b Bonomo, A. S.; Desidera, S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics. 602: A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID 118923163.
^ "WASP-32". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-09.
^ A star and its orbiting planet now bear names with Singapore connection
^ "Approved names". NameExoworlds. Retrieved 2 January 2020.
^ Brothwell, R. D.; Watson, C. A.; Hébrard, G.; Triaud, A. H. M. J.; Cegla, H. M.; Santerne, A.; Hébrard, E.; Anderson, D. R.; Pollacco, D.; Simpson, E. K.; Bouchy, F.; Brown, D. J. A.; Chew, Y. Gómez Maqueo; Cameron, A. Collier; Armstrong, D. J.; Barros, S. C. C.; Bento, J.; Bochinski, J.; Burwitz, V.; Busuttil, R.; Delrez, L.; Doyle, A. P.; Faedi, F.; Fumel, A.; Gillon, M.; Haswell, C. A.; Hellier, C.; Jehin, E.; Kolb, U.; et al. (2014). "A window on exoplanet dynamical histories: Rossiter–Mc Laughlin observations of WASP-13b and WASP-32b". Monthly Notices of the Royal Astronomical Society. 440 (4): 3392–3401. arXiv:1403.4095. Bibcode:2014MNRAS.440.3392B. doi:10.1093/mnras/stu520. S2CID 118435056.
^ Sun, Lei-Lei; Gu, Sheng-Hong; et al. (January 2015). "Long-term transit timing monitoring and homogenous study of WASP-32". Research in Astronomy and Astrophysics. 15 (1): 117–126. Bibcode:2015RAA....15..117S. doi:10.1088/1674-4527/15/1/011.

[Roman1987-1] Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.

[GaiaDR3-2] ^ ^a ^b ^c ^d ^e ^f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.

[TYC2-3] Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27 – L30. Bibcode:2000A&A...355L..27H.

[Maxted2010-4] ^ ^a ^b ^c ^d ^e ^f Maxted, P. F. L.; Anderson, D. R.; Collier Cameron, A.; Gillon, M.; Hellier, C.; Queloz, D.; Smalley, B.; Triaud, A. H. M. J.; West, R. G.; Enoch, R.; Lister, T. A.; Pepe, F.; Pollacco, D. L.; Ségransan, D.; Skillen, I.; Udry, S. (2010). "WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star". Publications of the Astronomical Society of the Pacific. 122 (898): 1465–1470. arXiv:1010.1742. Bibcode:2010PASP..122.1465M. doi:10.1086/657658. S2CID 55625415.

[Bonomo2017-5] Bonomo, A. S.; Desidera, S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics. 602: A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID 118923163.

[Simbad-6] "WASP-32". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-09.

[7] A star and its orbiting planet now bear names with Singapore connection

[NEW2019-8] "Approved names". NameExoworlds. Retrieved 2 January 2020.

[Brothwell2014-9] Brothwell, R. D.; Watson, C. A.; Hébrard, G.; Triaud, A. H. M. J.; Cegla, H. M.; Santerne, A.; Hébrard, E.; Anderson, D. R.; Pollacco, D.; Simpson, E. K.; Bouchy, F.; Brown, D. J. A.; Chew, Y. Gómez Maqueo; Cameron, A. Collier; Armstrong, D. J.; Barros, S. C. C.; Bento, J.; Bochinski, J.; Burwitz, V.; Busuttil, R.; Delrez, L.; Doyle, A. P.; Faedi, F.; Fumel, A.; Gillon, M.; Haswell, C. A.; Hellier, C.; Jehin, E.; Kolb, U.; et al. (2014). "A window on exoplanet dynamical histories: Rossiter–Mc Laughlin observations of WASP-13b and WASP-32b". Monthly Notices of the Royal Astronomical Society. 440 (4): 3392–3401. arXiv:1403.4095. Bibcode:2014MNRAS.440.3392B. doi:10.1093/mnras/stu520. S2CID 118435056.

[Sun2015-10] Sun, Lei-Lei; Gu, Sheng-Hong; et al. (January 2015). "Long-term transit timing monitoring and homogenous study of WASP-32". Research in Astronomy and Astrophysics. 15 (1): 117–126. Bibcode:2015RAA....15..117S. doi:10.1088/1674-4527/15/1/011.

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WASP-32

Nomenclature

Stellar characteristics

Planetary system

References

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