activity
19982025
most citedKepler-47: A Transiting Circumbinary Multi-Planet System

378 citations · 5.2k across the 105 of their papers we have counts for

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23 papers · 1 filter

astro-ph2008★ 34 cited

A Spectroscopically Unique Main Belt Asteroid: 10537 (1991 RY16)

Nicholas A. Moskovitz, Samuel Lawrence, Robert Jedicke +4

We present visible and near-infrared reflectance spectra and interpreted surface mineralogy for asteroid 10537 (1991 RY16). The spectrum of this object is without precedent amongst…

astro-ph2008★ 7 cited

A Region Void of Irregular Satellites Around Jupiter

N. Haghighipour, D. Jewitt

An interesting feature of the giant planets of our solar system is the existence of regions around these objects where no irregular satellites are observed. Surveys have shown that…

astro-ph2007

Habitable Planet Formation in Extreme Planetary Systems: Systems with Multiple Stars and/or Multiple Planets

Nader Haghighipour

Understanding the formation and dynamical evolution of habitable planets in extrasolar planetary systems is a challenging task. In this respect, systems with multiple giant planets…

astro-ph2007

Extreme Habitability: Formation of Habitable Planets in Systems with Close-in Giant Planets and/or Stellar Companions

Nader Haghighipour

With more than 260 extrasolar planetary systems discovered to-date, the search for habitable planets has found new grounds. Unlike our solar system, the stars of many of these plan…

astro-ph2007★ 63 cited

New Worlds on the Horizon: Earth-Sized Planets Close to Other Stars

Eric Gaidos, Nader Haghighipour, Eric Agol +3

The search for habitable planets like Earth around other stars fulfils an ancient imperative to understand our origins and place in the cosmos. The past decade has seen the discove…

astro-ph2007

Habitability of Planets in Binaries

Nader Haghighipour

A survey of currently known extrasolar planets indicates that close to 20% of their hosting stars are members of binary systems. While the majority of these binaries are wide (i.e.…

astro-ph2007

Terrestrial and Habitable Planet Formation in Binary and Multi-star Systems

Nader Haghighipour, Steinn Sigurdsson, Jack Lissauer +1

One of the most surprising discoveries of extrasolar planets is the detection of planets in moderately close binary star systems. The Jovian-type planets in the two binaries of Gam…

astro-ph2007★ 158 cited

Irregular Satellites of the Planets: Products of Capture in the Early Solar System

David Jewitt, Nader Haghighipour

All four giant planets in the Solar system possess irregular satellites, characterized by large, highly eccentric and/or inclined orbits that are distinct from the nearly circular,…

astro-ph2007★ 78 cited

Habitable Planet Formation in Binary-Planetary Systems

Nader Haghighipour, Sean N. Raymond

Recent radial velocity observations have indicated that Jovian-type planets can exist in moderately close binary star systems. Numerical simulations of the dynamical stability of t…

astro-ph2005★ 67 cited

Dynamical Stability and Habitability of Gamma Cephei Binary-Planetary System

Nader Haghighipour

It has been suggested that the long-lived residual radial velocity variations observed in the precision radial velocity measurements of the primary of Gamma Cephei (HR8974, HD22240…

astro-ph2004

On the Growth of Dust Particles in a Non-Uniform Solar Nebula

Nader Haghighipour

A summary of the results of a numerical study of the growth of solid particles in the vicinity of an azimuthally symmetric density enhancement of a protostellar disk are presented.…

astro-ph2004★ 61 cited

On the Stability of Test Particles in Extrasolar Multiple Planet Systems

Eugenio J. Rivera, Nader Haghighipour

We present results of extensive numerical studies of the stability of non-interacting particles in the planetary systems of stars Upsilon Andromedae, GJ 876, 47 UMa, and 55 Cancri.…

astro-ph2004★ 3 cited

On the Dynamical Stability of Gamma Cephei, an S-Type Binary Planetary System

Nader Haghighipour

Precision radial velocity measurements of the Gamma Cephei (HR8974) binary system suggest the existence of a planetary companion with a minimum mass of 1.7 Jupiter-mass on an ellip…

astro-ph2004

On the Stability of a Planetary System Embedded in the Beta Pictoris Debris Disk

Jared H. Crossley, Nader Haghighipour

It has recently been stated that the warp structure observed around the star Beta Pictoris may be due to four planets embedded in its debris disk (Wahhaj et al., 2003). It, therefo…

astro-ph2003★ 20 cited

Rapid Growth of Dust Particles in the Vicinity of Local Gas Density Enhancements in a Solar Nebula

Nader Haghighipour

The results of a numerical study of the growth of solid particles, ranging from 1 micron to 1 millimeter in size, in the vicinity of an azimuthally symmetric density enhancement of…

astro-ph2003★ 127 cited

On Gas-Drag Induced Rapid Migration of Solids in a Non-Uniform Solar Nebula

Nader Haghighipour, Alan P. Boss

We study the motions of small solids, ranging from micron-sized dust grains to meter-sized objects, in the vicinity of local pressure enhancements of a gaseous nebula. Integrating…

astro-ph2003★ 25 cited

Stable 1:2 Resonant Periodic Orbits in Elliptic Three-Body Systems

Nader Haghighipour, Jocelyn Couetdic, Ferenc Varadi +1

The results of an extensive numerical study of the periodic orbits of planar, elliptic restricted three-body planetary systems consisting of a star, an inner massive planet and an…

astro-ph2002

Dynamical Evolution of Solids Subject to the Drag Force and the Self-Gravity of an Inhomogeneous and Marginally- Gravitationally Unstable Disk

Nader Haghighipour

The results of an extensive numerical study of the orbital dynamics of small bodies ranging from micron-sized dust grains to 1 km objects subject to gas drag and also the gravitati…

astro-ph2002★ 3 cited

On Pressure Gradients and Rapid Migration of Solids in an Inhomogeneous Solar Nebula

Nader Haghighipour, Alan P. Boss

We study the motions of small solids, ranging from micron-sized dust grains to 100-m objects, in the vicinity of a local density enhancement of an isothermal gaseous solar nebula.…

astro-ph2001★ 101 cited

Rapid Formation of Ice Giant Planets

Alan P. Boss, George W. Wetherill, Nader Haghighipour

The existence of Uranus and Neptune presents severe difficulties for the core accretion model for the formation of ice giant planets. We suggest an alternative mechanism, namely di…

astro-ph2001★ 4 cited

Partial Averaging and Resonance Trapping in a Restricted Three-Body System

Nader Haghighipour

Based on the value of the orbital eccentricity of a particle and also its proximity to the exact resonant orbit in a three-body system, the Pendulum Approximation (Dermott & Murray…

astro-ph1999★ 4 cited

Partial Averaging Near a Resonance in Planetary Dynamics

Nader Haghighipour

Following the general numerical analysis of Melita and Woolfson (1996), I showed in a recent paper that a restricted, planar, circular planetary system consisting of Sun, Jupiter a…

astro-ph1998★ 21 cited

Dynamical Friction and Resonance Trapping in Planetary Systems

Nader Haghighipour

A restricted planar circular three-body system, consisting of the Sun and two planets, is studied as a simple model for a planetary system. The mass of the inner planet is consider…