Michael Hippke
About Me
I am a gentleman scientist doing astrophysics research in my free time.
I am affiliated with the Sonneberg observatory.
A list of my publications can be found at ADS.
Research
Searching for interstellar quantum communications. Hippke, M. 2021, Astronomical Journal (ADS, PDF, Youtube presentation, heise article (in German))
Interstellar communication network (series of papers)
I. Overview and assumptions. Hippke, M. 2019, Astronomical Journal (ADS, PDF)
II. Deep space nodes with gravitational lensing. Hippke, M. 2020, submitted (ADS, PDF)
III. Locating deep space nodes. Hippke, M. 2021 (ADS, PDF)
Interstellar communication (series of papers)
I. Maximized data rate for lightweight space-probes. Hippke, M. 2018, International Journal of Astrobiology ( ADS, PDF)
II. Application to the solar gravitational lens. Hippke, M. 2017, Acta Astronautica (ADS, PDF)
III. Optimal frequency to maximize data rate. Hippke, M., Forgan, D. H. 2017 (ADS, PDF)
IV. Benchmarking information carriers. Hippke, M. 2017, Acta Astronautica (ADS, PDF)
V. Introduction to photon information efficiency (in bits per photon). Hippke, M. 2017 (ADS, PDF)
VI. Searching X-ray spectra for narrowband communication. Hippke, M., Forgan, D. H. 2017 (ADS, PDF)
VII. Benchmarking inscribed matter probes. Hippke, M., Leyland, P., Learned J. G. 2017, Acta Astronautica (ADS, PDF)
VIII. Hard limits on the number of bits per photon. Hippke, M., 2018 (ADS, PDF)
IX. Message decontamination is impossible. Hippke, M., Learned, J. G. 2018 (ADS, PDF)
X. The colors of optical SETI. Hippke, M. 2018, Journal of Astrophysics and Astronomy (ADS, PDF)
XI. Short pulse duration limits of optical SETI. Hippke, M., 2018, Journal of Astrophysics and Astronomy (ADS, PDF)
Periodic Spectral Modulations Arise from Non-random Spacing of Spectral Absorption Lines. Hippke, M. 2018 PASP (ADS, PDF)
Searching for a message in the angular power spectrum of the cosmic microwave background. Hippke, M. 2020 (ADS, PDF)
Interstellar travel
Low-cost precursor of an interstellar mission. Heller et al. 2020, Astronomy & Astrophysics (ADS, PDF)
Photogravimagnetic assists of light sails. Forgan, D., Heller, R., Hippke, M. 2018, Monthly Notes of the Royal Astronomical Society (ADS, PDF)
Optimized trajectories to the nearest stars using lightweight high-velocity photon sails. Heller, R., Hippke, M., Kervella, P. 2017, Astronomical Journal (ADS, PDF)
Deceleration of high-velocity interstellar photon sails into bound orbits at alpha Centauri. Heller, R., Hippke, M. 2017, Astrophysical Journal Letters (ADS, PDF)
Spaceflight from Super-Earths is difficult. Hippke, M. 2018, International Journal of Astrobiology (ADS, PDF)
Super-Earths in need for Extremely Big Rockets. Hippke, M. 2018 (ADS, PDF)
Exoplanets
Transit Least Squares (TLS): Optimized transit detection algorithm to search for periodic transits of small planets. Hippke, M., Heller, R. 2019. Astronomy & Astrophysics (ADS, PDF)
Transit least-squares survey. I. Discovery and validation of an Earth-sized planet in the four-planet system K2-32 near the 1:2:5:7 resonance. Heller et al. 2019, Astronomy & Astrophysics (ADS, PDF)
Transit least-squares survey. II. Discovery and validation of 17 new sub- to super-Earth-sized planets in multi-planet systems from K2. Heller et al. 2019, Astronomy & Astrophysics (ADS, PDF)
Transit least-squares survey. III. A 1.9 R-Earth transit candidate in the habitable zone of Kepler-160 and a nontransiting planet characterized by transit-timing variations. Heller et al. 2020, Astronomy & Astrophysics (ADS, PDF)
Wotan: Comprehensive Time-series Detrending in Python . Hippke et al. 2019, Astronomical Journal (ADS, PDF)
Boyajian's Star
The year-long flux variations in Boyajian's star are asymmetric or aperiodic. Hippke, M., Angerhausen. A. 2017, Astrophysical Journal Letters (ADS, PDF)
Sonneberg plate photometry for Boyajian's Star in two passbands. Hippke, M. et al. 2017, Astrophysical Journal (ADS, PDF)
A statistical analysis of the accuracy of the digitized magnitudes of photometric plates on the time scale of decades with an application to the century-long light curve of KIC 8462852. Hippke, M. et al. 2016, Astrophysical Journal (ADS, PDF)
Exomoons and Exotrojans
The PDS 110 observing campaign - photometric and spectroscopic observations reveal eclipses are aperiodic. Osborn et al. 2019, Monthly Notices of the Royal Astronomical Society (ADS, PDF)
Revisiting the exomoon candidate signal around Kepler-1625b. Rodenbeck et al. 2018, Astronomy & Astrophysics (ADS, PDF)
Predictable patterns in planetary transit timing variations and transit duration variations due to exomoons. Heller, R., Hippke, M., Placek, B., Angerhausen, D. 2016, Astronomy & Astrophysics (ADS, PDF)
Modeling the Orbital Sampling Effect of Extrasolar Moons. Heller, R., Hippke, M., Jackson, B. 2016, Astrophysical Journal (ADS, PDF)
A Statistical Search for a Population of Exo-Trojans in the Kepler Data Set. Hippke, M., Angerhausen, D. 2015, Astrophysical Journal (ADS, PDF)
Photometry's Bright Future: Detecting Solar System Analogs with Future Space Telescopes. Hippke, M., Angerhausen, D. 2015, Astrophysical Journal (ADS, PDF)
On the Detection of Exomoons: A Search in Kepler Data for the Orbital Sampling Effect and the Scatter Peak. Hippke, M. 2015, Astrophysical Journal (ADS, PDF)
Variable stars
The spectral Petersen diagram as a new tool to map pulsation modes in variable stars. Hippke, M. 2019, Monthly Notes of the Royal Astronomical Society (ADS, PDF)
Dippers and Dusty Disk Edges: New Diagnostics and Comparison to Model Predictions. Bodman, E. et al. 2017, Monthly Notes of the Royal Astronomical Society (ADS, PDF)
Simple nonlinear models suggest variable star universality. Lindner, John F. et al. 2016, Physica D (ADS, PDF)
Strange Nonchaotic Stars. Lindner, John F. et al. 2015, Physical Review Letters (ADS, PDF)
Pulsation Period Variations in the RRc Lyrae Star KIC 5520878. Hippke, M., Learned, J. G., Zee, A. et al. 2015, Astrophysical Journal (ADS, PDF)