YSES 1#Planetary system

{{Starbox begin

| name = YSES 1

}}

{{Starbox image

| image = 250px

| caption = TYC 8998-760-1, accompanied by two giant exoplanets, TYC 8998-760-1b and TYC 8998-760-1c}}

{{Starbox observe

| epoch = J2000

| constell = Musca

| ra = {{RA|13|25|12.1263}}

| dec = {{DEC|-64|56|20.689}}

| appmag_v = 11.19{{cite journal

| title=The Tycho-2 catalogue of the 2.5 million brightest stars

| last1=Høg | first1=E. | last2=Fabricius | first2=C.

| last3=Makarov | first3=V. V. | last4=Urban | first4=S.

| last5=Corbin | first5=T. | last6=Wycoff | first6=G.

| last7=Bastian | first7=U. | last8=Schwekendiek | first8=P.

| last9=Wicenec | first9=A. | display-authors=1

| journal=Astronomy and Astrophysics

| volume=355 | pages=L27–L30 | date=2000

| bibcode=2000A&A...355L..27H }}

}}

{{Starbox character

| type = Pre-main sequence

| class = K3IV{{cite simbad | title = TYC 8998-760-1 | access-date=22 July 2020}}

}}

{{Starbox astrometry

| radial_v = 12.84{{cite DR2|5864061893213196032}}

| prop_mo_ra = −40.996

| prop_mo_dec = −17.734

| parallax = 10.6124

| p_error = 0.0116

| parallax_footnote = {{cite Gaia DR3|5864061893213196032}}

| absmag_v =

}}

{{Starbox detail

| mass = 1.00

| temperature = 4,862

| luminosity = 0.508

| radius = 1.01

| gravity = 4.4

| age_myr = 27

}}

{{Starbox catalog

| names = {{odlist |TIC=449888653 |2MASS=J13251211-6456207 }}, YSES 1

}}

{{Starbox reference

|Simbad=TYC+8998-760-1

}}

{{Starbox end

}}

YSES 1, also known as TYC 8998-760-1, is a young star, about {{val|27|u=Myr}} old, located 310 light years away in the constellation of Musca, with a mass {{val|1.00|0.02}} times the Sun.

Planetary system

There are two giant bodies orbiting the star. The European Southern Observatory's Very Large Telescope photographed the two bodies using its SPHERE instrument, producing the first direct image of multiple bodies orbiting a Sun-like star.{{cite web |last1=ESO/Bohn |title=First ever image of a multi-planet system around a Sun-like star (uncropped, with annotations) |url=https://www.eso.org/public/images/eso2011b/ |website=ESO |publisher=European Southern Observatory |accessdate=24 July 2020 |archiveurl=https://web.archive.org/web/20200724161316/https://www.eso.org/public/images/eso2011b/ |archivedate=24 July 2020 |date=22 July 2020}}{{cite news |last=Wall |first=Mike |title=Multiplanet system around sunlike star photographed for 1st time ever - The two newly imaged planets are huge — 14 and 6 times more massive than Jupiter. |url=https://www.space.com/multiplanet-system-sun-like-star-first-photo.html |date=22 July 2020 |work=Space.com |accessdate=22 July 2020 }}

{{OrbitboxPlanet begin

| period_unit = year

| table_ref =[https://exoplanet.eu/catalog/tyc_8998_760_1_b--7303/ Planet TYC 8998-760-1 b at exoplanets.eu]

}}

{{OrbitboxPlanet

| exoplanet = b

| mass = 21.8{{±|3}}

| semimajor = 162

| period = 4,500

| eccentricity = 0 (assumed)

| radius =3.0{{±|0.2|0.7}}

}}

{{OrbitboxPlanet

| exoplanet = c

| mass = 7.2{{±|0.7}}

| semimajor = 320

| period = 5,700

| eccentricity = 0 (assumed)

| radius = 1.1{{±|0.6|0.3}}

}}

= TYC 8998-760-1 b =

TYC 8998-760-1 b is a body which has a mass 21.8 times that of Jupiter (most likely making it a brown dwarf), and a radius of {{Jupiter radius|3}}. It orbits at a distance of {{cvt|162|AU}}, or slightly more than 5 times the Neptune-Sun distance.{{Cite web|title=Astronomers Directly Image Two Giant Exoplanets around Young Sun-Like Star {{!}} Astronomy {{!}} Sci-News.com|url=http://www.sci-news.com/astronomy/directly-imaged-multi-planet-system-young-sun-like-star-08665.html|access-date=2020-07-25|website=Breaking Science News {{!}} Sci-News.com|language=en-US}}{{cite journal |bibcode=2023AJ....165...85W |title=TESS Hunt for Young and Maturing Exof Lower Centaurus Crux with a Transiting Two-planet System |last1=Wood |first1=Mackenna L. |last2=Mann |first2=Andrew W. |last3=Barber |first3=Madyson G. |last4=Bush |first4=Jonathan L. |last5=Kraus |first5=Adam L. |last6=Tofflemire |first6=Benjamin M. |last7=Vanderburg |first7=Andrew |last8=Newton |first8=Elisabeth R. |last9=Feiden |first9=Gregory A. |last10=Zhou |first10=George |last11=Bouma |first11=Luke G. |last12=Quinn |first12=Samuel N. |last13=Armstrong |first13=David J. |last14=Osborn |first14=Ares |last15=Adibekyan |first15=Vardan |last16=Mena |first16=Elisa Delgado |last17=Sousa |first17=Sergio G. |last18=Gagné |first18=Jonathan |last19=Fields |first19=Matthew J. |last20=Milburn |first20=Reilly P. |last21=Thao |first21=Pa Chia |last22=Schmidt |first22=Stephen P. |last23=Gnilka |first23=Crystal L. |last24=Howell |first24=Steve B. |last25=Law |first25=Nicholas M. |last26=Ziegler |first26=Carl |last27=Briceño |first27=César |last28=Ricker |first28=George R. |last29=Vanderspek |first29=Roland |last30=Latham |first30=David W. |journal=The Astronomical Journal |year=2023 |volume=165 |issue=3 |page=85 |doi=10.3847/1538-3881/aca8fc |doi-access=free |arxiv=2212.03266 |s2cid=254366258 |display-authors=1 }} In July 2021, astronomers reported the detection, for the first time, of an isotope in the atmosphere of an exoplanet; more specifically, the isotope Carbon-13 (C¹³) was found in the atmosphere.{{cite news |last=Starr |first=Michelle |title=Isotopes Detected in The Atmosphere of an Exoplanet For The First Time |url=https://www.sciencealert.com/for-the-first-time-isotopes-have-been-detected-in-the-atmosphere-of-an-exoplanet |date=14 July 2021 |work=ScienceAlert |accessdate=14 July 2021 }}{{cite journal |author=Zhang, Yapeng |display-authors=et al. |title=The 13CO-rich atmosphere of a young accreting super-Jupiter |url=https://www.nature.com/articles/s41586-021-03616-x |date=14 July 2021 |journal=Nature |volume=595 |issue=7867 |pages=370–372 |doi=10.1038/s41586-021-03616-x |pmid=34262209 | issn=0028-0836 |accessdate=14 July 2021 |arxiv=2107.06297 |bibcode=2021Natur.595..370Z |s2cid=235829633 }} This was later confirmed with VLT/CRIRES⁺. This spectrum showed that the atmosphere is dominated by water vapor and carbon monoxide. The researchers also detect hydrogen fluoride in the atmosphere. The object is an L-dwarf with a spectral type of L0.{{Cite journal |last1=Zhang |first1=Yapeng |last2=González Picos |first2=Darío |last3=de Regt |first3=Sam |last4=Snellen |first4=Ignas A. G. |last5=Gandhi |first5=Siddharth |last6=Ginski |first6=Christian |last7=Kesseli |first7=Aurora Y. |last8=Landman |first8=Rico |last9=Mollière |first9=Paul |last10=Nasedkin |first10=Evert |last11=Sánchez-López |first11=Alejandro |last12=Stolker |first12=Tomas |last13=Inglis |first13=Julie |last14=Knutson |first14=Heather A. |last15=Mawet |first15=Dimitri |date=2024-12-01 |title=The ESO SupJup Survey. III. Confirmation of 13CO in YSES 1 b and Atmospheric Detection of YSES 1 c with CRIRES+ |journal=The Astronomical Journal |volume=168 |issue=6 |pages=246 |arxiv=2409.16660 |bibcode=2024AJ....168..246Z |doi=10.3847/1538-3881/ad7ea9 |doi-access=free |issn=0004-6256}}

= TYC 8998-760-1 c =

TYC 8998-760-1 c is a body with a mass of {{Jupiter mass|7.2}}, and orbits at {{cvt|320|AU}}, or slightly more than 11 times the Neptune-Sun distance.{{cite journal |author=Bohn, Alexander |s2cid=220686536 |title=Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1 |date=22 July 2020 |journal=The Astrophysical Journal Letters |volume=898 |number=1 |pages=L16 |doi=10.3847/2041-8213/aba27e | arxiv=2007.10991|bibcode=2020ApJ...898L..16B |doi-access=free }} Atmospheric water vapor and carbon monoxide was detected with VLT/CRIRES⁺. The object is an L-dwarf with a spectral type of L7.5. Additionally JWST spectra with NIRSpec and MIRI will be published in the future. The spectrum of TYC 8998-760-1 c does show direct detection of silicate clouds.{{Cite journal |last1=Hoch |first1=Kielan |last2=Perrin |first2=Marshall |last3=Ruffio |first3=Jean-Baptiste |last4=Theissen |first4=Christopher |last5=Barman |first5=Travis |last6=Konopacky |first6=Quinn |last7=Kammerer |first7=Jens |last8=Rickman |first8=Emily |last9=Balmer |first9=William |last10=Pueyo |first10=Laurent |last11=Macintosh |first11=Bruce |last12=Ren |first12=Bin |last13=Morley |first13=Caroline |last14=Gonzales |first14=Eileen |last15=Petrus |first15=Simon |date=2024-04-01 |title=Direct Imaging Spectroscopy of Substellar Companions with JWST |url=https://ui.adsabs.harvard.edu/abs/2024ESS.....562613H/abstract |journal=AASTCS10, Extreme Solar Systems V, Bulletin of the American Astronomical Society |volume=56 |issue=4 |pages=626.13 |bibcode=2024ESS.....562613H}}

References

Category:Planetary systems with two confirmed planets

Category:Musca

Category:K-type main-sequence stars

Category:TIC objects

Category:2MASS objects