Benjamin Pope

A Candidate Innermost Fifth Planet In the HR 8799 System Revealed By JWST NIRISS Aperture Masking Interferometry

Jayke S. Nguyen, Louis Desdoigts, Alexandra Z. Greenbaum, Benjamin Pope et autres

We detect a candidate fifth planet in the HR 8799 system, directly imaged with the JWST/NIRISS Aperture Masking Interferometer (AMI). The detected source lies just above a $3σ$ contrast curve at a contrast of $\sim2\times10^{-4}$ in the F380M filter at a projected …

Supplementary materials (tables) for "Asteroseismology and interferometry of the F7V spectroscopic binary χ Draconis A in the TESS CVZ"

Jonatan Rudrasingam, Mikkel N. Lund, F. Grundahl, Arnab Chowhan et autres

Supplementary materials for Asteroseismology and interferometry of the F7V spectroscopic binary χ Draconis A in the TESS CVZ, The tables contain spectroscopic measurements of chi Dra A and B by the 1 m Hertzsprung SONG Telescope located at Observatorio del Teide in …

au, dk, es, ro, it, us, ca, fr (code pays fourni par la source)

Supplementary materials (tables) for "Asteroseismology and interferometry of the F7V spectroscopic binary χ Draconis A in the TESS CVZ"

Jonatan Rudrasingam, Mikkel N. Lund, F. Grundahl, Arnab Chowhan et autres

Supplementary materials for Asteroseismology and interferometry of the F7V spectroscopic binary χ Draconis A in the TESS CVZ, The tables contain spectroscopic measurements of chi Dra A and B by the 1 m Hertzsprung SONG Telescope located at Observatorio del Teide in …

au, dk, es, ro, it, us, ca, fr (code pays fourni par la source)

Photometry for highly saturated TESS stars

Jonatan Rudrasingam, Benjamin Pope, T. R. Bedding, T. R. White

Saturation in TESS complicates simple aperture photometry, as flux can be lost to bleeding outside the target pixels. Halo photometry can nevertheless reconstruct good light curves of these stars, as a weighted linear combination of pixel time series from the unsaturatedwings of …

au, dk (code pays fourni par la source)

Photometry for highly saturated TESS stars

Jonatan Rudrasingam, Benjamin Pope, T. R. Bedding, T. R. White

Saturation in TESS complicates simple aperture photometry, as flux can be lost to bleeding outside the target pixels. Halo photometry can nevertheless reconstruct good light curves of these stars, as a weighted linear combination of pixel time series from the unsaturatedwings of …

au, dk (code pays fourni par la source)

Searching for Habitable Exoplanets with Relative Astrometry (SHERA). I. The Case for Searching for Planets in Binary Star Systems

Jessie L. Christiansen, Eric E. Mamajek, Gautam Vasisht, Catherine A. Clark et autres

Discovering Earth-like planets orbiting Sun-like stars was identified as a priority science goal of the Astronomy 2020 Decadal Survey. It is confounded by many factors, one of which is the high multiplicity of Sun-like stars in the local neighborhood - half of …

Searching for Habitable Exoplanets with Relative Astrometry (SHERA). I. The Case for Searching for Planets in Binary Star Systems

Jessie L. Christiansen, Eric E. Mamajek, Gautam Vasisht, Catherine A. Clark et autres

Discovering Earth-like planets orbiting Sun-like stars was identified as a priority science goal of the Astronomy 2020 Decadal Survey. It is confounded by many factors, one of which is the high multiplicity of Sun-like stars in the local neighborhood - half of …

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AGN Reverberation Mapping with LITMUS: Fundamental Limits on lag Recovery Rates

Hugh McDougall, Tamara M. Davis, Benjamin Pope, Paul Martini et autres

Reverberation mapping of active galactic nuclei provides one of the most direct probes of the geometry and kinematics of the broad-line region by measuring time delays between continuum and line variability. Modern RM surveys frequently suffer difficulties with lag measurements due to …

AGN Reverberation Mapping with LITMUS: Fundamental Limits on lag Recovery Rates

Hugh McDougall, Tamara M. Davis, Benjamin Pope, Paul Martini et autres

Reverberation mapping of active galactic nuclei provides one of the most direct probes of the geometry and kinematics of the broad-line region by measuring time delays between continuum and line variability. Modern RM surveys frequently suffer difficulties with lag measurements due to …

au, us (code pays fourni par la source)

New, scalable extensions of celerite to 2D data and their applications to exoplanet science

Mark Fortune, Neale P. Gibson, Benjamin Pope

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New, scalable extensions of celerite to 2D data and their applications to exoplanet science

Mark Fortune, Neale P. Gibson, Benjamin Pope

au, ie (code pays fourni par la source)

Calibration of an Analog-to-Digital Conversion Nonlinearity in JWST/NIRISS

Shashank Dholakia, Shishir Dholakia, Benjamin Pope, Louis Desdoigts et autres

We quantify an unusual flux-dependent systematic which is periodic in raw counts in flight data from the James Webb Space Telescope's Near Infrared Imager and Slitless Spectrograph (JWST/NIRISS), used extensively for exoplanet imaging and spectroscopy. Originally discovered in the aperture masking interferometry …