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MULTIWAVELENGTH MONITORING OF THE DWARF SEYFERT 1 GALAXY NGC 4395. I. A REVERBERATION-BASED MEASUREMENT OF THE BLACK HOLE MASS
A reverberation-mapping program on NGC 4395, the least luminous known Seyfert 1 galaxy, undertaken with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope yields a measurement of
PLANETARY CONSTRUCTION ZONES IN OCCULTATION: DISCOVERY OF AN EXTRASOLAR RING SYSTEM TRANSITING A YOUNG SUN-LIKE STAR AND FUTURE PROSPECTS FOR DETECTING ECLIPSES BY CIRCUMSECONDARY AND CIRCUMPLANETARY
The large relative sizes of circumstellar and circumplanetary disks imply that they might be seen in eclipse in stellar light curves. We estimate that a survey of ~104 young (~10 million year old)
The radial velocity experiment (RAVE): First data release
TLDR
The first data release of the Radial Velocity Experiment (RAVE) is presented and it is demonstrated that the radial velocities derived for the first data set do not show any systematic trend with color or signal-to-noise ratio.
The Frequency of Barred Spiral Galaxies in the Near-Infrared*
We have determined the fraction of barred galaxies in the H-band for a statistically well-defined sample of 186 spirals drawn from the Ohio State University Bright Spiral Galaxy Survey. We find 56%
Predictions for a planet just inside Fomalhaut's eccentric ring
We propose that the eccentricity and sharpness of the edge of Fomalhaut’s disk are due to a planet just interior to the ring edge. The collision timescale consistent with the disk opacity is long
Near-Infrared and Optical Morphology of Spiral Galaxies
We announce the initial release of data from the Ohio State University (OSU) Bright Spiral Galaxy Survey, a BVRJHK imaging survey of a well-defined sample of 205 bright, nearby spiral galaxies. We
Sagittarius A* Companion S0-2: A Probe of Very High Mass Star Formation
The star S0-2, which is orbiting Sgr A* with a 15 yr period, almost certainly did not form in situ. We propose that it was injected into this close orbit by the tidal disruption of a massive-star
Structure in the Eridani Dusty Disk Caused by Mean Motion Resonances with a 0.3 Eccentricity Planet at Periastron
The morphology of the Eridani dust ring is reproduced by a numerical simulation of dust particles captured into the 5 : 3 and 3 : 2 exterior mean motion resonances with a 0.3 eccentricity 10-4 M☉
Spectral energy distributions of Seyfert nuclei
We present nuclear spectral energy distributions (SEDs) in the range 0.4-16 lm for an expanded CfA sample of Seyfert galaxies. The spectral indexes (f� / � � � IR) from 1 to 16 lm range fromIR � 0.9
Spitzer Observations of the Dusty Warped Disk of Centaurus A
Spitzer mid-infrared images of the dusty warped disk in the galaxy Centaurus A show a parallelogram-shaped structure. We successfully model the observed mid-infrared morphology by integrating the
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