# Observing time

- Chandra/ACIS-S, 2016, PI, 80 ks, “The youngest exoplanet or a stellar feature?”
- Chandra/ACIS-S, 2015, PI, 40 ks, “Creating a gold-standard sample of ages and activity for old cool stars”
- Chandra/HRC-I, 2015, PI, 35 ks, “Is Fomalhaut b an exoplanet or a neutron star?”
- HST/WFC3/UVIS, 2015, PI, 1 orbit, “The magnetic activity puzzle of the super-earth host star KOI-314”
- MMT/MMTCam, 2015, PI, 1 h, “The MMT as an exoplanet machine: a feasibility study for transit timing variations”
- Swift/XRT, 2015, Co-I (PI Williams), 11 ks, “HD 189733 flares”
- VLA, 2015, Co-I (PI Williams), 8 h, “HD 189733 flares”
- XMM-Newton/EPIC, 2014, PI, 74 ks, “Creating a gold-standard sample of ages and activity for old cool stars”
- Chandra/ACIS-S (DDT), 2014, PI, 10 ks, “X-ray driven evaporation of exoplanet atmospheres: discovery of a uniquely suited test system”
- FLWO/FAST, 2014, PI, 4 nights, “An age-activity relation for M dwarfs older than 1 Gyr using white dwarf/M dwarf wide binaries”
- MMT/MMTCam, 2014, PI, 1 h, “Finding new exoplanets with KOINet: ground-based multi-site observations of Kepler targets with Transit Timing Variations”
- Swift/XRT, 2014, Co-I (PI Gallo), 39 ks, “Atmospheric heating in an irradiated transiting super-earth and super-neptune”
- NOT/FIES, 2014, Co-I (PI Albrecht), 3 h, “The magnetic activity puzzle of the super-earth host star KOI-314”
- Chandra/ACIS-S, 2013, PI, 141 ks, “Do exoplanets spin up their host stars?”
- XMM-Newton/EPIC, 2013, PI, 63 ks
- FLWO/TRES, 2013, PI, 2.5 nights
- XMM-Newton/EPIC, 2013, Co-I (PI Williams), 86 ks
- Chandra/ACIS-S, 2013, Co-I (PI Günther), 10 ks
- HST/STIS, 2013, Co-I (PI Salz), 7 orbits
- Calar Alto/TWIN, 2013, Co-I (PI von Essen), 3 nights
- Spitzer/IRAC, 2013, Co-I (PI Günther), 2.7 h
- XMM-Newton/EPIC, 2012, PI, 26 ks
- McDonald Obs./SES, 2012, PI, 14 nights
- XMM-Newton/EPIC, 2012, Co-I (PI Schmitt), 382.5 ks
- VLT/UVES, 2012, Co-I (PI Wolter), 4 h
- XMM-Newton/EPIC, 2011, PI, 32 ks, “tau Boo’s magnetic polarity switch in X-rays – continued monitoring”
- Chandra/ACIS-S, 2011, PI, 120 ks
- Chandra/ACIS-I, 2011, PI, 10 ks
- Swift/XRT, 2011, PI, 40 ks
- FLWO/TRES, 2011, Co-I (PI Günther), 7 h
- XMM-Newton/EPIC, 2010, PI, 32 ks, “tau Boo’s magnetic polarity switch in X-rays”
- Chandra/ACIS-S, 2010, PI, 60 ks
- Calar Alto/FOCES, 2009, PI, 7.5 h
- Chandra/ACIS-S (DDT), 2008, Co-I (PI Schmitt), 10 ks