389 citations
- Carnegie ObservatoriesUS27 papers
- Geophysical LaboratoryUS10 papers
- University of California, BerkeleyUS9 papers
- California Institute of TechnologyUS6 papers
- Center for Astrophysics Harvard & SmithsonianUS6 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Goddard Space Flight CenterUS4 papers
- Princeton UniversityUS4 papers
- Department of Terrestrial MagnetismUS3 papers
- European Southern ObservatoryCL3 papers
- Leiden UniversityNL3 papers
- Lowell ObservatoryUS3 papers
5 papers · 2 filters
The Vegetation Red Edge Spectroscopic Feature as a Surface Biomarker
S. Seager, E. B. Ford
The search for Earth-like extrasolar planets is in part motivated by the potential detection of spectroscopic biomarkers. Spectroscopic biomarkers are spectral features that are ei…
Star Formation Rate estimators: [OII]3727 vs. Halpha for local star-forming galaxies
A. Aragon-Salamanca, A. Alonso-Herrero, J. Gallego +4
The [OII]3727 emission line is frequently used as an indicator of the star formation rate (SFR) despite its complex dependence on metallicity and excitation conditions. We have ana…
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…
12CO mapping of the low-metallicity BCD galaxy Mrk86
A. Gil de Paz, S. A. Silich, B. F. Madore +3
We have mapped the 12CO J=1-0 and J=2-1 line emission in Mrk86, one of the most metal-deficient Blue Compact Dwarf galaxies so far detected in 12CO. The 12CO emission is distribute…
The Complex Chemical Abundances and Evolution of the Sagittarius Dwarf Spheroidal Galaxy
Tammy A. Smecker-Hane, Andrew McWilliam
We report on the chemical abundances derived from high-dispersion spectra of 14 red giant stars in the Sagittarius dwarf spheroidal (Sgr dSph) galaxy. The stars span a wide range o…