News from the McDonald Observatory Planet Search

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News from the McDonald Observatory Planet
Search Michael Endl Alm Seminar
TLS Tautenburg, Sep.9th 2009
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• 2.7 m telescope / Tull spectrograph
• Kepler Follow Up
• search for Jupiter analogs
• Hobby-Eberly Telescope / HRS
• Kepler Follow Up
• FGK stars (1 new planet)?
• M dwarfs (1 new planet / 1 planet shrank)?
• Keck 1 / HIRES
• CoRoT Follow Up (RM effect)?

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• 2.7 m telescope / Tull spectrograph
• Kepler Follow Up
• search for Jupiter analogs

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HD 34445 b a long-periodic gas giant discovered
independently by California team (KECK/HIRES) and
HET/HRS
G0 V 7.31 Fe/H 0.14 - 0.04 M 1.07 M
Sun Teff 5836 - 44 K log g 4.21 - 0.08 v
sin i 2.7 - 0.5 km/s
Howard et al. 2009, submitted
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GJ 179 b a long-periodic gas giant orbiting a
faint M dwarf discovered by California team
(KECK/HIRES) and with some help from HET/HRS
M3.5 V 11.96 Fe/H 0.30 - 0.10 M 0.36 -
0.03 M Sun Teff 3370 - 100 K log g 4.83 v
sin i lt 1.5 km/s d 12.5 pc
Howard et al. 2009, submitted
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The Incredibly Shrinking Planet around GJ 176
Endl et al. 2008
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The Incredibly Shrinking Planet around GJ 176
Endl et al. 2008
HARPS Forveille et al. 2009 KECK/HIRES Butler
et al. 2009
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The Incredibly Shrinking Planet around GJ 176
Endl et al. 2008
HARPS! Forveille et al. 2009
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The Incredibly Shrinking Planet around GJ 176
M3.5 V 11.96 Fe/H 0.30 - 0.10 M 0.36 -
0.03 M Sun Teff 3370 - 100 K log g 4.83 v
sin i lt 1.5 km/s d 12.5 pc
Howard et al. 2009, submitted
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2009 Jan (Bill Stuart) HIRES observations of
Rossiter-McLaughlin (RM) effect of CoRoT-1
RM anomaly
HARPS data F. Bouchy Model fit F. Pont
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2009 Jan (Bill Stuart) HIRES observations of
Rossiter-McLaughlin (RM) effect of CoRoT-1
Lambda 80 deg!
HARPS data F. Bouchy Model fit F. Pont
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2009 Jun 30 / Jul 01 (Michael Phillip) HIRES
radial velocity observations of 8 new candidates
All data reduced and communicated to the CoRoT
Follow-up group Example
RM anomaly
red points HIRES data dashed line tentative
RV orbit This star is a rapid rotator, which
explains the large error bars and the large
amplitude of the observed RM anomaly Again, the
shape of the RM effect indicates orbital
misalignment!
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2009 Jun 30 / Jul 01 (Michael Phillip) HIRES
radial velocity observations of 8 new candidates
All data reduced and communicated to the CoRoT
Follow-up group
Transit center??
red points HIRES data dashed line tentative
RV orbit This star is a rapid rotator, which
explains the large error bars and the large
amplitude of the observed RM anomaly Again, the
shape of the RM effect indicates orbital
misalignment!
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2009 Jun 30 / Jul 01 (Michael Phillip) HIRES
radial velocity observations of 8 new candidates
All data reduced and communicated to the CoRoT
Follow-up group
P 0.957 d , transit depth 0.29