HAT-P-13c

{{Infobox planet

| name = HAT-P-13c

| discoverer = Bakos et al.

| discovery_site = {{flag|United States}}

| discovered = 21 July 2009

| discovery_method = Radial velocity

| apsis = astron

| aphelion = {{convert|2.006|AU|km|abbr=on}}

| perihelion = {{convert|0.366|AU|km|abbr=on}}

| semimajor = 1.186{{±|0.018|0.033}} AU

| eccentricity = 0.691 ± 0.018

| period = 428.5 ± 3 d
1.173 ± 0.008 y

| time_periastron = 2454890.05 ± 0.48

| arg_peri = 176.7 ± 0.5

| star = HAT-P-13

}}

HAT-P-13c is a substellar object orbiting the star HAT-P-13 located 698 light years away from Earth in the constellation of Ursa Major. A search for transits was negative, however only 72% of the possible transit configurations could be ruled out. With a mass at least 15.2 times that of Jupiter, it may be a massive planet or a small brown dwarf. The gravitational effect of this object on the inner transiting planet HAT-P-13b may allow a precise determination of the inner planet's internal structure.ATYGIN K., BODENHEIMER P. & LAUGHLIN G., 2009 "Determination of the Interior Structure of Transiting Planets in Multiple-Planet Systems" ApJ. Letters 2009 [https://arxiv.org/abs/0907.5019 preprint]

References

{{Reflist|refs=

{{cite journal | title=HAT-P-13b,c: A Transiting Hot Jupiter with a Massive Outer Companion on an Eccentric Orbit | last1=Bakos | first1=G. Á. | last2=Howard | first2=A. W. | last3=Noyes | first3=R. W. | last4=Hartman | first4=J. | last5=Torres | first5=G. | last6=Kovács | first6=Géza | last7=Fischer | first7=D. A. | last8=Latham | first8=D. W. | last9=Johnson | first9=J. A. | last10=Marcy | first10=G. W. | last11=Sasselov | first11=D. D. | last12=Stefanik | first12=R. P. | last13=Sipőcz | first13=B. | last14=Kovács | first14=Gábor | last15=Esquerdo | first15=G. A. | last16=Pál | first16=A. | last17=Lázár | first17=J. | last18=Papp | first18=I. | last19=Sári | first19=P. | display-authors=1 | journal=The Astrophysical Journal | volume=707 | issue=1 | pages=446–456 | date=2009 | arxiv=0907.3525 | bibcode=2009ApJ...707..446B | doi=10.1088/0004-637X/707/1/446 | s2cid=7591731 }}

{{cite journal | title=A multi-site campaign to detect the transit of the second planet in HAT-P-13 | url=http://www.aanda.org/articles/aa/full_html/2010/15/aa15172-10/aa15172-10.html | last1=Szabó | first1=Gy. M. | last2=Kiss | first2=L. L. | last3=Benkő | first3=J. M. | last4=Mező | first4=Gy. | last5=Nusp | first5=J. | last6=Regály | first6=Zs. | last7=Sárneczky | first7=K. | last8=Simon | first8=A. E. | last9=Leto | first9=G. | last10=Zanmar Sanchez | first10=R. | last11=Ngeow | first11=C.-C. | last12=Kővári | first12=Zs. | last13=Szabó | first13=R. | display-authors=1 | journal=Astronomy and Astrophysics | volume=523 | at=A84 | date=2010 | arxiv=1009.3598 | bibcode=2010A&A...523A..84S | doi=10.1051/0004-6361/201015172 | s2cid=118739793 }}

}}

External links

[https://web.archive.org/web/20090825235723/http://planetquest.jpl.nasa.gov/atlas/atlas_search.cfm?&Sort=DiscDate&SortDir=DESC JPL PlanetQuest] search

Category:Exoplanets discovered in 2009

Category:Brown dwarfs

Category:Giant planets

Category:Hot Jupiters

Category:Ursa Major

Category:Exoplanets detected by radial velocity