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== See also == == See also ==
* ] * ]
A subset of XO light curves are available at the ]. A subset of XO light curves are available at the ].


==Other Ground Transit Surveys== ==Other Ground Transit Surveys==
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{{Reflist|colwidth=30em|refs= {{Reflist|colwidth=30em|refs=


<ref name="Burke2007"> {{cite journal | title=XO-2b: Transiting Hot Jupiter in a Metal-rich Common Proper Motion Binary | url=http://iopscience.iop.org/0004-637X/671/2/2115/fulltext/ | last1=Burke | first1=Christopher J. | last2=McCullough | first2=P. R. | last3=Valenti | first3=Jeff A. | last4=Johns‐krull | first4=Christopher M. | last5=Janes | first5=Kenneth A. | last6=Heasley | first6=J. N. | last7=Summers | first7=F. J. | last8=Stys | first8=J. E. | last9=Bissinger | first9=R. | display-authors=1 | journal=The Astrophysical Journal | year=2007 | volume=671 | issue=2 | pages=2115–2128 | arxiv=0705.0003 | bibcode=2007ApJ...671.2115B | doi=10.1086/523087 }}</ref> <ref name="Burke2007">{{cite journal | title=XO-2b: Transiting Hot Jupiter in a Metal-rich Common Proper Motion Binary | url=http://iopscience.iop.org/0004-637X/671/2/2115/fulltext/ | last1=Burke | first1=Christopher J. | last2=McCullough | first2=P. R. | last3=Valenti | first3=Jeff A. | last4=Johns‐krull | first4=Christopher M. | last5=Janes | first5=Kenneth A. | last6=Heasley | first6=J. N. | last7=Summers | first7=F. J. | last8=Stys | first8=J. E. | last9=Bissinger | first9=R. | display-authors=1 | journal=The Astrophysical Journal | date=2007 | volume=671 | issue=2 | pages=2115–2128 | arxiv=0705.0003 | bibcode=2007ApJ...671.2115B | doi=10.1086/523087 }}</ref>


<ref name="Burke2008"> {{cite journal | title=XO-5b: A Transiting Jupiter-sized Planet with a 4 day Period | url=http://iopscience.iop.org/0004-637X/686/2/1331/fulltext/ | last1=Burke | first1=Christopher J. | last2=McCullough | first2=P. R. | last3=Valenti | first3=Jeff A. | last4=Long | first4=Doug | last5=Johns‐Krull | first5=Christopher M. | last6=Machalek | first6=P. | last7=Janes | first7=Kenneth A. | last8=Taylor | first8=B. | last9=Fleenor | first9=Michael L. | display-authors=1 | journal=The Astrophysical Journal | year=2008 | volume=686 | issue=2 | pages=1331–1340 | arxiv=0805.2399 | bibcode=2008ApJ...686.1331B | doi=10.1086/591497 }}</ref> <ref name="Burke2008">{{cite journal | title=XO-5b: A Transiting Jupiter-sized Planet with a 4 day Period | url=http://iopscience.iop.org/0004-637X/686/2/1331/fulltext/ | last1=Burke | first1=Christopher J. | last2=McCullough | first2=P. R. | last3=Valenti | first3=Jeff A. | last4=Long | first4=Doug | last5=Johns‐Krull | first5=Christopher M. | last6=Machalek | first6=P. | last7=Janes | first7=Kenneth A. | last8=Taylor | first8=B. | last9=Fleenor | first9=Michael L. | display-authors=1 | journal=The Astrophysical Journal | date=2008 | volume=686 | issue=2 | pages=1331–1340 | arxiv=0805.2399 | bibcode=2008ApJ...686.1331B | doi=10.1086/591497 }}</ref>


<ref name="Krull2008"> {{cite journal | title=XO-3b: A Massive Planet in an Eccentric Orbit Transiting an F5V Star | url=http://iopscience.iop.org/0004-637X/677/1/657/fulltext | last1=Johns-Krull | first1=Christopher M. | last2=McCullough | first2=Peter R. | last3=Burke | first3=Christopher J. | last4=Valenti | first4=Jeff A. | last5=Janes | first5=K. A. | last6=Heasley | first6=J. N. | last7=Prato | first7=L. | last8=Bissinger | first8=R. | last9=Fleenor | first9=M. | display-authors=1 | journal=The Astrophysical Journal | year=2008 | volume=677 | issue=1 | pages=657–670 | arxiv=0712.4283 | bibcode=2008ApJ...677..657J | doi=10.1086/528950 }}</ref> <ref name="Krull2008">{{cite journal | title=XO-3b: A Massive Planet in an Eccentric Orbit Transiting an F5V Star | url=http://iopscience.iop.org/0004-637X/677/1/657/fulltext | last1=Johns-Krull | first1=Christopher M. | last2=McCullough | first2=Peter R. | last3=Burke | first3=Christopher J. | last4=Valenti | first4=Jeff A. | last5=Janes | first5=K. A. | last6=Heasley | first6=J. N. | last7=Prato | first7=L. | last8=Bissinger | first8=R. | last9=Fleenor | first9=M. | display-authors=1 | journal=The Astrophysical Journal | date=2008 | volume=677 | issue=1 | pages=657–670 | arxiv=0712.4283 | bibcode=2008ApJ...677..657J | doi=10.1086/528950 }}</ref>


<ref name="McCullough2005"> {{cite journal | title=The XO Project: Searching for Transiting Extrasolar Planet Candidates | url=http://www.jstor.org/stable/10.1086/432024 | last1=McCullough | first1=P. R. | last2=Stys | first2=J. E. | last3=Valenti | first3=J. A. | last4=Fleming | first4=S. W. | last5=Janes | first5=K. A. | last6=Heasley | first6=J. N. | display-authors=1 | journal=Publications of the Astronomical Society of the Pacific | year=2005 | volume=117 | issue=834 | pages=783–795 | arxiv=astro-ph/0505560 | bibcode=2005PASP..117..783M | doi=10.1086/432024 }}</ref> <ref name="McCullough2005">{{cite journal | title=The XO Project: Searching for Transiting Extrasolar Planet Candidates | url=http://www.jstor.org/stable/10.1086/432024 | last1=McCullough | first1=P. R. | last2=Stys | first2=J. E. | last3=Valenti | first3=J. A. | last4=Fleming | first4=S. W. | last5=Janes | first5=K. A. | last6=Heasley | first6=J. N. | display-authors=1 | journal=Publications of the Astronomical Society of the Pacific | date=2005 | volume=117 | issue=834 | pages=783–795 | arxiv=astro-ph/0505560 | bibcode=2005PASP..117..783M | doi=10.1086/432024 }}</ref>


<ref name="McCullough2006"> {{cite journal | title=A Transiting Planet of a Sun-like Star | url=http://iopscience.iop.org/0004-637X/648/2/1228/fulltext/ | last1=McCullough | first1=P. R. | last2=Stys | first2=J. E. | last3=Valenti | first3=Jeff A. | last4=Johns‐krull | first4=C. M. | last5=Janes | first5=K. A. | last6=Heasley | first6=J. N. | last7=Bye | first7=B. A. | last8=Dodd | first8=C. | last9=Fleming | first9=S. W. | display-authors=1 | journal=The Astrophysical Journal | year=2006 | volume=648 | issue=2 | pages=1228–1238 | arxiv=astro-ph/0605414 | bibcode=2006ApJ...648.1228M | doi=10.1086/505651 }}</ref> <ref name="McCullough2006">{{cite journal | title=A Transiting Planet of a Sun-like Star | url=http://iopscience.iop.org/0004-637X/648/2/1228/fulltext/ | last1=McCullough | first1=P. R. | last2=Stys | first2=J. E. | last3=Valenti | first3=Jeff A. | last4=Johns‐krull | first4=C. M. | last5=Janes | first5=K. A. | last6=Heasley | first6=J. N. | last7=Bye | first7=B. A. | last8=Dodd | first8=C. | last9=Fleming | first9=S. W. | display-authors=1 | journal=The Astrophysical Journal | date=2006 | volume=648 | issue=2 | pages=1228–1238 | arxiv=astro-ph/0605414 | bibcode=2006ApJ...648.1228M | doi=10.1086/505651 }}</ref>


<ref name="McCullough2008"> {{cite journal | title=XO-4b: An Extrasolar Planet Transiting an F5V Star | last1=McCullough | first1=P. R. | last2=Burke | first2=Christopher J. | last3=Valenti | first3=Jeff A. | last4=Long | first4=Doug | last5=Johns-Krull | first5=Christopher M. | last6=Machalek | first6=P. | last7=Janes | first7=K. A. | last8=Taylor | first8=B. | last9=Gregorio | first9=J. | display-authors=1 | year=2008 | arxiv=0805.2921 | bibcode=2008arXiv0805.2921M }}</ref> <ref name="McCullough2008">{{cite journal | title=XO-4b: An Extrasolar Planet Transiting an F5V Star | last1=McCullough | first1=P. R. | last2=Burke | first2=Christopher J. | last3=Valenti | first3=Jeff A. | last4=Long | first4=Doug | last5=Johns-Krull | first5=Christopher M. | last6=Machalek | first6=P. | last7=Janes | first7=K. A. | last8=Taylor | first8=B. | last9=Gregorio | first9=J. | display-authors=1 | date=2008 | arxiv=0805.2921 | bibcode=2008arXiv0805.2921M }}</ref>


}} }}

== External links == == External links ==
* *
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Revision as of 19:09, 3 June 2015

The XO Telescope is a telescope located on the 3,054 m summit of Haleakala on Maui, Hawaii, formed by a pair of 200 mm telephoto lenses. It is used by the XO Project to detect extrasolar planets using the transit method. It is similar to the TrES survey telescope. The construction of the one-of-a-kind telescope cost $60,000 for the hardware, and much more than that for the associated software.

Planets discovered

The XO telescope has discovered five objects so far, four are hot Jupiter planets and one, XO-3b, is probably a brown dwarf. All were discovered using the transit method.

Light green rows indicate that the planet orbits one of the stars in a binary star system.

Star Constellation Right
ascension 		Declination App.
mag. 		Distance (ly) Spectral
type 		Planet Mass
(MJ) 		Radius
(RJ) 		Orbital
period
(d) 		Semimajor
axis
(AU) 		Orbital
eccentricity 		Inclination
(°) 		Discovery
year
XO-1 Corona Borealis 16 02 12 +28° 10′ 11″ 11.319 600 G1V XO-1b 0.9 1.3 3.941534 0.0488 0 87.7 2006
XO-2N Lynx 07 48 07 +50° 13′ 33″ 11.25 486 K0V XO-2Nb 0.57 0.973 2.615838 0.0369 0 88.58 2007
XO-3 Camelopardalis 04 21 53 +57° 49′ 01″ 9.91 850 F5V XO-3b 11.79 1.217 3.1915239 0.0454 0.26 84.2 2007
XO-4 Lynx 07 21 33.1657 +58° 16′ 05.005″ 10.78 956 F5V XO-4b 1.72 1.34 4.12502 0.0555 0.0024 88.7 2008
XO-5 Lynx 07 46 51.959 +39° 05′ 40.47″ 12.1 881 G8V XO-5b 1.15 1.15 4.187732 0.0508 0.0029 86.8 2008

See also

A subset of XO light curves are available at the NASA Exoplanet Archive.

Other Ground Transit Surveys

The Next-Generation Transit Survey (NGTS) at Paranal Observatory.

References

  1. McCullough, P. R.; et al. (2005). "The XO Project: Searching for Transiting Extrasolar Planet Candidates". Publications of the Astronomical Society of the Pacific. 117 (834): 783–795. arXiv:astro-ph/0505560. Bibcode:2005PASP..117..783M. doi:10.1086/432024.
  2. McCullough, P. R.; et al. (2006). "A Transiting Planet of a Sun-like Star". The Astrophysical Journal. 648 (2): 1228–1238. arXiv:astro-ph/0605414. Bibcode:2006ApJ...648.1228M. doi:10.1086/505651.
  3. Burke, Christopher J.; et al. (2007). "XO-2b: Transiting Hot Jupiter in a Metal-rich Common Proper Motion Binary". The Astrophysical Journal. 671 (2): 2115–2128. arXiv:0705.0003. Bibcode:2007ApJ...671.2115B. doi:10.1086/523087.
  4. Johns-Krull, Christopher M.; et al. (2008). "XO-3b: A Massive Planet in an Eccentric Orbit Transiting an F5V Star". The Astrophysical Journal. 677 (1): 657–670. arXiv:0712.4283. Bibcode:2008ApJ...677..657J. doi:10.1086/528950.
  5. McCullough, P. R.; et al. (2008). "XO-4b: An Extrasolar Planet Transiting an F5V Star". arXiv:0805.2921. Bibcode:2008arXiv0805.2921M. {{cite journal}}: Cite journal requires |journal= (help)
  6. Burke, Christopher J.; et al. (2008). "XO-5b: A Transiting Jupiter-sized Planet with a 4 day Period". The Astrophysical Journal. 686 (2): 1331–1340. arXiv:0805.2399. Bibcode:2008ApJ...686.1331B. doi:10.1086/591497.
  7. "New Exoplanet-hunting Telescopes on Paranal". www.eso.org. European Southern Observatory. Retrieved 14 January 2015.

External links

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