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The SOFIA Massive (SOMA) Star Formation Survey. I. Overview and First Results
Tanaka, Kei E. I.; Zhang, Yichen; Tan, Jonathan C. +6 more
We present an overview and first results of the Stratospheric Observatory For Infrared Astronomy Massive (SOMA) Star Formation Survey, which is using the FORCAST instrument to image massive protostars from ∼10 to 40 µm. These wavelengths trace thermal emission from warm dust, which in Core Accretion models mainly emerges from the inner regio…
A test of Gaia Data Release 1 parallaxes: implications for the local distance scale
Casertano, Stefano; Riess, Adam G.; Bucciarelli, Beatrice +1 more
Aims: We present a comparison of Gaia Data Release 1 (DR1) parallaxes with photometric parallaxes for a sample of 212 Galactic Cepheids at a median distance of 2 kpc, and explore their implications on the distance scale and the local value of the Hubble constant H0.
Methods: The Cepheid distances are estimated from a recent ca…
The lensing and temperature imprints of voids on the cosmic microwave background
Cai, Yan-Chuan; Neyrinck, Mark; Mao, Qingqing +3 more
We have searched for the signature of cosmic voids in the cosmic microwave background (CMB), in both the Planck temperature and lensing-convergence maps; voids should give decrements in both. We use ZOBOV voids from the Data Release 12 Sloan Digital Sky Survey CMASS galaxy sample. We base our analysis on N-body simulations, to avoid a posteriori b…
Cosmological parameters, shear maps and power spectra from CFHTLenS using Bayesian hierarchical inference
Jaffe, Andrew H.; Heavens, Alan; Alsing, Justin
We apply two Bayesian hierarchical inference schemes to infer shear power spectra, shear maps and cosmological parameters from the Canada-France-Hawaii Telescope (CFHTLenS) weak lensing survey - the first application of this method to data. In the first approach, we sample the joint posterior distribution of the shear maps and power spectra by Gib…
H0LiCOW - II. Spectroscopic survey and galaxy-group identification of the strong gravitational lens system HE 0435-1223
Treu, T.; Auger, M. W.; Koopmans, L. V. E. +15 more
Galaxies located in the environment or along the line of sight towards gravitational lenses can significantly affect lensing observables, and can lead to systematic errors on the measurement of H0 from the time-delay technique. We present the results of a systematic spectroscopic identification of the galaxies in the field of view of th…
Gaia Data Release 1. The photometric data
Gilmore, G.; Harrison, D. L.; Evans, N. W. +91 more
Context. This paper presents an overview of the photometric data that are part of the first Gaia data release.
Aims: The principles of the processing and the main characteristics of the Gaia photometric data are presented.
Methods: The calibration strategy is outlined briefly and the main properties of the resulting photometry are presen…
The geological history of Northeast Syrtis Major, Mars
Mustard, John F.; Bramble, Michael S.; Salvatore, Mark R.
As inferred from orbital spectroscopic data, Northeast Syrtis Major bears considerable mineral diversity that spans the Noachian-Hesperian boundary despite its small geographic area. In this study we use observations from the High Resolution Imaging Science Experiment, supplemented with Context Camera imagery, to characterize and map the lateral e…
Galactic-scale Feedback Observed in the 3C 298 Quasar Host Galaxy
Armus, Lee; Larkin, James E.; Wright, Shelley A. +3 more
We present high angular resolution multiwavelength data of the 3C 298 radio-loud quasar host galaxy (z = 1.439) taken using the W.M. Keck Observatory OSIRIS integral field spectrograph (IFS) with adaptive optics, the Atacama Large Millimeter/submillimeter Array (ALMA), the Hubble Space Telescope (HST) WFC3, and the Very Large Array (VLA). Extended…
The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects
Henning, Thomas; Terada, Hiroshi; Usuda, Tomonori +49 more
We present high-contrast observations of 68 young stellar objects (YSOs) that have been explored as part of the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS) survey on the Subaru telescope. Our targets are very young (<10 Myr) stars, which often harbor protoplanetary disks where planets may be forming. We achieve a typical c…
Millimetre-wave emission from an intermediate-mass black hole candidate in the Milky Way
Oka, Tomoharu; Tsujimoto, Shiho; Iwata, Yuhei +2 more
It is widely accepted that black holes with masses greater than a million solar masses (M⊙) lurk at the centres of massive galaxies. The origins of such `supermassive' black holes (SMBHs) remain unknown1, although those of stellar-mass black holes are well understood. One possible scenario is that intermediate-mass black hole…