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Near-Infrared Spectra of High-Albedo Outer Main-Belt Asteroids
Shirahata, Mai; Hasegawa, Sunao; Usui, Fumihiko +4 more
Most outer main-belt asteroids have low albedos because of their carbonaceouslike bodies. However, infrared satellite surveys have revealed that some asteroids have high albedos, which may suggest the presence of unusual surface minerals for those primitive objects. We present new near-infrared (1.1-2.5 µm) spectra of four outer main-belt as…
Erratum: “The Herschel Inventory of the Agents of Galaxy Evolution (Heritage) in the Magellanic Clouds, a Herschel Open Time Key Program” (2013, AJ, 146, 62)
Poglitsch, A.; van Loon, J. Th.; Bernard, J. -P. +52 more
A Warp in Progress: H I and Radio Continuum Observations of the Spiral NGC 3145
Brinks, Elias; Struck, Curtis; Elmegreen, Bruce G. +2 more
VLA H i observations and λ6 cm radio continuum observations are presented of the barred-spiral galaxy NGC 3145. In optical images NGC 3145 has stellar arms that appear to cross, forming “X”-features. Our radio continuum observations rule out shock fronts at three of the four “X”-features, and our H i data provide evidence of gas motions perpendicu…
On the Hipparcos Accuracy Using Binary Stars as a Calibration Tool
Docobo, J. A.; Andrade, M.
Stellar binary systems, specifically those that present the most accurate available orbital elements, are a reliable tool to test the accuracy of astrometric observations. We selected all 35 binaries with these characteristics. Our objective is to provide standard uncertainties for the positions and parallaxes measured by Hipparcos relative to thi…
Far-ultraviolet Spectroscopy of Old Novae. I. V603 Aquila
Sion, Edward M.; Godon, Patrick; Bisol, Alexandra
We present the results of a synthetic spectral analysis of the far-ultraviolet archival International Ultraviolet Explorer, Hubble Space Telescope (HST), and FUSE observations of the fast old nova V603 Aql, obtained some 90 years after its 1918 nova outburst. Our analysis utilizes the new Hubble fine guidance sensor parallax distance for this near…
CSI 2264: Simultaneous Optical and Infrared Light Curves of Young Disk-bearing Stars in NGC 2264 with CoRoT and Spitzer—Evidence for Multiple Origins of Variability
Hora, Joseph; Holtzman, Jon; Aigrain, Suzanne +42 more
We present the Coordinated Synoptic Investigation of NGC 2264, a continuous 30 day multi-wavelength photometric monitoring campaign on more than 1000 young cluster members using 16 telescopes. The unprecedented combination of multi-wavelength, high-precision, high-cadence, and long-duration data opens a new window into the time domain behavior of …
From Binaries to Multiples. I. Data on F and G Dwarfs within 67 pc of the Sun
Tokovinin, Andrei
Data on the multiplicity of F- and G-type dwarf stars within 67 pc of the Sun are presented. This distance-limited sample based on the Hipparcos catalog contains 4847 primary stars (targets) with 0.5 < V - IC < 0.8 and is >90% complete. There are 2196 known stellar pairs; some of them belong to 361 hierarchical systems from tri…
Probing for Exoplanets Hiding in Dusty Debris Disks: Disk Imaging, Characterization, and Exploration with HST/STIS Multi-roll Coronagraphy
Henning, Thomas; Stark, Christopher C.; Weinberger, Alycia J. +16 more
Spatially resolved scattered-light images of circumstellar debris in exoplanetary systems constrain the physical properties and orbits of the dust particles in these systems. They also inform on co-orbiting (but unseen) planets, the systemic architectures, and forces perturbing the starlight-scattering circumstellar material. Using Hubble Space Te…
Type Ia Supernova Rate Measurements to Redshift 2.5 from CANDELS: Searching for Prompt Explosions in the Early Universe
Ferguson, Henry C.; Grogin, Norman A.; Koekemoer, Anton M. +35 more
The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) was a multi-cycle treasury program on the Hubble Space Telescope (HST) that surveyed a total area of ~0.25 deg2 with ~900 HST orbits spread across five fields over three years. Within these survey images we discovered 65 supernovae (SNe) of all types, out to z …
Transmission Spectroscopy of the Hot Jupiter WASP-12b from 0.7 to 5 µm
Madhusudhan, Nikku; Stevenson, Kevin B.; Désert, Jean-Michel +5 more
Since the first report of a potentially non-solar carbon-to-oxygen ratio (C/O) in its dayside atmosphere, the highly irradiated exoplanet WASP-12b has been under intense scrutiny and the subject of many follow-up observations. Additionally, the recent discovery of stellar binary companions ~1'' from WASP-12 has obfuscated interpretation of the obs…