1.4k citations
- Center for Astrophysics Harvard & SmithsonianUS15 papers
- Goddard Space Flight CenterUS11 papers
- California Institute of TechnologyUS7 papers
- University of MichiganUS7 papers
- NASA Astrobiology InstituteUS6 papers
- University of RochesterUS5 papers
- Cornell UniversityUS4 papers
- National Academies of Sciences, Engineering, and MedicineUS4 papers
- National Radio Astronomy ObservatoryUS4 papers
- The University of Texas at AustinUS4 papers
- United States Naval Research LaboratoryUS4 papers
- University of Maryland, College ParkUS4 papers
15 papers · 1 filter
A multiwavelength investigation of the massive eclipsing binary Cyg OB2 #5
N. Linder, G. Rauw, J. Manfroid +5
The properties of the early-type binary Cyg OB2 #5 have been debated for many years and spectroscopic and photometric investigations yielded conflicting results. We have attempted…
A dynamical perspective on additional planets in 55 Cancri
Sean N. Raymond, Rory Barnes, Noel Gorelick
Five planets are known to orbit the star 55 Cancri. The recently-discovered planet f at 0.78 AU (Fischer et al. 2008) is located at the inner edge of a previously-identified stable…
Structure and star formation in galaxies out to z=3: evidence for surface density dependent evolution and upsizing
Marijn Franx, Pieter G. van Dokkum, Natascha M. Foerster Schreiber +3
We present an analysis of galaxies in the CDF-South. We find a tight relation to z=3 between color and size at a given mass, with red galaxies being small, and blue galaxies being…
On the Importance of the Interclump Medium for Superionization: O VI Formation in the Wind of Zeta Pup
J. Zsargo, D. J. Hillier, J. -C. Bouret +3
We have studied superionization and X-ray line formation in the spectra of Zeta Pup using our new stellar atmosphere code (XCMFGEN) that can be used to simultaneously analyze optic…
Extrasolar Planet Eccentricities from Scattering in the Presence of Residual Gas Disks
Nickolas Moeckel, Sean N. Raymond, Philip J. Armitage
Gravitational scattering between massive planets has been invoked to explain the eccentricity distribution of extrasolar planets. For scattering to occur, the planets must either f…
Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics
Eric E. Mamajek, Lynne A. Hillenbrand
While the strong anti-correlation between chromospheric activity and age has led to the common use of the Ca II H & K emission index (R'_HK = L_HK/L_bol) as an empirical age estima…