247 citations · 1.3k across the 49 of their papers we have counts for
15 papers · 1 filter
Large Exomoons unlikely around Kepler-1625 b and Kepler-1708 b
René Heller, Michael Hippke
There are more than 200 moons in our Solar System, but their relatively small radii make similarly sized extrasolar moons very hard to detect with current instruments. The best exo…
Pandora: A fast open-source exomoon transit detection algorithm
Michael Hippke, René Heller
We present Pandora, a new software to model, detect, and characterize transits of extrasolar planets with moons in stellar photometric time series. Pandora uses an analytical descr…
Signal preservation of exomoon transits during light curve folding
René Heller, Michael Hippke
In the search for moons around extrasolar planets, astronomers are confronted with a stunning observation. Although 3400 of the 4500 exoplanets were discovered with the transit met…
Transit least-squares survey -- III. A transit candidate in the habitable zone of Kepler-160 and a nontransiting planet characterized by transit-timing variations
René Heller, Michael Hippke, Jantje Freudenthal +3
The Sun-like star Kepler-160 (KOI-456) has been known to host two transiting planets, Kepler-160 b and c, of which planet c shows substantial transit-timing variations (TTVs). We u…
Wotan: Comprehensive time-series de-trending in Python
Michael Hippke, Trevor J. David, Gijs D. Mulders +1
The detection of transiting exoplanets in time-series photometry requires the removal or modeling of instrumental and stellar noise. While instrumental systematics can be reduced u…
Transit least-squares survey -- II. Discovery and validation of 17 new sub- to super-Earth-sized planets in multi-planet systems from K2
René Heller, Michael Hippke, Kai Rodenbeck
The extended Kepler mission (K2) has revealed more than 500 transiting planets in roughly 500,000 stellar light curves. All of these were found either with the box least-squares al…
Transit Least Squares: Optimized transit detection algorithm to search for periodic transits of small planets
Michael Hippke, René Heller
We present a new method to detect planetary transits from time-series photometry, the Transit Least Squares (TLS) algorithm. TLS searches for transit-like features while taking the…
Revisiting the exomoon candidate signal around Kepler-1625b
Kai Rodenbeck, René Heller, Michael Hippke +1
Transit photometry of the exoplanet candidate Kepler-1625b has recently been interpreted to show hints of a moon. We aim to clarify whether the exomoon-like signal is really caused…
Interstellar communication. II. Application to the solar gravitational lens
Michael Hippke
We have shown in paper I of this series (arXiv:1706.03795) that interstellar communication to nearby (pc) stars is possible at data rates of bits per second per Watt between a 1 m…
Predictable patterns in planetary transit timing variations and transit duration variations due to exomoons
René Heller, Michael Hippke, Ben Placek +2
We present new ways to identify single and multiple moons around extrasolar planets using planetary transit timing variations (TTVs) and transit duration variations (TDVs). For pla…
Modeling the Orbital Sampling Effect of Extrasolar Moons
René Heller, Michael Hippke, Brian Jackson
The orbital sampling effect (OSE) appears in phase-folded transit light curves of extrasolar planets with moons. Analytical OSE models have hitherto neglected stellar limb darkenin…
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
Michael Hippke, Daniel Angerhausen, Michael B. Lund +2
We present a statistical analysis of the accuracy of the digitized magnitudes of photometric plates on the time scale of decades. In our examination of archival Johnson B photometr…
A statistical search for a population of Exo-Trojans in the Kepler dataset
Michael Hippke, Daniel Angerhausen
Trojans are small bodies in planetary Lagrangian points. In our solar system, Jupiter has the largest number of such companions. Their existence is assumed for exoplanetary systems…
Photometry's bright future: Detecting Solar System analogues with future space telescopes
Michael Hippke, Daniel Angerhausen
Time-series transit photometry from the Kepler space telescope has allowed for the discovery of thousands of exoplanets. We explore the potential of yet improved future missions su…
On the detection of Exomoons: A search in Kepler data for the orbital sampling effect and the scatter peak
Michael Hippke
Despite the discovery of thousands of exoplanets, no exomoons have been detected so far. We test a recently developed method for exomoon search, the orbital sampling effect (OSE),…