Publications (59)
Tidal Constraints on Planetary Habitability
Rory Barnes, Brian Jackson, Richard Greenberg +2
We review how tides may impact the habitability of terrestrial-like planets. If such planets form around low-mass stars, then planets in the circumstellar habitable zone will be cl…
Habitable Evaporated Cores: Transforming Mini-Neptunes into Super-Earths in the Habitable Zones of M Dwarfs
Rodrigo Luger, Rory Barnes, Eric Lopez +3
We show that photoevaporation of small gaseous exoplanets ("mini-Neptunes") in the habitable zones of M dwarfs can remove several Earth masses of hydrogen and helium from these pla…
Kepler and Ground-based Transits of the Exo-Neptune HAT-P-11b
Drake Deming, Pedro V. Sada, Brian Jackson +6
We analyze 26 archival Kepler transits of the exo-Neptune HAT-P-11b, supplemented by ground-based transits observed in the blue (B-band) and near-IR (J-band). Both the planet and h…
The HD 40307 Planetary System: Super-Earths or Mini-Neptunes?
Rory Barnes, Brian Jackson, Sean N. Raymond +2
Three planets with minimum masses less than 10 Earth masses orbit the star HD 40307, suggesting these planets may be rocky. However, with only radial velocity data, it is impossibl…
HAL3D: Hierarchical Active Learning for Fine-Grained 3D Part Labeling
Fenggen Yu, Yiming Qian, Francisca Gil-Ureta +3
We present the first active learning tool for fine-grained 3D part labeling, a problem which challenges even the most advanced deep learning (DL) methods due to the significant str…
Too Little, Too Late: How the Tidal Evolution of Hot Jupiters affects Transit Surveys of Clusters
John H. Debes, Brian Jackson
The tidal evolution of hot Jupiters may change the efficiency of transit surveys of stellar clusters. The orbital decay that hot Jupiters suffer may result in their destruction, le…
Looking for Very Short-Period Planets with Re-Purposed Kepler
Brian Jackson
A re-purposed Kepler mission could continue the search for nearly Earth-sized planets in very short-period (< 1 day) orbits. Recent surveys of the Kepler data already available hav…
Habitability of Planets Orbiting Cool Stars
Rory Barnes, Victoria S. Meadows, Shawn D. Domagal-Goldman +6
Terrestrial planets are more likely to be detected if they orbit M dwarfs due to the favorable planet/star size and mass ratios. However, M dwarf habitable zones are significantly…
The Athena X-ray Integral Field Unit (X-IFU)
Didier Barret, Thien Lam Trong, Jan-Willem den Herder +88
The X-ray Integral Field Unit (X-IFU) on board the Advanced Telescope for High-ENergy Astrophysics (Athena) will provide spatially resolved high-resolution X-ray spectroscopy from…
The X-ray Integral Field Unit at the end of the Athena reformulation phase
Philippe Peille, Didier Barret, Edoardo Cucchetti +279
The Athena mission entered a redefinition phase in July 2022, driven by the imperative to reduce the mission cost at completion for the European Space Agency below an acceptable ta…
Tidal Decay and Stable Roche-Lobe Overflow of Short-Period Gaseous Exoplanets
Brian Jackson, Emily Jensen, Sarah Peacock +2
Many gaseous exoplanets in short-period orbits are on the verge or are in the process of Roche-lobe overflow (RLO). Moreover, orbital stability analysis shows tides can drive many…
Detection of Thermal Emission from a Super-Earth
Brice-Olivier Demory, Michael Gillon, Sara Seager +3
We report on the detection of infrared light from the super-Earth 55 Cnc e, based on four occultations obtained with Warm Spitzer at 4.5 microns. Our data analysis consists of a tw…
Doomed Worlds II: Reassessing Suggestions of Orbital Decay for TrES-5 b
Marvin Rothmeier, Elisabeth R. Adams, Karsten Schindler +9
TrES-5b is one of only three ultra-hot Jupiters (UHJs) with suggestions of a possibly decreasing orbital period that have persisted through multiple independent analyses (G. Maciej…
Ultra Short Period Planets in K2 with companions: a double transiting system for EPIC 220674823
Elisabeth R. Adams, Brian Jackson, Michael Endl +10
Two transiting planets have been identified orbiting K2 target EPIC 220674823. One object is an ultra-short-period planet (USP) with a period of just 0.57 days (13.7 hours), while…
Tides and the Evolution of Planetary Habitability
Rory Barnes, Sean N. Raymond, Brian Jackson +1
Tides raised on a planet by its host star's gravity can reduce a planet's orbital semi-major axis and eccentricity. This effect is only relevant for planets orbiting very close to…
On the Relationship between Dust Devil Radii and Heights
Brian Jackson
The influence of dust devils on the martian atmosphere depends on their capacity to loft dust, which depends on their wind profiles and footprint on the martian surface, i.e., on t…
RoSI: Recovering 3D Shape Interiors from Few Articulation Images
Akshay Gadi Patil, Yiming Qian, Shan Yang +3
The dominant majority of 3D models that appear in gaming, VR/AR, and those we use to train geometric deep learning algorithms are incomplete, since they are modeled as surface mesh…
Inferring Vortex and Dust Devil Statistics from InSight
Brian Jackson, Justin Crevier, Michelle Szurgot +3
The InSight mission has operated on the surface of Mars for nearly two Earth years, returning detections of the first Marsquakes. The lander also deployed a meteorological instrume…
Tidal Effects on the Habitability of Exoplanets: The Case of GJ 581 d
Rory Barnes, Brian Jackson, René Heller +2
Tides may be crucial to the habitability of exoplanets. If such planets form around low-mass stars, then those in the circumstellar habitable zone will be close enough to their hos…
An Internet Database of Ultraviolet Lightcurves for Seyfert Galaxies
Jay P. Dunn, Brian Jackson, Rajesh P. Deo +3
Using the Multimission Archives at Space Telescope (MAST), we have extracted spectra and determined continuum light curves for 175 Seyfert Galaxies that have been observed with the…
Constraining Tidal Dissipation in Stars from The Destruction Rates of Exoplanets
Kaloyan Penev, Brian Jackson, Federico Spada +1
We use the distribution of extrasolar planets in circular orbits around stars with surface convective zones detected by ground based transit searches to constrain how efficiently t…
POET: A Model for (P)lanetary (O)rbital (E)volution due to (T)ides on Evolving Stars
Kaloyan Penev, Michael Zhang, Brian Jackson
We make publicly available an efficient, versatile, easy to use and extend tool for calculating the evolution of circular aligned planetary orbits due to the tidal dissipation in t…
Estimating the Heights of Martian Vortices from Mars 2020 MEDA Data
Brian Jackson
Small convective vortices occur ubiquitously on Mars, frequently as dust devils, and they produce detectable signals in meteorological data -- in pressure, temperature, and wind sp…
A test platform for the detection and readout chain for the Athena X-IFU
Gabriele Betancourt-Martinez, François Pajot, Sophie Beaumont +26
We present a test platform for the Athena X-IFU detection chain, which will serve as the first demonstration of the representative end-to-end detection and readout chain for the X-…
Variability in the Atmosphere of the Hot Jupiter Kepler-76b
Brian Jackson, Elisabeth Adams, Wesley Sandidge +2
Phase curves and secondary eclipses of gaseous exoplanets are diagnostic of atmospheric composition and meteorology, and the long observational baseline and high photometric precis…
Tidal Evolution of Close-in Extra-Solar Planets
Brian Jackson, Richard Greenberg, Rory Barnes
The distribution of eccentricities e of extra-solar planets with semi-major axes a > 0.2 AU is very uniform, and values for e are relatively large, averaging 0.3 and broadly distri…
Infrared Eclipses of the Strongly Irradiated Planet WASP-33b, and Oscillations of its Host Star
Drake Deming, Jonathan D. Fraine, Pedro V. Sada +7
We observe two secondary eclipses of the strongly irradiated transiting planet WASP-33b in the Ks band, and one secondary eclipse each at 3.6- and 4.5 microns using Warm Spitzer. T…
Metrics for Optimizing Searches for Orbital Precession and Tidal Decay via Transit- and Occultation-Timing
Brian Jackson, Elisabeth R. Adams, Rachel M. Huchmala +4
Short-period exoplanets may exhibit orbital precession driven by several different processes, including tidal interactions with their host stars and secular interactions with addit…
Finite Temperature Models of Bose-Einstein Condensation
Nick P. Proukakis, Brian Jackson
The theoretical description of trapped weakly-interacting Bose-Einstein condensates is characterized by a large number of seemingly very different approaches which have been develo…
A New Model of Roche-lobe Overflow for Short-Period Gaseous Planets and Binary Stars
Brian Jackson, Phil Arras, Kaloyan Penev +2
Some close-in gaseous exoplanets are nearly in Roche-lobe contact, and previous studies show tidal decay can drive hot Jupiters into contact during the main sequence of their host…
Dust Devils on Titan
Brian Jackson, Ralph D. Lorenz, Jason W. Barnes +1
Conditions on Saturn's moon Titan suggest dust devils, which are convective, dust-laden plumes, may be active. Although the exact nature of dust on Titan is unclear, previous obser…
A Framework for Relating the Structures and Recovery Statistics in Pressure Time-Series Surveys for Dust Devils
Brian Jackson, Ralph Lorenz, Karan Davis
Dust devils are likely the dominant source of dust for the martian atmosphere, but the amount and frequency of dust-lifting depend on the statistical distribution of dust devil par…
Doomed Worlds I: No new evidence for orbital decay in a long-term survey of 43 ultra-hot Jupiters
Elisabeth R. Adams, Brian Jackson, Amanda A. Sickafoose +8
Ultra-hot Jupiters are likely doomed by tidal forces to undergo orbital decay and eventual disruption by their stars, but the timescale over which this process unfolds is unknown.…
Tidal Heating of Terrestrial Extra-Solar Planets and Implications for their Habitability
Brian Jackson, Rory Barnes, Richard Greenberg
The tidal heating of hypothetical rocky (or terrestrial) extra-solar planets spans a wide range of values depending on stellar masses and initial orbits. Tidal heating may be suffi…
Tidal effects on brown dwarfs: Application to the eclipsing binary 2MASSJ05352184-0546085 - The anomalous temperature reversal in the context of tidal heating
René Heller, Brian Jackson, Rory Barnes +2
2MASSJ05352184-0546085 (2M0535-05) is the only known eclipsing brown dwarf (BD) binary, and so may serve as an important benchmark for models of BD formation and evolution. However…
Recent Transits of the Super-Earth Exoplanet GJ 1214b
Pedro V. Sada, Drake Deming, Brian Jackson +6
We report recent ground-based photometry of the transiting super-Earth exoplanet GJ1214b at several wavelengths, including the infrared near 1.25 microns (J-band). We observed a J-…
Ultra Short Period Planets in K2: SuPerPiG Results for Campaigns 0-5
Elisabeth R. Adams, Brian Jackson, Michael Endl
We have analyzed data from Campaigns 0-5 of the K2 mission and report 19 ultra-short-period candidate planets with orbital periods of less than 1 day (nine of which have not been p…
Tidal Evolution of Close-in Extra-Solar Planets
Brian Jackson, Richard Greenberg, Rory Barnes
The distribution of eccentricities e of extra-solar planets with semi-major axes a > 0.2 AU is very uniform, and values for e are generally large. For a < 0.2 AU, eccentricities ar…
DPA-Net: Structured 3D Abstraction from Sparse Views via Differentiable Primitive Assembly
Fenggen Yu, Yiming Qian, Xu Zhang +4
We present a differentiable rendering framework to learn structured 3D abstractions in the form of primitive assemblies from sparse RGB images capturing a 3D object. By leveraging…
CoRoT-7 b: Super-Earth or Super-Io?
Rory Barnes, Sean N. Raymond, Richard Greenberg +2
CoRoT-7 b, a planet about 70% larger than the Earth orbiting a Sun-like star, is the first-discovered rocky exoplanet, and hence has been dubbed a "super-Earth". Some initial studi…
Observational Evidence for Tidal Destruction of Exoplanets
Brian Jackson, Rory Barnes, Richard Greenberg
The distribution of the orbits of close-in exoplanets shows evidence for on-going removal and destruction by tides. Tides raised on a planet's host star cause the planet's orbit to…
A Survey for Very Short-Period Planets in the Kepler Data
Brian Jackson, Christopher C. Stark, Elisabeth R. Adams +2
We conducted a search for very short-period transiting objects in the publicly available Kepler dataset. Our preliminary survey has revealed four planetary candidates, all with orb…
Multiplexed readout demonstration of a TES-based detector array in a resistance locked loop
Jan van der Kuur, Luciano Gottardi, Mikko Kiviranta +5
TES-based bolometer and microcalorimeter arrays with thousands of pixels are under development for several space-based and ground-based applications. A linear detector response and…
Accretion of Planetary Material onto Host Stars
Brian Jackson, Joleen Carlberg
Accretion of planetary material onto host stars may occur throughout a star's life. Especially prone to accretion, extrasolar planets in short-period orbits, while relatively rare,…
Tidal Limits to Planetary Habitability
Rory Barnes, Brian Jackson, Richard Greenberg +1
The habitable zones of main sequence stars have traditionally been defined as the range of orbits that intercept the appropriate amount of stellar flux to permit surface water on a…
Investigating Planet Formation and Evolutionary Processes with Short-Period Exoplanets
Brian Jackson, Elisabeth Adams, René Heller +1
From wispy gas giants on the verge of disruption to tiny rocky bodies already falling apart, short-period exoplanets pose a severe puzzle to theories of planet formation and orbita…
Metrics for Optimizing Searches for Tidally Decaying Exoplanets
Brian Jackson, Elisabeth R. Adams, Jeffrey P. Morgenthaler
Tidal interactions between short-period exoplanets and their host stars drive orbital decay and have likely led to engulfment of planets by their stars. Precise transit timing surv…
On Dust Devil Diameters, Occurrence Rates, and Activity
Brian Jackson, Lori Fenton, Ralph Lorenz +3
As a phenomenon that occurs on Earth and on Mars, the diameter of a dust devil helps determine the amount of dust the devil injects into the atmosphere for both worlds -- for a giv…
The TEMPO Survey II: Science Cases Leveraged from a Proposed 30-Day Time Domain Survey of the Orion Nebula with the Nancy Grace Roman Space Telescope
Melinda Soares-Furtado, Mary Anne Limbach, Andrew Vanderburg +26
The TEMPO (Transiting Exosatellites, Moons, and Planets in Orion) Survey is a proposed 30-day observational campaign using the Nancy Grace Roman Space Telescope. By providing deep,…
Development of the superconducting detectors and read-out for the X-IFU instrument on board of the X-ray observatory Athena
Luciano Gottardi, Hiroki Akamatsu, Marcel P. Bruijn +6
The Advanced Telescope for High-Energy Astrophysics (Athena) has been selected by ESA as its second large-class mission. The future European X-ray observatory will study the hot an…
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…
Profiling Near-Surface Winds on Mars Using Attitude Data from Mars 2020 Ingenuity
Brian Jackson, Lori Fenton, Travis Brown +8
We used attitude data from the Mars Ingenuity helicopter with a simple steady-state model to estimate windspeeds and directions at altitudes of 3 meters up to 24 meters, the first…
Ultra Short Period Planets in K2 III: Neighbors are Common with 13 New Multi-Planet Systems and 10 Newly Validated Planets in Campaigns 0-8, 10
Elisabeth R. Adams, Brian Jackson, Samantha Johnson +14
Using the EVEREST photometry pipeline, we have identified 74 candidate ultra-short-period planets (orbital period P<1 d) in the first half of the K2 data (Campaigns 0-8 and 10). Of…
Vortices and Dust Devils As Observed by the MEDA Instruments onboard Mars 2020 Perseverance Rover
Brian Jackson
An important and perhaps dominant source of dust in the martian atmosphere, dust devils play a key role in Mars' climate. Datasets from previous landed missions have revealed dust…
The Athena X-ray Integral Field Unit
Didier Barret, Thien Lam Trong, Jan-Willem den Herder +100
The X-ray Integral Field Unit (X-IFU) is the high resolution X-ray spectrometer of the ESA Athena X-ray observatory. Over a field of view of 5' equivalent diameter, it will deliver…
Planetary Transits and Tidal Evolution
Brian Jackson, Rory Barnes, Richard Greenberg
Transiting planets are generally close enough to their host stars that tides may govern their orbital and thermal evolution of these planets. We present calculations of the tidal e…
The Roles of Tidal Evolution and Evaporative Mass Loss in the Origin of CoRoT-7 b
Brian Jackson, Neil Miller, Rory Barnes +3
CoRoT-7 b is the first confirmed rocky exoplanet, but, with an orbital semi-major axis of 0.0172 AU, its origins may be unlike any rocky planet in our solar system. In this study,…
The Athena X-ray Integral Field Unit: a consolidated design for the system requirement review of the preliminary definition phase
Didier Barret, Vincent Albouys, Jan-Willem den Herder +296
The Athena X-ray Integral Unit (X-IFU) is the high resolution X-ray spectrometer, studied since 2015 for flying in the mid-30s on the Athena space X-ray Observatory, a versatile ob…
Tidal Heating of Extra-Solar Planets
Brian Jackson, Richard Greenberg, Rory Barnes
Extra-solar planets close to their host stars have likely undergone significant tidal evolution since the time of their formation. Tides probably dominated their orbital evolution…