203 citations · 1.5k across the 42 of their papers we have counts for
9 papers · 1 filter
Adaptation of the Phase Distance Correlation Periodogram to Account for Measurement Uncertainties
Avraham Binnenfeld, Sahar Shahaf, Shay Zucker
We present an improvement of the phase distance correlation (PDC) periodogram to account for uncertainties in the time-series data. The PDC periodogram introduced in our previous p…
A linearized approach to radial velocity extraction
Sahar Shahaf, Barak Zackay
High-precision radial velocity (RV) measurements are crucial for exoplanet detection and characterisation. Efforts to achieve ~10 cm/s precision have been made over the recent deca…
Model Independent Periodogram for Scanning Astrometry
Avraham Binnenfeld, Sahar Shahaf, Shay Zucker
We present a new periodogram for periodicity detection in one-dimensional time-series data from scanning astrometry space missions, like Hipparcos or Gaia. The periodogram is non-p…
ULTRASAT: A wide-field time-domain UV space telescope
Y. Shvartzvald, E. Waxman, A. Gal-Yam +41
The Ultraviolet Transient Astronomy Satellite (ULTRASAT) is scheduled to be launched to geostationary orbit in 2026. It will carry a telescope with an unprecedentedly large field o…
fBLS -- a fast-folding BLS algorithm
Sahar Shahaf, Barak Zackay, Tsevi Mazeh +2
We present fBLS -- a novel fast-folding technique to search for transiting planets, based on the fast-folding algorithm (FFA), which is extensively used in pulsar astronomy. For a…
New Periodograms Separating Orbital Radial Velocities and Spectral Shape Variation
Avraham Binnenfeld, Sahar Shahaf, Richard I. Anderson +1
We present new periodograms that are effective in distinguishing Doppler shift from spectral shape variability in astronomical spectra. These periodograms, building upon the concep…
USuRPER: Unit-Sphere Representation PERiodogram for full spectra
Avraham Binnenfeld, Sahar Shahaf, Shay Zucker
We introduce an extension of the periodogram concept to time-resolved spectroscopy. USuRPER -- Unit Sphere Representation PERiodogram -- is a novel technique which opens new horizo…
Study of the mass-ratio distribution of spectroscopic binaries. I. A novel algorithm
Sahar Shahaf, Tsevi Mazeh, Simchon Faigler
We developed a novel direct algorithm to derive the mass-ratio distribution (MRD) of short-period binaries from an observed sample of single-lined spectroscopic binaries (SB1). The…
The eShel Spectrograph: A Radial-velocity Tool at the Wise Observatory
Michael Engel, Sahar Shahaf, Tsevi Mazeh
The eShel, an off-the-shelf, fiber-fed echelle spectrograph (), was installed on the 1m telescope at the Wise observatory in Israel. We report the installation of…