263 citations · 2.8k across the 46 of their papers we have counts for
46 papers
Orbital alignment of the eccentric warm Jupiter TOI-677 b
Elyar Sedaghati, Andrés Jordán, Rafael Brahm +3
Warm Jupiters lay out an excellent laboratory for testing models of planet formation and migration. Their separation from the host star makes tidal reprocessing of their orbits ine…
The influence of cold Jupiters in the formation of close-in planets. I. planetesimal transport
Marcy Best, Antranik A. Sefilian, Cristobal Petrovich
The formation of a cold Jupiter (CJ) is expected to quench the influx of pebbles and the migration of cores interior to its orbit, thus limiting the efficiency of rocky planet form…
A gap-sharing planet pair shaping the crescent in HD 163296: a disk sculpted by a resonant chain
Juan Garrido-Deutelmoser, Cristobal Petrovich, Carolina Charalambous +2
ALMA observations of the disk around HD 163296 have resolved a crescent-shape substructure at around 55 au, inside and off-center from a gap in the dust that extends from 38 au to…
NEID Reveals that The Young Warm Neptune TOI-2076 b Has a Low Obliquity
Robert C. Frazier, Gudmundur Stefansson, Suvrath Mahadevan +27
TOI-2076 b is a sub-Neptune-sized planet () that transits a young () bright () K-dwarf hosting a system of three transiting…
Substructures in protoplanetary disks imprinted by compact planetary systems
Juan Garrido-Deutelmoser, Cristobal Petrovich, Leonardo Krapp +2
The substructures observed in protoplanetary disks may be the signposts of embedded planets carving gaps or creating vortices. The inferred masses of these planets often fall in th…
Eccentric Mergers of Intermediate-Mass Black Holes from Evection Resonances in AGN Disks
Diego J. Muñoz, Nicholas C. Stone, Cristobal Petrovich +1
We apply the theory of nonlinear resonance capture to the problem of a black hole binary (BHB) orbiting a supermassive black hole (SMBH) while embedded in the accretion disk of an…
Mutual Inclination of Ultra-Short-Period Planets with Time Varying Stellar J2-moment
Chen Chen, Gongjie Li, Cristobal Petrovich
Systems with ultra-short-period planets (USPs) tend to possess larger mutual inclinations compared to those with planets located farther from their host stars. This could be explai…
The chaotic history of the retrograde multi-planet system in K2-290A driven by distant stars
Marcela Best, Cristobal Petrovich
The equator of star K2-290A was recently found to be inclined by 124+/-6 degrees relative to the orbits of both its known transiting planets. The presence of a companion star B at…
The Warm Neptune GJ 3470b has a Polar Orbit
Gudmundur Stefansson, Suvrath Mahadevan, Cristobal Petrovich +34
The warm Neptune GJ 3470b transits a nearby (pc) bright slowly rotating M1.5-dwarf star. Using spectroscopic observations during two transits with the newly commissioned NEID…
Formation of counter-rotating and highly eccentric massive black hole binaries in galaxy mergers
Imran Nasim, Cristobal Petrovich, Adam Nasim +2
Supermassive black hole (SMBH) binaries represent the main target for missions such as the Laser Interferometer Space Antenna and Pulsar Timing Arrays. The understanding of their d…
Observable Predictions from Perturber-coupled High-eccentricity Tidal Migration of Warm Jupiters
Jonathan M. Jackson, Rebekah I. Dawson, Andrew Shannon +1
The origin of warm Jupiters (gas giant planets with periods between 10 and 200 days) is an open question in exoplanet formation and evolution. We investigate a particular migration…
Kozai Migration Naturally Explains the White Dwarf Planet WD1856b
Diego J. Muñoz, Cristobal Petrovich
The Jovian-sized object WD~1856~b transits a white dwarf (WD) in a compact -day orbit. Unlikely to have endured stellar evolution in its current orbit, WD~1856~b is thought to…
An Ultra-Hot Neptune in the Neptune desert
James S. Jenkins, Matías R. Díaz, Nicolás T. Kurtovic +81
About one out of 200 Sun-like stars has a planet with an orbital period shorter than one day: an ultra-short-period planet (Sanchis-ojeda et al. 2014; Winn et al. 2018). All of the…
Constraining protoplanetary disks with exoplanetary dynamics: Kepler-419 as an example
Mohamad Ali-Dib, Cristobal Petrovich
We investigate the origins of Kepler-419, a peculiar system hosting two nearly coplanar and highly eccentric gas giants with apsidal orientations librating around anti-alignment, a…
A disk-driven resonance as the origin of high inclinations of close-in planets
Cristobal Petrovich, Diego J. Muñoz, Kaitlin M. Kratter +1
The recent characterization of transiting close-in planets has revealed an intriguing population of sub-Neptunes with highly tilted and even polar orbits relative to their host sta…
Compact-Object Mergers in the Galactic Center: Evolution in Triaxial Clusters
Mathew W. Bub, Cristobal Petrovich
There is significant observational evidence that a large fraction of galactic centers, including those in the Milky Way and M31, host a supermassive black hole (SMBH) embedded in a…
Nekhoroshev Estimates for the Survival Time of Tightly Packed Planetary Systems
Almog Yalinewich, Cristobal Petrovich
-body simulations of non-resonant tightly-packed planetary systems have found that their survival time (i.e. time to first close encounter) grows exponentially with their interp…
Signatures of a planet-planet impacts phase in exoplanetary systems hosting giant planets
Renata Frelikh, Hyerin Jang, Ruth A. Murray-Clay +1
Exoplanetary systems host giant planets on substantially non-circular, close-in orbits. We propose that these eccentricities arise in a phase of giant impacts, analogous to the fin…
HD 1397b: a transiting warm giant planet orbiting a V = 7.8 mag sub-giant star discovered by TESS
Rafael Brahm, Néstor Espinoza, Andrés Jordán +11
We report the discovery of a transiting planet first identified as a candidate in Sector 1 of the Transiting Exoplanet Survey Satellite (TESS), and then confirmed with precision ra…
Secular transport during disk dispersal: the case of Kepler-419
Cristobal Petrovich, Yanqin Wu, Mohamad Ali-Dib
Due to fortuitous circumstances, the two giant planets around Kepler-419 have well characterized 3-D orbits. They are nearly coplanar to each other; the inner one has a large eccen…
The impact of vector resonant relaxation on the evolution of binaries near a massive black hole: implications for gravitational wave sources
Adrian S. Hamers, Ben Bar-Or, Cristobal Petrovich +1
Binaries within the sphere of influence of a massive black hole (MBH) in galactic nuclei are susceptible to the Lidov-Kozai (LK) mechanism, which can drive orbits to high eccentric…
Ultra-short-period planets from secular chaos
Cristobal Petrovich, Emily Deibert, Yanqin Wu
Over a hundred rocky planets orbiting Sun-like stars in very short orbital periods (<1 day) have been discovered by the Kepler mission. These planets, known as ultra-short-period (…
About 30% of Sun-like Stars Have Kepler-like Planetary Systems: A Study of their Intrinsic Architecture
Wei Zhu, Cristobal Petrovich, Yanqin Wu +2
We constrain the intrinsic architecture of Kepler planetary systems by modeling the observed multiplicities of the transiting planets (tranets) and their transit timing variations…
Precessional dynamics of black hole triples: binary mergers with near-zero effective spin
Fabio Antonini, Carl L. Rodriguez, Cristobal Petrovich +1
The binary black hole mergers detected by Advanced LIGO/Virgo have shown no evidence of large black hole spins. However, because LIGO/Virgo best measures the effective combination…