Magellan Planet Search Program
The Magellan Planet Search Program is a ground based extrasolar planet search device which began gathering data in December 2002. It utilizes the MIKE echelle spectrograph mounted on the Magellan Telescopes which are twin, 6.5m Magellan II (Clay) telescope located within the Las Campanas Observatory in Chile.[1][2][3]
Specifications
The MIKE echelle spectograph works at a resolution of R ~ 50,000 when gathering spectra that covers a wavelength 3900 to 6200 Å. MIKE is divided into a red and blue CCD. The blue CCD captures stellar activities while the red CCD falls into a temperature controlled Iodine absorption cell is mounted in front of the MIKE entrance slit, this imprints iodine spectrum referencing directly to starlight.[1]
Observations
The program is surveying approximately 400 stars which ranges from F7 to M5 type stars. The stars included in the program has been chosen to minimize overlapping surveys with both Anglo-Australian Planet Search (AAT) and the KECK programs. Any star with larger jitters have been removed from the program specifically those that has 2 magnitudes above the main sequence when basing it from Hipparcos distances. The Magellan Planet Search Program[1] has discovered 5 eccentric Jupiter-mass planets. Announcement was made in January 2010, regarding the discovery of the 5 long period extra-solar planets from Magellan velocity surveys. They were found orbiting G and K type dwarfs which are jovian-mass planets in both long-period and eccentric orbits.[3][4][5]
Extrasolar planets discovered
As of January 2010 the program has discovered 9 extra-solar planets and astronomical objects including the 5 eccentric Jupiter-mass planets.
References
- ^ a b c
Pamela Arriagada; Paul Butler; Dante Minniti; Mercedes Lopez-Morales; Shectman; Adams; Boss; Chambers (2010). "Five Long-period Extrasolar Planets in Eccentric orbits from the
Magellan Planet Search Program". arXiv:1001.4093 [astro-ph.EP].
{{cite arXiv}}: line feed character in|title=at position 65 (help) - ^ a b c d e
Dante Minniti; Paul Butler; Mercedes Lopez-Morales; Shectman; Adams; Pamela Arriagada; Boss; Chambers (2008). "Low Mass Companions for Five Solar-Type Stars from the Magellan Planet
Search Program". Astrophys.J.693:1424-1430,2009. 693 (2): 1424–1430. arXiv:0810.5348. doi:10.1088/0004-637X/693/2/1424.
{{cite journal}}: line feed character in|title=at position 71 (help) - ^ a b c d e f g Arriagada, P. (2010). "Five Long-period Extrasolar Planets in Eccentric orbits from the Magellan Planet Search Program". arXiv:1001.4093 [astro-ph.EP].
{{cite arXiv}}: Unknown parameter|coauthors=ignored (|author=suggested) (help); Unknown parameter|url=ignored (help) - ^ López-Morales, Mercedes; Butler, R. Paul; Fischer, Debra A.; Minniti, Dante; Shectman, Stephen A.; Takeda, Genya; Adams, Fred C.; Wright, Jason T.; Arriagada, Pamela (2008). "TWO JUPITER-MASS PLANETS ORBITING HD 154672 AND HD 205739". The Astronomical Journal. 136 (5): 1901. doi:10.1088/0004-6256/136/5/1901.
- ^ Minniti, Dante; Butler, R. Paul; López-Morales, Mercedes; Shectman, Stephen A.; Adams, Fred C.; Arriagada, Pamela; Boss, Alan P.; Chambers, John E. (2009). "LOW-MASS COMPANIONS FOR FIVE SOLAR-TYPE STARS FROM THE MAGELLAN PLANET SEARCH PROGRAM". The Astrophysical Journal. 693 (2): 1424. doi:10.1088/0004-637X/693/2/1424.
