464 citations
- California Institute of TechnologyUS29 papers
- Goddard Space Flight CenterUS23 papers
- University of California, BerkeleyUS19 papers
- University of CambridgeGB19 papers
- European Space Astronomy CentreES15 papers
- Center for Astrophysics Harvard & SmithsonianUS14 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Max Planck Institute for Solar System ResearchDE8 papers
- National Institute for AstrophysicsIT8 papers
- Jet Propulsion LaboratoryUS7 papers
- University of SouthamptonGB7 papers
- University of TübingenDE7 papers
12 papers · 1 filter
Interstellar communication network. I. Overview and assumptions
Michael Hippke
It has recently been suggested in this journal by Benford (2019) that "Lurkers" in the form of interstellar exploration probes could be present in the solar system. Similarly, extr…
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
René Heller, Kai Rodenbeck, Michael Hippke
We apply, for the first time, the Transit Least Squares (TLS) algorithm to search for new transiting exoplanets. TLS is a successor to the Box Least Squares (BLS) algorithm, which…
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…
A planetesimal orbiting within the debris disc around a white dwarf star
Christopher J. Manser, Boris T. Gänsicke, Siegfried Eggl +29
Many white dwarf stars show signs of having accreted smaller bodies, implying that they may host planetary systems. A small number of these systems contain gaseous debris discs, vi…
Plasma environment effects on K lines of astrophysical interest. II. Ionization potentials, K thresholds, radiative rates and Auger widths in Ne- through He-like iron ions (Fe xvii - Fe xxv)
J. Deprince, M. A. Bautista, S. Fritzsche +5
Aims. In the context of accretion disks around black holes, we estimate plasma-environment effects on the atomic parameters associated with the decay of K-vacancy states in highly…
The First NuSTAR Observation of 4U 1538-522: Updated Orbital Ephemeris and A Strengthened Case for an Evolving Cyclotron Line Energy
Paul B. Hemphill, Richard E. Rothschild, Diana M. Cheatham +7
We have performed a comprehensive spectral and timing analysis of the first NuSTAR observation of the high-mass X-ray binary 4U 1538-522. The observation covers the X-ray eclipse o…