HAT-P-41#Planetary system

{{Starbox observe

| epoch = J2000

| constell = Aquila

| ra = {{RA|19|49|17.4398}}

| dec = {{DEC|04|40|20.786}}

| appmag_v = 11.36{{cite journal |bibcode=2000A&A...355L..27H |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. |journal=Astronomy and Astrophysics |date=2000 |volume=355 }}

}}

{{Starbox character

| type = main sequence

| component1 = HAT-P-41

| class = F9V

| component2 = HAT-P-41B

|class2=K9-M0

}}

{{Starbox astrometry

| radial_v = 33.2{{±|0.5}}{{cite Gaia DR3|4290415081653653632}}

| prop_mo_ra = −3.177

| prop_mo_dec = −6.570

| parallax = 2.8477

| p_error = 0.0176

| parallax_footnote =

}}

{{Starbox relpos

| reference = {{citation |arxiv=1507.01938 |doi=10.1051/0004-6361/201424091 |title=A Lucky Imaging search for stellar companions to transiting planet host stars |year=2015 |last1=Wöllert |first1=Maria |last2=Brandner |first2=Wolfgang |last3=Bergfors |first3=Carolina |last4=Henning |first4=Thomas |journal=Astronomy & Astrophysics |volume=575 |pages=A23 |bibcode=2015A&A...575A..23W |s2cid=119250579 }}

| epoch = 2013

| primary = HAT-P-41

| component = HAT-P-41B

| angdistsec = 3.619{{±|0.005}}

| angdistmas =

| angdistref =

| posang = 184.1{{±|0.2}}

| posangref =

| projsep = 1270

| projsepref =

}}

{{Starbox detail

| source ={{citation |arxiv=1704.00373 |doi=10.1051/0004-6361/201629882 |title=The GAPS Programme with HARPS-N at TNG |year=2017 |last1=Bonomo |first1=A. S. |last2=Desidera |first2=S. |last3=Benatti |first3=S. |last4=Borsa |first4=F. |last5=Crespi |first5=S. |last6=Damasso |first6=M. |last7=Lanza |first7=A. F. |last8=Sozzetti |first8=A. |last9=Lodato |first9=G. |last10=Marzari |first10=F. |last11=Boccato |first11=C. |last12=Claudi |first12=R. U. |last13=Cosentino |first13=R. |last14=Covino |first14=E. |last15=Gratton |first15=R. |last16=Maggio |first16=A. |last17=Micela |first17=G. |last18=Molinari |first18=E. |last19=Pagano |first19=I. |last20=Piotto |first20=G. |last21=Poretti |first21=E. |last22=Smareglia |first22=R. |last23=Affer |first23=L. |last24=Biazzo |first24=K. |last25=Bignamini |first25=A. |last26=Esposito |first26=M. |last27=Giacobbe |first27=P. |last28=Hébrard |first28=G. |last29=Malavolta |first29=L. |last30=Maldonado |first30=J. |journal=Astronomy & Astrophysics |volume=602 |pages=A107 |bibcode=2017A&A...602A.107B |s2cid=118923163 |display-authors=29 }}

| mass = 1.418{{±|0.047}}

| radius = 1.683{{±|0.058|0.036}}

| temperature = 6390{{±|100}}

| luminosity =

| gravity =

| metal_fe = 0.21{{±|0.10}}

| rotation =

| rotational_velocity = 19.60{{±|0.50}}

| age_gyr = 2.2{{±|0.4}}

}}

{{Starbox catalog

| names = {{odlist|2MASS = J19491743+0440207|GSC=00488-02442|TYC=488-2442-1}}{{cite simbad|title=HAT-P-41|accessdate=2021-01-21}}

| component1 = HAT-P-41

| names1 = Gaia DR2 4290415081653653632, Gaia DR3 4290415081653653632

| component2 = HAT-P-41B

| names2 = Gaia DR2 4290415081653653376, Gaia DR3 4290415081653653376

}}

{{Starbox reference

| Simbad = HAT-P+41

| Simbad2 = HAT-P-41b|sn2=Hat-P-41b

}}

HAT-P-41 is a binary star system. Its primary is a F-type main-sequence star. Its surface temperature is 6390{{±|100}} K. compared to the Sun, HAT-P-41 is enriched in heavy elements, with a metallicity Fe/H index of 0.21{{±|0.10}}, but is much younger at an age of 2.2{{±|0.4}} billion years.

The candidate stellar companion was detected simultaneously with the planet discovery in 2012. A multiplicity survey in 2015 did confirm a dim stellar companion of later-K to early-M spectral class, with the probability of being a background star of 14%. By 2020, it was concluded the candidate companion star is probably gravitationally bound.{{citation |arxiv=2001.08224 |doi=10.1051/0004-6361/201937127 |title=A multiplicity study of transiting exoplanet host stars |year=2020 |last1=Bohn |first1=A. J. |last2=Southworth |first2=J. |last3=Ginski |first3=C. |last4=Kenworthy |first4=M. A. |last5=Maxted |first5=P. F. L. |last6=Evans |first6=D. F. |journal=Astronomy & Astrophysics |volume=635 |pages=A73 |bibcode=2020A&A...635A..73B |s2cid=210861118 }}

Planetary system

In 2012, one planet, named HAT-P-41b, was discovered on a tight, circular orbit around the primary star.{{citation|arxiv=1207.3344|title=HAT-P-39b–HAT-P-41b: Three Highly Inflated Transiting Hot Jupiters|year=2012|bibcode=2012AJ....144..139H|last1=Hartman|first1=J. D.|display-authors=etal|journal=The Astronomical Journal|volume=144|issue=5|page=139|doi=10.1088/0004-6256/144/5/139|s2cid=118457589}}

The planetary orbit is mildly misaligned with the equatorial plane of the star, misalignment angle equal to −22.1{{±|0.8|6.0}} degrees.{{citation |arxiv=1708.01291 |doi=10.3847/1538-3881/aa8462 |title=Spin–Orbit Misalignments of Three Jovian Planets via Doppler Tomography |year=2017 |last1=Johnson |first1=Marshall C. |last2=Cochran |first2=William D. |last3=Addison |first3=Brett C. |last4=Tinney |first4=Chris G. |last5=Wright |first5=Duncan J. |journal=The Astronomical Journal |volume=154 |issue=4 |page=137 |bibcode=2017AJ....154..137J |s2cid=119487498 |doi-access=free }}

The transmission spectrum of HAT-P-41b taken in 2020 has resulted in contradictory interpretations. One team has concluded the planetary atmosphere is metal-rich, with clear water signatures and absorption bands from sodium, aluminum, titanium and vanadium compounds.{{cite journal|arxiv=2010.09659|title=The Hubble PanCET Program: A Metal-rich Atmosphere for the Inflated Hot Jupiter HAT-P-41b|year=2021|last1=Sheppard|first1=Kyle B.|journal=The Astronomical Journal|volume=161|issue=2|page=51|doi=10.3847/1538-3881/abc8f4|bibcode=2021AJ....161...51S|s2cid=224710738|display-authors=etal |doi-access=free }} Another team has interpreted the results as arising from a dense hydrogen atmosphere without detectable heavy elements, but with significant ionization.{{citation |arxiv=2010.08551|title=Into the UV: The Atmosphere of the Hot Jupiter HAT-P-41b Revealed|year=2020|doi=10.3847/2041-8213/abb77f|last1=Lewis|first1=N. K.|display-authors=etal|journal=The Astrophysical Journal|volume=902|issue=1|pages=L19|bibcode=2020ApJ...902L..19L|s2cid=224706001 |doi-access=free }} The atmosphere also appears to contain significant cloud and hazes.{{citation |arxiv=2003.00536 |doi=10.3847/1538-3881/ab7b78 |title=Into the UV: A Precise Transmission Spectrum of HAT-P-41b Using Hubble's WFC3/UVIS G280 Grism |year=2020 |last1=Wakeford |first1=H. R. |last2=Sing |first2=D. K. |last3=Stevenson |first3=K. B. |last4=Lewis |first4=N. K. |last5=Pirzkal |first5=N. |last6=Wilson |first6=T. J. |last7=Goyal |first7=J. |last8=Kataria |first8=T. |last9=Mikal-Evans |first9=T. |last10=Nikolov |first10=N. |last11=Spake |first11=J. |journal=The Astronomical Journal |volume=159 |issue=5 |page=204 |bibcode=2020AJ....159..204W |s2cid=211677682 |doi-access=free }} Neither heavy element compounds nor H⁻ ion opacity were found in 2022 study.{{citation|arxiv=2202.12314|year=2022|title=The Hubble PanCET Program: Emission Spectrum of Hot Jupiter HAT-P-41b|doi=10.3847/1538-3881/ac58fc |last1=Fu |first1=Guangwei |last2=Sing |first2=David K. |last3=Deming |first3=Drake |last4=Sheppard |first4=Kyle |last5=Wakeford |first5=H. R. |last6=Mikal-Evans |first6=Thomas |last7=Alam |first7=Munazza K. |last8=Dos Santos |first8=Leonardo A. |last9=López-Morales |first9=Mercedes |last10=Lothringer |first10=Joshua D. |journal=The Astronomical Journal |volume=163 |issue=4 |page=190 |bibcode=2022AJ....163..190F |s2cid=247154998 |doi-access=free }}

The planetary equilibrium temperature is within 1700-1950 K, and the dayside temperature has been measured at 1622{{±|125}} K.{{citation |arxiv=1901.07040 |doi=10.3847/1538-3881/ab6cff |title=Statistical Characterization of Hot Jupiter Atmospheres Using Spitzer's Secondary Eclipses |year=2020 |last1=Garhart |first1=Emily |last2=Deming |first2=Drake |last3=Mandell |first3=Avi |last4=Knutson |first4=Heather A. |last5=Wallack |first5=Nicole |last6=Burrows |first6=Adam |last7=Fortney |first7=Jonathan J. |last8=Hood |first8=Callie |last9=Seay |first9=Christopher |last10=Sing |first10=David K. |last11=Benneke |first11=Björn |last12=Fraine |first12=Jonathan D. |last13=Kataria |first13=Tiffany |last14=Lewis |first14=Nikole |last15=Madhusudhan |first15=Nikku |last16=McCullough |first16=Peter |last17=Stevenson |first17=Kevin B. |last18=Wakeford |first18=Hannah |journal=The Astronomical Journal |volume=159 |issue=4 |page=137 |bibcode=2020AJ....159..137G |s2cid=119209434 |doi-access=free }}

{{OrbitboxPlanet begin

| name = HAT-P-41

| table_ref =

}}

{{OrbitboxPlanet

| exoplanet = b

| mass = 0.795{{±|0.056|0.091}}

| radius = 1.685{{±|0.076|0.051}}

| semimajor = 0.04258{{±|0.00047|0.00048}}

| period = 2.694047{{±|0.000004}}

| eccentricity = <0.22

| inclination = 87.7{{±|1.0}}