23 citations · 75 across the 13 of their papers we have counts for
15 papers
White dwarf pollution in wide binaries I: the effects of stellar evolution
Constanza Norambuena, Carolina Charalambous, Claudia Aguilera-Gómez
Context. Atmospheric pollution in white dwarfs is interpreted as evidence for the accretion of rocky material from remnant planetary systems. Wide binary companions can influence t…
Stability of circumbinary planets: the role of binary properties and migration scenarios
Romain Grane, Nicolás Cuello, Mario Sucerquia +4
Among the thousands of exoplanets detected to date, only a very small fraction are classified as circumbinary planets, and this number becomes negligible when considering low-mass…
Dynamical constraints on planet engulfment as the origin of lithium enhancement in TOI-5882
C. Charalambous, C. Aguilera-Gómez, S. Urrutia +1
As stars evolve off the main sequence, changes in stellar structure can alter the dynamical architecture of planetary systems and, in some cases, lead to planet engulfment events c…
Two inner dust clumps in PDS 70. A third protoplanet traced by trojan material or a substructured inner disk?
O. Balsalobre-Ruza, V. Christiaens, N. Huélamo +18
The PDS 70 cavity hosts two confirmed directly imaged protoplanets and a third inner planet candidate at 13au, labeled PDS 70 d. Despite its Keplerian motion, its unusually blue sp…
Planetary architectures under the influence of a stellar binary
Milenne Ávila-Bravo, Carolina Charalambous, Claudia Aguilera-Gómez
Context. The presence of a stellar companion can strongly influence the architecture and long-term stability of planetary systems. Motivated by the discovery of exoplanets exhibiti…
A Cold and Super-Puffy Planet on a Prograde Orbit
Juan I. Espinoza-Retamal, Rafael Brahm, Cristobal Petrovich +36
We report the discovery of TOI-4507 b, a transiting sub-Saturn with a density 0.2 g/cm on a 105-day prograde orbit around a 700 Myr old F star. The transits were detected u…
The Influence of Cold Jupiters in the Formation of Close-in planets. II. Collisional Growth of Planetesimals
Marcela Best, Antranik A. Sefilian, Carolina Charalambous +2
Exoplanet observations have shown that the occurrence and orbital architectures of close-in super-Earths and sub-Neptunes are shaped by the presence of outer gas giant planets. Thi…
Destruction of "Peas in a Pod?" A Candidate Multi-planet System Around the Nearby, Bright Star, HD208487
Rafael I. Rubenstein, James S. Jenkins, Pablo A. Peña R. +15
We re-investigate the HD208487 system to test the reality of the proposed HD208487c world. We also search for additional companions using applied Bayesian statistics and 15+ years…
The HR 8799 Debris Disc: Shaped by Planetary Migration and a Possible Fifth Outermost Planet
Pedro P. Poblete, Tim D. Pearce, Carolina Charalambous
Context. The HR 8799 system, hosting four giant planets between a warm and cold debris disc, and an extended dusty tail beyond, serves as an ideal laboratory for studying planetary…
Breaking long-period resonance chains with stellar flybys
C. Charalambous, N. Cuello, C. Petrovich
Context. Planetary migration models predict multiple planets captured into a chain of mean-motion resonances during the disk phase. Over a dozen systems have been observed in these…
What can PhD students and postdocs do to counter inequalities?
Lorena Ballesteros Ferraz, Carolina Charalambous, Sébastien Mouchet +1
In this opinion article, we gathered some reflections and practical tips on what Early Stage Researchers do against inequalities in academia. This is the longer version of an opini…
Tidal interactions shape period ratios in planetary systems with three-body resonant chains
Carolina Charalambous, Jean Teyssandier, Anne-Sophie Libert
These last years several Systems with Tightly packed Inner Planets in the super-Earth mass regime have been discovered harboring chains of resonances. It is generally believed that…
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…
Detection of separatrices and chaotic seas based on orbit amplitudes
Jerome Daquin, Carolina Charalambous
The Maximum Eccentricity Method (MEM) is a standard tool for the analysis of planetary systems and their stability. The method amounts to estimating the maximal stretch of orbits o…
Proximity of exoplanets to first-order mean-motion resonances
Carolina Charalambous, Jean Teyssandier, Anne-Sophie Libert
Planetary formation theories and, more specifically, migration models predict that planets can be captured in mean-motion resonances (MMRs) during the disc phase. The distribution…